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275 results on '"Jovanovic, Milos"'

3. Automatic Control of Recirculation System for Respiratory Control

Author

Jovanović, Miloš, Dihovicni, Djordje, Aksoy, Muharrem Hilmi, Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Blažević, Damir, editor, Ademović, Naida, editor, Barić, Tomislav, editor, Cumin, Josip, editor, and Desnica, Eleonora, editor

Published
2023
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4. FAIR: Fair Adversarial Instance Re-weighting

Author

Petrović, Andrija, Nikolić, Mladen, Radovanović, Sandro, Delibašić, Boris, and Jovanović, Miloš

Subjects
Computer Science - Machine Learning, Computer Science - Artificial Intelligence, Statistics - Machine Learning
Abstract

With growing awareness of societal impact of artificial intelligence, fairness has become an important aspect of machine learning algorithms. The issue is that human biases towards certain groups of population, defined by sensitive features like race and gender, are introduced to the training data through data collection and labeling. Two important directions of fairness ensuring research have focused on (i) instance weighting in order to decrease the impact of more biased instances and (ii) adversarial training in order to construct data representations informative of the target variable, but uninformative of the sensitive attributes. In this paper we propose a Fair Adversarial Instance Re-weighting (FAIR) method, which uses adversarial training to learn instance weighting function that ensures fair predictions. Merging the two paradigms, it inherits desirable properties from both -- interpretability of reweighting and end-to-end trainability of adversarial training. We propose four different variants of the method and, among other things, demonstrate how the method can be cast in a fully probabilistic framework. Additionally, theoretical analysis of FAIR models' properties have been studied extensively. We compare FAIR models to 7 other related and state-of-the-art models and demonstrate that FAIR is able to achieve a better trade-off between accuracy and unfairness. To the best of our knowledge, this is the first model that merges reweighting and adversarial approaches by means of a weighting function that can provide interpretable information about fairness of individual instances.

Published
2020

5. Gaussian Conditional Random Fields for Classification

Author

Petrović, Andrija, Nikolić, Mladen, Jovanović, Miloš, and Delibašić, Boris

Subjects
Computer Science - Machine Learning, Computer Science - Artificial Intelligence, Statistics - Machine Learning
Abstract

Gaussian conditional random fields (GCRF) are a well-known used structured model for continuous outputs that uses multiple unstructured predictors to form its features and at the same time exploits dependence structure among outputs, which is provided by a similarity measure. In this paper, a Gaussian conditional random fields model for structured binary classification (GCRFBC) is proposed. The model is applicable to classification problems with undirected graphs, intractable for standard classification CRFs. The model representation of GCRFBC is extended by latent variables which yield some appealing properties. Thanks to the GCRF latent structure, the model becomes tractable, efficient and open to improvements previously applied to GCRF regression models. In addition, the model allows for reduction of noise, that might appear if structures were defined directly between discrete outputs. Additionally, two different forms of the algorithm are presented: GCRFBCb (GCRGBC - Bayesian) and GCRFBCnb (GCRFBC - non Bayesian). The extended method of local variational approximation of sigmoid function is used for solving empirical Bayes in Bayesian GCRFBCb variant, whereas MAP value of latent variables is the basis for learning and inference in the GCRFBCnb variant. The inference in GCRFBCb is solved by Newton-Cotes formulas for one-dimensional integration. Both models are evaluated on synthetic data and real-world data. It was shown that both models achieve better prediction performance than unstructured predictors. Furthermore, computational and memory complexity is evaluated. Advantages and disadvantages of the proposed GCRFBCb and GCRFBCnb are discussed in detail., Comment: Draft paper without experimental evaluation

Published
2019

10. Semi-supervised learning for structured regression on partially observed attributed graphs

Author

Stojanovic, Jelena, Jovanovic, Milos, Gligorijevic, Djordje, and Obradovic, Zoran

Subjects
Computer Science - Learning, Statistics - Machine Learning
Abstract

Conditional probabilistic graphical models provide a powerful framework for structured regression in spatio-temporal datasets with complex correlation patterns. However, in real-life applications a large fraction of observations is often missing, which can severely limit the representational power of these models. In this paper we propose a Marginalized Gaussian Conditional Random Fields (m-GCRF) structured regression model for dealing with missing labels in partially observed temporal attributed graphs. This method is aimed at learning with both labeled and unlabeled parts and effectively predicting future values in a graph. The method is even capable of learning from nodes for which the response variable is never observed in history, which poses problems for many state-of-the-art models that can handle missing data. The proposed model is characterized for various missingness mechanisms on 500 synthetic graphs. The benefits of the new method are also demonstrated on a challenging application for predicting precipitation based on partial observations of climate variables in a temporal graph that spans the entire continental US. We also show that the method can be useful for optimizing the costs of data collection in climate applications via active reduction of the number of weather stations to consider. In experiments on these real-world and synthetic datasets we show that the proposed model is consistently more accurate than alternative semi-supervised structured models, as well as models that either use imputation to deal with missing values or simply ignore them altogether., Comment: Proceedings of the 2015 SIAM International Conference on Data Mining (SDM 2015) Vancouver, Canada, April 30 - May 02, 2015

Published
2018

12. Cloud-Enabled Bi-manual Collaborative Robot with Enhanced Versatility for Customized Production

Author

Rodić, Aleksandar, Šumarac, Jovan, Stevanović, Ilija, Jovanović, Miloš, Ceccarelli, Marco, Series Editor, Agrawal, Sunil K., Advisory Editor, Corves, Burkhard, Advisory Editor, Glazunov, Victor, Advisory Editor, Hernández, Alfonso, Advisory Editor, Huang, Tian, Advisory Editor, Jauregui Correa, Juan Carlos, Advisory Editor, Takeda, Yukio, Advisory Editor, Zeghloul, Saïd, editor, Laribi, Med Amine, editor, and Sandoval, Juan, editor

Published
2021
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19. Mechanical Design, Modeling and Simulation of Human-Size Cable-Driven Over-Actuated Robotic Arm

Author

Rodić, Aleksandar, Hioki, Shunsuke, Radmilović, Marija, Jovanović, Miloš, Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, Berns, Karsten, editor, and Görges, Daniel, editor

Published
2020
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20. Synthesis of hydantoins from N-Boc protected amino acid derived amides using polymer-supported PPh3/CBr4 as a reagent.

Author

Tasic, Gordana, Mitrovic, Nikola, Simic, Milena, Koravovic, Mladen, Jovanovic, Predrag, Petkovic, Milos, Jovanovic, Milos, Ivkovic, Branka, and Savic, Vladimir

Subjects
AMINO acid amides, HYDANTOIN, AMIDES, ORGANIC chemistry, PHARMACEUTICAL chemistry, NATURAL products
Abstract

Hydantoin derivatives are versatile structural motifs found in natural products and various compounds with different biological or other properties. Due to their importance in both organic and medicinal chemistry, a number of synthetic procedures have been developed. In this article, a novel methodology utilizing N-Boc protected amino acid amides for their preparation has been described. The cyclisation process was accomplished using solid supported PPh3 and CBr4 as reagents affording substituted hydantoins in moderate to good yields (40%–77%). [ABSTRACT FROM AUTHOR]

Published
2024
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21. Smart Cyber-Physical System to Enhance Flexibility of Production and Improve Collaborative Robot Capabilities – Mechanical Design and Control Concept

Author

Rodić, Aleksandar, Stevanović, Ilija, Jovanović, Miloš, Ceccarelli, Marco, Series Editor, Hernandez, Alfonso, Editorial Board Member, Huang, Tian, Editorial Board Member, Velinsky, Steven A., Editorial Board Member, Takeda, Yukio, Editorial Board Member, Corves, Burkhard, Editorial Board Member, Aspragathos, Nikos A., editor, Koustoumpardis, Panagiotis N., editor, and Moulianitis, Vassilis C., editor

Published
2019
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25. Synthesis of Piperazin-2-one Derivatives via Cascade Double Nucleophilic Substitution.

Author

Petkovic, Milos, Kusljevic, Dušica, Jovanovic, Milos, Jovanovic, Predrag, Tasic, Gordana, Simic, Milena, and Savic, Vladimir

Subjects
BIOACTIVE compounds, ALKYL chlorides, CONJUGATED systems, NORMAL-phase chromatography, BUTYRATES
Abstract

This article discusses the synthesis and characterization of several compounds, including piperazinone derivatives. The compounds are described in terms of their chemical structures, physical properties, and spectroscopic data. The authors provide detailed information about the synthesis procedure, yield, and characterization techniques used. This information can be useful for researchers studying these specific compounds or related topics. The authors acknowledge the University of Belgrade, Faculty of Pharmacy for their support, and additional supporting information is available online. [Extracted from the article]

Published
2024
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27. An Investigation of Human Trajectories in Ski Resorts

Author

Delibašić, Boris, Radovanović, Sandro, Jovanović, Miloš, Vukićević, Milan, Suknović, Milija, Diniz Junqueira Barbosa, Simone, Series editor, Chen, Phoebe, Series editor, Filipe, Joaquim, Series editor, Kotenko, Igor, Series editor, Sivalingam, Krishna M., Series editor, Washio, Takashi, Series editor, Yuan, Junsong, Series editor, Zhou, Lizhu, Series editor, Trajanov, Dimitar, editor, and Bakeva, Verica, editor

Published
2017
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28. Towards the Development of a Sequential Framework for Agile Adoption

Author

Jovanović, Miloš, Mesquida, Antoni-Lluís, Mas, Antònia, Lalić, Bojan, Diniz Junqueira Barbosa, Simone, Series editor, Chen, Phoebe, Series editor, Filipe, Joaquim, Series editor, Kotenko, Igor, Series editor, Sivalingam, Krishna M., Series editor, Washio, Takashi, Series editor, Yuan, Junsong, Series editor, Zhou, Lizhu, Series editor, Mas, Antonia, editor, Mesquida, Antoni, editor, O'Connor, Rory V., editor, Rout, Terry, editor, and Dorling, Alec, editor

Published
2017
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29. A Game Toolbox for Process Improvement in Agile Teams

Author

Mesquida, Antoni-Lluís, Karać, Jovana, Jovanović, Miloš, Mas, Antònia, Diniz Junqueira Barbosa, Simone, Series editor, Chen, Phoebe, Series editor, Du, Xiaoyong, Series editor, Filipe, Joaquim, Series editor, Kotenko, Igor, Series editor, Liu, Ting, Series editor, Sivalingam, Krishna M., Series editor, Washio, Takashi, Series editor, Stolfa, Jakub, editor, Stolfa, Svatopluk, editor, O'Connor, Rory V., editor, and Messnarz, Richard, editor

Published
2017
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30. Artistic Design of the Customized Robot with Environmental, Social and Cultural Impacts to Human Society

Author

Vicković, Biljana, Popić, Svemir, Jovanović, Miloš D., Rodić, Aleksandar, Kacprzyk, Janusz, Series editor, Pal, Nikhil R., Advisory editor, Bello Perez, Rafael, Advisory editor, Corchado, Emilio S., Advisory editor, Hagras, Hani, Advisory editor, Kóczy, László T., Advisory editor, Kreinovich, Vladik, Advisory editor, Lin, Chin-Teng, Advisory editor, Lu, Jie, Advisory editor, Melin, Patricia, Advisory editor, Nedjah, Nadia, Advisory editor, Nguyen, Ngoc Thanh, Advisory editor, Wang, Jun, Advisory editor, Rodić, Aleksandar, editor, and Borangiu, Theodor, editor

Published
2017
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31. Application-Driven Cloud-Based Control of Smart Multi-robot Store Scenario

Author

Rodić, Aleksandar, Jovanović, Miloš, Vujović, Milica, Urukalo, Djordje, Kacprzyk, Janusz, Series editor, Pal, Nikhil R., Advisory editor, Bello Perez, Rafael, Advisory editor, Corchado, Emilio S., Advisory editor, Hagras, Hani, Advisory editor, Kóczy, László T., Advisory editor, Kreinovich, Vladik, Advisory editor, Lin, Chin-Teng, Advisory editor, Lu, Jie, Advisory editor, Melin, Patricia, Advisory editor, Nedjah, Nadia, Advisory editor, Nguyen, Ngoc Thanh, Advisory editor, Wang, Jun, Advisory editor, Rodić, Aleksandar, editor, and Borangiu, Theodor, editor

Published
2017
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32. Possibilities of Applying Robotic Systems and Smart Sensor Networks in Integrated Agricultural Apple Production

Author

Subić, Jonel, Jovanović, Miloš D., Despotović, Željko, Jeločnik, Marko, Kacprzyk, Janusz, Series editor, Pal, Nikhil R., Advisory editor, Bello Perez, Rafael, Advisory editor, Corchado, Emilio S., Advisory editor, Hagras, Hani, Advisory editor, Kóczy, László T., Advisory editor, Kreinovich, Vladik, Advisory editor, Lin, Chin-Teng, Advisory editor, Lu, Jie, Advisory editor, Melin, Patricia, Advisory editor, Nedjah, Nadia, Advisory editor, Nguyen, Ngoc Thanh, Advisory editor, Wang, Jun, Advisory editor, Rodić, Aleksandar, editor, and Borangiu, Theodor, editor

Published
2017
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34. Process Improving by Playing: Implementing Best Practices through Business Games

Author

Mesquida, Antoni-Lluís, Jovanovic, Milos, Mas, Antònia, Diniz Junqueira Barbosa, Simone, Series editor, Chen, Phoebe, Series editor, Du, Xiaoyong, Series editor, Filipe, Joaquim, Series editor, Kara, Orhun, Series editor, Kotenko, Igor, Series editor, Liu, Ting, Series editor, Sivalingam, Krishna M., Series editor, Washio, Takashi, Series editor, Kreiner, Christian, editor, O'Connor, Rory V., editor, Poth, Alexander, editor, and Messnarz, Richard, editor

Published
2016
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35. Refactoring Software Development Process Terminology Through the Use of Ontology

Author

Clarke, Paul M., Calafat, Antoni Lluís Mesquida, Ekert, Damjan, Ekstrom, J. J., Gornostaja, Tatjana, Jovanovic, Milos, Johansen, Jørn, Mas, Antonia, Messnarz, Richard, Villar, Blanca Nájera, O’Connor, Alexander, O’Connor, Rory V., Reiner, Michael, Sauberer, Gabriele, Schmitz, Klaus-Dirk, Yilmaz, Murat, Diniz Junqueira Barbosa, Simone, Series editor, Chen, Phoebe, Series editor, Du, Xiaoyong, Series editor, Filipe, Joaquim, Series editor, Kara, Orhun, Series editor, Kotenko, Igor, Series editor, Liu, Ting, Series editor, Sivalingam, Krishna M., Series editor, Washio, Takashi, Series editor, Kreiner, Christian, editor, O'Connor, Rory V., editor, Poth, Alexander, editor, and Messnarz, Richard, editor

Published
2016
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36. An Investigation of Software Development Process Terminology

Author

Clarke, Paul, Mesquida, Antoni-Lluís, Ekert, Damjan, Ekstrom, J. J., Gornostaja, Tatjana, Jovanovic, Milos, Johansen, Jørn, Mas, Antonia, Messnarz, Richard, Villar, Blanca Nájera, O’Connor, Alexander, O’Connor, Rory V., Reiner, Michael, Sauberer, Gabriele, Schmitz, Klaus-Dirk, Yilmaz, Murat, Diniz Junqueira Barbosa, Simone, Series editor, Chen, Phoebe, Series editor, Du, Xiaoyong, Series editor, Filipe, Joaquim, Series editor, Kara, Orhun, Series editor, Kotenko, Igor, Series editor, Liu, Ting, Series editor, Sivalingam, Krishna M., Series editor, Washio, Takashi, Series editor, Clarke, Paul M., editor, O'Connor, Rory V., editor, Rout, Terry, editor, and Dorling, Alec, editor

Published
2016
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41. Process Improvement with Retrospective Gaming in Agile Software Development

Author

Jovanovic, Milos, Mesquida, Antoni-Lluís, Mas, Antònia, Diniz Junqueira Barbosa, Simone, Series editor, Chen, Phoebe, Series editor, Du, Xiaoyong, Series editor, Filipe, Joaquim, Series editor, Kara, Orhun, Series editor, Kotenko, Igor, Series editor, Liu, Ting, Series editor, Sivalingam, Krishna M., Series editor, Washio, Takashi, Series editor, O’Connor, Rory V., editor, Umay Akkaya, Mariye, editor, Kemaneci, Kerem, editor, Yilmaz, Murat, editor, Poth, Alexander, editor, and Messnarz, Richard, editor

Published
2015
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