Search engines are powerful tools to find information on the Web. However, they commonly return a lot of irrelevant documents when the users’ queries are not specific enough. To...
We introduce the Multiple Relationship Similarity Spreading Algorithm (MRSSA) to enhance IR effectiveness. This method has similarity computed in an iterative “spreading” fash...
Esfinge is a general domain Portuguese question answering system which uses the information available on the Web as an additional resource when searching for answers. Other externa...
Opening up large amounts of loosely structured information for easy access and use is a complex problem. This paper describes two systems that address different aspects of the pro...
This short paper describes the beginnings of a project to digitize some of the older literature in the information retrieval field. So far 14 of the older reports, such as the Cra...