Our team explored several new approaches in the update and opinion summarization tasks in the Text Analysis Conference (TAC) 2008. For the update task, we refine our previous timestamped graph approach by incorporating information about temporal ordering of events in the articles, by using the publicly available Tarsqi toolkit. For the pilot opinion task, we utilize the provided opinion snippet...

It is well known that some XML elements correspond to objects (in the sense of object-orientation) and others do not. The question we consider in this paper is what benefits we can derive from paying attention to such object semantics, particularly for the problem of keyword queries. Keyword queries against XML data have been studied extensively in recent years, with several lowest-common-ances...

PURPOSE To describe the present status and changing patterns of medical papers related to keywords of vaccine and vaccination published in Korea over the last 50 years, and provide basic data for future studies. MATERIALS AND METHODS 185,603 papers are registered in the medical database KoreaMed, which is run by Korean Association of Medical Journal Editors. Among these papers, a search with ...

Opinion formation has been the topic of increased research interest recently, and various models have been proposed. These models, however, have their limitations, including (i) it is generally assumed that adjacent nodes holding similar opinions will further reduce the difference between them, while adjacent nodes holding significantly different opinions would either do nothing, or cut the lin...