| 摘要 |
A system and method efficiently and anonymously retrieves large scale Web data through a restricted query interface. A number of proxy servers are utilized to permit parallel access to a target Web server for processing multiple querie s simultaneously. Latency in the individual queries is absorbed by the proxy servers. Queries that would otherwise appear structured to the target server are assigned to the proxy server in a random fashion, obscuring the structured nature of the queries. The anonymous nature of the queries made by the proxy servers furthermore concea ls the identity of the originating server.
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