In this paper I provide some important information search models. This covers traditional and novel methods. An Information Retrieval (IR) System, which only returns documents containing the keywords in user query in high frequency, does not satisfy the user’s information need. Infact, the user is more concerned with receiving the documents, contain the information he needs than with receiving ...

background: short golden time is important to save the injured in earthquake and to start search and rescue (sar) operation as soon as possible in affected regions. this study evaluated application of geographic information system (gis) for sar operation in rigan town, kerman province, which was hit by an earthquake of 6.3 richter scale on december 12, 2010 at 22:12. materials and methods: a gi...

Automatic search session detection exploiting results similarity from an external document collection Search engines users apply complex search behaviours such as query reformulation and multitasking search to satisfy their information needs. These search behaviours may be observed through query logs, and constitute clues allowing a better understanding of users’ needs. In this perspective, it ...

Answer Set Programming (ASP) is a well-known problem solving approach based on nonmonotonic logic programs and efficient solvers. HEX-programs extend ASP with external atoms for access to arbitrary external information. In this work, we extend the evaluation principles of external atoms to partial assignments, lift nogood learning to this setting, and introduce a variant of nogood minimization....