Information Retrieval (IR) is the discipline that deals with retrieval of unstructured data, especially textual documents, in response to a query or topic statement, which mayitselfbeunstructured,e.g.,asentenceorevenanotherdocument,orwhichmay be s

mahout是一个开源的软件包，对搜索引擎的聚类,分类算法以及推荐系统算法的代码实现-mahout is an open source software package, the search engine clustering, classification and recommendation system algorithm algorithms code