Pertti Vakkari

87 papers A* 1A 1B 6Journal 60Unranked 17

Year	Rank	Type	Title / Venue / Authors
2025	J	`jnl`	Comparing representations of a discipline derived through LDA vs. intellectual content analysis: the case of information science. Scientometrics Kaisa Ylikruuvi, Kalervo Järvelin, Pertti Vakkari, Martti Juhola
2024	J	`jnl`	An exploration of search-as-learning in digital archives of an online museum. J. Documentation I-Chin Wu, Pertti Vakkari, Bo-Xian Huang
2024	J	`jnl`	Characteristics of LIS research articles affecting their citation impact. J. Libr. Inf. Sci. Kalervo Järvelin, Yu-Wei Chang, Pertti Vakkari
2024	J	`jnl`	What characterizes LIS as a fragmenting discipline? J. Documentation Pertti Vakkari
2024	J	`jnl`	Who cites the contributions by information science? J. Documentation Kalervo Järvelin, Pertti Vakkari
2023	J	`jnl`	A Probabilistic Model Toward How People Search to Build Outcomes. IEEE Access Yuli Zhao, Yuyang Bai, Yin Zhang, Bin Zhang, Pertti Vakkari
2023	J	`jnl`	Characteristics of LIS Research Articles Affecting Their Citation Impact. CoRR Kalervo Järvelin, Yu-Wei Chang, Pertti Vakkari
2023	J	`jnl`	The association of disciplinary background with the evolution of topics and methods in Library and Information Science research 1995-2015. J. Assoc. Inf. Sci. Technol. Pertti Vakkari, Kalervo Järvelin, Yu-Wei Chang
2022	J	`jnl`	Disciplinary contributions to research topics and methodology in Library and Information Science - Leading to fragmentation? J. Assoc. Inf. Sci. Technol. Pertti Vakkari, Yu-Wei Chang, Kalervo Järvelin
2022	J	`jnl`	LIS research across 50 years: content analysis of journal articles. J. Documentation Kalervo Järvelin, Pertti Vakkari
2022	J	`jnl`	Largest contribution to LIS by external disciplines as measured by the characteristics of research articles. Scientometrics Pertti Vakkari, Yu-Wei Chang, Kalervo Järvelin
2021	—	`conf`	Learning Outcomes during Information Search in Digital Archives. ASIST I-Chin Wu, Bo-Xian Huang, Pertti Vakkari
2021	J	`jnl`	Predicting essay quality from search and writing behavior. J. Assoc. Inf. Sci. Technol. Pertti Vakkari, Michael Völske, Martin Potthast, Matthias Hagen, Benno Stein
2020	B	`conf`	The Usefulness of Search Results: A Systematization of Types and Predictors. CHIIR Pertti Vakkari
2020	J	`jnl`	The role of readers' literary preferences in predicting success in fiction search. J. Documentation Pertti Vakkari, Anna Mikkonen
2019	J	`jnl`	Adopting situationally relevant modes of music information at different stages of information-seeking processes. J. Documentation Antti Mikael Rousi, Reijo Savolainen, Pertti Vakkari
2019	J	`jnl`	Modeling the usefulness of search results as measured by information use. Inf. Process. Manag. Pertti Vakkari, Michael Völske, Martin Potthast, Matthias Hagen, Benno Stein
2018	J	`jnl`	Effects of subject-oriented visualization tools on search by novices and intermediates. J. Assoc. Inf. Sci. Technol. I-Chin Wu, Pertti Vakkari
2018	B	`conf`	Information Search Processes in Complex Tasks. CHIIR Pertti Vakkari
2018	B	`conf`	Predicting Retrieval Success Based on Information Use for Writing Tasks. TPDL Pertti Vakkari, Michael Völske, Martin Potthast, Matthias Hagen, Benno Stein
2018	J	`jnl`	Situational relevance of music information modes: An empirical investigation among Doctor of Music students. J. Documentation Antti Mikael Rousi, Reijo Savolainen, J. Tuomas Harviainen, Pertti Vakkari
2017	J	`jnl`	Information repertoires: media use patterns in various gratification contexts. J. Documentation Sei-Ching Joanna Sin, Pertti Vakkari
2017	J	`jnl`	Reader characteristics, behavior, and success in fiction book search. J. Assoc. Inf. Sci. Technol. Anna Mikkonen, Pertti Vakkari
2016	J	`jnl`	A typology of music information for studies on information seeking. J. Documentation Antti Mikael Rousi, Reijo Savolainen, Pertti Vakkari
2016	J	`jnl`	Patterns of perceived public library outcomes in five countries. J. Documentation Pertti Vakkari, Svanhild Aabø, Ragnar Audunson, Frank Huysmans, Nahyun Kwon, Marjolein Oomes, Sei-Ching Joanna Sin
2016	B	`ed.`	Proceedings of the 2016 ACM Conference on Human Information Interaction and Retrieval, CHIIR 2016, Carrboro, North Carolina, USA, March 13-17, 2016 CHIIR Diane Kelly, Robert Capra, Nicholas J. Belkin, Jaime Teevan, Pertti Vakkari
2016	J	`jnl`	Readers' interest criteria in fiction book search in library catalogs. J. Documentation Anna Mikkonen, Pertti Vakkari
2016	J	`jnl`	Searching as learning: A systematization based on literature. J. Inf. Sci. Pertti Vakkari
2015	—	`conf`	Books' Interest Grading and Fiction Readers' Search Actions During Query Reformulation Intervals. JCDL Anna Mikkonen, Pertti Vakkari
2015	—	`conf`	Result List Actions in Fiction Search. JCDL Pertti Vakkari, Janna Pöntinen
2015	J	`jnl`	Task-Based Information Interaction Evaluation: The Viewpoint of Program Theory. ACM Trans. Inf. Syst. Kalervo Järvelin, Pertti Vakkari, Paavo Arvola, Feza Baskaya, Anni Järvelin, Jaana Kekäläinen, Heikki Keskustalo, Sanna Kumpulainen, Miamaria Saastamoinen, Reijo Savolainen, Eero Sormunen
2014	—	`conf`	Books' interest grading and dwell time in metadata in selecting fiction. IIiX Pertti Vakkari, Arto Luoma, Janna Pöntinen
2014	J	`jnl`	Evaluation methodologies in information retrieval dagstuhl seminar 13441. SIGIR Forum Maristella Agosti, Norbert Fuhr, Elaine G. Toms, Pertti Vakkari
2014	J	`jnl`	Evolution of library and information science, 1965-2005: Content analysis of journal articles. J. Assoc. Inf. Sci. Technol. Otto Tuomaala, Kalervo Järvelin, Pertti Vakkari
2014	J	`jnl`	Models explaining the perceived outcomes of public libraries. J. Documentation Pertti Vakkari
2014	J	`jnl`	Perceived outcomes of public libraries in Finland, Norway and the Netherlands. J. Documentation Pertti Vakkari, Svanhild Aabø, Ragnar Andreas Audunson, Frank Huysmans, Marjolein Oomes
2014	J	`jnl`	Supporting navigation in Wikipedia by information visualization: extended evaluation measures. J. Documentation I-Chin Wu, Pertti Vakkari
2013	J	`jnl`	"I Did It My Way": Social workers as secondary designers of a client information system. Inf. Process. Manag. Saila Huuskonen, Pertti Vakkari
2013	J	`jnl`	A sign of a good book: readers' methods of accessing fiction in the public library. J. Documentation Katariina Saarinen, Pertti Vakkari
2013	J	`jnl`	Evaluation Methodologies in Information Retrieval (Dagstuhl Seminar 13441). Dagstuhl Reports Maristella Agosti, Norbert Fuhr, Elaine G. Toms, Pertti Vakkari
2013	B	`conf`	Selecting Fiction in Library Catalogs: A Gaze Tracking Study. TPDL Janna Pöntinen, Pertti Vakkari
2013	J	`jnl`	Task complexity affects information use: a questionnaire study in city administration. Inf. Res. Miamaria Saastamoinen, Sanna Kumpulainen, Pertti Vakkari, Kalervo Järvelin
2013	B	`conf`	The Role of Search Interface Features during Information Seeking. TPDL Abdigani Diriye, Ann Blandford, Anastasios Tombros, Pertti Vakkari
2012	—	`conf`	Emphasis on examining results in fiction searches contributes to finding good novels. JCDL Suvi Oksanen, Pertti Vakkari
2012	—	`conf`	In search of a good novel, neither reading activity nor querying matter, but examining search results does. IIiX Suvi Oksanen, Pertti Vakkari
2012	J	`jnl`	Internet use increases the odds of using the public library. J. Documentation Pertti Vakkari
2012	—	`conf`	Readers' search strategies for accessing books in public libraries. IIiX Anna Mikkonen, Pertti Vakkari
2012	J	`jnl`	Search effort degrades search output but improves task outcome. J. Assoc. Inf. Sci. Technol. Pertti Vakkari, Saila Huuskonen
2011	—	`conf`	Client's Temporal Trajectory in Child Protection: Piecing Information Together in a Client Information System. INTERACT (4) Saila Huuskonen, Pertti Vakkari
2011	J	`jnl`	Comparing Google to a digital reference service for answering factual and topical requests by keyword and question queries. Online Inf. Rev. Pertti Vakkari
2010	—	`conf`	Client information system as an everyday information tool in child protection work. IIiX Saila Huuskonen, Pertti Vakkari
2009	—	`conf`	Comparing Google to Ask-a-Librarian Service for Answering Factual and Topical Questions. ECDL Pertti Vakkari, Mari Taneli
2009	J	`jnl`	Lay persons' and professionals' nutrition-related vocabularies and their matching to a general and a specific thesaurus. J. Inf. Sci. Tuula Poikonen, Pertti Vakkari
2009	J	`jnl`	Question types in public libraries' digital reference service in Finland: Comparing 1999 and 2006. J. Assoc. Inf. Sci. Technol. Piritta Numminen, Pertti Vakkari
2008	J	`jnl`	How a general and a specific thesaurus cover expressions in patients' questions and physicians' answers. J. Documentation Johanna Eerola, Pertti Vakkari
2008	J	`jnl`	Keynote address. Trends and approaches in information behaviour research. Inf. Res. Pertti Vakkari
2008	J	`jnl`	Perceived influence of the use of electronic information resources on scholarly work and publication productivity. J. Assoc. Inf. Sci. Technol. Pertti Vakkari
2008	J	`jnl`	Students' search process and outcome in Medline in writing an essay for a class on evidence-based medicine. J. Documentation Saila Huuskonen, Pertti Vakkari
2007	J	`jnl`	Impact of research cultures on the use of digital library resources. J. Assoc. Inf. Sci. Technol. Sanna Talja, Pertti Vakkari, Jenny Fry, Paul Wouters
2006	J	`jnl`	Searching for electronic journal articles to support academic tasks. A case study of the use of the Finnish National Electronic Library (FinELib). Inf. Res. Pertti Vakkari, Sanna Talja
2006	—	`conf`	Situational relevance and task outcome. IIiX Saila Huuskonen, Pertti Vakkari
2006	—	`conf`	Trends in the use of digital libraries by scientists in 2000-2005: A case study of finelib. ASIST Pertti Vakkari
2005	—	`conf`	The Influence of the Scatter of Literature on the Use of Electronic Resources Across Disciplines: A Case Study of FinELib. ECDL Pertti Vakkari, Sanna Talja
2005	J	`jnl`	The anticipated and assessed contribution of information types in references retrieved for preparing a research proposal. J. Assoc. Inf. Sci. Technol. Sami Serola, Pertti Vakkari
2005	—	`conf`	Users' conceptual structure, search process and useful information types in the retrieved references. ASIST Pertti Vakkari, Sami Serola, Mikko Pennanen
2004	J	`jnl`	Discipline, availability of electronic resources and the use of Finnish National Electronic Library - FinELib. Inf. Res. Sanna Törmä, Pertti Vakkari
2004	J	`jnl`	Query exhaustivity, relevance feedback and search success in automatic and interactive query expansion. J. Documentation Pertti Vakkari, Susan Jones, Andy MacFarlane, Eero Sormunen
2004	—	`conf`	Subject Knowledge, Thesaurus-assisted Query Expansion and Search Success. RIAO Anne Sihvonen, Pertti Vakkari
2004	J	`jnl`	Subject knowledge improves interactive query expansion assisted by a thesaurus. J. Documentation Anne Sihvonen, Pertti Vakkari
2004	J	`jnl`	The influence of relevance levels on the effectiveness of interactive information retrieval. J. Assoc. Inf. Sci. Technol. Pertti Vakkari, Eero Sormunen
2003	—	`conf`	Advancing relevance research: Theory integration, methodological progress, and critical questions. Sponsored by SIG CRS, USE. ASIST Peiling Wang, Katriina Byström, Colleen Cool, Stefano Mizzaro, Tefko Saracevic, Pertti Vakkari, Marilyn Domas White
2003	J	`jnl`	Changes of search terms and tactics while writing a research proposal: A longitudinal case study. Inf. Process. Manag. Pertti Vakkari, Mikko Pennanen, Sami Serola
2003	J	`jnl`	Students' conceptual structure, search process, and outcome while preparing a research proposal: A longitudinal case study. J. Assoc. Inf. Sci. Technol. Mikko Pennanen, Pertti Vakkari
2003	J	`jnl`	Task-based information searching. Annu. Rev. Inf. Sci. Technol. Pertti Vakkari
2002	—	`ed.`	Emerging Frameworks and Methods: Proceedings of the Fourth International Conference on Conceptions of Library and Information Science (CoLIS 4), Seattle, WA, USA. CoLIS Harry Bruce, Raya Fidel, Peter Ingwersen, Pertti Vakkari
2002	A	`conf`	Subject Knowledge, Source of Terms, and Term Selection in Query Expansion: An Analytical Study. ECIR Pertti Vakkari
2001	J	`jnl`	A theory of the task-based information retrieval process: a summary and generalisation of a longitudinal study. J. Documentation Pertti Vakkari
2001	J	`jnl`	Changes in Search Tactics and Relevance Judgements when Preparing a Research Proposal A Summary of the Findings of a Longitudinal Study. Inf. Retr. Pertti Vakkari
2000	J	`jnl`	Changes in relevance criteria and problem stages in task performance. J. Documentation Pertti Vakkari, Nanna Hakala
2000	—	`conf`	Cognition and changes of search terms and tactics during task performance: A longitudinal case study. RIAO Pertti Vakkari
2000	A*	`conf`	Relevance and contributing information types of searched documents in task performance. SIGIR Pertti Vakkari
1999	—	`ed.`	Digital Libraries: Interdisciplinary Concepts, Challenges and Opportunities, CoLIS3 Proceedings, Dubrovnik, Croatia, 23-26 May 1999 CoLIS Tatjana Aparac, Tefko Saracevic, Peter Ingwersen, Pertti Vakkari
1999	J	`jnl`	Editorial: Information seeking in context (ISIC). Inf. Process. Manag. Carol Collier Kuhlthau, Pertti Vakkari
1999	J	`jnl`	Task complexity, problem structure and information actions - Integrating studies on information seeking and retrieval. Inf. Process. Manag. Pertti Vakkari
1998	J	`jnl`	Trends in ... a Critical Review: Growth of Theories on Information Seeking: An Analysis of Growth of a Theoretical Research Program on the Relation Between Task Complexity and Information Seeking. Inf. Process. Manag. Pertti Vakkari
1997	J	`jnl`	Theory growth in information science: applications of the theory of science to a theory of information seeking. J. Documentation Pertti Vakkari, Martti Kuokkanen
1993	J	`jnl`	The Evolution of Library and Information Science 1965-1985: A Content Analysis of Journal Articles. Inf. Process. Manag. Kalervo Järvelin, Pertti Vakkari