Towards Understanding the Impact of Length in Web Search Result Summaries over a Speech-only Communication Channel

  • Johanne R. Trippas
  • Damiano Spina
  • Mark Sanderson
  • Lawrence Cavedon
Proceedings of SIGIR'15, 2015

Web search via speech is becoming increasingly ubiquitous, particularly through the use of mobile devices. Presenting search results over a speech-only communication channel involves a number of challenges for users due to cognitive limitations and the serial nature of the audio channel. We investigate the impact of search result summary length in speech-based web search, and compare to a text baseline. We used a crowdsourcing platform as a data collection tool, finding that while users preferred longer, more informative summaries for text presentation, for single-facet queries users much preferred shortened summaries and were less likely to need to replay them, without significant change in distribution of judgement made. For multi-facet queries, user preferences were not as clear, suggesting that more sophisticated techniques are required to handle these complex queries.

@inproceedings{trippas2015towards,
author={Trippas, Johanne and Spina, Damiano and Sanderson, Mark and Cavedon, Lawrence},
title={Towards Understanding the Impact of Length in Web Search Result Summaries over a 
           Speech-only Communication Channel},
booktitle={Proceedings of SIGIR'15},
year={2015}
}
Damiano Spina
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