摘要:
A method for generating a tree structure representation of a generalized graph structure for display includes the more important links in the representation. Usage parameters are referenced in generating the tree structure from the generalized graph structure. Frequency, recency, spacing of accesses, and path information are exemplary types of usage parameters. A breadth-first or depth-first traversal of the graph references usage parameters associated with each node or link. The usage parameters which are associated with each node are referenced in order to determine the visitation order. The visitation order is determined by visiting the highest used nodes or links first. A method of displaying the tree structure references the usage parameters to determine the positioning of the nodes in the layout of the tree structure. In a preferred embodiment, the root node is positioned in the center of the layout. In one example, sibling nodes are spread out on links which emanate radially about their parent. The highest-used sibling nodes can be placed farthest apart from each other so as to achieve optimal separation so that they have the most growth space. The lowest-used nodes are then placed in the remaining space between the high-usage nodes. In another example, sibling nodes are positioned at the same radius from the root node. Each leaf node in the hierarchy is assigned the same amount of angular space. The layout angle of each node is a function of the ranking of the node's usage parameter relative to its siblings. Derived usage parameters such as need probability, cocitation clustering, or functions of both node and link usages can alternatively be referenced.
摘要:
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.
摘要:
Methods for displaying results of a spreading activation algorithm and for defining an activation input vector for the spreading activation algorithm are disclosed. A planar disk tree is used to represent the generalized graph structure being modeled in a spreading activation algorithm. Activation bars on some or all nodes of the planar disk tree in the dimension perpendicular to the disk tree encode the final activation level resulting at the end of N iterations of the spreading activation algorithm. The number of nodes for which activation bars are displayed may be a predetermined number, a predetermine fraction of all nodes, or a determined by a predetermined activation level threshold. The final activation levels resulting from activation spread through more than one flow network corresponding to the same generalized graph are displayed as color encoded segments on the activation bars. Content, usage, topology, or recommendation flow networks may be used for spreading activation. The difference between spreading activation through different flow networks corresponding to the same generalized graph may be displayed by subtracting the resulting activation patterns from each network and displaying the difference. The spreading activation input vector is determined by continually measuring the dwell time that the user's cursor spends on a displayed node. Activation vectors at various intermediate steps of the N-step spreading activation algorithm are color encoded onto nodes of disk trees within time tubes. The activation input vector and the activation vectors resulting from all N steps are displayed in a time tube having N+1 planar disk trees. Alternatively, a periodic subset of all N activation vectors are displayed, or a subset showing planar disk trees representing large changes in activation levels or phase shifts are displayed while planar disk trees representing smaller changes in activation levels are not displayed.
摘要:
The method and apparatus of the present invention generates clusters of documents in a collection of linked documents based on co-citation analysis. The frequency linkage is determined for each document in the collection. In other words, the number of times each document is linked to by another document in the collection is determined. Further, a minimum frequency linkage (link frequency threshold) is specified based on a predetermined minimum frequency of document linkage. Additionally, a list of pairs of documents that are linked to by the same document is created so that each of the pairs of documents has a count of the number of times (co-citation frequency) that they are both linked to by another document. Pairs of linked documents are clustered using a suitable co-citation technique.
摘要:
Techniques are provided to improve communication through selective display of attention shifting display elements. A focus of attention is determined, display events located and attention shifting display elements displayed. The attention shifting display elements suggest display events as candidate foci of attention based on the display event, the display event location and the distance from the focus of attention. Attention shifting display elements are composed of attention directing portions, and optional attention attracting and informing portions. The attention directing portions help direct attention across distances and help attract attention to a point. The informing portions indicate availability of information associated with the display event occurring outside the focus of attention. The attention directing, attention attracting and informing portions of an attention shifting display element are associated with dynamic or periphery of attention based display attributes, static or focus of attention based display attributes or a combination of the two.
摘要:
A system and method for turning pages of a three-dimensional electronic book. A closed three-dimensional electronic book is modeled as at least one three-dimensional object having length, width and thickness dimensions. An opened three-dimensional book electronic is modeled as at least two three-dimensional objects having length, width and thickness dimensions, representing the left side of the opened book and the right side of the opened book. The page(s) to be turned is modeled as at least a three-dimensional object having length, width and thickness dimensions. The cross-section parallelogram having a width dimension and a thickness dimension based on the width and thickness dimensions of the closed three-dimensional electronic book, and a user-selected number of page(s) to be turned. Page turning of a three-dimensional electronic book is modeled as a dynamic animation showing the concurrent movement of three three-dimensional objects representing the left side pages block, the right side pages block, and the pages(s) to be turned.
摘要:
A Document Card (DocuCard) for storing documents and which is content revealing. The DocuCard is a transportable unit having a nonvolatile storage means for storing information in a digital form, a control processor for processing user initiated functions; an I/O port for interfacing to external devices for reading and writing digital information, and a user interface for allowing a user to directly interact with the DocuCard. The user interface on the DocuCard includes a display for displaying lists of functions and documents and information responsive to user invoked functions and a user input portion for allowing a user to traverse the lists of functions and documents, as well as information generated responsive to an invoked function. The control processor of the present invention include features for controlling access to documents stored therein.
摘要:
A system and method for annotating three-dimensional electronic documents. A user specifies, on a two-dimensional screen, a portion of a page of a three-dimensional document as a specific page area to be annotated. The annotation is displayed to the user with the transparent polygon technique, the vertex coloring technique and/or the texture coloring technique. These display techniques support highlighting annotations, free-form annotations, and text annotations.
摘要:
Methods and Systems for analyzing data of a user viewing a display of dynamic hypermedia pages through a browser including monitoring and storing location and time of the user's gaze as eyetracker data, processing the eyetracker data into fixation data, monitoring and storing content of the displayed pages into a memory, restoring the displayed pages from the memory, mapping the fixations data onto the restored pages to thereby identify elements-of-regard, and storing the identified elements-of-regard in an elements-of-regard database.
摘要:
Techniques provide for the dynamic display of a page-oriented information asset using an audio output mode. Pluralities of elements in the page-oriented information asset are determined based on chapters, sections, paragraphs, sentences, words and the like. The elements are rendered to an audio output mode. Optionally selectable representations of the elements are also determined and output using a 3-dimension-like rendering to a visual output mode. The 3-dimension-like rendering of the visual representations of the elements shows how the current element relates to the other elements and its location within the page-oriented information asset. The 3-dimension-like rendering provides visual orientation or context within the page-oriented information asset. The visual representations of the elements are optionally selectable as spatial context indicators providing direct navigation control to support reading, browsing and information retrieval tasks within the page-oriented information asset. Speech input is also optionally recognized as a direct navigation control.