ridm@nrct.go.th   ระบบคลังข้อมูลงานวิจัยไทย   รายการโปรดที่คุณเลือกไว้

TwiNER : named entity recognition in targeted twitter stream

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : TwiNER : named entity recognition in targeted twitter stream
นักวิจัย : Li, Chenliang , Weng, Jianshu , He, Qi , Yao, Yuxia , Datta, Anwitaman , Sun, Aixin , Lee, Bu-Sung
คำค้น : DRNTU::Engineering::Computer science and engineering.
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2555
อ้างอิง : 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. , http://hdl.handle.net/10220/12087 , http://dx.doi.org/10.1145/2348283.2348380
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : -
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

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.

บรรณานุกรม :
Li, Chenliang , Weng, Jianshu , He, Qi , Yao, Yuxia , Datta, Anwitaman , Sun, Aixin , Lee, Bu-Sung . (2555). TwiNER : named entity recognition in targeted twitter stream.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Li, Chenliang , Weng, Jianshu , He, Qi , Yao, Yuxia , Datta, Anwitaman , Sun, Aixin , Lee, Bu-Sung . 2555. "TwiNER : named entity recognition in targeted twitter stream".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Li, Chenliang , Weng, Jianshu , He, Qi , Yao, Yuxia , Datta, Anwitaman , Sun, Aixin , Lee, Bu-Sung . "TwiNER : named entity recognition in targeted twitter stream."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2555. Print.
Li, Chenliang , Weng, Jianshu , He, Qi , Yao, Yuxia , Datta, Anwitaman , Sun, Aixin , Lee, Bu-Sung . TwiNER : named entity recognition in targeted twitter stream. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2555.