Pertti Vakkari


1993

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The Evolution of Library and Information Science 1965-1985: A Content Analysis of Journal Articles
Kalervo Järvelin | Pertti Vakkari
1993 Volume 29 Issue 1

1998

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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
Pertti Vakkari
1998 Volume 34 Issue 2-3

1999

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Editorial: Information seeking in context (ISIC)
Carol Collier Kuhlthau | Pertti Vakkari
1999 Volume 35 Issue 6

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Task complexity, problem structure and information actions - Integrating studies on information seeking and retrieval
Pertti Vakkari
1999 Volume 35 Issue 6

2000

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Relevance and contributing information types of searched documents in task performance
Pertti Vakkari
SIGIR 2000: Proceedings of the 23rd Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, July 24-28, 2000, Athens, Greece

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Cognition and changes of search terms and tactics during task performance: A longitudinal case study
Pertti Vakkari
Computer-Assisted Information Retrieval (Recherche d'Information et ses Applications) - RIAO 2000, 6th International Conference, College de France, France, April 12-14, 2000. Proceedings

2001

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Changes in Search Tactics and Relevance Judgements when Preparing a Research Proposal A Summary of the Findings of a Longitudinal Study
Pertti Vakkari
2001 Volume 4 Issue 3-4

2002

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Subject Knowledge, Source of Terms, and Term Selection in Query Expansion: An Analytical Study
Pertti Vakkari
Advances in Information Retrieval, 24th BCS-IRSG European Colloquium on IR Research Glasgow, UK, March 25-27, 2002 Proceedings

2003

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Students' conceptual structure, search process, and outcome while preparing a research proposal: A longitudinal case study
Mikko Pennanen | Pertti Vakkari
2003 Volume 54 Issue 8

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Changes of search terms and tactics while writing a research proposal: A longitudinal case study
Pertti Vakkari | Mikko Pennanen | Sami Serola
2003 Volume 39 Issue 3

2004

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Subject Knowledge, Thesaurus-assisted Query Expansion and Search Success
Anne Sihvonen | Pertti Vakkari
Computer-Assisted Information Retrieval (Recherche d'Information et ses Applications) - RIAO 2004, 7th International Conference, University of Avignon, France, April 26-28, 2004. Proceedings

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The influence of relevance levels on the effectiveness of interactive information retrieval
Pertti Vakkari | Eero Sormunen
2004 Volume 55 Issue 11

2005

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The anticipated and assessed contribution of information types in references retrieved for preparing a research proposal
Sami Serola | Pertti Vakkari
2005 Volume 56 Issue 4

2006

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Situational relevance and task outcome
Saila Huuskonen | Pertti Vakkari
Proceedings of the 1st International Conference on Information Interaction in Context, IIiX 2006, Copenhagen, Denmark, October 18-20, 2006

2007

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Impact of research cultures on the use of digital library resources
Sanna Talja | Pertti Vakkari | Jenny Fry | Paul Wouters
2007 Volume 58 Issue 11

2008

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Perceived influence of the use of electronic information resources on scholarly work and publication productivity
Pertti Vakkari
2008 Volume 59 Issue 4

2009

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Question types in public libraries' digital reference service in Finland: Comparing 1999 and 2006
Piritta Numminen | Pertti Vakkari
2009 Volume 60 Issue 6

2010

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Client information system as an everyday information tool in child protection work
Saila Huuskonen | Pertti Vakkari
Information Interaction in Context Symposium, IIiX 2010, New Brunswick, NJ, USA, August 18-21, 2010

2012

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In search of a good novel, neither reading activity nor querying matter, but examining search results does
Suvi Oksanen | Pertti Vakkari
Information Interaction in Context: 2012, IIix'12, Nijmegen, The Netherlands, August 21-24, 2012

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Readers' search strategies for accessing books in public libraries
Anna Mikkonen | Pertti Vakkari
Information Interaction in Context: 2012, IIix'12, Nijmegen, The Netherlands, August 21-24, 2012

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Search effort degrades search output but improves task outcome
Pertti Vakkari | Saila Huuskonen
2012 Volume 63 Issue 4

2013

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"I Did It My Way": Social workers as secondary designers of a client information system
Saila Huuskonen | Pertti Vakkari
2013 Volume 49 Issue 1

2014

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Books' interest grading and dwell time in metadata in selecting fiction
Pertti Vakkari | Arto Luoma | Janna Pöntinen
Fifth Information Interaction in Context Symposium, IIiX '14, Regensburg, Germany, August 26-29, 2014

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Evaluation methodologies in information retrieval dagstuhl seminar 13441
Maristella Agosti | Norbert Fuhr | Elaine G. Toms | Pertti Vakkari
2014 Volume 48 Issue 1

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Evolution of library and information science, 1965-2005: Content analysis of journal articles
Otto Tuomaala | Kalervo Järvelin | Pertti Vakkari
2014 Volume 65 Issue 7

2015

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Task-Based Information Interaction Evaluation: The Viewpoint of Program Theory
Kalervo Järvelin | Pertti Vakkari | Paavo Arvola | Feza Baskaya | Anni Järvelin | Jaana Kekäläinen | Heikki Keskustalo | Sanna Kumpulainen | Miamaria Saastamoinen | Reijo Savolainen | Eero Sormunen
2015 Volume 33 Issue 1

2016

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Proceedings of the 2016 ACM Conference on Human Information Interaction and Retrieval, CHIIR 2016, Carrboro, North Carolina, USA, March 13-17, 2016

Proceedings of the 2016 ACM Conference on Human Information Interaction and Retrieval, CHIIR 2016, Carrboro, North Carolina, USA, March 13-17, 2016

2017

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Reader characteristics, behavior, and success in fiction book search
Anna Mikkonen | Pertti Vakkari
2017 Volume 68 Issue 9

2018

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Information Search Processes in Complex Tasks
Pertti Vakkari
Proceedings of the 2018 Conference on Human Information Interaction and Retrieval, CHIIR 2018, New Brunswick, NJ, USA, March 11-15, 2018

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Effects of subject-oriented visualization tools on search by novices and intermediates
I-Chin Wu | Pertti Vakkari
2018 Volume 69 Issue 12

2019

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Modeling the usefulness of search results as measured by information use
Pertti Vakkari | Michael Völske | Martin Potthast | Matthias Hagen | Benno Stein
2019 Volume 56 Issue 3

2020

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The Usefulness of Search Results: A Systematization of Types and Predictors
Pertti Vakkari
CHIIR '20: Conference on Human Information Interaction and Retrieval, Vancouver, BC, Canada, March 14-18, 2020

2021

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Predicting essay quality from search and writing behavior
Pertti Vakkari | Michael Völske | Martin Potthast | Matthias Hagen | Benno Stein
2021 Volume 72 Issue 7