CIKM'04 - IR-KM(Information Retrieval and Knowledge Management): Text Mining Dynamic Extraction of Topic Descriptors and Discriminators: Towards Automatic Context-based Topic Search Ana Maguitman David Leake Thomas Reichherzer Filippo Menczer Event Threading within News Topics Ramesh Nallapati Ao Feng Fuchun Peng James Allan Approximating the Top-m Passages in a Parallel Question Answering System Charles L. A. Clarke Egidio L. Terra Return to CIKM'04 Sessions ©2005 Association for Computing Machinery