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    • 11. 发明申请
    • DENSITY-BASED CO-LOCATION PATTERN DISCOVERY
    • 基于密度的同位素模式发现
    • US20090327342A1
    • 2009-12-31
    • US12145695
    • 2008-06-25
    • Xiangye XiaoXing XieWei-Ying Ma
    • Xiangye XiaoXing XieWei-Ying Ma
    • G06F17/30
    • G06F17/30241
    • Described is using density to efficiently mine co-location patterns, such as closely located businesses frequently found together in business listing databases, geographic search logs, and/or GPS-based data. A data space of such information is geographically partitioned into a grid of cells, with dense cells scanned first. A dynamic upper bound of prevalence measure of co-location patterns is maintained during the scanning process. If the current upper bound is smaller than a threshold, the scanning is stopped, thereby significantly reducing the computation cost for processing many cells, while providing suitable results.
    • 描述的是使用密度来有效地挖掘共同位置模式,例如在商业列表数据库,地理搜索日志和/或基于GPS的数据中经常发现的紧密定位的商业。 这种信息的数据空间在地理上被划分成一个单元格格,密集单元首先被扫描。 在扫描过程中保持了同位置模式的流行度测量的动态上限。 如果当前上限小于阈值,则停止扫描,从而显着降低了处理许多小区的计算成本,同时提供了合适的结果。
    • 14. 发明申请
    • CATEGORIZATION OF QUERIES
    • 查询的分类
    • US20080313142A1
    • 2008-12-18
    • US11763306
    • 2007-06-14
    • Chong WangXing XieZhisheng Li
    • Chong WangXing XieZhisheng Li
    • G06F17/30
    • G06F16/3322G06F16/353
    • Determination of a target category associated with a business listings query is provided. A query categorization system initially generates a mapping of internal categories of the query categorization system to target categories of a search engine service. The query categorization system receives a business listings query and identifies business listings that match the query. The query categorization system identifies an internal category associated with each matching business listing. The query categorization system then identifies from the mapping the target categories that correspond to the identified internal categories. The query categorization system selects one of the identified target categories as the category to be associated with the query.
    • 提供与业务列表查询相关联的目标类别的确定。 查询分类系统最初生成查询分类系统的内部类别到搜索引擎服务的目标类别的映射。 查询分类系统接收业务列表查询并识别与查询匹配的业务列表。 查询分类系统识别与每个匹配的业务列表相关联的内部类别。 然后,查询分类系统从映射中识别与所识别的内部类别相对应的目标类别。 查询分类系统将所识别的目标类别之一选择为与查询相关联的类别。
    • 20. 发明授权
    • Searching similar trajectories by locations
    • 按位置搜索类似的轨迹
    • US09593957B2
    • 2017-03-14
    • US12794538
    • 2010-06-04
    • Yu ZhengZaiben ChenXing Xie
    • Yu ZhengZaiben ChenXing Xie
    • G01C21/00G01C21/34G01C21/26G01C21/36
    • G01C21/3484G01C21/26G01C21/3667G06F17/11
    • Techniques for providing a trajectory route to multiple geographical locations of interest are described. This disclosure describes receiving global position system (GPS) logs associated with respective individual devices, each of the GPS logs including trajectories connecting a set of geographical locations previously visited by an individual of a respective individual device. A trajectory route service receives a request for a trajectory connecting a set of geographical locations of interest specified by a user. The trajectory route service calculates a proximal similarity between (1) the set of geographical locations of interest specified by the user, and (2) respective sets of geographical locations from the GPS logs. The trajectory route service constructs the requested trajectory with use of at least one of the trajectories from the GPS logs determined at least in part according to the calculated proximal similarities.
    • 描述了提供到感兴趣的多个地理位置的轨迹路线的技术。 本公开描述了接收与相应单独设备相关联的全球定位系统(GPS)日志,每个GPS日志包括连接先前由相应单独设备的个人访问的一组地理位置的轨迹。 轨迹路线服务接收连接由用户指定的一组感兴趣的地理位置的轨迹的请求。 轨迹路线服务计算(1)由用户指定的感兴趣的地理位置集合和(2)来自GPS日志的各组地理位置之间的近似相似度。 所述轨迹路线服务利用至少部分地根据所计算的近似相似度确定的GPS记录中的至少一个轨迹构建所请求的轨迹。