Topological aspects of information retrieval

Topological Aspects of Information Retrieval

Let (DS, QS, sim) be a retrieval system consisting of a document space DS, a query space QS, and a function sim, expressing the similarity between a document and a query. Following Everett and Cater, we introduce topologies on the document space. These topologies are generated by the similarity function sim and the query space QS. Three topolgies will be studied : the retrieval topology, the si...

Aspects of Adaptivity in P2P Information Retrieval

Peer-to-Peer networks are comprised of multiple independently administered computers (peers) that cooperate via a common protocol in order to achieve a goal common to the peers. Helping the user find relevant information in a P2P network is the subject of the field of Peer-to-Peer IR. In order to be successful, a P2P-IR system needs to be adaptive in several respects. It has to adapt both to th...

Adversarial Information Retrieval Aspects of Sponsored Search

Search engines are commercial entities that require revenue to survive. The most prevalent revenue stream for search engines is sponsored search, where content providers have search engines service their links to users in response to queries or in a contextual manner on relevant Web sites. In exchange for providing this service, content providers pay search engines based on the number of clicks...

Computational Aspects of Connectionist Interaction Information Retrieval

Connectionism represents a soft computing technique that aims at enhancing retrieval effectiveness, and is, at the same time, very computation demanding. In IR, only recently has computational complexity of retrieval algorithms become a research issue, although its practical importance has long been recognized. The paper presents a methodical study of the computational complexity of a connectio...

Database Optimization Aspects for Information Retrieval