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    • 3. 发明授权
    • Serving locally relevant advertisements
    • 提供当地相关广告
    • US07650431B2
    • 2010-01-19
    • US11467771
    • 2006-08-28
    • Lee WangWei-Ying MaXianfang WangXing XieYing Li
    • Lee WangWei-Ying MaXianfang WangXing XieYing Li
    • G06F15/16G06F3/00
    • G06Q30/02G06F17/30867G06F17/3087G06Q30/0267
    • A method and system for providing location-based advertisements to requesting devices is provided. An advertisement system aggregates advertisements by collecting advertisements from multiple advertisement sources, extracting data from the collected advertisements, and storing the extracted data in a common format. After aggregating the advertisements, the advertisement system transforms each advertisement into multiple advertisement formats that are specific to protocols supported by the various device types. When the advertisement system receives queries for advertisements, it identifies matching advertisements and ranks them based on a location. The advertisement system then selects an advertisement format that is appropriate for the requesting device.
    • 提供了一种用于向请求设备提供基于位置的广告的方法和系统。 广告系统通过从多个广告源收集广告来聚合广告,从收集到的广告中提取数据,并以通用格式存储提取的数据。 广告系统在聚合广告之后,将每个广告变换为由各种设备类型支持的协议特定的多种广告格式。 当广告系统接收到广告的查询时,它识别匹配的广告并且基于位置对它们进行排名。 然后,广告系统选择适合于请求设备的广告格式。
    • 7. 发明授权
    • Indexing large-scale GPS tracks
    • 索引大型GPS轨道
    • US08078394B2
    • 2011-12-13
    • US12037263
    • 2008-02-26
    • Longhao WangYu ZhengXing XieWei-Ying Ma
    • Longhao WangYu ZhengXing XieWei-Ying Ma
    • G06F17/00
    • G06F17/30551G06F17/30241G06F17/30327G06F17/30333
    • Described is a technology by which uploaded GPS data is indexed according to spatio-temporal relationships to facilitate efficient insertion and retrieval. The indexes may be converted to significantly smaller-sized data structures when new updates to that structure are not likely. GPS data is processed into a track of spatially-partitioned segments such that each segment has a cell. Each cell has an associated temporal index (a compressed start-end tree), into which data for that cell's segments are inserted. The temporal index may include an end time index that relates each segment's end time to a matching start time index. Given query input comprising a spatial predicate and a temporal predicate, tracks may be searched for by determining which spatial candidate cells may contain matching results. For each candidate cell, the search accesses the cell's associated temporal index to find any track or tracks that correspond to the temporal predicate.
    • 描述了一种根据时空关系对上传的GPS数据进行索引的技术,以便于有效的插入和检索。 当该结构的新更新不太可能时,索引可能会转换为显着更小的数据结构。 GPS数据被处理成空间分割的段的轨道,使得每个段具有一个单元。 每个单元都具有关联的时间索引(压缩的开始结束树),该单元格的段的数据被插入到该时间索引中。 时间索引可以包括将每个段的结束时间与匹配的开始时间索引相关联的结束时间索引。 给定包括空间谓词和时间谓词的查询输入,可以通过确定哪些空间候选小区可以包含匹配结果来搜索轨道。 对于每个候选小区,搜索访问小区的相关联的时间索引以找到与时间谓词相对应的任何轨道或​​轨道。
    • 9. 发明授权
    • Classifying functions of web blocks based on linguistic features
    • 基于语言特征分类网页功能
    • US07895148B2
    • 2011-02-22
    • US11742283
    • 2007-04-30
    • Wei-Ying MaXiangye XiaoXing Xie
    • Wei-Ying MaXiangye XiaoXing Xie
    • G06N5/00
    • G06Q10/10
    • A classification system trains a classifier to classify blocks of the web page into various classifications of the function of the block. The classification system trains a classifier using training web pages. To train a classifier, the classification system identifies the blocks of the training web pages, generates feature vectors for the blocks that include a linguistic feature, and inputs classification labels for each block. The classification system learns the coefficients of the classifier using any of a variety of machine learning techniques. The classification system can then use the classifier to classify blocks of web pages.
    • 分类系统训练分类器将网页的块分类为块的功能的各种分类。 分类系统使用训练网页训练分类器。 为了训练分类器,分类系统识别训练网页的块,为包括语言特征的块生成特征向量,并为每个块输入分类标签。 分类系统使用各种机器学习技术中的任何一种学习分类器的系数。 然后,分类系统可以使用分类器对网页块进行分类。