Weighted Information Retrieval Algorithms for Onsite Object Service

Designing proper algorithm is necessary for applications that query and analyze mass-information for high efficiency in various information services. In this paper, we discuss weighted information retrieval algorithms for an newly service, onsite object service. Four retrieval algorithms with one-dimension weight and one retrieval algorithm with multi-dimension weight are proposed to address the requirements of OOS. Detailed performance analysis and comparison about the advantage and disadvantage of these 5 different algorithms are presented later. And at last a conclusion is drawn about the recommendation for these algorithms in different scenarios.