Abstract: Systems and methods directed to utilizing a first camera system to capture first images of one or more people in proximity to a tabletop; utilizing a second camera system to capture second images of one or more documents in proximity to the tabletop; generating a query for a database derived from people recognition conducted on the first images and text extraction on the second images; determining a first ranked list of people and a second ranked list of documents based on results of the query, the results based on a calculated ranked list of two-mode networks; and providing an interface on a display to access information about one or more people from the first ranked list of people and one or more documents from the second ranked list of documents.

Abstract: Systems and methods directed to utilizing a first camera system to capture first images of one or more people in proximity to a tabletop; utilizing a second camera system to capture second images of one or more documents in proximity to the tabletop; generating a query for a database derived from people recognition conducted on the first images and text extraction on the second images; determining a first ranked list of people and a second ranked list of documents based on results of the query, the results based on a calculated ranked list of two-mode networks; and providing an interface on a display to access information about one or more people from the first ranked list of people and one or more documents from the second ranked list of documents.

Abstract: System and method for graphical user authentication using compact collages of regions of images. Image corpus is constructed by selecting similar quality images and filtering to further homogenize image quality. Regions are detected within the images and scored according to similarity and neighborhood information. Regions with lower scores provide less information about other regions and are more secure secrets. During enrollment, user selects secret images; decoy images are chosen by the system accordingly. Regions from secret images are selected as secrets according to the scoring of regions and regions from decoy images are selected as decoys. A collage is formed with secrets and decoys. Compact rendering enhances security and is suitable for small displays of mobile devices. Several rounds of challenge, requiring identification of secrets, are presented to the user. User is authenticated if a certain number of correct identifications of secrets within a number of rounds are achieved.

Abstract: The present invention relates to a method to make effective use of display space. In an embodiment of the invention, given a heterogeneous set of images along with metadata or nearby text, similar images are recursively clustered into a k-tree using the k-means algorithm. In an embodiment of the invention, the invention is particularly useful for showing image search results on small mobile devices.

Abstract: Techniques are provided for determining relevant information from a document based on document structure. A document is selected and structural elements within the document having a dominance relationship are determined. A first location within the document is selected. The structural element surrounding the first location is determined and the surrounding and non-surrounding structural elements are characterized. Additional documents are associated with the first location in the surrounding structural element based on the surrounding structural element characterization and the non-surrounding structural element characterization. Techniques for dynamically determining annotations for images based on document structure are also provided.

Abstract: System and method for graphical user authentication using compact collages of regions of images. Image corpus is constructed by selecting similar quality images and filtering to further homogenize image quality. Regions are detected within the images and scored according to similarity and neighborhood information. Regions with lower scores provide less information about other regions and are more secure secrets. During enrollment, user selects secret images; decoy images are chosen by the system accordingly. Regions from secret images are selected as secrets according to the scoring of regions and regions from decoy images are selected as decoys. A collage is formed with secrets and decoys. Compact rendering enhances security and is suitable for small displays of mobile devices. Several rounds of challenge, requiring identification of secrets, are presented to the user. User is authenticated if a certain number of correct identifications of secrets within a number of rounds are achieved.

Abstract: The present invention relates to a method to make effective use of display space. In an embodiment of the invention, given a heterogeneous set of images along with metadata or nearby text, similar images are recursively clustered into a k-tree using the k-means algorithm. In an embodiment of the invention, the invention is particularly useful for showing image search results on small mobile devices.

Abstract: A digital document comprising a multi-channel interface is provided that achieves improved user interaction. The digital document includes a plurality of content channels providing primary content continuously in a looping manner and at least one supplementary channel on a single page. The supplementary channel is configured to provide supplementary content upon the occurrence of an event during playback of the document. Channel content may include video, text, images, web page content and audio. The media content can be managed in a spatial and temporal manner. In addition to media content, a channel may contain interactive regions in the form of hot spots and interactive mapping regions. An authoring tool is also provided for generating a multi-channel interactive digital document.

Abstract: A technique for teaching expository writing using a system that provides an objective reader centric microanalysis of the information a writer has conveyed to a virtual reader. The technique uses a theory of discourse analysis such as the Linguistic Discourse Model. Using the technique, a text is segmented into discrete units of meaning of the selected theoretic model. Student analysis and understanding are facilitated by the assignment of types to the discrete units of meaning and by linking the discrete units of meaning into a discourse tree under the constraints imposed by the selected theory. A virtual, or objective, reader centric summary of the information actually conveyed by the text is then compared to the writer designated important concepts and the results conveyed as feedback to the writer.

Abstract: A digital document comprising a multi-channel interface is provided that achieves improved user interaction. The digital document includes a plurality of content channels providing primary content continuously in a looping manner and at least one supplementary channel on a single page. The supplementary channel is configured to provide supplementary content upon the occurrence of an event during playback of the document. Channel content may include video, text, images, web page content and audio. The media content can be managed in a spatial and temporal manner. In addition to media content, a channel may contain interactive regions in the form of hot spots and interactive mapping regions. An authoring tool is also provided for generating a multi-channel interactive digital document.