33results about How to "Reduce query cost" patented technology

The invention provides a commodity digital anti-counterfeit method. The method comprises the following steps: setting security codes and randomly generated anti-forgery patterns on commodities; building one-one correspondence between the security codes and the anti-forgery patterns in an identification system; obtaining the identification system for users, inputting the security codes on commodities to the identification system, and outputting the anti-forgery patterns corresponding the security codes by the identification system. The method of the invention does not need real-time networkingsupport, the query efficiency is high and the query cost is low.

The invention discloses a location anonymous method for resisting a replay attack in a road network environment. The location anonymous method for resisting the replay attack in the road network environment comprises the steps that: (1), road sections are pre-processed; the road sections are pre-sorted for one time by adoption of breadth-first sorting; and the location query cost is reduced; and (2), an anonymous set is constructed; an equivalent partition is obtained from the sorted road sections; an anonymous and equivalent road section concealment set is obtained; various road sections in the concealment set are equalized by adoption of a pseudo-user adding mechanism, so that the edge weight association degree satisfies a pre-set threshold value; and thus, a privacy threat due to an edge weight inference attack also can be prevented while the replay attack is resisted. By means of the location anonymous method for resisting the replay attack in the road network environment disclosedby the invention, the common replay attack and edge weight inference attack in the road network environment can be resisted while the concealment set can be effectively generated; and furthermore, the method is low in query cost and quick in service response.

The invention discloses a multifunctional data management platform, and the platform comprises an internal request processing module which is used for receiving a data query request of an internal service system and returning a message corresponding to a data processing result to the internal service system; an external interface processing module which is used for forwarding the external query request to an external data supplier, receiving a message returned by the external data supplier and analyzing the message; a micro-service module which is used for providing a response query service and a cache service for the query request; and a data storage module which is used for storing the query service and the data generated by the micro-service module. The system can unify external data management entrances and exits, unify internal service system docking standards, avoid respective development of each service system, respective docking of external data suppliers and repeated function development, facilitate full-life-cycle management such as external data access, query, effect analysis and exit, support shared query capability, improve data docking efficiency, and business requirements are met.

The present invention belongs to the field of anti-fake technology and discloses a kind anti-fake method adopting individual characteristics. Several visual anti-fake characteristic combination, which can not be forged in computerized drawing equipment, is matched with unique inquiry code. The present invention features non-graphic inquiry without need of image distinction and artificially provided distinguishing information and high anti-fake effect.

Provided is a dynamic RDF data conversion storage and attribute selection method. According to queries submitted by users, attributes are selected dynamically, a list structure is determined, and the list structure is optimized according to information related with connecting operations in the queries; the method comprises the steps that (1), RDF data query sets are inputted to generate corresponding attribute connecting condition matrices; (2), based on the attribute connecting condition matrices, attribute correlation degree matrices are generated; (3), the attribute correlation degree matrices are subjected to clustering; (4), according to affinity degree thresholds designated by the users, the clustered attribute correlation degree matrices are analyzed to execute attribute selection, and one or one ultimate attribute tables are formed. The query sets are inputted, so that the attribute connecting condition matrices are generated.

The invention designs an unmanned aerial vehicle ad hoc network active routing method based on clustering. According to the routing, aiming at the problems of routing message flooding and stable link selection of an unmanned aerial vehicle ad hoc network routing under the condition that nodes are increased, a clustering routing method utilizing node and link stability prediction and survivability calculation is designed, and the method utilizes clustering to reduce congestion and perform effective network communication stability maintenance. Due to the problems that the number of unmanned aerial vehicles is continuously increased, the mobility is high, the number of links is increased and the links are unstable, an unmanned aerial vehicle routing method based on clustering must be designed. According to the routing method, firstly, unmanned aerial vehicles are divided into different clusters, routing between nodes in the clusters and routing between the clusters are managed through cluster heads, the cluster heads can generate time sequence-based destroy-resistant routing between the nodes in the clusters according to node motion states, and on the basis, the nodes actively maintain the availability of destroy-resistant routing tables; therefore, when the node is detected to be damaged, the node can be repaired in time to complete normal message communication, and the link state between the nodes in the corresponding route is predicted and evaluated during communication, so as to guarantee the QoS requirements of different services. The method is suitable for a man-machine ad hoc network environment, the stability of unmanned aerial vehicle group communication can be improved, and the problem of transient communication paralysis caused by node damage is avoided.

The invention discloses a parent level query method and device, equipment and a storage medium, and relates to the technical field of big data, and the method comprises the following steps: obtaining object information of each object in all levels except the highest level in an organizational structure diagram, and integrating the object information of each object to obtain a plurality of first integrated data; integrating all the first integrated data into one line to obtain second integrated data; inputting the second integrated data into a self-defined user definition table generation function; and when it is monitored that a parent level of a target object in the organizational structure diagram needs to be queried, querying parent primary keys of all levels of the target object from the second integrated data through the user definition table generation function, and outputting the parent primary keys. According to the method and the device, the parent primary keys of the objects in the specified type hierarchy in the organizational structure diagram can be simply, conveniently and intuitively output through the user-defined table generation function, so that the query efficiency is improved, and the query cost is saved.

The embodiment of the invention provides a data query and result generation method and device, equipment and a storage medium. The method comprises the steps that to-be-queried content information, column information, query limitation conditions of the to-be-queried content information and storage information of a query result are acquired from each query demand; a query parameter file and an address parameter file corresponding to each query demand are generated, wherein each query parameter file comprises the corresponding to-be-queried content information, column information and query limitation conditions, and each address parameter file comprises the storage information of the corresponding query result; according to each query demand, the query parameter file corresponding to the query demand is called, and the query result corresponding to the query demand is obtained through query according to the query parameter file; and according to each query demand, the address parameter file corresponding to the query demand is called, and the query result corresponding to the query demand is downloaded according to the address parameter file. The scheme is beneficial for lowering query cost, improving query flexibility and lowering the resource occupation rate.

The invention relates to the technical field of data processing, in particular to a public opinion data query method and a related device. The technical scheme provided by the invention is executed by a public opinion data query system, the public opinion data query system receives query condition information, the query condition information is used for querying target public opinion data, and summary information of the target public opinion data is queried in a database according to the query condition information; the summary information comprises data information except the text file of the target public opinion data, the text file of the target public opinion data is inquired from the file server, the inquiry result of the target public opinion data is displayed, and the inquiry result comprises the summary information and the text file of the target public opinion data. According to the technical scheme provided by the invention, the query efficiency of the public opinion data is improved, and the query cost of the public opinion data is reduced.