Analyzing feature trajectories for event detection

• Main Authors: HE, Qi, CHANG, Kuiyu, LIM, Ee Peng
• Format: text
• Language: English
• Published: Institutional Knowledge at Singapore Management University 2007
• Subjects: Databases and Information Systems; Numerical Analysis and Scientific Computing
• Online Access: https://ink.library.smu.edu.sg/sis_research/1269; https://ink.library.smu.edu.sg/context/sis_research/article/2268/viewcontent/p207_he.pdf
• Institution: Singapore Management University

We consider the problem of analyzing word trajectories in both time and frequency domains, with the specific goal of identifying important and less-reported, periodic and aperiodic words. A set of words with identical trends can be grouped together to reconstruct an event in a completely un-supervis...