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    • 2. 发明授权
    • System and method for inferring user information need in hypermedia linked document collection
    • 用于推断用户信息的系统和方法需要超媒体链接的文档收集
    • US07017110B1
    • 2006-03-21
    • US09540063
    • 2000-03-31
    • Ed H. ChiPeter L. PirolliJames E. Pitkow
    • Ed H. ChiPeter L. PirolliJames E. Pitkow
    • G06F17/00
    • G06F17/30855G06F17/30867G06F17/30882
    • The present invention provides a system and method for inferring information need in a collection of hypermedia documents that is based on the observation that a user's hypertext link traversal decisions are typically based on the nature of that user's information need. The system identifies the hypermedia linkage structure among the plurality of documents in the collection. The documents include content items that may be relevant to a user information need. The system then accepts a user path item that represents a user's hypermedia link traversal history and applies a network flow model to the user path item in the hypermedia link information in order to create a document vector. The system also determines the distribution of the content items in the document collection, and then compares the document vector to the content item distribution in order to determine an inferred information need.
    • 本发明提供了一种用于在超媒体文档的集合中推断信息需求的系统和方法,其基于用户的超文本链接遍历决定通常基于该用户的信息需要的性质的观察。 系统识别集合中的多个文档之间的超媒体联动结构。 这些文件包括可能与用户信息需要相关的内容项。 然后,系统接受表示用户的超媒体链接遍历历史的用户路径项目,并将网络流模型应用于超媒体链接信息中的用户路径项目,以便创建文档向量。 系统还确定文档收集中的内容项目的分布,然后将文档向量与内容项目分布进行比较,以确定推断的信息需求。
    • 3. 发明授权
    • Method for locating digital information files
    • 定位数字信息文件的方法
    • US07013304B1
    • 2006-03-14
    • US09420916
    • 1999-10-20
    • Hinrich SchüetzeJames E. Pitkow
    • Hinrich SchüetzeJames E. Pitkow
    • G06F17/30
    • G06F17/30961G06F17/30876
    • Improved method, data structure and computer readable medium for searching for digital information files. Files referenced by URLs may be quickly located by finding a minimum unique prefix for the desired URL, breaking the prefix into substrings, and traversing a trie data structure to find indices to another trie data structure that will yield the physical location of the stored digital information file. A node data structure may be used to construct the trie data structures, and may be compressed to allow the tries to occupy less memory, thus allowing the tries to be maintained in memory and less access to storage devices. The result is faster retrieval times for digital information files.
    • 改进的方法,数据结构和用于搜索数字信息文件的计算机可读介质。 URL引用的文件可以通过找到所需URL的最小唯一前缀,将前缀分割成子字符串,以及遍历特里数据结构来找到索引到另一个将产生所存储的数字信息的物理位置的索引数据结构, 文件。 可以使用节点数据结构来构建特里数据结构,并且可以被压缩以允许尝试占用更少的存储器,从而允许尝试被维护在存储器中并且对存储设备的访问较少。 结果是数字信息文件的检索时间更快。
    • 7. 发明授权
    • Methods for visualizing transformations among related series of graphs
    • 在相关系列图中可视化转换的方法
    • US06369819B1
    • 2002-04-09
    • US09062513
    • 1998-04-17
    • James E. PitkowPeter L. T. PirolliEd H. ChiStuart K. CardJock D. MackinlayRich Gossweller
    • James E. PitkowPeter L. T. PirolliEd H. ChiStuart K. CardJock D. MackinlayRich Gossweller
    • G06T1120
    • G06F17/3089Y10S707/99933
    • A method for displaying in a coherent manner the changes over time of a web site's structure, usage, and content is disclosed. Time tubes are generated by a method of displaying a related series of graphs. Time tubes illustrate changes in a graph that undergoes one or more transformations from one state to another. The transformations are displayed using the length of the cylindrical tube, filling the length of the time tube with planar slices which represent the data at various stages of the transformations. Time tubes may encode several dimensions of the transformations simultaneously by altering the representation of size, color, and layout among the planar slices. Temporal transformations occur when web pages are added or deleted over time. Value-based transformations include node colors, which may be used to encode a specific page's usage parameter. Spatial transformations include the scaling of physical dimension as graphs expand or contract in size. The states of a graph at various times are represented as a series of related graphs. In a preferred embodiment, an inventory of all existing nodes is performed so as to generate a list of all nodes that have existed at any time. This inventory is used to produce a layout template in which each unique node is assigned a unique layout position. To produce each planar slice, the specific nodes which exist in the slice are placed at their respective positions assigned in the layout template. In another aspect, corresponding nodes in planar slices are linked, such as with translucent streamlines, in response to a user selecting a node in a planar slice by placing his cursor over the selected node, or to show clustering of two or more nodes in one planar slice into a single node in an adjacent planar slice.
    • 公开了一种以连贯的方式显示网站结构,使用和内容随时间变化的方法。 时间管是通过显示相关系列图的方法产生的。 时间管示出了经历从一个状态到另一个状态的一个或多个变换的图中的变化。 使用圆柱形管的长度显示变换,用表示在转化的各个阶段的数据的平面切片填充时间管的长度。 时间管可以通过改变平面切片之间的尺寸,颜色和布局的表示来同时编码变换的多个维度。 随着时间的推移,网页被添加或删除时,会发生时间变换。 基于值的变换包括节点颜色,可用于对特定页面的使用参数进行编码。 空间变换包括随着图形扩大或缩小大小的物理维度的缩放。 不同时间的图形状态表示为一系列相关图形。 在优选实施例中,执行所有现有节点的清单以便生成在任何时间已经存在的所有节点的列表。 此清单用于生成布局模板,其中每个唯一节点被分配唯一的布局位置。 为了产生每个平面切片,存在于切片中的特定节点被放置在分配在布局模板中的它们各自的位置。 在另一方面,响应于用户通过将其光标放置在所选择的节点上来选择平面切片中的节点,或者在一个平面切片中的两个或更多个节点的聚类,平面切片中的对应节点(例如具有半透明流线)被链接 平面切片分成相邻平面切片中的单个节点。
    • 10. 发明授权
    • System for categorizing documents in a linked collection of documents
    • 用于对文档的链接集合中的文档进行分类的系统
    • US5895470A
    • 1999-04-20
    • US842926
    • 1997-04-09
    • Peter L. PirolliJames E. PitkowRamana B. Rao
    • Peter L. PirolliJames E. PitkowRamana B. Rao
    • G06F17/30
    • G06F17/3069G06F17/30705G06F17/30864G06F17/30873Y10S707/917Y10S707/99934Y10S707/99935Y10S707/99936Y10S707/99942Y10S707/99943Y10S707/99945
    • A system for extracting and analyzing information from a collection of linked documents at a locality to enable categorization of documents and prediction of documents relevant to a focus document. The system obtains and analyzes topology, usage and path information from for a collection at a locality, e.g. a web locality on the world wide web. For categorization, document meta information is represented as document vectors. Predefined criteria is applied to the document vectors to create lists of "similar" types of documents. For relevance prediction, networks representing topology, usage path and text similarity amongst the documents in the collection are created. A spreading activation technique is applied to the networks starting at a focus document to predict the documents relevant to the focus document. Using category and relevance prediction information, tools can be built to enable a user to more efficiently traverse through the collection of linked documents.
    • 一种用于从一个地点的链接文档集合中提取和分析信息的系统,以便对文档进行分类和与焦点文档相关的文档的预测。 该系统从一个地点的集合中获取和分析拓扑,使用和路径信息,例如。 万维网上的网站。 对于分类,文档元信息被表示为文档向量。 将预定义的标准应用于文档向量以创建“类似”类型的文档的列表。 对于相关性预测,创建代表集合中的文档之间的拓扑,使用路径和文本相似性的网络。 传播激活技术应用于从焦点文档开始的网络,以预测与焦点文档相关的文档。 使用类别和相关性预测信息,可以构建工具以使用户能够更有效地遍历链接文档的集合。