摘要:
A method for diagnosing depression includes providing surface-enhanced laser desorption/ionisation mass spectrometric (SELDI-MS) data of a plurality of proteins, said data obtained from a patient and comprising a plurality of peak values, and analysing said peak values with an alternating decision tree comprising a set of tests of said data peaks values and associated prediction values, wherein said data is predictive of depression if a sum of the prediction values of said tree is greater than 1.0.
摘要:
A method and computer program product for reducing noise in diffusion tensor imaging data utilizes an optimization function performed on voxels or pixels of the image. The optimization function includes a neighborhood relevance component that considers diffusion tensor matrices from neighboring pixels or voxels. The neighborhood relevance component is modeled as a Markov Random Field. The method includes an iteration that seeks convergence of an Expectation Maximization algorithm performed on the diffusion tensor matrices.
摘要:
A method for authoring video documents includes the steps of inputting video data to be processed, segmenting the video data into shots by identifying breaks between the shots, subdividing the shots into subshots using motion analysis to provide location information for motions of objects of interest, describing boundaries for the objects of interest in the video data such that the objects of interest are represented by the boundaries in the shots and creating an anchorable information unit file based on the boundaries of the objects of interest such that objects of interest are used to identify portions of the video data. A system is also included.
摘要:
A statistical technique is used to estimate the status of switching devices (such as circuit breakers, isolator switches and fuses) in distribution networks, using scares (i.e., limited or non-redundant) measurements. Using expected values of power consumption, and their variance, the confidence level of identifying the correct topology, or the current status of switching devices, is calculated using any given configuration of real time measurements. Different topologies are then compared in order to select the most likely topology at the prevailing time. The measurements are assumed as normally distributed random variables, and the maximum likelihood principle or a support vector machine is applied.
摘要:
A method of approximating a solution of a stochastic state estimation (SSE) model of an electric grid, includes choosing (70) starting anchor points in an SSE model of an electric grid, relaxing (71) constraints of an SSE objective function to solve for a feasible solution of the SSE model, calculating (72) updated dual variables and infeasibility reduction directions from the feasible solution, generating (73) a linear cut for the chosen starting anchor points, choosing (74) a step size toward the reduction directions, and updating (75) the anchor points through branching by making the chosen step, wherein each anchor point defines a rectangle that at least partially covers a feasible solution set of the SSE model and the set of rectangles covering the feasible solution set of the SSE model define an approximate solution of the SSE model of said electric grid.
摘要:
According to an aspect of the invention, there is provided a method for optimizing a cost of electric power generation in a smart site energy management model, including providing a cost function that models a smart building-grid energy system of a plurality of buildings on a site interconnected with electric power grid energy resources and constraints due to a building model, an electric grid model, and a building-grid interface model, where decision variables for each of the building model, the electric grid model, and the building-grid interface model are box-constrained, and minimizing the cost function subject to the building model constraints, the electric grid model constraints, and building-grid interface model constraints.
摘要:
A method of compressed sensing imaging includes acquiring a sparse digital image b, said image comprising a plurality of intensities corresponding to an I-dimensional grid of points, initializing points (x(k), y(k)), wherein x(k) is an element of a first expanded image x defined by b=RΦ−1 x, wherein R is a Fourier transform matrix, Φ is a wavelet transform matrix, y(k) is a point in ∂ ( ∑ i = 1 l ( ∇ i Φ - 1 x ( k ) ) 2 ) 1 / 2 , ∇i is a forward finite difference operator for a ith coordinate, and k is an iteration counter; calculating a first auxiliary variable s(k) from x ( k ) - τ 1 ( αΦ ∑ n L n * y n ( k ) + Φ R * ( R Φ - 1 x ( k ) - b ) ) , wherein τ1,α are predetermined positive scalar constants, the sum is over all points n in x, and L* is an adjoint of operator L=(∇1, . . . , ∇I); calculating a second auxiliary variable tn(k) from yn(k)+τ2LnΦ−1x(k), wherein τ2 is a predetermined positive scalar constant; updating x(k+1) from sign(s(k))max{0,|s(k)|−τ1β}, wherein β is a predetermined positive scalar constant; and updating yn(k+1) from min { 1 τ 2 , t n ( k ) 2 } t n ( k ) t n ( k ) 2 .
摘要:
A computer system for integrating medical information using the Unified Medical Language System (UMLS) as a taxonomy of medical terms includes a learner module for learning from training data concept classifiers for a source ontology and a target ontology, a mapper module for generating associations between source and target ontology classifiers using the UMLS, an annotator module for extracting knowledge from test data using source and target ontology classifiers and UMLS, and a feedback module for ranking associations according to a level or certainty, and presenting those associations that fall below a predefined level of certainty to a user for correction.
摘要:
A method of generating a searchable database system for storing and querying Extensible Markup Language (XML) documents is disclosed. A Document Type Description (DTD) associated with one or more XML documents is analyzed to determine a scope of XML documents defined by the DTD. A first set of elements associated with the DTD is identified. The first set of elements is mapped to a relational database. A second set of elements associated with the DTD to be stored in an XML database is identified. A collection of classes is created such that each class defines an object schema. The classes are mapped to a set of corresponding tables, and foreign and primary keys associated with the corresponding tables are identified.
摘要:
A learning management system includes a content storage unit for storing learning content, a user modeling unit in signal communication with the content storage unit and having a user model, a personalization unit in signal communication with the content storage unit for personalizing the learning content stored in the content storage unit in response to the user model, and a user interface in signal communication with the content storage unit for enabling a user to interact with the learning management system, wherein the learning management system delivers content responsive to user interaction with the learning management system.