Introduction - If you have any usage issues, please Google them yourself
DDH vertical search engine business edition, is currently the only commercial operation of the Internet to the vertical search engine system, developed by the JAVA language, you can run on a large cluster of network information integration system. DDH integrated Nutch (open source search engine system), UCI (Web information extraction system) and SOLR (enterprise level search application server). Whether the performance of the system or the stability of the system, the DDH vertical search engine system, can be considered one of the top vertical search engine system.