A statisticallanguage model, or more simply a language model, is a prob abilistic mechanism for generating text. Such adefinition is general enough to include a

As online information grows dramatically, search engines such as Google are playing a more and more important role in our lives. Critical to all search engines

Class-tested and coherent, this textbook teaches classical and web information retrieval, including web search and the related areas of text classification and

As online information grows dramatically, search engines such as Google are playing a more and more important role in our lives. Critical to all search engines

Big data and human-computer information retrieval (HCIR) are changing IR. They capture the dynamic changes in the data and dynamic interactions of users with IR