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199results about How to "Improve discovery efficiency" patented technology

Binary chop tracking method of shortest paths in network map

InactiveCN101788999AHigh speedOvercoming reverse order search and trace thinkingSpecial data processing applicationsAlgorithmStep number
The invention discloses a binary chop tracking method of shortest paths in a network map, which is characterized in that the method comprises the following steps: extracting the step number of the shortest paths from a source node to a gathered node according to a shortest path step number matrix; reducing and separating the step number by half into the front step number and the back step number; searching nodes with the step number equal to the front step number in a source node row vector of the shortest path step number matrix, using the nodes as a front step number node set, searching nodes with the step number equal to the back step number in a gathered node column vector of the shortest path step number matrix, using the nodes as a back step number node set; taking an intersection set of the front step number node set and the back step number node set as middle nodes; using each node in the intersection as the reference; using the method for solving the middle node of the source node and the node, and the middle node of the node and the gathered node until the shortest path step number between the solved nodes is 1; and sequentially inserting the middle nodes into corresponding positions to obtain all shortest paths from the source node to the gathered node. The method of the invention is used for finding all shortest paths between two points, and the invention can provide various schemes for the preferential path selection of the network map abstracted from actual data.
Owner:ANHUI UNIVERSITY

Method for constructing core symptom-differentiation relation based on traditional Chinese medicine knowledge graph

The invention discloses a method for constructing a core symptom-differentiation relation based on a traditional Chinese medicine knowledge graph. The method comprises the steps of mining and extracting a case set formed of four diagnostic methods information and differentiation factor knowledge elements of medical records of traditional Chinese medicine and auxiliary knowledge elements such as a theory, a rule, a prescription and a drug from literature of traditional Chinese medicine and a disease diagnosis database, establishing a sample relation for each case corresponding to the four diagnostic methods information and differentiation factors through a deep learner; then converting the sample relation into a directed-weighted complex network; abstracting a knowledge element inference relation included by the sample corresponding to each symptom into a directed edge set; and outputting a visual topological graph in a manner of a knowledge map and a knowledge inference network. According to the method, effective information carried by traditional Chinese medicine cases can be fully utilized, feature extraction and self-learning is realized to the maximum extent by use of a deep neural network, the construction of the visual topological graph for the traditional Chinese medicine symptoms and differentiation factors greatly improves the finding efficiency of potential knowledge and lays a foundation for intelligent diagnostic aid decision making of traditional Chinese medicine and recommendation of medicare guiding service.
Owner:GUANGDONG HOSPITAL OF TRADITIONAL CHINESE MEDICINE

Universal construction method for protein-targeting chimeric molecule compound

The invention discloses a universal construction method for a protein-targeting chimeric molecule compound. The objective of the invention is to provide a method for adjusting the level of proteins by degrading the proteins through targeted ubiquitination. The construction method mainly comprises the following steps: 1) locating and analyzing a three-dimensional structure of a target protein and predicting active sites; 2) selecting a compound database; 3) virtually screening ligand compounds having high degrees of adaption to the target protein by using a computer; 4) acquiring the screened ligand compounds and screening an optimal ligand compound of the target protein through detection of interaction between micromolecules and the proteins; 5) constructing a protein-targeting chimeric molecule compound composed of the optimal ligand compound of the target protein, ubiquitin ligase E3 identification ligand and Linker connecting the optimal ligand compound of the target protein to the ubiquitin ligase E3 identification ligand by using a combination manner simulated by the computer; and 6) chemically synthesizing the protein-targeting chimeric molecule compound. With the method provided by the invention, the protein-targeting chimeric molecule compound can be rapidly and highly efficiently prepared, and specific degradation of intracellular target proteins is realized.
Owner:THE FIRST AFFILIATED HOSPITAL OF SUN YAT SEN UNIV

Web service discovery method based on memorization service cluster mapping catalogue

The invention discloses a web service discovery method based on a memorization service cluster mapping catalogue. According to the web service discovery method, services with the same or similar function are gathered to build a service cluster, the services in the service cluster are classified according to the service cluster mapping catalogue, and the purpose that the services in the service cluster change from the unordered state to the order state is achieved. According to a service cluster parameter matrix, services, with the catalogue items corresponding to a service chain list, in the mapping catalogue are sequenced, a virtual service group is provided, and a memorization service chain list is further provided. According to the organization structure of the memorization service cluster mapping catalogue, a new service cluster parameter matrix corresponding to the memorization service cluster mapping catalogue is provided; on the basis of the memorization service cluster mapping catalogue and the new service cluster parameter matrix corresponding to the memorization service cluster mapping catalogue, the semantic Web service discovery method based on the memorization service cluster mapping catalogue is provided, and therefore after a specific service cluster is positioned, a Web service meeting the requirement can be returned more quickly.
Owner:SHANDONG UNIV OF SCI & TECH

A program path sensitive grey box testing method and device

ActiveCN109902024AIncrease trigger rateImprove discovery efficiencySoftware testing/debuggingGray box testingData set
The invention belongs to the technical field of software testing. The invention particularly relates to a program path sensitive grey box testing method and device. The method comprises the steps thatin the offline training stage, vulnerability mode learning is conducted on a sample data set through a deep neural network, a classifier of a program execution path is obtained, and a sample data setpackage comprises vulnerability program path sample data and vulnerability-free program path sample data; and in an online test stage, the classifier is integrated into a fuzzy test tool to guide a seed file to perform a selection test, seed input triggering a vulnerability path is preferentially selected to perform the test, endowing the test with a plurality of variation energies to execute corresponding variation times, and performing cyclic execution until interruption. The method fills up the blank of vulnerability path sample influence analysis, does not depend on a complex dynamic analysis technology, does not bring about a large overhead problem, can be effectively combined with other grey box test technologies, improves vulnerability discovery efficiency, can be directly suitablefor a binary program, does not depend on a source code, and is high in applicability.
Owner:PLA STRATEGIC SUPPORT FORCE INFORMATION ENG UNIV PLA SSF IEU

Directional center-less ad-hoc network neighbor discovery method for reducing collision probability

The present invention discloses a directional center-less ad-hoc network neighbor discovery method for reducing collision probability. The method comprises the following steps: determining a beam scanning period and scanning mode according to the number of antenna beams of a node; and randomly determining a transceiving status of each neighbor discovery beam scanning period, so as to classify the nodes as a transmitting node, a receiving node or a silent node. A transmitting node broadcasts a time slot table of a beam in different beam directions. A receiving node performs time slot allocation according to a received time slot table in a beam direction, and updates a local time slot table. A silent node neither transmits nor receives a signal within an entire beam scanning period. The method disclosed by the present invention can greatly reduce the collision probability in a directional center-less ad-hoc network when multiple nodes perform accessing in a same beam direction, and can effectively solve the problem that multiple communication links working in a same beam direction interfere with each other, thereby reducing network establishment time and improving network accessing and working efficiency.
Owner:NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP

Cell discovery method and apparatus based on NB-IoT system

ActiveCN106851783AReduce in quantityReduce the number of cross-correlation operationsAssess restrictionMutual correlationAlgorithm
The embodiment of the invention provides a cell discovery method and apparatus based on an NB-IoT system. The method comprises the following steps: performing mutual correlation operation on narrowband sub-synchronous signals NSSS in received signals with q sequences in local signals to obtain first correlation values, determining a q value corresponding to the maximum first correlation value as a target q value, and determining a cell number range through the target q value; traversing each cell number within the cell number range, correspondingly generating a u value for each cell number, separately substituting the generated u values into a narrowband sub-synchronous signal NSSS generation formula to generate the narrowband sub-synchronous signals NSSS; performing mutual correlation operation on the generated narrowband sub-synchronous signals NSSS and the narrowband sub-synchronous signals NSSS in the received signals to obtain second correlation values, determining the u value corresponding to the maximum second correlation value as a target u value; and calculating the cell number corresponding to a base station that sends the received signals according to the target q value and the target u value. The scheme can improve the cell discovery efficiency.
Owner:BEIJING UNIV OF POSTS & TELECOMM

Service combining and replacing method based on service cluster

The invention discloses a service combining and replacing method based on a service cluster. The service cluster is constructed with an existing service clustering method, and a formal description method of services and the service cluster is put forward based on a Petri network; and the input and output parameters of the services are represented in an abstract way, and the input and output parameters of the services are described through a parameter matrix. Through adoption of a service matching method in the invention, universality and individuality can be fully realized among the services in the service cluster, and the service discovery and combining efficiencies are increased by narrowing of a service discovery range. A Web service combining and replacing method is provided through improvements on a service cluster model. Parallel combination and serial combination of the services in the service cluster are described respectively, and rapid service combination is realized in the service cluster, so that efficient service combination and replacement are realized. Through adoption of the service replacing method in the invention, single service replacement in the service cluster can be realized, and service combination and replacement in the service cluster can be realized.
Owner:SHANDONG UNIV OF SCI & TECH

Leaky cable/antenna feeder real-time monitoring apparatus and working method thereof

The invention provides a leaky cable /antenna feeder real-time monitoring apparatus and a working method thereof. The real-time monitoring apparatus is composed of a power supply module, an SPDT module, an electromagnetic wave synthesis circuit, an electromagnetic wave receiving and detection circuit, a display module and a control circuit. An electromagnetic wave is generated by the electromagnetic wave synthesis circuit; an output port is selected by a dual-channel radio frequency port of the SPDT module so as to output an electromagnetic wave signal to an antenna feeder or a leaky cable; when the electromagnetic wave runs into a fault point and is reflected the electromagnetic wave receiving and detection circuit receives the electromagnetic wave, detects the signal intensity and sends data to the control circuit; and the control circuit determines a fault level and fault position according to the detected data and sends the determination information to an alarm display lamp, and the fault position and the fault level are sent to a network management center by a network cable interface so as to display the information for the staff. According to the invention, the following beneficial effects are as follows: a fault point positioning function, a real-time on-line monitoring function, a dual-channel monitoring function and a function of adjustability of frequency for monitoring are realized, thereby providing convenience for fault monitoring of a leaky cable or an antenna feeder.
Owner:NANJING TICOM TECH
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