Ranking rich mobile verticals based on clicks and abandonment

Mami Kawasaki, Inho Kang, Tetsuya Sakai

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

1 Citation (Scopus)


We consider the problem of ranking rich verticals, which we call "cards," for a given mobile search query. Examples of card types in-clude "SHOP" (showing access and contact information of a shop), "WEATHER" (showing a weather forecast for a particular loca-tion), and "TV" (showing information about a TV programme). These cards can be highly visual and/or concise, and may often sat-isfy the user's information need without making her click on them. While this "good abandonment" of the search engine result page is ideal especially for mobile environments where the interaction be-tween the user and the search engine should be minimal, it poses a challenge for search engine companies whose ranking algorithms rely heavily on click data. In order to provide the right card types to the user for a given query, we propose a graph-based approach which extends a click-based automatic relevance estimation algo-rithm of Agrawal et al., by incorporating an abandonment-based preference rule. Using a real mobile query log from a commer-cial search engine, we constructed a data set containing 2,472 pair-wise card type preferences covering 992 distinct queries, by hiring three independent assessors. Our proposed method outperforms a click-only baseline by 53-68% in terms of card type preference accuracy. The improvement is also statistically highly significant, with p0:0000 according to the paired randomisation test.

Original languageEnglish
Title of host publicationCIKM 2017 - Proceedings of the 2017 ACM Conference on Information and Knowledge Management
PublisherAssociation for Computing Machinery
Number of pages4
ISBN (Electronic)9781450349185
Publication statusPublished - 2017 Nov 6
Event26th ACM International Conference on Information and Knowledge Management, CIKM 2017 - Singapore, Singapore
Duration: 2017 Nov 62017 Nov 10

Publication series

NameInternational Conference on Information and Knowledge Management, Proceedings
VolumePart F131841


Other26th ACM International Conference on Information and Knowledge Management, CIKM 2017


  • Click data
  • Good abandonment
  • Mobile search
  • Vertical ranking

ASJC Scopus subject areas

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


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