Information Retrieval

Information retrieval concerns develping systems that find material from within a large unstructured collection (e.g. the internet) that satisfy the user's need. The best example of such systems are web search engines, such as Google, but there are many other specialized applications of information retrieval (such as collaborative filtering and recommender systems). Information retrieval can be thought of as an inference problem: given the user's query, what are the relevant items in the data collection?

Some relevant publications: