A comparative study of query-biased and non-redundant snippets for structured search on mobile devices

Nikita Spirin, Alexander Kotov, Karrie Karahalios, Vassil Mladenov, Pavel Izhutov

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

To investigate what kind of snippets are better suited for structured search on mobile devices, we built an experimental mobile search application and conducted a task-oriented interactive user study with 36 participants. Four different versions of a search engine result page (SERP) were compared by varying the snippet type (query-biased vs. nonredundant) and the snippet length (two vs. four lines per result). We adopted a within-subjects experiment design and made each participant do four realistic search tasks using different versions of the application. During the study sessions, we collected search logs, "think-aloud" comments, and post-task surveys. Each session was finalized with an interview. We found that with non-redundant snippets the participants were able to complete the tasks faster and find more relevant results. Most participants preferred non-redundant snippets and wanted to see more information about each result on the SERP for any snippet type. Yet, the participants felt that the version with query-biased snippets was easier to use. We conclude with a set of practical design recommendations.

Original languageEnglish (US)
Title of host publicationCIKM 2016 - Proceedings of the 2016 ACM Conference on Information and Knowledge Management
PublisherAssociation for Computing Machinery
Pages2389-2394
Number of pages6
ISBN (Electronic)9781450340731
DOIs
StatePublished - Oct 24 2016
Event25th ACM International Conference on Information and Knowledge Management, CIKM 2016 - Indianapolis, United States
Duration: Oct 24 2016Oct 28 2016

Publication series

NameInternational Conference on Information and Knowledge Management, Proceedings
Volume24-28-October-2016

Other

Other25th ACM International Conference on Information and Knowledge Management, CIKM 2016
Country/TerritoryUnited States
CityIndianapolis
Period10/24/1610/28/16

Keywords

  • Mobile search
  • Snippet
  • Structured search
  • User study

ASJC Scopus subject areas

  • Decision Sciences(all)
  • Business, Management and Accounting(all)

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