Ranking model selection and fusion for effective microblog search

Zhongyu Wei, Wei Gao, Tarek El-Ganainy, Walid Magdy, Kam Fai Wong

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

10 Citations (Scopus)

Abstract

Re-ranking was shown to have positive impact on the effectiveness for microblog search. Yet existing approaches mostly focused on using a single ranker to learn some better ranking function with respect to various relevance features. Given various available rank learners (such as learning to rank algorithms), in this work, we mainly study an orthogonal problem where multiple learned ranking models form an ensemble for re-ranking the retrieved tweets than just using a single ranking model in order to achieve higher search effectiveness. We explore the use of query-sensitive model selection and rank fusion methods based on the result lists produced from multiple rank learners. Base on the TREC microblog datasets, we found that our selection-based ensemble approach can significantly outperform using the single best ranker, and it also has clear advantage over the rank fusion that combines the results of all the available models.

Original languageEnglish
Title of host publicationSoMeRA 2014 - Proceedings of the 1st ACM International Workshop on Social Media Retrieval and Analysis, Co-located with SIGIR 2014
PublisherAssociation for Computing Machinery, Inc
Pages21-26
Number of pages6
ISBN (Electronic)9781450330220
DOIs
Publication statusPublished - 1 Jan 2014
Event1st ACM International Workshop on Social Media Retrieval and Analysis, SoMeRA 2014 - Co-located with SIGIR 2014 - Gold Coast, Australia
Duration: 11 Jul 201411 Jul 2014

Publication series

NameSoMeRA 2014 - Proceedings of the 1st ACM International Workshop on Social Media Retrieval and Analysis, Co-located with SIGIR 2014

Other

Other1st ACM International Workshop on Social Media Retrieval and Analysis, SoMeRA 2014 - Co-located with SIGIR 2014
CountryAustralia
CityGold Coast
Period11/7/1411/7/14

Keywords

  • Aggregation
  • Microblog search
  • Rank fusion
  • Ranker selection
  • Re-ranking
  • Twitter

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Information Systems
  • Media Technology
  • Communication

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  • Cite this

    Wei, Z., Gao, W., El-Ganainy, T., Magdy, W., & Wong, K. F. (2014). Ranking model selection and fusion for effective microblog search. In SoMeRA 2014 - Proceedings of the 1st ACM International Workshop on Social Media Retrieval and Analysis, Co-located with SIGIR 2014 (pp. 21-26). (SoMeRA 2014 - Proceedings of the 1st ACM International Workshop on Social Media Retrieval and Analysis, Co-located with SIGIR 2014). Association for Computing Machinery, Inc. https://doi.org/10.1145/2632188.2632202