Cited by 151Information Retrieval and Search BehaviorRecommender Systems and TechniquesData Visualization and Analytics

Is exploratory search different? A comparison of information search behavior for exploratory and lookup tasks

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Athukorala, Kumaripaba, Głowacka, Dorota, Jacucci, Giulio, Oulasvirta, Antti, Vreeken, Jilles·2016·Journal of the Association for Information Science and Technology

Abstract

Exploratory search is an increasingly important activity yet challenging for users. Although there exists an ample amount of research into understanding exploration, most of the major information retrieval (IR) systems do not provide tailored and adaptive support for such tasks. One reason is the lack of empirical knowledge on how to distinguish exploratory and lookup search behaviors in IR systems. The goal of this article is to investigate how to separate the 2 types of tasks in an IR system using easily measurable behaviors. In this article, we first review characteristics of exploratory search behavior. We then report on a controlled study of 6 search tasks with 3 exploratory—comparison, knowledge acquisition, planning—and 3 lookup tasks—fact‐finding, navigational, question answering. The results are encouraging, showing that IR systems can distinguish the 2 search categories in the course of a search session. The most distinctive indicators that characterize exploratory search behaviors are query length, maximum scroll depth, and task completion time. However, 2 tasks are borderline and exhibit mixed characteristics. We assess the applicability of this finding by reporting on several classification experiments. Our results have valuable implications for designing tailored and adaptive IR systems.

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Authors
Athukorala, K., Głowacka, D., Jacucci, G., Oulasvirta, A., & Vreeken, J.
Affiliations
  • University of Helsinki (FI)
  • Aalto University (FI)
  • Max Planck Institute for Informatics (DE)
Corresponding author
  • Athukorala, Kumaripaba
  • Głowacka, Dorota
  • Jacucci, Giulio
  • Oulasvirta, Antti
  • Vreeken, Jilles
Venue
Journal of the Association for Information Science and Technology
Publisher
Wiley
Published
2015-10-22
Volume
67
Issue
11
Pages
2635-2651
ISSN
  • 2330-1635 (ISSN-L)
  • 2330-1643
OpenAlex
W2115787195
Cited by
150
References
57
Citations by year
2026: 11 · 2025: 11 · 2024: 19 · 2023: 11 · 2022: 16 · 2021: 18 · 2020: 17 · 2019: 14 · 2018: 10 · 2017: 17 · 2016: 6
FWCI
29.58
Type
journal article
Language
en
Open access
Locations
  • Journal of the Association for Information Science and Technology (publishedVersion, cc-by)
  • Edinburgh Research Explorer (University of Edinburgh) (submittedVersion, cc-by)
  • RePEc: Research Papers in Economics (submittedVersion)
  • Aaltodoc (Aalto University) (submittedVersion, cc-by)
  • Työväentutkimus Vuosikirja (submittedVersion)
  • MPG.PuRe (Max Planck Society) (submittedVersion)
Funders
  • Cluster of Excellence “Multimodal Computing and Interaction”
  • European Research Council (ERC) (637991)
  • Academy of Finland
  • The Finnish Funding Agency
  • MindSee (611570)
Topics
  • Physical Sciences › Computer Science › Information Systems › Information Retrieval and Search Behavior
  • Physical Sciences › Computer Science › Information Systems › Recommender Systems and Techniques
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Data Visualization and Analytics
Keywords
exploratory search, information seeking, query length, task completion time, knowledge acquisition, planning tasks, question answering

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