Exploring tweets normalization and query time sensitivity for twitter search

Zhongyu Wei, Wei Gao, Lanjun Zhou, Binyang Li, Kam Fai Wong

Research output: Contribution to journalConference article


This paper presents our work for the Realtime Adhoc Task of TREC 2011 Microblog Track. Microblog texts like tweets are generally characterized by the inclusion of a large proportion of irregular expressions, such as ill- formed words, which can lead to significant mismatch between query terms and tweets. In addition. Twitter queries are distinguished from Web queries with many unique characteristics, one of which reflects the clearly distinct temporal aspects of Twitter search behavior. In this study, we deal with the first problem by normalizing tweet texts and the second by capturing the temporal characteristics of a topic. We divided topics into two categories: time-sensitive and time-insensitive. For the time-sensitive ones, we introduce a decay factor to adjust the relevance score of results according to the expected date of the topical event to happen, and then re-rank the search results. Experiments demonstrate that our methods are significantly better than baseline and outperform the medium of all runs.

Original languageEnglish
JournalNIST Special Publication
Publication statusPublished - 1 Dec 2011
Event20th Text REtrieval Conference, TREC 2011 - Gaithersburg, MD, United States
Duration: 15 Nov 201118 Nov 2011


ASJC Scopus subject areas

  • Engineering(all)

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