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Abstract: This article introduces audio-enhanced paper photos enabled by digital pen technology as an interaction paradigm for supporting and understanding emotional wellbeing in late adulthood, particularly in the context of communication therapy activities and related social interactions. We describe the development of a multimodal pen-based system that enables creation of audio-enhanced paper photos and the application of this technology to two domains: older adults with aphasia working to regain expressive and receptive language after a stroke, and older adults wanting to interact with a family member of advanced age with memory loss. Our pen-based authoring software enables caregivers, both therapists and family members, to create audio-enhanced paper photos to encourage meaningful and emotionally appropriate interaction with the older adults they support. We examine the ways in which emotional information is embedded in audio-enhanced photos and how this approach addresses various aspects of emotional wellbeing in late adulthood. [Copyright &y& Elsevier]

This paper develops a model in which a sender strategically communicates with a group of receivers whose payoffs depend on the sender's information. It is shown that aggregate payoff externalities create an endogenous conflict of interests between the sender and the receivers, rendering full information revelation, in general infeasible. We demonstrate that an exogenous bias in the sender's preferences can improve public information provision and raise welfare. Two applications of the setup are discussed. [ABSTRACT FROM AUTHOR]

How diverse animal communication signals have arisen is a question that has fascinated many. Xenopus frogs have been a model system used for three decades to reveal insights into the neuroendocrine mechanisms and evolution of vocal diversity. Due to the ease of studying central nervous system control of the laryngeal muscles in vitro, Xenopus has helped us understand how variation in vocal communication signals between sexes and between species is produced at the molecular, cellular, and systems levels. Yet, it is becoming easier to make similar advances in non-model organisms. In this paper, we summarize our research on a group of frog species that have evolved a novel hind limb signal known as 'foot flagging.' We have previously shown that foot flagging is androgen dependent and that the evolution of foot flagging in multiple unrelated species is accompanied by the evolution of higher androgen hormone sensitivity in the leg muscles. Here, we present new preliminary data that compare patterns of androgen receptor expression and neuronal cell density in the lumbar spinal cord – the neuromotor system that controls the hind limb – between foot-flagging and non-foot-flagging frog species. We then relate our work to prior findings in Xenopus , highlighting which patterns of hormone sensitivity and neuroanatomical structure are shared between the neuromotor systems underlying Xenopus vocalizations and foot-flagging frogs' limb movement and which appear to be species-specific. Overall, we aim to illustrate the power of drawing inspiration from experiments in model organisms, in which the mechanistic details have been worked out, and then applying these ideas to a non-model species to reveal new details, further complexities, and fresh hypotheses. [Display omitted] • Communication signal diversification is associated with evolution of androgen-mediated traits • Comparing Xenopus and foot-flagging frogs reveals distinct neuroendocrine patterns associated with signal evolution • Comparative data on androgen receptor distribution and cell density in foot-flagging frog spinal cord is presented • Lumbar spinal circuitry may differ in foot-flagging frogs compared to other species [ABSTRACT FROM AUTHOR]

Repeated communication in networks is often considered to impose large information requirements on individuals, and for that reason, the literature has resorted to use heuristics, such as DeGroot's, to compute how individuals update beliefs. In this paper we propose a new heuristic which we term the Bayesian Peer Influence (BPI) heuristic. The BPI accords with Bayesian updating for all (conditionally) independent information structures. More generally, the BPI can be used to analyze the effects of correlation neglect on communication in networks. We analyze the evolution of beliefs and show that the limit is a simple extension of the BPI and parameters of the network structure. We also show that consensus in society might change dynamically, and that beliefs might become polarised. These results contrast with those obtained in papers that have used the DeGroot heuristic. [ABSTRACT FROM AUTHOR]

Variation in transmission characteristics of signalling environments is hypothesized to influence the evolution of signalling behaviour, signal form and sensory systems of animals. However, many animals communicate across multiple signalling environments, raising the possibility that some displays have evolved explicitly to enable communication across heterogeneous signalling environments. In the present paper, we explored multiple potential impacts of the signalling environment on courtship displays in the wolf spider Schizocosa retrorsa. Males of this species court females on a range of substrate types using a combination of vibratory and visual signals. Through a series of experiments, we investigated (1) activity patterns and male microhabitat use, (2) component-specific vibratory signal transmission across natural substrate types and (3) copulation success across substrate types and light levels. We found that, in the laboratory, (1) female and male S. retrorsa are most active during daylight hours, and mature males resided and courted most on leaf litter, as compared to their natural habitat types of pine litter or sand; (2) male vibratory courtship signals transmitted best on leaf litter, yet (3) males obtained the highest copulation success on sand, regardless of light level. Our results demonstrate that copulation in S. retrorsa is more likely to occur in environments with suboptimal vibratory signal transmission, irrespective of visual signal transmission. We suggest that these results point to (1) a minor role of bimodal (vibratory and visual) courtship signalling in S. retrorsa , (2) the importance of an additional signalling modality (most likely air particle movement), (3) a role of other substrate-dependent factors (e.g. predation risk), and/or (4) a reversed female preference for vibratory signalling. • Male and female S. retrorsa were most active during daylight hours. • Male vibratory signals transmitted better on leaf litter than on pine litter or sand. • Males resided and courted most on leaf litter. • Males obtained the highest copulation success on sand, regardless of light level. • We found discordance in signal transmission and copulation success in S. retrorsa. [ABSTRACT FROM AUTHOR]

Consider a finite two-player game with one round of communication. Restrict players to a subset of “monotonic” strategies. The paper justifies this restriction. The paper provides sufficient conditions under which the strategies of the restricted game that survive iterative deletion of weakly dominated strategies favor the agent who can communicate. [ABSTRACT FROM AUTHOR]

Research has shown that natural language communication is more effective than intention-signaling in promoting coordination. Our paper studies the reasons behind this finding. We hypothesize that, when communicating with natural language, people use and respond to both intentions and attitudes, with attitude indicating the strength of a message sender's desire to have her message followed. We test our hypothesis using controlled laboratory experiments. We find that: (i) free-form messages include both signaled intentions and attitudes; (ii) people respond to both intentions and attitudes when making decisions; and (iii) the use of attitude in natural language messages significantly improves coordination. [ABSTRACT FROM AUTHOR]

In this paper, the second in a series, the authors have extended and implemented their computational algorithms for improving the scalability of CSD (Computational Structural Dynamics) and FSI (Fluid-Structure Interaction) simulations on emerging architectures like multicore High Performance Computing (HPC) platforms. These algorithmic developments and extensions are classified into two categories: (i) enhanced scalability for CSD simulations on multicore platforms, (ii) newer ideas for running FSI simulations. In the first category, the authors employed the ideas developed in the first paper of this series including the multilevel partitioning strategy, next generation optimized communication procedure and better memory management to get enhanced scalability for CSD simulations. In the second category, the authors came up with a novel solver specific multicore-FSI optimal partitioning so as to improve the overall FSI scalability. After implementing the new "intelligent partitioning" algorithm, a speedup ratio of nearly 2.5x was obtained for the total time. The intelligent partitioning algorithm optimizes the number of solid domains relative to the number of fluid domains to optimize the overall FSI solution, irrespective of the type of the flow solver. In general, the authors have demonstrated (i) good, almost linear scalability for aeroelastic applications with several millions of cells on multicore platforms with thousands of cores, (ii) significant improvement in the scalability for smaller FSI problems using the intelligent partitioning. [ABSTRACT FROM AUTHOR]

This paper is the first to compare the efficiency-enhancing capacity of two communication protocols in experimental stag-hunt games. The traditional restricted protocol that allows communicating intentions only fails to improve efficiency over the no-communication conditions. When players are allowed to send any messages (free-form), the majority of them send messages that underscore a reason for which players should choose the efficient action. To explore further whether the absence of such a richer message in the traditional restricted communication protocol can be the cause of its ineffectiveness, we ran an additional treatment that included the intention-based message as well as a reason-based message. The data show that the richer restricted communication is as effective as free-form communication, and that reason-based messages are an effective efficiency-enhancing device in this class of coordination games regardless of whether the protocol is restricted or free-form. [ABSTRACT FROM AUTHOR]

This paper explores higher-order uncertainty about message availability in communication games with perfectly aligned preferences. It can be impossible to achieve ex post efficiency in equilibrium even when it is mutual knowledge that the size of the set of available messages would be sufficient to convey all payoff-relevant information. There are equilibria that achieve ex post efficiency whenever a rich language condition is satisfied: the set of available messages is large relative to the sender's assessment of the number of information sets of the sender the receiver considers possible. Weaker conditions suffice if one adopts an ex ante perspective. [ABSTRACT FROM AUTHOR]

There is a wide variety of commercial bread types and the present study identifies potential pitfalls in consumer evaluations of bread from a health perspective. The aim is to describe consumers' health-related perceptions of bread by exploring which health-related quality attributes consumers associate with bread and whether there are differences with regard to age, gender and education level. A postal and web-based sequential mixed-mode survey (n = 1134, 62% responded online and 38% by paper) with open-ended questions and an elicitation task with pictures of commercial breads were used. Responses were content analyzed and inductively categorized. Three fourths (n = 844) knew of breads they considered healthy; these were most commonly described using terms such as "coarse," "whole grain," "fiber rich," "sourdough," "crisp," "less sugar," "dark," "rye," "seeds," "a commercial brand," "homemade" and "kernels." The breads were perceived as healthy mainly because they "contain fiber," are "good for the stomach," have good "satiation" and beneficial "glycemic properties." The frequency of several elicited attributes and health effects differed as a function of age group (18-44 vs. 45-80 years), gender and education level group (up to secondary education vs. university). Difficulties identifying healthy bread were perceived as a barrier for consumption especially among consumers with a lower education level. Several of the health effects important to consumers cannot be communicated on food packages and consumers must therefore use their own cues to identify these properties. This may lead to consumers being misled especially if a bread is labeled e.g., as a sourdough bread or a rye bread, despite a low content. [ABSTRACT FROM AUTHOR]

Modern waste management provision seeks to meet challenging objectives and strategies while reflecting community aspirations and ensuring cost-effective compliance with statutory obligations. Its social acceptability, which affects both what systems (infrastructure) can be put in place and to what extent their implementation will be successful, is a multi-dimensional phenomenon, often not well understood. In light of the growing evidence that decisions to build new infrastructure are often contested by the public, there is a clear need to understand the role of scientific evidence in public perception, particularly as environmental infrastructure delivery is often objected to by the public on environmental grounds. In this paper the need for waste management infrastructure is reviewed, and the way its delivery in the UK has evolved is used as an example of the role of public perception in the planning and delivery of waste facilities. Findings demonstrate the vital role of public communication in waste management infrastructure delivery. Public perception must be taken into account early in the decision making process, with the public informed and engaged from the start. There is a pressing need for people not simply to accept but to understand and appreciate the need for infrastructure, the nature of infrastructure investments and development, the costs and the benefits involved, and the technological aspects. Scientific evidence and literacy have a critical role to play, facilitating public engagement in a process that empowers people, allowing them to define and handle challenges and influence decisions that will impact their lives. Problem ownership, and an increased probability of any solutions proposed being selected and implemented successfully are potential benefits of such approach. [ABSTRACT FROM AUTHOR]

An optimal convergence condition for Newton iteration is presented which is at least as weak as the one obtained by Traub and Woźniakowski leading also to an at least as precise complexity. The novelty of the paper is the introduction of a restricted convergence domain. That is we find a more precise location where the Newton iterates lie than in earlier studies. Consequently the Lipschitz constants are at least as small as the ones used before. This way and under the same computational cost, we extend the local convergence as well as the complexity of Newton iteration. Numerical examples further justify the theoretical results. [ABSTRACT FROM AUTHOR]

Abstract: Non-speaking people who use Augmentative and Alternative Communication (AAC) systems typically have low rates of communication which reduces their ability to interact with others. Research and development continues in the quest to improve the effectiveness of AAC systems in terms of communication rate and impact. One strategy involves making the basic unit of communication an entire utterance, and designing the AAC system to make the storage, retrieval and production of utterances as easy and efficient as possible. Some approaches take this further and include texts, narratives and/or multimedia material for use in conversation. AAC systems operating in such a manner require a structure for containing and managing conversational material and supporting the production of output during conversation. Ideally such a structure should be modelled on the way actual conversations proceed. A number of partial models for this have been presented thus far. These are reviewed in the paper and an integrated model is then proposed that includes both the structure of a conversation and the way in which an AAC system might produce conversational output (e.g. utterances, texts, multimedia items or combinations of these). Modelling the process in this way gives a structure with which an AAC system can organize the support and guidance that it offers to the person using the system. The paper concludes with consideration of three areas of development for further investigation. [Copyright &y& Elsevier]

In their 1960 paper about bats using echolocation to find and track flying insects, Donald R. Griffin, Fredric A. Webster and Charles R. Michael (Animal Behaviour, 8, 141–154) changed the face of research on this behaviour. They moved the field of echolocation from documenting that this animal or that one could echolocate to demonstrating an adaptive value of echolocation. They used experiments with captive bats, fruit flies, mosquitoes and crane flies to illustrate how bats used a ‘feeding buzz’ as they closed with their prey. The topic remains current today, and one of the first papers in Nature in 2013 (Jacobsen et al., 493, 93–96) presented more information about feeding buzzes building on the platform that Griffin et al. had established. In the intervening period, literally thousands of papers have been published about echolocation, demonstrating how curious minds, technological advances and basic information about natural history can result in diversification of a field of research. We have learned that bats can use echolocation to recognize water surfaces and to find insect prey on spider webs. The continuum between orientation and social functions of echolocation means that this behaviour not only influences foraging and negotiating obstacle paths, but is also a cue that brings individuals together. Acoustic wars between bats and potential insect prey have further enriched the discipline by identifying acoustic measures and countermeasures used by the players. Parallel studies with toothed whales have provided further examples of the enrichment that echolocation brings to the lives of animals and those who study them. [ABSTRACT FROM AUTHOR]

Abstract: This paper outlines the first Asian network-based speech-to-speech translation system developed by the Asian Speech Translation Advanced Research (A-STAR) consortium. Eight research groups comprising the A-STAR members participated in the experiments, covering nine languages, i.e., eight Asian languages (Hindi, Indonesian, Japanese, Korean, Malay, Thai, Vietnamese, and Chinese) and English. Each A-STAR member contributed one or more of the following spoken language technologies: automatic speech recognition, machine translation, and text-to-speech through Web servers. The system was designed to translate common spoken utterances of travel conversations from a given source language into multiple target languages in order to facilitate multiparty travel conversations between people speaking different Asian languages. It covers travel expressions including proper nouns that are names of famous places or attractions in Asian countries. In this paper, we describe the issues of developing spoken language technologies for Asian languages, and discuss the difficulties involved in connecting different heterogeneous spoken language translation systems through Web servers. This paper also presents speech-translation results including subjective evaluation, from the first A-STAR field testing which was carried out in July 2009. [Copyright &y& Elsevier]

This paper uses a Bayesian mechanism design approach to investigate the effects of communication in a threshold public goods game. Individuals have private information about contribution costs. Individuals can each make a discrete contribution. If the number of contributors is at least equal to the threshold, a public benefit accrues to all members of the group. We experimentally implement three different communication structures prior to the decision move: (a) simultaneous exchange of binary messages, (b) larger finite numerical message space and (c) unrestricted text chat. We obtain theoretical bounds on the efficiency gains that are obtainable under these different communication structures. In an experiment with three person groups and a threshold of two, we observe significant efficiency gains only with the richest of these communication structures, where participants engage in unrestricted text chatting. In that case, the efficiency bounds implied by mechanism design theory are achieved. [ABSTRACT FROM AUTHOR]

This paper shows that the basic unit of information aggregation described by the Geanakoplos and Polemarchakis (1982) posterior revision process does not always produce public statistics that are closer to the full information posterior than the common prior. I study this process of back and forth communication between two individuals with private signals by introducing white noise into payoff computations, defining the evolution of common knowledge, and providing conjectures on the resulting public statistics. I then develop a computational method to ex-ante rank information structures on their tolerance to noise. Subjects' behavior in a laboratory experiment is consistent with the model's prediction: though the posterior revision process do move reports towards each other and towards the full information posterior, noise persists and aggregation is incomplete. As predicted, aggregation attempts in the two least noise-tolerant information structures result in public statistics that perform worse than the common prior. [ABSTRACT FROM AUTHOR]

Sustainable remediation requires a balanced decision-making process in which environmental, economic and social aspects of different remediation options are all considered together and the optimum remediation solution is selected. More attention has been paid to the evaluation of environmental and economic aspects, in particular to reduce the human and environmental risks and the remediation costs, to the exclusion of social aspects of remediation. This paper investigates how social aspects are currently considered in sustainability assessments of remediation projects. A selection of decision support tools (DSTs), used for the sustainability assessment of a remediation project, is analyzed to define how social aspects are considered in those tools. The social indicator categories of the Sustainable Remediation Forum – United Kingdom (SuRF-UK), are used as a basis for this evaluation. The consideration of social aspects in the investigated decision support tools is limited, but a clear increase is noticed in more recently developed tools. Among the five social indicator categories defined by SuRF-UK to facilitate a holistic consideration of social aspects of a remediation project only “Human health and safety” is systematically taken into account. “Neighbourhood and locality” is also often addressed, mostly emphasizing the potential disturbance caused by the remediation activities. However, the evaluation of ‘Ethics and Equality’, Communities and community involvement’, and ‘Uncertainty and evidence’ is often neglected. Nevertheless, concrete examples can be found in some of the investigated tools. Specific legislation, standard procedures, and guidelines that have to be followed in a region or country are mainly been set up in the context of protecting human and ecosystem health, safety and prevention of nuisance. However, they sometimes already include some of the aspects addressed by the social indicators. In this perspective the use of DST to evaluate the sustainability of a site remediation project, should be tuned to the legislation, guidelines and procedures that are in force in a specific country or region. [ABSTRACT FROM AUTHOR]

It has been widely noted that the introduction of insects in Westerns' diet might be a promising path towards a more sustainable food consumption. However, Westerns' are almost disgusted and sceptical about the eating of insects. In the current paper we report the results of an experiment conducted in two European countries-Denmark and Italy-different for food culture and familiarity with the topic of eating insects. We investigated the possibility to foster people's willingness to eat insect-based food through communication, also comparing messages based on individual vs. societal benefits of the eating of insects. Communication proved to be effective on intention and behaviour, and the societal message appeared to be more robust over time. The communication effect is significant across nation, gender, and previous knowledge about the topic. In addition, we investigated the impact of non-conscious negative associations with insects on the choice to eat vs. not eat insect-based food. Implicit attitudes proved to be a powerful factor in relation to behaviour, yet they did not impede the effectiveness of communication. [ABSTRACT FROM AUTHOR]

What is the power of a spoken agreement, a printed declaration or a private letter? Early modern empires worked through historical geographies of oral and which spanned large spaces. These forms of communication have to be understood in terms of the ways in which the meanings and uses of speech, script and print were differentiated from each other while these varied ways of communicating were also combined in practice. This paper explores the power relations of imperial communication through the story of the conduct and aftermath of the Jamaican Maroon War of 1795-6. It details the historical geographies of speech that legitimated Britain's empire, the uses of printing that shaped relationships between the imperial state and its subjects, and the forms of manuscript communication through which imperial administration was organised. The paper argues that these deployments of speech, script and print - particularly by Jamaica's governor, the earl of Balcarres - aimed to win a war of words. This was, however, simultaneously undercut by the varied meanings and uses of speech, script and print, by his adversaries' deployment of them and by the transatlantic geography of imperial communication. [ABSTRACT FROM AUTHOR]

Abstract: Effective task scheduling is essential for obtaining high performance in heterogeneous computing systems (HCS). However, finding an effective task schedule in HCS, requires the consideration of the heterogeneity of computation and communication. To solve this problem, we present a list scheduling algorithm, called Heterogeneous Earliest Finish with Duplicator (HEFD). As task priority is a key attribute for list scheduling algorithm, this paper presents a new approach for computing their priority which considers the performance difference in target HCS using variance. Another novel idea proposed in this paper is to try to duplicate all parent tasks and get an optimal scheduling solution. The comparison study, based on both randomly generated graphs and the graphs of some real applications, shows that our scheduling algorithm HEFD significantly surpasses other three well-known algorithms. [Copyright &y& Elsevier]

Abstract: This is the third in a series of three papers devoted to energy flow and entropy changes in chemical and biological processes, and their relations to the thermodynamics of computation. The previous two papers have developed reversible chemical transformations as idealizations for studying physiology and natural selection, and derived bounds from the second law of thermodynamics, between information gain in an ensemble and the chemical work required to produce it. This paper concerns the explicit mapping of chemistry to computation, and particularly the Landauer decomposition of irreversible computations, in which reversible logical operations generating no heat are separated from heat-generating erasure steps which are logically irreversible but thermodynamically reversible. The Landauer arrangement of computation is shown to produce the same entropy-flow diagram as that of the chemical Carnot cycles used in the second paper of the series to idealize physiological cycles. The specific application of computation to data compression and error-correcting encoding also makes possible a Landauer analysis of the somewhat different problem of optimal molecular recognition, which has been considered as an information theory problem. It is shown here that bounds on maximum sequence discrimination from the enthalpy of complex formation, although derived from the same logical model as the Shannon theorem for channel capacity, arise from exactly the opposite model for erasure. [Copyright &y& Elsevier]

Abstract: Discrimination capacity, i.e. the capacity to resolve signal components, is probably one of the most important properties of the analysis windows. For components separated by more than a DFT bin the discrimination capacity is determined by the bandwidth and shape of the window''s spectral main lobe and the side lobe fall-off rate. The new classical paper of Harris is a milestone where a plethora of windows is discussed and compared through the aforementioned parameters. However, those parameters fail to describe situations given by components clustered within a DFT bin bandwidth. In those cases the discrimination capacity is almost completely determined by the spectral phase of the analysis window, while the shape of the window''s magnitude spectrum has little effect. This paper is devoted to a specific class of asymmetric analysis windows capable of resolving components separated by less than a DFT bin. Those windows have recently been proposed and analytically discussed. However, a number of important properties have not been tackled. Herein, the asymmetric analysis windows are thoroughly described and compared to the classical analysis windows in various aspects. The main benefits of the proposed windows are extended discrimination capacity, robustness against additive noise and simple generation. These properties make them very good candidates for narrow-band spectrum analysis of mechanical systems. Results for some real-world examples are presented, showing the capability of the new windows to resolve closely spaced vibration modes when there is a lack of spectral resolution due to the finite register length. [Copyright &y& Elsevier]

Abstract: This paper describes our approach for the design and development of application systems for early stages of information design tasks. We view a computational tool as something that provides materials with which a designer interacts to create a situation that talks back to the designer. The interaction design of a tool, that is, the representations a user can generate and how the user can manipulate them with the tool, influences a user''s cognitive processes. The tool''s interaction design thus either fosters or hinders creativity in the early stages of information design. Our approach toward the interaction design of a tool for fostering creativity is first to understand the nature of early stages of information design tasks. We discuss four issues in support of the early stages of design based on theories in design and in human–computer interaction: (1) that available means of externalizations influence designers in deciding which courses of actions to take; (2) that designers generate and interact with not only a partial representation of the final artefact but also various external representations; (3) that designers produce externalizations to express a solution as well as to interpret the situations; and (4) that a design task proceeds as a hermeneutic circle—that is, designers proceed with projected meanings of representations and gradually revise and confirm those meanings. The above theoretical account of early stages of information design tasks has led us to identify three interaction design principles for tools for the early stages of information design: interpretation-rich representations, representations with constant grounding and interaction methods for hands-on generation and manipulation of the representations. To illustrate our point, we take ART#001, a tool for the early stages of writing, to apply the interaction design principles and examine how the interaction design of the tool fosters creativity in the early stages of information design. The paper concludes with a discussion of how we generalize the approach and build a framework to design and develop application systems for fostering creativity in the early stages of information design. [Copyright &y& Elsevier]

Abstract: Exploiting spatial and temporal locality is essential for obtaining high performance on modern computers. Writing programs that exhibit high locality of reference is difficult and error-prone. Compiler researchers have developed loop transformations that allow the conversion of programs to exploit locality. Recently, transformations that change the memory layouts of multi-dimensional arrays—called data transformations—have been proposed. Unfortunately, both data and loop transformations have some important drawbacks. In this work, we present an integrated framework that uses loop and data transformations in concert to exploit the benefits of both approaches while minimizing the impact of their disadvantages. Our approach works inter-procedurally on acyclic call graphs, uses profile data to eliminate layout conflicts, and is unique in its capability of resolving conflicting layout requirements of different references to the same array in the same nest and in different nests for regular array-based applications. The optimization technique presented in this paper has been implemented in a source-to-source translator. We evaluate its performance using standard benchmark suites and several math libraries (complete programs) with large input sizes. Our experimental results show that the proposed approach improves the performance of the applications optimized by using the current state-of-the-art techniques by 8.2% on the average. This reduction comes from three important characteristics of the technique, namely, resolving layout conflicts between references to the same array in a loop nest, determining a suitable order to propagate layout modifications across loop nests, and propagating layouts between different procedures in the program—all in a unified framework. The locality optimization technique presented in this paper tries to exploit locality in the innermost loop positions. This strategy, in most cases, generates dependence-free outer loops, which can be safely parallelized. [Copyright &y& Elsevier]

Abstract: This paper presents a total ordering protocol for group communication systems with multiple overlapping groups. Our protocol takes advantages of the simplicity of the sequencer-based approach, but employs multiple sequencers to achieve better load balance. For a given message, the sequencer of the destination group constructs a sequencing array by requesting for relative delivery positions from the sequencers of the overlapping groups. The sequencing array is used by any receiving process to determine the delivery sequence of the message. The notion of logical clock is used for determining the relative delivery sequences of the messages. The coordination between the sequencers is performed in a simple, asynchronous and non-blocking manner. The delivery operation at a receiving process is very simple, and a message can be delivered as soon as it becomes deliverable. These factors amount to a significant saving of the computing and communication overhead for the system. As the protocol demands the minimum effort from the group members it is suitable for mobile computing environment in which mobile devices are typically tight on resources. In the paper, we also present some ways to enhance the performance of the system. Extension of the protocol to encompass the preservation of causality, the dynamic group membership and the failure recovery is included in the paper. [Copyright &y& Elsevier]

Many distributed applications must meet stringent performance requirements even when the performance characteristics of the underlying systems and networks vary significantly at runtime. Runtime adaptation can be used to tolerate such changes, but sophisticated adaptive distributed programs can be extremely challenging to design, implement and debug. This paper proposes a language called Program Control Language (PCL) that provides a novel means of specifying adaptations in distributed applications. PCL is based on an abstract, global representation of a distributed program (a static task graph), which enables a programmer to reason about and to describe a wide range of application-specific adaptation strategies at a high level, using a few key mechanisms. PCL provides simple high-level syntax for local and remote adaptation operations, local and remote performance monitoring (and aggregation), and for performing adaptations synchronously or asynchronously with respect to the execution of the application process initiating the adaptation. The global task graph representation enables remote performance metrics and adaptation operations to be specified in simple global terms by any process, and the compiler and runtime system automatically perform the communication and synchronization required for the remote operations. The paper describes the conceptual adaptation framework, the PCL language, and our implementation of the PCL compiler and runtime system. The paper uses three adaptative applications examples to illustrate the capabilities and benefits of PCL, and to show experimentally that the performance overheads of using PCL for implementing an adaptive application are negligible. [Copyright &y& Elsevier]

This paper describes the results of a research project aimed at implementing a ‘realistic’ 3D Embodied Agent that can be animated in real-time and is ‘believable and expressive’: that is, able to coherently communicate complex information through the combination and the tight synchronisation of verbal and nonverbal signals. We describe, in particular, how we ‘animate’ this Agent (that we called Greta) so as to enable her to manifest the affective states that are dynamically activated and de-activated in her mind during the dialog with the user. The system is made up of three tightly interrelated components:

In the past few years, as the number of dialogue systems has increased, there has been an increasing interest in the use of natural language generation in spoken dialogue. Our research assumes that trainable natural language generation is needed to support more flexible and customized dialogues with human users. This paper focuses on methods for automatically training the sentence planning module of a spoken language generator. Sentence planning is a set of inter-related but distinct tasks, one of which is sentence scoping, i.e., the choice of syntactic structure for elementary speech acts and the decision of how to combine them into one or more sentences. The paper first presents SPoT, a trainable sentence planner, and a new methodology for automatically training SPoT on the basis of feedback provided by human judges. Our methodology is unique in neither depending on hand-crafted rules nor on the existence of a domain-specific corpus. SPoT first randomly generates a candidate set of sentence plans and then selects one. We show that SPoT learns to select a sentence plan whose rating on average is only 5% worse than the top human-ranked sentence plan. We then experimentally evaluate SPoT by asking human judges to compare SPoT''s output with a hand-crafted template-based generation component, two rule-based sentence planners, and two baseline sentence planners. We show that SPoT performs better than the rule-based systems and the baselines, and as well as the hand-crafted system. [Copyright &y& Elsevier]

This paper identifies two classes of communication patterns that occur in distributed computations and explores their properties. It first examines local patterns, primarily IO and OI intervals, that occur at nodes in distributed computations. These local patterns form building blocks that are then used to define the global patterns, termed segments and paths, that occur across nodes in distributed computations. By controlling the predicates on the local patterns used to define segments and paths, various types of segments and paths can be defined. While a causal chain captures only the causality relation, it turns out that some of the other message sequences that do not capture causality also play a significant role in the analysis of a distributed computation. The paper presents a framework and shows that a number of key concepts and structures characterizing distributed computations are specific instantiations of the communication patterns identified in the framework. [Copyright &y& Elsevier]

Sustainability reports may play an important role as a supporting tool in the transition of organisations towards more circular economy models, since their content can help to measure, monitor and communicate the organisations' transition and to establish goals in the short/medium term. The aim of this study is to determine whether it is possible to calculate indicators capable of measuring the transition of organisations towards circularity from the information that they are currently communicating in their Corporate Sustainability Reports (CSRs), and what information would need to be incorporated in these reports to successfully carry out this procedure. To this end, by applying a three-step methodology, 34 indicators grouped into 10 categories were proposed to measure the level of circularity of organisations. This was completed with a detailed proposal of units/metrics to measure the indicators, based on those that organisations commonly use in their CSRs. For this purpose, information from 8 international programmes/frameworks that measure circularity at the territorial level was combined with circularity information that organisations are currently communicating in their CSRs. Finally, the proposed set of indicators and metrics were applied to a Spanish organisation dedicated to the forestry and paper sector with a CSR based on GRI-Standards. The results demonstrated that 25 of the 34 proposed indicators (74%) can be measured directly using the information included in the CSRs. • Which indicators measure the advance of organisations towards circularity? • Which information organisations communicate in their Sustainability Reports (CSR)? • Can be circular indicators calculated using data from CSR? • Case study: 74% of the circular indicators can be calculated using data from CSR. [ABSTRACT FROM AUTHOR]

Consumer trust in food system actors is foundational for ensuring consumer confidence in food safety. As food labelling is a direct communication between consumers and food system actors, it may influence consumer perceptions of actor trustworthiness. This study explores the judgements formed about the trustworthiness of the food system and its actors through labelling, and the expectations these judgements are based on. In-depth, semi-structured interviews with 24 Australian consumers were conducted. Theoretical sampling focussed on shopping location, dietary requirements, rurality, gender, age and educational background. The methodological approach used (adaptive theory) enabled emerging data to be examined through the lens of a set of guiding theoretical concepts, and theory reconsidered in light of emerging data. Food labelling acted as a surrogate for personal interaction with industry and government for participants. Judgements about the trustworthiness of these actors and the broader food system were formed through interaction with food labelling and were based on expectations of both competence and goodwill. Interaction with labelling primarily reduced trust in actors within the food system, undermining trust in the system as a whole. Labelling has a role as an access point to the food system. Access points are points of vulnerability for systems, where trust can be developed, reinforced or broken down. For the participants in this study, in general labelling demonstrates food system actors lack goodwill and violate their fiduciary responsibility. This paper provides crucial insights for industry and policy actors to use this access point to build, rather than undermine, trust in food systems. [ABSTRACT FROM AUTHOR]

Seizure clusters in epilepsy can result in serious outcomes such as missed work or school, postictal psychosis, emergency room visits, or hospitalizations, and yet they are often not included in discussions between health-care professionals (HCPs) and their patients. The purpose of this paper was to describe and compare consumer (patient and caregivers) and professional understanding of seizure clusters and to describe how consumers and HCPs communicate regarding seizure clusters. We reviewed social media discussion sites to explore consumers' understanding of seizure clusters. We analyzed professional (medical) literature to explore the HCPs' understanding of seizure clusters. Major themes were revealed in one or both groups, including: communication about diagnosis; frequency, duration, and time frame; seizure type and pattern; severity; and self-management. When comparing discussions of professionals and consumers, both consumers and clinicians discussed the definition of seizure clusters. Discussions of HCPs were understandably clinically focused, and consumer discussions reflected the experience of seizure clusters; however, both groups struggled with a common lexicon. Seizure cluster events remain a problem associated with serious outcomes. Herein, we outline the lack of a common understanding and recommend the development of a common lexicon to improve communication regarding seizure clusters. [ABSTRACT FROM AUTHOR]

Communication routes are an important subject in the study of the human past. They allowed interactions between communities and the dispersal of goods and ideas. Their study, therefore, can shed light on the way in which communities inhabited the landscape, related to each other and were affected by macro-regional trends. Many methods, such as archaeomorphological analysis and Least Cost Route modelling (LCR), have been devised and are routinely employed for the reconstruction of ancient routes. Their analysis in terms of communication, trade or historical significance, however, has usually been left unexplored. This is probably due to the connected nature of routes, which form communication networks: these are shaped by interconnected nodes and extend over territories surpassing the regional scale in such a way that even a change in a single node or link can affect the whole network. Consequently, the partial reconstruction of communication networks provided by the aforementioned methods does not usually allow a holistic analysis. In this paper the relatively well understood British Roman road network is employed to explore the analytical possibilities offered by a combination of Social Network Analysis, Spatial Network Analysis and spatial interpolation-based distribution analysis. The British road network has been reconstructed using published data but also a variation of LCR in which cost surfaces are derived from cultural data obtained from large-scale cultural inventories. The distribution of introduced food plants during the Roman period serve as an excellent proxy for the study of trade along the network and its historical consequences. This multi-period archaeobotanical dataset has some evident advantages to other types of material remains: archaeobotanical remains are not reused as, for example, amphorae and, accordingly, they reflect a distribution pattern based on consumption or commerce. Some of them are imported (as they cannot be produced locally) and, consequently, their distribution would be applied through usage of the main routes. The results suggest a continuous inflow of exotics but highlight their changing transport routes, their differential access and the particular weight of certain nodal sites in the development of this commerce with direct impact on urbanisation and the overall economy of Britannia. The Roman road network acted as a major factor in the distribution of sites, their political and economic importance and their permanence or disappearance as global economic trends changed over time. [ABSTRACT FROM AUTHOR]

This paper considers communication in terms of inference about the behaviour of others (and our own behaviour). It is based on the premise that our sensations are largely generated by other agents like ourselves. This means, we are trying to infer how our sensations are caused by others, while they are trying to infer our behaviour: for example, in the dialogue between two speakers. We suggest that the infinite regress induced by modelling another agent – who is modelling you – can be finessed if you both possess the same model. In other words, the sensations caused by others and oneself are generated by the same process. This leads to a view of communication based upon a narrative that is shared by agents who are exchanging sensory signals. Crucially, this narrative transcends agency – and simply involves intermittently attending to and attenuating sensory input. Attending to sensations enables the shared narrative to predict the sensations generated by another (i.e. to listen), while attenuating sensory input enables one to articulate the narrative (i.e. to speak). This produces a reciprocal exchange of sensory signals that, formally, induces a generalised synchrony between internal (neuronal) brain states generating predictions in both agents. We develop the arguments behind this perspective, using an active (Bayesian) inference framework and offer some simulations (of birdsong) as proof of principle. [ABSTRACT FROM AUTHOR]

This paper investigates the communication of canned foods in Flanders between 1945 and 1960. It forwards the antinomy between convenience and care as theoretical framework, it uses three women's magazines as source material, and it subjects this material to the technique of close reading. The results show that the discursive construction of canned foods differs according to the ideology of the magazines. Whereas the agrarian periodical discarded canned foods as careless convenience that menaced the idea of the good housewife, the socialist and the commercial publications undeniably accepted them as caring convenience that could facilitate the household chores of working women. The analysis, thus, deals with the ideological aspect of convenience food, an aspect that has only rarely been examined. [ABSTRACT FROM AUTHOR]

In childhood chronic illness, family communication can impact the child's and parents' psychosocial well-being. However, little is known about family communication in the context of epilepsy in childhood. The aim of this systematic review was to identify the existing evidence available on communication strategies adopted by families living with childhood epilepsy, including; the facilitators, barriers and challenges experienced by families when choosing to communicate, or not, about epilepsy; and the consequences of this communication. Papers published in the English language prior to March 2015 were identified following a search of six electronic databases: PubMed, MEDLINE, Web of Science, PsycINFO, CINAHL, and Scopus. Studies were included if they involved a sample of parents of children with epilepsy or children/young people with epilepsy (0–18 years of age) and used qualitative, quantitative, or mixed methods. Following a comprehensive search and screening process, 26 studies were identified as eligible for inclusion in the review. No studies identified specific communication strategies adopted by families living with childhood epilepsy. Some studies found that talking about epilepsy with family members had positive consequences (e.g., communication as an effective coping strategy), with no negative consequences reported in any of the studies. The main barrier to communication for parents was an unwillingness to use the word “epilepsy” because of the perceived negative social connotations associated with the health condition. For children with epilepsy, barriers were as follows: parental desire to keep epilepsy a secret, parents' tendency to deny that the child had epilepsy, parental overprotection, and parents' tendency to impose greater restrictions on the child with epilepsy than on siblings without epilepsy. Future research investigating the communication strategies of families living with epilepsy is needed in order to create effective communication-based interventions for discussing epilepsy within the home. [ABSTRACT FROM AUTHOR]

Advances in knowledge about breast cancer risk factors have led to the development of more comprehensive risk models. These integrate information on a variety of risk factors such as lifestyle, genetics, family history, and breast density. These risk models have the potential to deliver more personalised breast cancer prevention. This is through improving accuracy of risk estimates, enabling more effective targeting of preventive options and creating novel prevention pathways through enabling risk estimation in a wider variety of populations than currently possible. The systematic use of risk tools as part of population screening programmes is one such example. A clear understanding of how such tools can contribute to the goal of personalised prevention can aid in understanding and addressing barriers to implementation. In this paper we describe how emerging models, and their associated tools can contribute to the goal of personalised healthcare for breast cancer through health promotion, early disease detection (screening) and improved management of women at higher risk of disease. We outline how addressing specific challenges on the level of communication, evidence, evaluation, regulation, and acceptance, can facilitate implementation and uptake. [ABSTRACT FROM AUTHOR]

The abundance of communication technology, such as the omnipresence of cell phones, has not only increased our ability to reach people anytime anywhere, but also the likelihood of being interrupted. As a result, there is value in understanding how to design technology so that gains are realized from desired interruptions, while the losses from unwanted interruptions are minimized. This paper presents the findings of two complementary field studies, one quantitative and the other qualitative, exploring how the provision of additional incoming cell phone call information impacts people׳s interruption decision making. These studies were enabled by, Telling Calls , a research application built to enable users to provide and receive information such as what the call is about and the caller׳s circumstances. The qualitative study showed how the additional call information helps people make informed call handling decisions and acts as an aid to effective conversation. The quantitative study elucidated these findings and showed that reducing the uncertainty about the nature of an incoming call improves people׳s ability to predict the value of an interruption. By combining these diverse research approaches: (1) theory instantiation through tool building; (2) context-aware surveys; and (3) semi-structured interviews, we were able to gain unique insights into the nature of interruption management in the wild, and related design implications. [ABSTRACT FROM AUTHOR]

This paper experimentally investigates how economic principles affect communication. In a simple sender–receiver game with common interests over payoffs, the sender can send a signal without a pre-given meaning in an infrequent or frequent state of the world. When the signal is costly, several theories (focal point theory, the intuitive criterion, evolutionary game theory) predict an efficient separating equilibrium, where the signal is sent in the infrequent state of the world (also referred to as Horn׳s rule). To analyze whether Horn׳s rule applies, and if so, which theory best explains it, we develop and test variants of the sender–receiver game where the theories generate discriminatory hypotheses. In costly signaling variants, our participants follow Horn׳s rule most of the time, in a manner that is best explained by focal point theory. In costless signaling variants, evolutionary game theory best explains our results. Here participants coordinate significantly more (less) often on a separating equilibrium where the signal is sent in the frequent state if they are primed to associate the absence of a signal with the infrequent (frequent) state of the world. We also find indications that a similar priming effect applies to costly signals. Thus, while the frequency with which participants follow Horn׳s rule in costly signaling variants is best explained by Horn׳s rule, the priming effect shows that some of our participants׳ behavior is best explained by evolutionary game theory even when signals are costly. [ABSTRACT FROM AUTHOR]

Background Because of established attending-patient and family relationships and time constraints, residents are often excluded from the immediate postoperative conversation with family. Interpersonal and communication skills are a core competency, and the postoperative conversation is an opportunity to develop these skills. Our objective is to assess attitudes, experience, and comfort regarding resident participation during postoperative conversations with families. Materials and methods Residents and attending surgeons in an academic surgery center were surveyed regarding resident involvement in the postoperative conversation with families. Paper surveys were administered anonymously. Nonparametric statistics compared responses. Results There were 45 survey respondents (23 residents, 22 attendings). All residents rated postoperative conversations with families, as "important" or "very important". Residents reported being "comfortable" or "very comfortable" with postoperative conversations. However, on average, residents reported fewer than 10 postoperative conversation experiences per year. Feedback was received by <30% on postoperative communication skills, but 88% wanted feedback. Most attendings reported it is "important" or "very important" for residents to communicate well with families during postoperative conversations, but rated residents' performance as significantly lower than the residents' self-assessments (P < 0.001). Attendings on average were only "somewhat comfortable" or "moderately comfortable" with residents conducting postoperative conversations with families, and only 68% reported allowing residents to do so. When bad news was involved, only 27% allowed resident participation. Most attendings (86%) believed residents need more opportunities with postoperative conversations. Conclusions Although most residents reported being comfortable with postoperative conversations, these survey results indicate that they have few opportunities. Developing a workshop on communication skills focused on the postoperative conversations with families may be beneficial. [ABSTRACT FROM AUTHOR]

Abstract: Trust has been identified as a critical relationship component in contexts of high uncertainty and complexity such as wildfire management, and as a primary factor in public support for wildland fire management strategies. However, little attention has been paid to identifying and comparing factors across fire management stages (i.e. before, during, after a fire) that may influence trust between community members and fire management agencies. This paper attempts to address this gap by exploring factors affecting community-agency trusting relationships before, during and after a wildfire event. We draw upon 26 semi-structured interviews with 38 residents of a community directly impacted by fires in December 2006 and January 2007 in Victoria, Australia. Communication, cooperation, trustworthiness, and integration of local concerns and knowledge influenced trust in more than one fire management stage. Institutional structures and reduction of uncertainty were particularly strong influences during a fire. After a fire, resolving negative outcomes and immediately meeting perceived needs arising from the fire were factors unique to this stage. [Copyright &y& Elsevier]

The digital epilepsy self-monitor (EpSMon) app was developed to address the challenge of improving risk education and management in the UK. The tool, which has emerged out of quality improvement methodology, demonstrates efficacy and has been met with peer-reviewed support and international awards. The focus of this paper is about the development and integration into care of a digital self-assessment epilepsy risk empowerment tool into the UK health system. This paper provides detail into the specific challenges of incorporating a digital epilepsy intervention into routine clinical practice. Despite a strong narrative and evidence, the engagement of commissioners, clinicians, and people with epilepsy is slow. A breakdown of the strategies used, the current governance landscape, and emerging opportunities to develop an informed implementation strategy is provided to support others who seek to create impact with digital solutions for people with epilepsy. This paper is for the Special Issue: Prevent 21: SUDEP Summit - Time to Listen". • People with epilepsy (PWE) are at significant risk of premature mortality. • Physical, mental, & social changes can raise risk of premature mortality in PWE. • People with epilepsy need to be given opportunities to self-monitor and be aware of risk change. • The epilepsy self-monitor (EpSMon), a digital app, was created to facilitate this. • The development, implementation, and validity studies for EpSMon are presented. [ABSTRACT FROM AUTHOR]

Abstract: This paper constructs the equilibrium for a specific code that can be seen as a “universal grammar” in a class of common interest Sender–Receiver games where players communicate through a noisy channel. We propose a Senderʼs signaling strategy which does not depend on either the game payoffs or the initial probability distribution. The Receiverʼs strategy partitions the set of possible sequences into subsets, with a single action assignment to each of them. The Senderʼs signaling strategy is a Nash equilibrium, i.e. when the Receiver responds best to the Senderʼs strategy, the Sender has no incentive to deviate. An example shows that a tie-breaking decoding is crucial for the block-coding strategy to be an equilibrium. Efficiency is analyzed by comparing how close ex-ante expected payoffs are to those of noiseless communication. Moreover, we study how long communication should be to achieve a given payoff-approximation. [Copyright &y& Elsevier]

Abstract: This paper shows that the efficiency bound for communication equilibria identified by in the leading example of the Crawford–Sobel model can be obtained with strategy-correlated equilibria, thus preserving privacy vis-à-vis the mediator. More generally, all equilibrium outcomes of the ϵ-noise model of , including outcomes with an uncountable infinity of equilibrium actions, can be obtained via strategy-correlated equilibria of the noise-free game. The occasional mismatch between the encoding and decoding rules used by sender and receiver in a strategy-correlated equilibrium can be interpreted as uncertainty about language use. [Copyright &y& Elsevier]

Abstract: This paper studies extensive form games with public information where all players have the same information at each point in time. We prove that when there are at least three players, all communication equilibrium payoffs can be obtained by unmediated cheap-talk procedures. The result encompasses repeated games and stochastic games. [Copyright &y& Elsevier]

Abstract: In this paper, the acoustic-perceptual effects of air sacs are investigated. Using an adaptive hearing experiment, it is shown that air sacs reduce the perceptual effect of vowel-like articulations. Air sacs are a feature of the vocal tract of all great apes, except humans. Because the presence or absence of air sacs is correlated with the anatomy of the hyoid bone, a probable minimum and maximum date of the loss of air sacs can be estimated from fossil hyoid bones. Australopithecus afarensis still had air sacs about 3.3 Ma, while Homo heidelbergensis, some 600 000 years ago and Homo neandethalensis some 60 000 years ago, did no longer. The reduced distinctiveness of articulations produced with an air sac is in line with the hypothesis that air sacs were selected against because of the evolution of complex vocal communication. This relation between complex vocal communication and fossil evidence may help to get a firmer estimate of when speech first evolved. [Copyright &y& Elsevier]

Abstract: In this paper we present Turk-2, a hybrid multi-modal chess player with a robot arm and a screen-based talking head. Turk-2 can not only play chess, but can see and hear the opponent, can talk to him and display emotions. We were interested to find out if a simple embodiment with human-like communication capabilities enhances the experience of playing chess against a computer. First, give an overview of the development road to multi-modal communication with computers. Then we motivate our research with a hybrid system, we introduce the architecture of Turk-2, we describe the human experiments and its evaluation. The results justify that multi-modal interaction makes game playing more engaging, enjoyable – and even more effective. These findings for a specific game situation provide yet another evidence of the power of human-like interaction in turning computer systems more attractive and easier to use. [Copyright &y& Elsevier]