摘要:
A system and method for generating an occupancy model are disclosed. The model is learned using occupancy data for zones, each zone including cells, which are occupied or not at a given time, each with a sensor, which may be reporting or not. The data provides an observed occupancy corresponding to a number of cells in the respective zone which have reporting sensors, and the number of those sensors which are reporting that the respective cell is occupied. The occupancy model is based on a demand model and a sensor noise model which accounts for behavior of the non-reporting sensors. The noise model assumes that the probability of a sensor being in the reporting state is dependent on whether the respective cell is occupied or not. The model can fit the occupancy data better than one which assumes that non-reporting cells are occupied with the same frequency as reporting ones.
摘要:
An events analysis method comprises: optimizing respective to a set of training data a set of branching transition likelihood parameters associating parent events of type k with child events of type k′ in branching processes; inferring a most probable branching process for a set of input data comprising events based on the optimized set of branching transition likelihood parameters; and identifying rare or unusual events of the set of input data based on the inferred most probable branching process. An events analysis apparatus includes a probabilistic branching process learning engine configured to optimize the set of branching transition likelihood parameters, and a probabilistic branching process inference engine configured to infer the most probable branching process.
摘要:
A system and method for providing mixed-initiative curation of information within a shared repository is provided. Static content is retrieved from a shared storage associated with a shared information management client. Dynamic content including one or more information items satisfying a similarity threshold with the static content is identified as similar dynamic content. An interactive visualization is generated within the shared information management client from information extracted from the static content and the similar dynamic content. The interactive visualization of the information is linked with the static content and the similar dynamic content. A selection of the information of the similar dynamic content is received from within the visualization. The static content in the shared storage is updated with the similar dynamic content linked with the selected information.
摘要:
Disclose are embodiments for selecting an advantageous, feasible and suitable location for placing a selected printing device within a space. A mathematical formula identifies a most advantageous location for placing the selected printing device. Next, successive contour regions surrounding this most advantageous location are defined such that any inner contour region is considered more advantageous than any outer contour region. A mark representing the most advantageous location and contour lines indicating the successive contour regions are plotted onto a floor plan of the space. The edited floor plan is then evaluated (e.g., either visually by a user or automatically) to determine whether the mark overlaps any fixed shapes and/or restricted-use areas. If the mark overlaps a fixed shape or restricted-use area, a different location can be selected that is within a closest possible contour region without overlapping any other fixed shapes or restricted-use areas.
摘要:
In a method for monitoring hardware devices of the hardware devices network to detect failures, past logged jobs are analyzed to determine a pattern of past usage of hardware devices by users of the hardware devices network. A failure of a hardware device is inferred based on a deviation in usage of the hardware devices from the pattern of past usage. In some embodiments, a state model is constructed that assigns one of two or more available operational states to each hardware device of the hardware devices network based on a recent load of jobs logged to the hardware device and a stored history of logged jobs indicative of typical loading of the hardware devices. One or more failing hardware devices are identified based on the assigned operational states.
摘要:
A method for controlling a printer in a networked environment utilizes printer usage statistics and document features to determine whether to print a document or portion of a document. The networked environment includes printers, devices permitting the submittal of print job requests, a print server, and a document repository. The method includes receiving a job request to print a document from a device on the network and obtaining the document in digital form from the document repository or placing the document in digital form. Document and page specific information are extracted from the document. It is then determined whether printing of the document or a portion of the document is necessary based on analysis of the document and page specific information.
摘要:
In rejection sampling of a function or distribution p over a space X, a proposal distribution q(n) is refined responsive to rejection of a sample x*εX to generate a refined proposal distribution q(n+1) selected to satisfy the criteria p(x)≦q(n+1)(x)≦q(n)(x) and q(n+1)(x*)
摘要:
In a recommender method, Bayesian Matrix Factorization (BMF) is performed on a matrix having user and item dimensions and matrix elements containing user ratings for items made by users in order to train a probabilistic collaborative filtering model. A recommendation is generated for a user using the probabilistic collaborative filtering model. The recommendation may comprise a predicted item rating, or an identification of one or more recommended items. The recommender method is suitably performed by an electronic data processing device. The BMF may employ non-Gaussian priors, such as Student-t priors. The BMF may additionally or alternatively employ a heteroscedastic noise model comprising priors that include (1) a row dependent variance component that depends upon the matrix row and (2) a column dependent variance component that depends upon the matrix column.
摘要:
A system and method for providing mixed-initiative curation of information within a shared repository is provided. Static content is retrieved from a shared storage associated with a shared information management client. Dynamic content including one or more information items satisfying a similarity threshold with the static content is identified as similar dynamic content. An interactive visualization is generated within the shared information management client from information extracted from the static content and the similar dynamic content. The interactive visualization of the information is linked with the static content and the similar dynamic content. A selection of the information of the similar dynamic content is received from within the visualization. The static content in the shared storage is updated with the similar dynamic content linked with the selected information.
摘要:
A method of maximizing a concave log-likelihood function comprises: selecting a pair of parameters from a plurality of adjustable parameters of a concave log-likelihood function; maximizing a value of the concave log-likelihood function respective to an adjustment value to generate an optimal adjustment value, wherein the value of one member of the selected pair of parameters is increased by the adjustment value and the value of the other member of the selected pair of parameters is decreased by the adjustment value; updating values of the plurality of adjustable parameters by increasing the value of the one member of the selected pair of parameters by the optimized adjustment value and decreasing the value of the other member of the selected pair of parameters by the optimized adjustment value; and repeating the selecting, maximizing, and updating for different pairs of parameters to identify optimized values of the plurality of adjustable parameters.