EasySearch
This software is a fully functional BM25 fulltext search engine with both pseudo relevance and user relevance feedback, 
capable of performing web search as well. EasySearch is custom extension of Lucene to incorporate a BM25 ranking model, a pseudo relevance feedback model and a user relevance feedback model. The relevance models are used to perform query expansions on user queries. 
EasySearch also has a query suggestion model and was developed in java using the PlayFramework.

Copyright 2011

Licensed under the Apache License, Version 2.0 (the "License"); you may not use any file in this project except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
See the License for the specific language governing permissions and limitations under the License.