120results about How to "The query result is accurate" patented technology

Disclosed herein is a data stream processing apparatus and method using query partitioning, which allow data stream processing apparatuses to perform partitioned processing / parallel processing on partitioned sub-queries. The proposed data stream processing apparatus using query partitioning receives a query from a user, partitions the query into a plurality of sub-queries, transmits the partitioned sub-queries to another data stream processing apparatus or a sub-query processing unit, integrates the results of the processing of sub-queries processed by the other data stream processing apparatus and the sub-query processing unit with each other, generates a response to the query, and transmits the generated response to the user.

The invention belongs to the technical field of information retrieval, and provides a full-text retrieval system based on two-level semantic analysis. The system comprises a query information receiving module, a sentence summary level semantic processing module, a retrieval module, an index library, an index module, a text level semantic processing module, a result set processing module and a data server. The system performs summary processing and repeat processing for a query statement to repeat the query statement submitted by a user from sentence summary level semanteme, and latent semantic information and thematic information are extracted in the text level to eliminate retrieval result documents not conforming to text level semanteme, so that the full-text retrieval system achieves two-level semantic analysis in the 'sentence summary level' and the 'text level'. By improving semantic processing capacity of query statements and text sets, the full-text retrieval system is more human-friendly and intelligent, and provides more convenient and accurate services for users.

The invention discloses a method for in-station navigation and a system thereof, which solve a series of problem such as complicated in-station enquiry, enquiry results not being previewed and modifying enquiry needing renewed inputting etc. to help a user quickly and conveniently search a wanted web. The method comprises: calculating a relativity of in-station webs and enquiry words to obtain a relative attribute value; calculating webs' important degree according to link relations of in-station webs to obtain webs' important degree attribute values; by combining the relative attribute values and the important degree attribute values, calculating a total weight value of in-station webs, and using the webs link information whose total weight value accords preset conditions as navigation prompted information; corresponding the enquiry words, indicating the navigation prompt information in a enquiry input frame list to commend to a user. Users can real-timely preview prompted webs link information, and find wanted webs in shortest time; also the method is convenient for using which a user only need to input enquiry words and need not to know too much of a website's directory structure.

The invention provides a system for inquiring a zip code for a mailing address. The system comprises a mailing address input subsystem and a zip code inquiring subsystem, wherein the mailing address input subsystem carries out real-time prompts on user input text, and a user determines the mailing address to be inquired according to a prompt list address; the zip code inquiring subsystem carries out standardization on the mailing address to be inquired and searches for the proximal standardization mailing address, and meanwhile returning of the zip code corresponding to the standardization mailing address is achieved. According to the system, the user is helped to input the prompts, and an inquiring format is more free; the grade of metadata of a user input address can be identified on the basis of the technology of identification of a named entity, therefore, step-by-step inquiring about the address is achieved, meanwhile complementation is carried out on the mailing address, and an inquiring result is more precise; in addition, the user can further obtain the inquiring result in a two-dimension code mode, and alternatively positioning is carried out through map linkage. In addition, the invention further provides a terminal for inquiring the zip code for the mailing address.

The invention provides a vehicle navigation POI (Point of Interest) search engine based on an internetwork word segmentation idea, comprising the following steps of: (1) carrying out word segmentation treatment on a POI name in POI original data; (2) generating information index of the POI search engine according to a word segmentation result; and (3) inquiring the POI name according to the information index of the POI search engine. The invention can provide queries of characters and pinyin and provide the functions of prompting association when a query is input, previewing the number of search results, automatically correcting a misinput and inquiring the multiple times of inputs in combination.

The invention discloses a privacy budget allocating and data publishing method for protecting the data query privacy. The privacy budget allocating and data publishing method includes steps of firstly, setting privacy budget parameters, to be more specific, giving privacy budgets of data by data administrators according to importance degrees of the data, denoting the privacy budgets of the data asepsilon, setting basic query frequencies of the data and denoting the basic query frequencies of the data as k; secondly, computing privacy budgets of each query; thirdly, acquiring the sensitivity delta f of the query according to the query f submitted by users, combining the sensitivity delta f with the privacy budget epsilon allocated to the query, and computing required-to-be-added noise forquery results by the aid of difference privacy protection algorithms so as to obtain query results with the noise; fourthly, returning the query results with the noise according to the query submittedby the users so as to protect the privacy of the data. The privacy budget allocating and data publishing method has the advantages that the privacy can be protected in data publishing procedures, accomplice attack can be resisted, the precision of first k times of query can be guaranteed, and the problem of excessively low data availability due to the fact that existing privacy budgets are infinitely allocated can be solved by the aid of the privacy budget allocating and data publishing method.

The invention discloses a smart robot-oriented question and answer data processing method and apparatus. The method comprises a condition judgment step, a knowledge graph processing step and a result output step, wherein the condition adjustment step is implemented by performing syntactic analysis on a query statement input by a user, judging whether the query statement belongs to a query range of a knowledge graph or not, and if the query statement belongs to the query range of the knowledge graph, performing the knowledge graph processing step; the knowledge graph processing step is implemented by processing the query statement by utilizing a preset knowledge graph to obtain a knowledge graph processing result; and the result output step is implemented by outputting the knowledge graph processing result as an answer of the query statement to a question and answer system. According to the method, the answer acquisition time of a user can be greatly shortened and the accuracy of an obtained query problem answer can be enhanced, so that the user experience of a smart robot is improved.

The invention discloses a keyword search method of a relational database. The method comprises the steps of 1) providing a serial of search keywords to a user through a search system for a special database; 2) inputting the keywords by the user during searching, and combining the keywords by the system; 3) performing dependence mapping of the keywords combination and database search language SQL by the system; 4) dynamically linking with the database through SQL search language, so as to achieve accurate data search. According to the method, a keyword search language is provided to the user; the user can accurately search in the database through the language; the search language is flexible and can be flexibly configured when the database structure changes; the grammar is simple and intuitive, and the user can use easily; the search result is accurate.

A databank unit of geographic information system consists of space databank for storing space geographic data of geographic space entity, attribute databank for storing attribute data of geographic space entity, data analysis unit for generating auxiliary information of space geographic data and view set of attribute data according to preset application requirement, data correlation unit for making auxiliary information be correlated with view set and for generating multidimensional data relation-table.

The invention discloses a method and device for an expansion query. The method comprises the specific steps of on the basis of an image relevant to a target query, clicking a log to calculate an imageclicking characteristic vector of the target query; on the basis of an image of the target query, clicking the characteristic vector, searching for a similar query of the target query in a preset query set, and obtaining a candidate expansion query set of the target query; matching the target query and all candidate expansion queries with notional words and determiners in a knowledge graph to extract notional words and determiners of the target query and all the candidate expansion queries; combining with the knowledge graph to expanding the notional words and the determiners of the target query and all the candidate expansion queries; matching expansion results of the notional words and the determiners of the target query and all the candidate expansion queries to determine the expansionquery of the target query from the candidate expansion query set. The method and device for the expansion query improve the richness of the expansion query.

The invention discloses a data query optimization method and device. The method comprises the steps that a data query request is received, property information and all data tables of to-be-queried data corresponding to the data query request are determined, sampling is performed in each data table according to the property information, sample data corresponding to all the data tables is obtained, a sample execution plan based on all the sample data is generated according to the sample data, the sample execution plan is executed, sample statistical information for all the sample data is acquired according to the execution result, global statistical information for all the data tables is generated according to the sample statistical information, and according to the global statistical information, an optimal global execution plan is determined among all global execution plans generated according to all the data tables in advance. The method is suitable for query optimization of multiple tables and a single table and high in practicability.

An embodiment of the invention discloses a method and a device for extracting core words. Accurate core words can be extracted from query words inputted by users, so that query accuracy ratio is increased. The method includes the steps: segmenting the query words by the aid of preset segmentation words to obtain segmentation words forming the query words; respectively matching the segmentation words of the query words with phrases in a core word bank and a non-core word bank; determining the segmentation words matched with the core word bank to serve as core words of the query words if the segmentation words are matched with the core word bank and / or the non-core word bank and unknown segmentation words exist in the segmentation words of the query words; acquiring unknown segmentation words meeting length standards of preset core words or splicing the unknown segmentation words to obtain segmentation words, and enabling the segmentation words to serve as the core words of the query words. The unknown segmentation words are segmentation words which are not matched with the phrases in the core word bank and the non-core word bank.

The invention discloses a method for searching semantic association of medical documents based on the ontology. The method comprises A. analyzing XML documents and identifying marks of the XML documents; B. sorting the marks of the XML documents according to a Rock sorting algorithm based on links, describing a sorting result using the ontology web language (OWL), and constructing an XML document cluster ontology; C. converting analyzed marks of the XML documents and text data into examples of the XML document cluster ontology through a D2R semantic data converter, and storing in a semantic web resource description framework triple mode; and D. searching using a vector searching algorithm based on the simple path Xpath. The method can be used for searching similarity of full texts and estimating correlation of a search result, a user can obtain a complete and accurate search result with no need to be very familiar with documents. The method is used for storing and searching medical documents.

The invention discloses a subgraph query method and device and a computer-readable storage medium. The subgraph query method comprises the following steps of firstly obtaining a query graph input by auser, after determining the quantity of vertexes, the types of all the vertexes and weights among the vertexes in the query graph and obtaining the structure of the query graph, carrying out pruningprocessing on a to-be-processed graph model according to the quantity of the vertexes, the types of all the vertexes and the weights among the vertexes in the query graph, so as to reduce unnecessaryquery matching times, using the graph model subjected to the pruning processing as a to-be-found graph model, and finally finding a target subgraph, matched with the structure of the query graph, in the to-be-found graph model. Thus, when the query graph input by the user contains a specific query condition, quickly and effectively carrying out subgraph query on a to-be-processed graph is realized, and an accurate subgraph query result is obtained.

The invention provides a mining method and device of a single entity instance. The method comprises the following steps: fetching a page which is from a plurality of data sources and contains an entity instance corresponding to an entity of a specific type; independently extracting the entity name, the attribute name and the attribute value of the entity instance contained in the page; and aiming at an entity instance set of the identical entities, and combining entity instances which describe the same entity in the set into the single entity instance of the same entity according to the distribution entropy index of the attribute value under the attribute name corresponding to the identical entities, wherein the attribute name has a single distinction degree, and the identical entities are the entity instances which have the same entity name. The entity described by the single entity instance finally obtained by the combination is the identical entity, a mining result is accurate, so that a knowledge base constructed by the single entity instance is more accurate, a query result obtained when a subsequent user inquires the knowledge base is more accurate, and user experience is improved.

The invention discloses an entity matching method and device, and relates to the technical field of the Internet. The method comprises the steps: performing entity identification on keywords in a received query request to obtain keyword entities; performing similarity calculation of a multi-dimensional identification result on the keyword entity and service information in a preset database to obtain multi-dimensional similarity between the keyword entity and the service information in the preset database; obtaining target service information matched with the keyword entity according to the multi-stage similarity between the keyword entity and the service information in a preset database and the multi-dimensional similarity; and generating an operation instruction corresponding to the queryrequest according to the target service information. By means of the technical scheme, the query experience of the user can be effectively improved, and meanwhile, the technical problem that the keyword query accuracy is low under the condition that no knowledge graph exists temporarily or the knowledge graph is incomplete is effectively solved.

The embodiment of the invention is suitable for the technical field of data processing. The invention provides a data query method and device, terminal equipment and a storage medium, and the method comprises the steps: extracting to-be-queried information carried in a data query instruction when the data query instruction is received, wherein the to-be-queried information comprises the table information of a to-be-queried data table and the field information of a to-be-queried field; determining a table structure of the to-be-queried data table according to the table information; generating adata configuration table according to the table structure and the field information; reading a plurality of field values corresponding to the to-be-queried field, and separating the plurality of field values through a preset separator; writing the read field values into the data bits corresponding to the target fields of the data configuration table in sequence to acquire a data query result . Tthe problem that in the prior art, when data records are processed, wrong rows or wrong columns are prone to occurring is solved, and the accuracy of data query is guaranteed.

The invention discloses an information retrieval method and device, a computer device and a storage medium, and the method comprises the steps: obtaining an information query request sent from a preset instruction interface in a software development tool; Querying a preset retrieval library based on the at least one information keyword to obtain a recommendation information list; displaying a recommendation information list, the recommendation information list comprising at least one group of recommendation information, each group of recommendation information comprising recommendation topicsand topic link paths corresponding to the recommendation topics; Obtaining a theme viewing request sent by a software development tool; and skipping to a theme link path corresponding to the target theme to obtain target query information, and displaying the target query information on an information display interface. The method is beneficial for a developer to meet problems in the software development process and can achieve problem retrieval in a software development tool in time, and the problem solving efficiency of the developer in the software development process is improved.

The invention discloses a KNN query method in road network mobile environment. The method comprises that a distance range between a mobile object and a mobile query point in the road network environment is obtained; mobile object information is continuously obtained during a given period of time according to the distance range, so that a first candidate set is obtained; mobile object information in the first candidate set which cannot be the KNN query result of the mobile query point is filtered out, so that a second candidate set is obtained; a spatial-temporal query is sent to a third-party network map service provider according to the second candidate set, and a distance measure sent back by the third-play internet map service provider is received; the KNN query result of the mobile query point is generated according to the distance measure. The invention further discloses a KNN query system in the road network environment. According to the method and system, high dynamics and unpredictability of a road network are fully considered, actual road condition information is reflected, and more accurate query result is provided.

The present invention belongs to the field of data privacy protection, and provides a safety kNN query method based on the LBS. The flows of the method comprise the steps of: generating a key pair andan encryption index structure by a data owner, sending the encryption index structure to a server C1, sending a public key to the server C1, a server C2 and a user, and sending a private key to the server C2; employing public key encryption to generate an encryption query request for the query of the user itself, and sending the query request to the server C1; after the server C1 obtains the encryption index structure and an encrypted query request, defining secure two party computation; based on the secure two party computation, designing a safety kNN query protocol; and returning a query result to a user. The safety kNN query method based on the LBS can effectively protect the privacy of data on the server, the privacy of the query request of the user, the privacy of the query result ofthe user and the access mode in the query process, and provides an accurate query result, is suitable for a mobile device with a lower processing capacity and greatly improves the speed completing the query.

The invention relates to the field of multimedia, and discloses a method and system for playing multimedia resources in courses. According to the method and system for playing the multimedia resources in the courses, bar codes comprising keywords and course types are attached to material objects, the multimedia resources which belong to the same keyword are screened according to the course types, during the process of material object teaching or practical training, the keywords are not required to be manually input, the standardization of the keywords is ensured, the multimedia resources which are truly required to be played can be accurately found, the query time is shortened, and the efficiency of a computer system is improved. According to a preset course schedule, the corresponding course type is found on the basis of the current time, then the multimedia resources are queried by combining the keywords scanned from the bar codes, the bar codes are not required to be replaced for the different courses, different results can be obtained at different times, the query mode is more intelligent, and the query results are more accurate.

The present application provides a method, apparatus, electronic device and computer storage medium for constructing a query diagram. The method includes: obtaining query information input by a user;Determining an entity triple of the query information according to a syntax dependency tree of the query information, a named entity in the query information and a category entity in the query information, wherein the entity triple is used for representing entity relationships in the query information; According to the entity triple, a query map corresponding to the query information is constructed. By determining the entity triplet of the query information and constructing a query map corresponding to the query information, the application can accurately identify the query intention of the user.

The invention relates to the field of multimedia and discloses a method and a system for playing multimedia resources in courses. According to the method and the system, radio frequency tags containing keywords and course types are adhered to material objects, the multimedia resources belonging to one keyword are screened according to the course types, and during an object teaching process or a practical training process, the keywords do not need to be input with one another, the standardization of the keywords is ensured, and the multimedia resources needing to be displayed indeed can be found accurately, so that the query time is shortened, and the efficiency of a computer system is improved; and by virtue of the radio frequency tags, the success rate of identifying and reading tag information is further improved, and the system is more convenient to use. The method comprises the following steps of: searching the corresponding course type at current time according to a preset course data sheet, and searching the multimedia resources in combination with the keywords scanned from the radio frequency tags. According to the method and the system, the radio frequency tag does not need to be changed along with the different courses, different results can be generated in different times, the query mode is relatively intelligent, and the query result is relatively accurate.

The invention discloses a query result diversification method and device and relates to information retrieval techniques. A set of related keyword combinations of a set of keywords of a given query is determined by domain ontology, query is conducted by using the related keyword combinations, and unreliable query logs are prevented from being used to determine subquery keywords, thus enabling diversified query results to be more accurate.

The invention provides a data processing and querying method for blockchain digital currency. The data processing and querying method comprises the following steps: S1, requesting an Ethereum webpagethrough a high-concurrency program, and obtaining the block data, external transaction data and internal transaction data generated in the historical transaction of an Ethereum; S2, calculating the account balance of each account in the Ethereum after each transaction according to the block data, the external transaction data and the internal transaction data; and S3, constructing a big data cluster, and realizing storage and real-time query of the block data, the external transaction data, the internal transaction data and the account balance. According to the data processing and querying method, the full data of the Ethereum is rapidly obtained through the high-concurrency program, and the account balance is calculated, and the full data of the Ethereum is obtained, and the calculation method is simple and effective, and the data is stored through the big data cluster, and data real-time query is carried out, and digital currency management and query can be efficiently and accuratelyachieved.

The invention discloses a distributed Top-k query method oriented to Internet of things data. The distributed Top-k query method comprises the following steps: (1) establishing an optimal query tree, specifically comprising the following three processes, namely selecting network backbone nodes, selecting connecting nodes, and acting each node queried in each turn as a root node in turn according to an ID (Identification) number; (2) carrying out Top-k query on the basis of the optimal query tree, specifically comprising the three following processes, namely query initialization, data update value sending, and top-k query of sink nodes. According to the distributed Top-k query method, the node degrees, the self energy and communication overhead of adjacent nodes are sufficiently considered when the optimal query tree is established, and the nodes having low energy cost are selected as dominate nodes, so that the energy consumption of the nodes is effectively balanced, the problem that nodes near a root node undergo premature death only brought in a traditional query tree is further solved, and the life cycle of the Internet of things is greatly prolonged; in addition, sending of invalid update values in each turn is restricted by setting filter values in a query algorithm, and thus the average query energy consumption in each turn is effectively reduced.

The present invention discloses a method for query based on layout information, including: setting up a query condition containing layout information; and querying an electronic document based on the query condition containing the layout information. The present invention also discloses a device corresponding to the method.

The invention provides a split bill querying method and device. A querying demand input by a user is acquired, split bill treatment is carried out on the querying demand to acquire a plurality of sub-demands belonging to service nodes, matched querying is carried out according to the multiple sub-demands to acquire a plurality of corresponding target objects, and the multiple target objects are provided for the user. A more precise querying result is provided for the user, the procedures of a non-standardized purchasing business of the user are simplified, interaction between the user and the querying device is reduced, and achievement accuracy of the non-standardized purchasing demand is improved.