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14 results on '"Rautiainen, Juha"'

1. Optical character recognition quality affects perceived usefulness of historical newspaper clippings

Author

Kettunen, Kimmo, Keskustalo, Heikki, Kumpulainen, Sanna, Pääkkönen, Tuula, and Rautiainen, Juha

Subjects
Computer Science - Computation and Language
Abstract

Introduction. We study effect of different quality optical character recognition in interactive information retrieval with a collection of one digitized historical Finnish newspaper. Method. This study is based on the simulated interactive information retrieval work task model. Thirty-two users made searches to an article collection of Finnish newspaper Uusi Suometar 1869-1918 with ca. 1.45 million auto segmented articles. Our article search database had two versions of each article with different quality optical character recognition. Each user performed six pre-formulated and six self-formulated short queries and evaluated subjectively the top-10 results using graded relevance scale of 0-3 without knowing about the optical character recognition quality differences of the otherwise identical articles. Analysis. Analysis of the user evaluations was performed by comparing mean averages of evaluations scores in user sessions. Differences of query results were detected by analysing lengths of returned articles in pre-formulated and self-formulated queries and number of different documents retrieved overall in these two sessions. Results. The main result of the study is that improved optical character recognition quality affects perceived usefulness of historical newspaper articles positively. Conclusions. We were able to show that improvement in optical character recognition quality of documents leads to higher mean relevance evaluation scores of query results in our historical newspaper collection. To the best of our knowledge this simulated interactive user-task is the first one showing empirically that users' subjective relevance assessments are affected by a change in the quality of optically read text., Comment: 21 pages, 6 figures, 2 tables, 1 appendix. arXiv admin note: substantial text overlap with arXiv:2203.03557

Published
2022

2. OCR quality affects perceived usefulness of historical newspaper clippings -- a user study

Author

Kettunen, Kimmo, Keskustalo, Heikki, Kumpulainen, Sanna, Pääkkönen, Tuula, and Rautiainen, Juha

Subjects
Computer Science - Information Retrieval, Computer Science - Computation and Language, Computer Science - Digital Libraries
Abstract

Effects of Optical Character Recognition (OCR) quality on historical information retrieval have so far been studied in data-oriented scenarios regarding the effectiveness of retrieval results. Such studies have either focused on the effects of artificially degraded OCR quality (see, e.g., [1-2]) or utilized test collections containing texts based on authentic low quality OCR data (see, e.g., [3]). In this paper the effects of OCR quality are studied in a user-oriented information retrieval setting. Thirty-two users evaluated subjectively query results of six topics each (out of 30 topics) based on pre-formulated queries using a simulated work task setting. To the best of our knowledge our simulated work task experiment is the first one showing empirically that users' subjective relevance assessments of retrieved documents are affected by a change in the quality of optically read text. Users of historical newspaper collections have so far commented effects of OCR'ed data quality mainly in impressionistic ways, and controlled user environments for studying effects of OCR quality on users' relevance assessments of the retrieval results have so far been missing. To remedy this The National Library of Finland (NLF) set up an experimental query environment for the contents of one Finnish historical newspaper, Uusi Suometar 1869-1918, to be able to compare users' evaluation of search results of two different OCR qualities for digitized newspaper articles. The query interface was able to present the same underlying document for the user based on two alternatives: either based on the lower OCR quality, or based on the higher OCR quality, and the choice was randomized. The users did not know about quality differences in the article texts they evaluated. The main result of the study is that improved optical character recognition quality affects perceived usefulness of historical newspaper articles significantly. The mean average evaluation score for the improved OCR results was 7.94% higher than the mean average evaluation score of the old OCR results., Comment: IRCDL2022

Published
2022

7. Integrated interdisciplinary workflows for research on historical newspapers: Perspectives from humanitiesscholars, computer scientists, and librarians

Author

Oberbichler, Sarah, Boros, Emanuela, Doucet, Antoine, Marjanen, Jani, Pfanzelter, Eva, Rautiainen, Juha, Toivonen, Hannu, and Tolonen, Mikko

Abstract

In this paper, we use the concept of workflow to discuss integrated interdisciplinary collaboration. We argue that interdisciplinary teams can benefit from an understanding of the workflows and traditions of each of the disciplines involved and provide a schematic synthesis of typical workflow viewpoints of the disciplines, highlighting their similarities and differences. Integrated approaches are needed to successfully exploit the full potential of digitized sources. Therefore, we elaborate on research steps and tasks where all fields come together and eventually propose an integrated digital hermeneutics workflow for research work on digital cultural heritage.

Published
2021

9. Integrated interdisciplinary workflows for research on historical newspapers: Perspectives from humanities scholars, computer scientists, and librarians.

Author

Oberbichler, Sarah, Boroş, Emanuela, Doucet, Antoine, Marjanen, Jani, Pfanzelter, Eva, Rautiainen, Juha, Toivonen, Hannu, and Tolonen, Mikko

Subjects
OCCUPATIONAL roles, INTERDISCIPLINARY research, MOTIVATION (Psychology), DIGITAL technology, INFORMATION resources management, LANGUAGE & languages, WORKFLOW, PHENOMENOLOGY, NEWSPAPERS, INFORMATION science, INTERPROFESSIONAL relations, ACCESS to information, INFORMATION retrieval, HUMANITIES, LIBRARIANS, DATA analysis
Abstract

This article considers the interdisciplinary opportunities and challenges of working with digital cultural heritage, such as digitized historical newspapers, and proposes an integrated digital hermeneutics workflow to combine purely disciplinary research approaches from computer science, humanities, and library work. Common interests and motivations of the above‐mentioned disciplines have resulted in interdisciplinary projects and collaborations such as the NewsEye project, which is working on novel solutions on how digital heritage data is (re)searched, accessed, used, and analyzed. We argue that collaborations of different disciplines can benefit from a good understanding of the workflows and traditions of each of the disciplines involved but must find integrated approaches to successfully exploit the full potential of digitized sources. The paper is furthermore providing an insight into digital tools, methods, and hermeneutics in action, showing that integrated interdisciplinary research needs to build something in between the disciplines while respecting and understanding each other's expertise and expectations. [ABSTRACT FROM AUTHOR]

Published
2022
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10. Musiikkimaun laajentamista tukeva musiikkikasvatus : voiko lukioikäisten musiikilliseen preferenssiin vaikuttaa ennalta annetulla informaatiolla?

Author

Rautiainen, Juha-Matti

Subjects
musiikkikasvatus, musiikillinen preferenssi, musiikkisuhde, musiikkimaku
Abstract

Maisterintutkielmassani tutkin mahdollisuutta vaikuttaa etukäteen annetulla informaatiolla Kaustisen musiikkilukion opiskelijoiden musiikilliseen preferenssiin. Kiinnostuksen kohteena oli myös musiikkilinjalla sekä yleislinjalla opiskelevien opiskelijoiden välinen ero preferensseissä. Tutkimukseni liittyy laajempaan keskusteluun musiikinopetuksen mahdollisuuksista edistää oppilaiden musiikkisuhdetta ja monipuolista musiikkimakua. Tutkimus oli luonteeltaan musiikin kuuntelutehtävää ja strukturoitua kyselyä hyödyntävä kvantitatiivinen tutkimus. Opiskelijoille soitettiin kolme musiikkinäytettä, joita opiskelijat arvioivat mielekkyyden sekä tunnevaikutusten kannalta. Opiskelijat jaettiin kolmeen ryhmään, joista ensimmäinen ryhmä ei saanut mitään informaatiota kuunnelluista näytteistä, toinen ryhmä sai etukäteen sanallisesti esitettynä musiikillista informaatiota kappaleiden sisällöstä ja kolmas ryhmä sai kuulla kappaleiden taustaan liittyviä tunteisiin vetoavia anekdootteja. Tulokset analysoitiin tilastollisia menetelmiä käyttäen SPSS-ohjelmalla. Vastoin hypoteesia ryhmien väliset preferensseihin liittyvät vastaukset eivät eronneet tilastollisesti toisistaan, jonka vuoksi voidaan todeta, ettei etukäteen annetulla informaatiolla ollut merkitystä Kaustisen musiikkilukion opiskelijoiden musiikilliseen preferenssiin. Sen sijaan voidaan yksiselitteisesti todeta, että musiikkilinjalaisten arviot olivat tilastollisesti huomattavasti yleislinjalaisten arvioita myönteisempiä. Tutkimukseni perusteella vaikuttaisi siltä, että teini-ikäisten musiikilliseen preferenssiin on vaikeaa vaikuttaa etukäteen annetulla informaatiolla. Tämän vuoksi laajaan musiikkimakuun tähtäävä toiminta olisi aloitettava varhaisiässä. Tätä puoltaa myös musiikkilinjalaisten selkeästi yleislinjalaisia myönteisemmät arviot näytteistä. Jatkossa olisi myös syytä selvittää, onko laajasta musiikkimausta mahdollisia psykososiaalisia hyötyjä, jotka perustelisivat musiikkimaun laajentamiseen tähtäävää toimintaa musiikkikasvatuksessa.

Published
2018

11. Palveluyrityksen kilpailuedun luonti kilpailuanalyysin pohjalta

Author

RAUTIAINEN, JUHA, Johtamistieteiden laitos - Department of Management Studies, Kauppa- ja hallintotieteiden tiedekunta - Faculty of Economics and Administration, and University of Tampere

Subjects
Yrityksen hallinto - Management and Organisation
Published
2008

12. Open, Extended, Closed or Hidden Data of Cultural Heritage

Author

Tuula Pääkkönen, Rautiainen Juha, Toni Ryynänen, Eeva Katariina Uusitalo, The National Library of Finland, Research Library, Ruralia Institute, Mikkeli, Helsinki Institute of Sustainability Science (HELSUS), and Human in Digital and Sustainable Economies

Subjects
6160 Other humanities, education

13. Datapaketit ja rajapinnat tutkijoiden työkaluna Kansalliskirjastossa: mahdollisuudet ja rajoitteet.

Author

Liukkonen, Erno, Näpärä, Liisa, Pääkkönen, Tuula, and Rautiainen, Juha

Abstract

In this article, we study the possibilities of the data packages and interfaces of the National Library of Finland in the context of researcher use and comparing with other libraries and their solutions. The researchers' needs towards digital materials are various depending on the research field, usage purpose and the technical background each individual has. The researchers approach the digital materials from the viewpoint of their research needs, e.g. via source literature and materials. The National Library offers material and data from collections of the library, which have been digitized and converted to data packages based on the needs of the library and the researchers. The data packages and interfaces can be used e.g. in digital humanities, where one of the goals is to develop new methods and techniques. Presently the data packages and interfaces are, however, underused and seem hard to approach. Both the skills of the researchers, attitudes and understanding about interfaces and problems with interfaces limit their use. For example, the level of documentation, examples provided and visibility to the documentation on websites are not responding to the expectations of the researchers. In different libraries, the aim is to create tools, which aim to instruct and ease the use of the interfaces. [ABSTRACT FROM AUTHOR]

Published
2021
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14. The Geometry and Nature of C─I···O─N Interactions in Perfluoroiodobenzene-Pyridine N-oxide Halogen-Bonded Complexes.

Author

Rautiainen JM, Valkonen A, Lundell J, Rissanen K, and Puttreddy R

Abstract

The N─Oxide oxygen in the 111 C─I···⁻O─N + halogen bond (XB) complexes, formed by five perfluoroiodobenzene XB donors and 32 pyridine N-oxides (PyNO) XB acceptors, exhibits three XB modes: bidentate, tridentate, and monodentate. Their C─I···O XB angles range from 148° to 180°, reflecting the iodine σ-hole's structure-guiding influence. The I···⁻O─N + angles range from 87° to 152°. On the contrary, the I···⁻O─N + angles have a narrower range from 107° to 125° in stronger monodentate N─I···⁻O─N + XBs of N-iodoimides and PyNOs. The C─I···⁻O─N + systems exhibit a larger variation in I···⁻O─N + angles due to weaker XB donor perfluoroiodoaromatics forming weak I···O XBs, which allows wider access to electron-rich N-O group regions. Density Functional Theory analysis shows that I···O interactions are attractive even when the I···⁻O─N + angle is ≈80°. Correlation analysis of structural parameters showed that weak I···O XBs in perfluoroiodobenzene-PyNO complexes affect the C─I bond via n(O)→σ*(C─I) donation less than the N─I bond via n(O)→σ*(N─I) donation in very strong I···O XBs of N-iodoimide-PyNO complexes. This implies that PyNOs' oxygen self-tunes its XB acceptor property, dependent on the XB donor σ-hole strength affecting the bonding denticity, geometry, and interaction energies., (© 2024 The Author(s). Advanced Science published by Wiley‐VCH GmbH.)

Published
2024
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