| 摘要 |
<p>PROBLEM TO BE SOLVED: To collect a useful retrieval query.SOLUTION: A vertical server has a storage part which stores a retrieval query. When receiving the retrieval query from a user terminal, the vertical server stores the received retrieval query in the storage part. Moreover, the vertical server also stores the received retrieval query in the storage part when receiving retrieval query received by another vertical server or host server from the user terminal, from another server in a reception destination.</p> |
