Abstract. We present a categorical denotational semantics for a database mapping, based on views, in the most general framework of a database integration/exchange. Developed databa...
Extractive multi-document summarization is the task of choosing sentences from a set of documents to compose a summary text in response to a user query. We propose a generative ap...
Aggregate ranking tasks are those where documents are not the final ranking outcome, but instead an intermediary component. For instance, in expert search, a ranking of candidate ...
In highly interactive dynamic web database systems, user satisfaction determines their success. In such systems, userrequested web pages are dynamically created by executing a numb...
Shenoda Guirguis, Mohamed A. Sharaf, Panos K. Chry...
Organizing Web search results into a hierarchy of topics and subtopics facilitates browsing the collection and locating results of interest. In this paper, we propose a new hierar...