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    • 9. 发明授权
    • Techniques for selectively performing searches against data and providing search results
    • 用于选择性地执行针对数据的搜索并提供搜索结果的技术
    • US07747638B1
    • 2010-06-29
    • US10964980
    • 2004-10-13
    • Patrick LooSotirios MatzanasMing ZhangMatthias EichstaedtMitra NaeimiJim Fondren
    • Patrick LooSotirios MatzanasMing ZhangMatthias EichstaedtMitra NaeimiJim Fondren
    • G06F7/00G06F17/30
    • G06F17/30646
    • Search queries are received that should be run against data. As time elapses, new queries and new data may be received. Previously run queries may be referred to as base queries and the data that was searched using the queries may be referred to as base data. The base queries and new queries may be parsed to identify queries that are similar. The similar queries are then combined into a unique query so that multiple queries that are similar are not used to search the same data. The unique queries that are generated are used to search the new data received to generate a first set of search results. The new queries received are used to search the base data to generate a second set of search results. The search results for the new queries are then determined based on the first and second set of search results. Also, the search results for the base queries are determined based on the first set results. Accordingly, the base queries used to search the new data received and the new queries are used to search the new data and the base data.
    • 收到的搜索查询应该针对数据运行。 随着时间的推移,可能会收到新的查询和新的数据。 以前运行的查询可以被称为基本查询,并且使用查询搜索的数据可以被称为基础数据。 可以解析基本查询和新查询以识别类似的查询。 然后,将类似的查询组合成唯一的查询,以便不使用相似的多个查询来搜索相同的数据。 生成的唯一查询用于搜索接收到的新数据以生成第一组搜索结果。 收到的新查询用于搜索基本数据以生成第二组搜索结果。 然后,基于第一组和第二组搜索结果确定新查询的搜索结果。 此外,基于第一集合结果确定基本查询的搜索结果。 因此,用于搜索接收的新数据的基本查询和新查询用于搜索新数据和基本数据。
    • 10. 发明授权
    • System and method for dynamically limiting robot access to server data
    • 动态限制机器人访问服务器数据的系统和方法
    • US06662230B1
    • 2003-12-09
    • US09421978
    • 1999-10-20
    • Matthias EichstaedtMichael Lawrence EmensReiner Kraft
    • Matthias EichstaedtMichael Lawrence EmensReiner Kraft
    • H04L900
    • H04L63/10G06F21/62G06F2221/2101H04L63/1416
    • A method for automatically limiting access of a client computer to data objects accessed through a server computer dynamically prevents robots or webcrawlers from obtaining too much of the server database and from dramatically reducing server performance. The method includes the steps of receiving a request for a data object, recording a log entry for the request, calculating client request values, and refusing the request if a client request value exceeds one of a set of corresponding predefined maximum request values. Each log entry contains a client identifier, timestamp, and at least one data object identifier for the request. The client request values preferably include a request frequency, which is compared with a predefined maximum request frequency, and a cumulative data request, which is compared with a data access threshold. If the client is refused access, the client identifier is added to a deny list, and future requests from the client are automatically denied. The calculated cumulative data request may be for a single client, or it may be for all clients, in order to detect a robot that is divided among multiple client identifiers. The cumulative data request check may consider the total percentage of server resources being given away, or a pattern in the requests. Also provided is a data protection system containing a log file, a request analyzer, and a dynamically-generated deny list. Requests to the server are intercepted and sent to the data protection system first.
    • 用于自动限制客户端计算机访问通过服务器计算机访问的数据对象的方法可以动态地防止机器人或网络抓取工具获取太多的服务器数据库,并显着降低服务器性能。 该方法包括以下步骤:接收对数据对象的请求,记录请求的日志条目,计算客户端请求值,以及如果客户端请求值超过一组对应的预定义的最大请求值,则拒绝该请求。 每个日志条目包含客户端标识符,时间戳和至少一个请求的数据对象标识符。 客户端请求值优选地包括与预定义的最大请求频率进行比较的请求频率和与数据访问阈值进行比较的累积数据请求。 如果客户端被拒绝访问,则客户机标识符被添加到拒绝列表中,并且来自客户端的未来请求将被自动拒绝。 所计算的累积数据请求可以是针对单个客户端,或者可以是针对所有客户机,以便检测在多个客户端标识符之间划分的机器人。 累积数据请求检查可以考虑给出的服务器资源的总百分比或请求中的模式。 还提供了包含日志文件,请求分析器和动态生成的拒绝列表的数据保护系统。 对服务器的请求被拦截并首先发送到数据保护系统。