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37 results about "Cooperative group" patented technology

Academic core author excavation and related information extraction method and system based on complex network

The invention belongs to the field of data mining, aims to solve the problem of excavating core authors in an academic field and intelligently extracting related information of the authors, and provides an improved academic core author excavation and information extraction method and system based on a core node discovery algorithm in the social network analysis technology. The method combines the vertical search technology, the social network analysis technology and the text analysis technology, and can find the core authors or groups of the academic field in the mass of information to further obtain related information of the authors. The method uses the vertical search technology to collect open source literature data, uses the bibliometric technology and the complex network analysis technology to analyze the importance of a variety of social entities in the data, and utilizes a community discovery algorithm to perform entity clustering based on the closeness degree of relationships between entities to find out an academic community. Users can find the core authors or an institution according to an entity importance ranking, and find the leadership team according to published articles amount distribution of cooperative groups.
Owner:INST OF AUTOMATION CHINESE ACAD OF SCI

Stochastic access method based on user side cooperative grouping in collaboration cellular network

A random access method based on the cooperation and the grouping of user ends of a collaborative cellular network comprises the following steps: the user end is determined as a cooperation group leader; each user end is accommodated by the cooperation group leader into a group to form a corresponding cooperation group; and each user end in the cooperation group sends a corresponding signal of request for base station access to a base station in an established cooperation mode. When the base station conducts the initial allocation of resources according to the detected signal of request for base station access, each user end in the cooperation group occupies a resource block initially allocated by the base station in sequence, and sends a concrete message of request for access to the base station independently. At last, the base station dispatches the resource blocks again to satisfy the actual operational requirements of each user end. Through the cooperation and the grouping of each user end during the random access process, the method can reduce the probability of collision and conflict between the user ends and reduce the energy consumption thereof, thus further improving the random access performance of the system.
Owner:SHANGHAI RES CENT FOR WIRELESS COMM

Control method and control terminal of aircraft

The embodiment of the invention discloses a control method of an aircraft. The method is applied to at least one aircraft cooperative group which comprises a control terminal, a master unit and at least one slave unit. The method comprises the following steps: when the aircraft is in a flying state, receiving current flying information transmitted by the master unit and the slave units; determining a flying error value of each slave unit according to the current flying information of the master unit and the slave units; generating a first control instruction of the master unit according to the current flying information of the master unit, and generating a second control instruction of the slave units according to the current flying information and the flying error value of the slave units; transmitting the first control instruction to the master unit, and transmitting the second control instruction to the slave units. The embodiment of the invention further provides the control terminal. One control terminal can be used for simultaneously controlling a plurality of aircrafts to fly under a condition of no mutual collision, to guarantee the safety during flying and keep a formation during flying; the control terminal is favorable for letting an operator control the aircraft.
Owner:TENCENT TECH (SHENZHEN) CO LTD

Method for generating test data covering parallel program paths based on coevolution

The invention provides a method for generating test data covering parallel program paths based on coevolution, and aims to provide a method for automatically and efficiently generating test data covering parallel program objective paths. The method includes the following specific steps that firstly, a mathematical model of a test data generation problem is built, and a problem for generating the test data covering the parallel program paths is modeled into a single-object optimization problem; secondly, a coevolution genetic algorithm is designed to solve the model. According to the method, groups are divided into a plurality of sub groups and a cooperative team group according to the correlation of course paths and program input components. Each sub group is used for independently optimizing a part of input components relevant to one certain course path. After the sub groups are evolved into a certain period, excellent individuals of the sub groups are combined to form an initial individual of the cooperative team group so as to be used for optimizing complete program input. After the cooperative group is evolved into a certain period, the excellent individuals are returned to the sub groups. Through alternate coevolution of the cooperative team group and the sub groups, the expected test data are generated.
Owner:CHINA UNIV OF MINING & TECH

Neighbor discovery method based on node cooperation

The invention discloses a neighbor discovery method based on node cooperation. The invention designs a neighbor discovery method based on node cooperation according to the characteristics of a low-duty-ratio wireless sensor network. According to the method, nodes within a specific distance threshold value are regarded as a cooperative group based on the receiving intensity of signals, and awakening time slots of all the nodes in the group are replanned, so that the nodes in the group are jointly responsible for an awakening task of an awakening time table of the cooperative group. Meanwhile, the optimal group scale capable of maximizing the energy efficiency of the cooperative group is researched, factors which cannot be ignored on the energy efficiency of the cooperative group are quantitatively analyzed, and the optimal values of all parameters which enable the energy efficiency of the cooperative group to be optimal are derived. Correspondingly, a set of cooperative group managementmechanism is designed in the method, and the whole life cycle of the cooperative group comprises group establishment, group information sharing, group cooperation and group dissociation. According tothe neighbor discovery method, the integrity of the node awakening time table is ensured, and meanwhile, the awakening time slot with low energy efficiency can be effectively reduced.
Owner:SICHUAN UNIV

Aircraft control method and control terminal

The embodiment of the invention discloses a control method of an aircraft. The method is applied to at least one aircraft cooperative group which comprises a control terminal, a master unit and at least one slave unit. The method comprises the following steps: when the aircraft is in a flying state, receiving current flying information transmitted by the master unit and the slave units; determining a flying error value of each slave unit according to the current flying information of the master unit and the slave units; generating a first control instruction of the master unit according to the current flying information of the master unit, and generating a second control instruction of the slave units according to the current flying information and the flying error value of the slave units; transmitting the first control instruction to the master unit, and transmitting the second control instruction to the slave units. The embodiment of the invention further provides the control terminal. One control terminal can be used for simultaneously controlling a plurality of aircrafts to fly under a condition of no mutual collision, to guarantee the safety during flying and keep a formation during flying; the control terminal is favorable for letting an operator control the aircraft.
Owner:TENCENT TECH (SHENZHEN) CO LTD

Stochastic access method based on user side cooperative grouping in collaboration cellular network

A random access method based on the cooperation and the grouping of user ends of a collaborative cellular network comprises the following steps: the user end is determined as a cooperation group leader; each user end is accommodated by the cooperation group leader into a group to form a corresponding cooperation group; and each user end in the cooperation group sends a corresponding signal of request for base station access to a base station in an established cooperation mode. When the base station conducts the initial allocation of resources according to the detected signal of request for base station access, each user end in the cooperation group occupies a resource block initially allocated by the base station in sequence, and sends a concrete message of request for access to the base station independently. At last, the base station dispatches the resource blocks again to satisfy the actual operational requirements of each user end. Through the cooperation and the grouping of each user end during the random access process, the method can reduce the probability of collision and conflict between the user ends and reduce the energy consumption thereof, thus further improving the random access performance of the system.
Owner:SHANGHAI RES CENT FOR WIRELESS COMM

A virtual mimo communication strategy for wireless sensor networks based on cooperative groups

A wireless sensor network virtual MIMO communication strategy based on cooperative groups is called as group collaboration MIMO (GCMIMO). A method similar to the CMIMO is adopted to carrying out clustering on a network for the GCMIMO, and each cluster is managed by two cluster heads, namely a main cluster head and a secondary cluster head. The main cluster heads are used for dividing information source nodes in the corresponding clusters into a plurality of cooperative groups, each cooperative group is composed of two adjacent information nodes, is equivalent to a virtual double-antenna sending end and is used for sending information source data of the cooperative groups, the secondary cluster heads and the main cluster heads are considered as one cooperation group which is called as a main cooperative group and used for receiving and forwarding the data of other cooperative groups, and therefore multi-hop virtual MIMO transmission is achieved. Different from an existing virtual MIMO communication strategy, the GCMIMO does not need to collect information source data through the cluster heads and directly sends the information source data through the cooperative groups, so that the forwarding frequency of the information source data is reduced and the energy efficiency of intra-cluster communication stages is improved. In a simulation experiment, energy consumption analysis of each communication stage of the GCMIMO proves that the GCMIMO effectively lowers the energy consumption of intra-cluster communication and network maintenance frequency, and improves energy efficiency.
Owner:HENAN UNIV OF SCI & TECH

A cell user processing method, device and centralized icic equipment

The invention provides a cell user processing method and device, and centralized ICIC (Inter-Cell Interference Coordination) equipment. The method comprises the following steps of receiving a first edge user number of each cell at a first point under a plurality of base stations reported by a plurality of base stations in a plurality of original CoMP (Coordinated Multiple Points Transmission / Reception) cooperative groups; judging whether the first edge user number exceeds a preset first threshold value to obtain a first judging result; and when the first judging result indicates that the first edge user number of a first cell at the first point exceeds the first threshold value, re-dividing the original CoMP cooperative groups to a plurality of first dynamic CoMP cooperative groups in order to affirm edge users of the first cell at the first time point as central users in the first dynamic CoMP cooperative groups. Through detecting the gathering degree of the users at the cell edge, the edge users of the first cell at the first time point are re-divided to the central users in the first dynamic CoMP cooperative groups, so that a CoMP technology can be guaranteed to coordinate interference quickly, and the spectrum effectiveness of the cell edge is improved.
Owner:CHINA MOBILE COMM GRP CO LTD
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