software . 2014

Segmentation Algorithm

Gad, Samah;
Open Access English
  • Published: 09 Apr 2014
  • Country: United States
Abstract
We developed a dynamic temporal segmentation algorithm that wraps around topic modeling algorithms for the purpose of identifying change points where significant shifts in topics occur. The main task of the segmentation algorithm is to automatically partition the total time period defined by the documents in the collection such that segment boundaries indicate important periods of temporal evolution and re-organization. The algorithm moves across the data by time and evaluates two adjacent windows, assuming a given segmentation granularity (e.g., discrete days, weeks, or months). This granularity varies from one application to another and is decided by domain ex...
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