• Publications
  • Influence
A theory of the task-based information retrieval process: a summary and generalisation of a longitudinal study
  • P. Vakkari
  • Computer Science
  • J. Documentation
  • 1 February 2001
TLDR
The aim of this article is threefold: (1) to give a summary of empirical results reported earlier on relations between students‘ problem stages in the course of writing their research proposals for a master’s thesis and the information sought, choice of search terms and tactics and relevance assessments of the information found for that task; (2) to show how the findings of the study refine Kuhlthau‘s model of information search process in the field of information retrieval (IR). Expand
  • 324
  • 39
Task-based information searching
  • P. Vakkari
  • Computer Science
  • Annu. Rev. Inf. Sci. Technol.
  • 31 January 2005
TLDR
La prise en compte de la tâche en vue de laquelle une recherche d'information a ete entreprise est necessaire a une meilleure comprehension du processus de Recherche et, par extension, a l'amelioration de la conception de systemes. Expand
  • 361
  • 25
Task complexity, problem structure and information actions - Integrating studies on information seeking and retrieval
  • P. Vakkari
  • Computer Science
  • Inf. Process. Manag.
  • 1 November 1999
TLDR
Analyzing actions to be supported by information and information retrieval systems is vital for understanding the needs of different types of information, search strategies and relevance assessments. Expand
  • 364
  • 25
Content Analysis of Research Articles in Library and Information Science.
TLDR
A content analysis of the research of library and information science (LIS) is reported. Expand
  • 158
  • 15
Changes of search terms and tactics while writing a research proposal: A longitudinal case study
TLDR
The study analyses how students' growing understanding of the topic and search experience were related to their choice of search tactics and terms while preparing a research proposal for a small empirical study. Expand
  • 217
  • 14
Changes in relevance criteria and problem stages in task performance
TLDR
The objective of this study is to analyse how changes in relevance criteria are related to changes in problem stages during the task performance process. Expand
  • 248
  • 13
The Evolution of Library and Information Science 1965-1985: A Content Analysis of Journal Articles
TLDR
A content analysis of the research of library and information science (LIS) from 1965 to 1985 is reported. Expand
  • 175
  • 13
Relevance and contributing information types of searched documents in task performance
TLDR
This study categorizes the types of information in documents being used in writing a research proposal for a master's thesis by eleven students throughout the various stages of the writing process. Expand
  • 96
  • 12
Information seeking in context: A challenging meta-theory.
  • P. Vakkari
  • Sociology, Computer Science
  • 1 August 1997
  • 148
  • 8
Cognition and changes of search terms and tactics during task performance: A longitudinal case study
TLDR
The objective of this study is to analyse how changes in users' problem stages during task performance are related to changes in search tactics and term choice. Expand
  • 106
  • 8