43results about How to "Save CPU time" patented technology

This invention relates generally to a system for processing database queries, and more particularly to a method for generating high level language or machine code to implement query execution plans. The present invention provides a method for generating executable machine code for query execution plans, that is adaptive to dynamic runtime conditions, that is compiled just in time for execution and most importantly, that avoids the bounds checking, pointer indirection, materialization and other similar kinds of overhead that are typical in interpretive runtime execution engines.

The invention discloses an intelligent prompt method, an intelligent prompt module and an intelligent prompt system for search. According to the method disclosed by the invention, a server executes the following steps of distinguishing prefix words and suffix words by a tokenizer; carrying out synonymy expansion to form a prefix synonym list and a suffix synonym list; then traversing a hot word suffix tree to search hot words of prefix matches and/or suffix matches to obtain candidate words; and analyzing and calculating probability of each candidate word by historical search behaviors of a user. According to the method, a client executes the following steps of calculating load relevance of each candidate word; and calculating a click-on predicted value of each candidate word and then selecting the candidate words to display according to the click-on predicted values. In the invention, prompt words are obtained by matching between the prefix words and the suffix words, synonyms are combined, mass of search intentions of the user are integrated and the local relevance is combined, so that the prompt words are more approximate to the search intentions of the user.

An image reconstruction apparatus and related method. The amount of out- field-of view material for a CT scanner (IMA) with a given field of view (FoV) in a bore (B) is established. Based on the measurement, a hybrid-image reconstructor (RECONX) is configured to switch between different reconstruction algorithms.

The invention discloses a message read-write method, which comprises the steps: message is sent to a message queue from a producer, a message synchronous list is inquired according to the type of the message, if recording which corresponds to the type of the message exists in the message synchronous list, corresponding consumers are confirmed. When having corresponding consumers, one of the corresponding consumers is awaked, and the message is sent to the awaked consumer. The invention further discloses a message read-write device, which comprises a sending device, an inquiry device, an awaking device and a device which sends the message to the awaked consumer. The invention inquires the corresponding consumers in the message synchronous list through the producer according to the type of the message, and the method of awaking one of the consumers leads the consumers not to be awaked wastefully, thereby saving the CPU time.

The invention discloses a power system flow optimization method for effectively processing a complex electric power control device. The method adopts a node power injection method for modeling for the electric power control device, performs processing to the device and enables the device to be integrated to the traditional flow optimization by using a superposition principle, and effectively calculates the corrected matrixes of the Jacobian matrix and the Hessenberg matrix of the electric power control device to the objective function and the constraint condition by using an automatic differentiation technology. The method is efficient, flexible and feasible, keeps the high efficiency of the traditional flow optimization procedure, protects the existing code investment, can extend to other user-defined models and meets the requirements of analysis, running and planning of the modern power system.

This invention provides one method to index message transfer path in network, which comprises the following steps: dividing the transfer path into multiple sub paths according to the user interface and network relative information and setting the said user interface point as belonged second end punt; searching and determining each sub path initial point and end point minimum generation tree; re-tracking the minimum generation tree according to whether there is second end point to get sub path; connecting the said sub path to find out message transfer path.

The invention discloses a method for sending protocol messages with network nodes. The method includes the following steps; protocol information is generated and stored; the stored protocol information is encapsulated into a protocol message when required conditions are met; and the protocol message is transmitted. The invention can reduce CPU time taken for transmitting protocol messages and save processing resources.

The invention discloses a monitoring method and a system for MPEG video transmission quality, which relate to the video transmission quality monitoring field. The DF calculation flow of the method comprises the following steps: the monitoring node segments the video coding data payload of the IP data packet in the MPEG format and writes the segmented video coding data payload into an MR file; themonitoring node obtains two file segments with the same PID sequence number by traversing MR file, and calculates MR according to PCR and traversing offset of the two file segments;the monitoring nodecalculates the virtual buffers VBpre and VBpost before and after receiving the IP packet, and calculates the DF according to the VBpre and VBpost calculated in the specified time. The MLR calculationprocess includes: the monitoring node calculates the MLR according to the SEQ field or CC field of the IP packet. The invention can accurately and efficiently calculate the DF and MLR of the video stream, and monitor the transmission quality of the MPEG video through the DF and MLR.

A double focal spot X-ray tube (104) is used to acquire a set of two images PI_α, PI_β for a given gantry position from slightly different view positions. The stereo or binocular disparity (BD) of imaged structures is used to estimate the object depth in view direction, which in turn is used to discriminate between objects inside IO and outside EO the body. Respective structures are virtually removed from the images PI_α, PI_β.

The invention provides a TCP (transmission control protocol) message matching method based on Regular expression. The method comprises the following steps: reading all regular expression rules, and setting a matching rule list; sequentially matching TCP messages in a field-by-field mode according to a field sequence of the regular expression, namely traversing a corresponding matching rule list according to the current field content, removing matching rules which conflict with the current field content out of the matching rule list; if a corresponding matching rule is absent in the regular expression, the TCP message matching fails; if each field has a corresponding matching rule in the regular expression, the TCP message matching is successful, and the message is allowed to pass. The TCP message matching method has the advantages of high efficiency and high safety.

The invention provides a method for correcting low-layer tangent height of an infrared obscuration sensor based on non-absorption spectroscopy, which comprises the following steps: step 1, detecting first-level spectral data through GF-AIUS, the first-level spectral data comprising a plurality of first-level tangent heights and detection spectral data at a plurality of tangent heights; 2, analyzing the detection spectral data, and determining a low-layer tangent height range to be corrected; 3, through an HITRAN spectral absorption library, analyzing the position of a wave band which is not absorbed completely in a GF-AIUS effective observation spectrum section (750-4100 cm <-1>); 4, performing high-pass filtering on the spectrum of the full effective waveband, extracting spectral data ofa non-absorption waveband in a corresponding tangent height range, and calculating a scaling factor; 5, correcting the spectrum on the low-layer tangent height according to the scaling factor; and 6,conducting atmospheric correction on the low-layer cut height. The beneficial effects are that the rapid height cutting correction method is simpler, more convenient, quicker and more accurate.

An information retrieval system (IPS). The system comprises an input interface (IN) for receiving a query related to an object of interest. A concept mapper (CM) is configured to map the query to one or more associated concept entries of a hierarchic graph data structure (ONTO). The entries in said structure encode linguistic descriptors of components of a model (GM) for said object (OB). A metric-mapper (MM) is configured to map the query to one or more metric relationship descriptors. A geo-mapper (GEO) is configured to map said concept entries against the geometric model linked to the hierarchic graph data structure to obtain spatio-numerical data associated with said linguistic descriptors. A metric component (MTC) is configured to compute one or more metric or spatial relationships between said object components based on the spatio-numerical data and the one or more metric relationship descriptors.