Novell, Inc.

Del Jensen

Stephen R Carter

Glenn Ricart

Edwards E Reed

Methods, signals, devices and systems are provided for matching tasks with processing units. A region within a multi-faceted task space is allocated to a processing unit. A point in the multi-faceted task space is assigned to a task. The task is then associated with the processing unit if the region allocated to the processing unit is close to the point assigned to the task. The region allocated to a processing unit may be changed. If no assigned point for a task is sufficiently close to any allocated processing unit region, the task is suspended. Overlapping regions may be assigned to different processing units. In some implementations, the union of the allocated regions covers the task space, while in others it does not. Regions may also be allocated to wait conditions and one or more dimensions of a region may be allocated to conventional processor allocators.

Task distribution

Methods and systems are provided for identifying and characterizing boundaries in digital images and other digital data sets. At least two points within a digital image are selected. Clusters of sample points around the points are chosen. A pixel value histogram is generated for each sample point cluster. These histograms define frequency functions. The distance between the frequency functions, called a &ldquo;density distance&rdquo; is calculated and analyzed. The nature of the density distance is then used to determine if the two areas are relatively uniform, or if they indicate a presence of a boundary. To further refine the procedure, the method may be applied iteratively by modifying cluster variances, sizes, and distributions, and then reanalyzing the frequency functions generated.

Boundary identification and characterization through density differencing

Methods and systems are provided for locating objects within a content stream, by transforming prospective objects and evaluating the results to identify meaningful semantic values. Transformation is accomplished using various contour transformations, possibly in combination with other tools and techniques. The semantic values produced by contour transformation can be efficiently searched and classified against a dictionary of archetypes to identify objects and object features in the content stream. Contour transformations may be scale-invariant and/or rotationally invariant or otherwise symmetric, so that distinctions between content objects based on their scale or orientation are avoided.

Searching and filtering content streams using contour transformations

Methods, signals, devices, and systems are provided for matching tasks with processing units. A region within a multi-faceted task space is allocated to a processing unit. A point in the multi-faceted task space is assigned to a task. The task is then associated with the processing unit if the region allocated to the processing unit is close to the point assigned to the task. The region allocated to a processing unit may be changed. If no assigned point for a task is sufficiently close to any allocated processing unit region, the task is suspended. Overlapping regions may be assigned to different processing units. In some implementations, the union of the allocated regions covers the task space, while in others it does not. Regions may also be allocated to wait conditions and one or more dimensions of a region may be allocated to conventional processor allocators.

Methods, systems, signals, and devices are provided for managing and using topology information in a network. A topology information manager keeps fragments of network topology and provides access to entire fragments or to fragment summaries in response to authenticated requests. An authenticated path selector uses topology information from the manager to select message routes. The path selector may use summaries of hidden network paths to determine whether the hidden path is desirable, without having access to all topological information about the hidden path. Messages may be forwarded over hidden paths by the manager without disclosing more than the summary information to the message provider.

Secure distribution and use of weighted network topology information

Methods and systems are provided for producing a rotated textured tile on a display device. An unrotated textured tile is identified. A supertile that contains repeated adjacent copies of at least part of the unrotated tile is produced. The supertile is rotated through an arbitrary angle. A period in X and a period in Y are selected. To select a period, a pixel-wide window is moved along the axis, and pixels in the window are measured against pixels in a reference location until a match of acceptable accuracy is found. If no match is found then one or more parameters are perturbed and the sliding-comparison process repeats.

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Orem, UT, United States of America

Del Jensen