Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/97637
Title: TwiNER : named entity recognition in targeted twitter stream
Authors: Li, Chenliang
Weng, Jianshu
He, Qi
Yao, Yuxia
Datta, Anwitaman
Sun, Aixin
Lee, Bu-Sung
Keywords: DRNTU::Engineering::Computer science and engineering
Issue Date: 2012
Source: Li, C., Weng, J., He, Q., Yao, Y., Datta, A., Sun, A., et al. (2012). TwiNER: named entity recognition in targeted twitter stream. Proceedings of the 35th international ACM SIGIR conference on Research and development in information retrieval - SIGIR '12.
Conference: International conference on Research and development in information retrieval (35th : 2012)
Abstract: Many private and/or public organizations have been reported to create and monitor targeted Twitter streams to collect and understand users' opinions about the organizations. Targeted Twitter stream is usually constructed by filtering tweets with user-defined selection criteria e.g. tweets published by users from a selected region, or tweets that match one or more predefined keywords. Targeted Twitter stream is then monitored to collect and understand users' opinions about the organizations. There is an emerging need for early crisis detection and response with such target stream. Such applications require a good named entity recognition (NER) system for Twitter, which is able to automatically discover emerging named entities that is potentially linked to the crisis. In this paper, we present a novel 2-step unsupervised NER system for targeted Twitter stream, called TwiNER. In the first step, it leverages on the global context obtained from Wikipedia and Web N-Gram corpus to partition tweets into valid segments (phrases) using a dynamic programming algorithm. Each such tweet segment is a candidate named entity. It is observed that the named entities in the targeted stream usually exhibit a gregarious property, due to the way the targeted stream is constructed. In the second step, TwiNER constructs a random walk model to exploit the gregarious property in the local context derived from the Twitter stream. The highly-ranked segments have a higher chance of being true named entities. We evaluated TwiNER on two sets of real-life tweets simulating two targeted streams. Evaluated using labeled ground truth, TwiNER achieves comparable performance as with conventional approaches in both streams. Various settings of TwiNER have also been examined to verify our global context + local context combo idea.
URI: https://hdl.handle.net/10356/97637
http://hdl.handle.net/10220/12087
DOI: 10.1145/2348283.2348380
Schools: School of Computer Engineering 
Rights: © 2012 ACM.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:SCSE Conference Papers

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