36results about How to "Improve retrieval rate" patented technology

A method and system for retrieving information from a set of documents using one retrieval keyword or more is capable of remarkably increasing the relevance ratio of a retrieval result. The system includes a category dictionary for storing category information containing morphemes included in the documents in a hierarchical structure, a morpheme-ID array produced by converting the set of documents into a set of fixed-length IDs in accordance with the morphemes while maintaining order information of the morphemes, and a retrieval part for retrieving a morpheme ID from the morpheme-ID array. The retrieval part retrieves a morpheme ID of the retrieval word and of any morpheme co-occurring with the retrieval word and having category information which matches retrieval-category information.

Prefixes are registered on a first list as index elements for respective registration patterns. Each prefix is selected as the longest of different-length prefixes that are extractable from a registration pattern in accordance with an extraction rule. Suffixes, which are the remaining parts of the registration patterns excluding the respective prefixes, are registered on a second list. Using different-length prefixes that are extracted from a retrieval key in accordance with the extraction rule, a prefix retriever searches the first list to retrieve a registration pattern whose prefix matches any of the prefixes of the retrieval key. A suffix checker carries out a check on the suffix of the registration pattern retrieved by the prefix retriever, among the suffixes on the second list, as to whether the suffix of the registration pattern matches the suffix of the retrieval key.

A system for compensating for timing violations of time restricted data being transmitted over a bursty communication channel. The system includes a retriever, coupled to a buffer, for retrieving the time restricted data from the buffer, at a retrieval rate, a buffer level monitor, coupled to the buffer, for monitoring the level of time restricted data in the buffer at a monitoring rate and a controller coupled to the buffer level monitor and to the retriever, for setting the retrieval rate and the monitoring rate.

A document retrieval is performed with similarities between documents in numeric data taken into consideration. To this end, generated is a set E of intervals in which each element of a set D of numeric values representing a feature A is included in any one of the intervals. Each numeric value in each document is indexed by assigning, with 1, an interval including an element x of the set D, and with 0, an interval without the element x. Each document data including numeric values is indexed by indexing its text part with term frequencies, and by indexing its numeric-value part with the above-described numeric value indexing scheme. By use of indices thus created for each of the document data, similarities between the document data are calculated using a vector space model or a probability model, and the document data are presented in order of similarity.

The invention discloses a distributed real-time search engine based on p2p. A cluster of the distributed real-time search engine comprises a plurality of nodes, each node comprises more than one index, each index is divided into more than one index fragmentation, and each index fragmentation only comprises a main fragmentation or simultaneously comprises a main fragmentation and more than one duplicate; the nodes are independent from one another, are connected with one another through peer-to-peer networks, and are communicated with one another in a broadcast or multicast mode, and each independent node stores a cluster index metadata sheet reflecting index information of all the nodes in the whole cluster. When the indexes are updated and searched, the nodes read the cluster index metadata sheets and send requests to the corresponding nodes to conduct indexing or search according to attributes of the requests. By means of the method, main nodes are omitted, a searching route is shortened, and the searching speed is improved. The distributed real-time search engine has high fault tolerance, so that even if one node breaks down, other nodes still can work normally, and no burden is caused on a system.

IP addresses included in a route table are segmented so as to be able to be retrieved all together, and are retrieved at a high rate. As means for retrieving the IP address, a pointer table 200, a secondary pointer table, a local table, and a route table are provided, and a table with a numerical value comparing function is also provided when the further segmentation is necessary. In the retrieval for the ACL table, a fixed length data table of fixed length data configured in the ACL table is generated, and the ACL table is retrieved by using a retrieving method for retrieving the route table. Such tables are provided with a table manager 600 as means for efficiently composing and managing the table, and managing to prevent the retrieving operation from being obstructed.

The invention discloses a sole trace pattern image retrieval method based on a multi-feedback mechanism, comprising the following steps: step 1, sorting and outputting sole trace pattern images pre-stored in a sample image library according to the degree of similarity between the spectrum characteristics of binary charts of sole trace pattern images acquired on site and the features of the images in the sample image library; step 2, selecting at least two of the output sole trace pattern images pre-stored in the sample image library according to a predetermined standard, averaging the spectrum characteristics of the selected sole trace pattern images according to the spectrum characteristics of the selected sole trace pattern images, and working out the average spectrum characteristic; step 3, calculating the score of similarity between the average spectrum characteristic and the spectrum characteristic of the binary chart of each sole trace pattern image pre-stored in the sample image library; and step 4, outputting the sole trace pattern images pre-stored in the sample image library according to the score of similarity from high to low.

The invention discloses an onsite sole trace pattern image retrieval method. The method comprises the steps as follows: processing the sole trace pattern image collected on the site to obtain a binary image and extracting the spectrum signature of the binary image; obtaining the spectrum signatures of binary images of all sole trace pattern images which are pre-stored in a sample image library; calculating similarity scores of the spectrum signature of the binary image of the sole trace pattern image which is collected on the site and the spectrum signatures of the binary images of the sole trace pattern images which are pre-stored in the sample image library; ordering the similarity scores according to a preset rule and outputting the sole trace pattern images which are pre-stored in the sample image library according to the order. According to the technical solution, the method of the invention could be used for retrieving the low-quality sole trace pattern image collected on the site. The retrieval method is simple, fast in speed, and relative accurate and comprehensive in result.

The invention provides a data indexing method for streaming time sequence data, which comprises the following steps of: 1, establishing an integral data indexing structure which is formed by adding aB * tree pointing to a sibling pointer to non-root and non-leaf nodes of a B + tree; Step 2, carrying out batch resource application and index optimization; And step 3, carrying out trigger type treestructure segmentation and combination.

The invention discloses a structural data distributed index and a retrieval method. According to the structural data distributed index, a reverse index table of a distributed partial index structure is established through the MapReduce program, and the reverse index table is stored in a distributed column database. Index establishment comprises the steps of selecting a frequently-used column, establishing reverse indexes and achieving the distributed index. The retrieval method comprises the following steps that a retrieval column name is given; a retrieval keyword is established; search is conducted in the reverse indexes with the retrieval keyword; a union set returned through a search result is a retrieval result set. According to the structural data distributed index and the retrieval method, the reverse index table of the distributed partial index structure is established through the MapReduce program, the problem that the retrieval efficiency of mass structural data is low, and the retrieval speed will be greatly increased.

The invention provides a method for protecting position privacy based on a cache. According to the current position of a mobile user, information point data quite high in using possibility in future is cached, a client side first retrieves the local cache to solve user inquiry, the cache misses the hit, then the inquiry is sent to an LBS server, the processing rate of inquiry is increased, meanwhile, the communication frequency between the client side and the server is reduced, and user privacy protection is enhanced. The invention further provides a distance hierarchical tree index structureand a maximum distance replacement algorithm suitable for the cache. The rate can be effectively increased when the cache is retrieved, and the cache hit ratio is increased. The method is simple in realization process and easy to operate.

Prefixes are registered on a first list as index elements for respective registration patterns. Each prefix is selected as the longest of different-length prefixes that are extractable from a registration pattern in accordance with an extraction rule. Suffixes, which are the remaining parts of the registration patterns excluding the respective prefixes, are registered on a second list. Using different-length prefixes that are extracted from a retrieval key in accordance with the extraction rule, a prefix retriever searches the first list to retrieve a registration pattern whose prefix matches any of the prefixes of the retrieval key. A suffix checker carries out a check on the suffix of the registration pattern retrieved by the prefix retriever, among the suffixes on the second list, as to whether the suffix of the registration pattern matches the suffix of the retrieval key.

The invention relates to a similarity search method of enterprise names. The similarity search method comprises steps as follows: input search keywords are decomposed, and the processed search keywords are obtained, wherein the search keywords are to-be-researched enterprise names; search phrases are determined according to the processed search keywords; similarity search is performed on the determined search phrases and search results are obtained; the enterprise names ranking in the top N of the search results are displayed to be checked by users, and N is an integer larger than 1. With the adoption of the method, the search efficiency is greatly improved, the users can check similarity research results, and the requirement of similarity search business is met.

An information processing apparatus includes: a calculation unit adapted to analyze an image and calculate an intermediate value; a setting unit adapted to set a feature extraction region in the image, using the intermediate value; and an extraction unit adapted to extract a local feature of the feature extraction region, reusing the intermediate value used by the setting unit.

The invention discloses a cross-modal hash retrieval method and system based on supervised semantic coupling consistency, and the method comprises the steps: extracting the features of modal sample data in each modal database, and constructing a sample library set; solving a hash code of each modal sample in the sample library set; extracting features of the to-be-retrieved modal data, and solvinghash codes of the to-be-retrieved modal data according to the features; and comparing the hash code of the to-be-retrieved modal data with the hash code of each modal sample, wherein the modal sampleof which the comparison result meets the preset condition is used as the retrieval result of the to-be-retrieved modal data. According to the method, the high-level semantic relationship is considered, and the inline coupling between the modals is also considered, so that the modals not only can supervise and learn the hash codes of the modals, but also can keep the semantic consistency between the modals. According to the method, the discrimination strength and compactness robustness of the hash code can be effectively improved, the retrieval rate between modes is increased, and the accuracyof cross-modal retrieval is improved.

The invention belongs to the technical field of engineering articles, and discloses a system and a method for construction remote monitoring and management. A wireless transmission module, an alarm prompting module and an information informing module are jointly connected with a monitoring center management module. A video monitoring module is connected with a video image processing module. The video image processing module is connected with the monitoring center management module. A voice broadcast module is connected with a power monitoring center management module and a power energy storagemodule. A high-voltage prevention module is connected with the power energy storage module. The structure of the system can monitor construction site situations in real time. When accident occurs, the system can send out voice warning to workers by broadcasting, and can notify responsible personnel in a construction area to organize the workers to evacuate safely, to protect life safety of the workers, and effectively improve management level of safe construction of a project.

A document retrieval is performed with similarities between documents in numeric data taken into consideration. To this end, generated is a set E of intervals in which each element of a set D of numeric values representing a feature A is included in any one of the intervals. Each numeric value in each document is indexed by assigning, with 1, an interval including an element x of the set D, and with 0, an interval without the element x. Each document data including numeric values is indexed by indexing its text part with term frequencies, and by indexing its numeric-value part with the above-described numeric value indexing scheme. By use of indices thus created for each of the document data, similarities between the document data are calculated using a vector space model or a probability model, and the document data are presented in order of similarity.

The invention relates to the technical field of big data in artificial intelligence, and discloses a phrase dictionary real-time generation method comprising the steps that a real-time cache data setis acquired, and the real-time cache data set is a data set obtained after a real-time data set crawled according to a preset rule is transmitted to a distributed message queue to be cached in real time; extracting phrase texts in the real-time cache data set to generate a phrase text set; inputting the phrase text set into a preset distributed search engine for preprocessing operation to obtain atarget phrase text set; and receiving a to-be-queried phrase text, querying an associated phrase text of the to-be-queried phrase text according to a target phrase text set in the distributed searchengine, and generating a phrase dictionary. The invention further provides a phrase dictionary real-time generation device, electronic equipment and a computer readable storage medium. According to the invention, the phrase dictionary can be generated in real time.

The invention relates to a column pre-registration and channel compilation system and a method thereof. The column pre-registration and channel compilation system comprises a channel opening module, a channel registering module, a program guide creating module, a column registering module and a column supplying module. If a column stored in a column registration database is a live-broadcast column, the column is broadcast in real time by the aid of a column supplier terminal via a camera which is registered when a channel is opened, is supplied for a user terminal, and is simultaneously stored in a column storage database, and if a column stored in the column registration database is an on-demand column, in the aspect of the column, the column which is registered by a column supplier terminal is supplied via the user terminal, is simultaneously stored in the column storage database, and is supplied for a column user terminal at specified time.

The invention relates to the technical field of supply and demand information recommendation, and discloses a supply and demand information recommendation method and system based on a knowledge graph,and the method comprises the steps: obtaining supply and demand information, extracting entities, relationships and attribute triples from the supply and demand information through a knowledge extraction method, constructing the supply and demand information graph according to the triples, and storing the supply and demand information graph in a graph database; receiving demand information or supply information input by a user, calling the graph database, and searching the supply information matched with the demand information or the demand information matched with the supply information in the supply and demand information graph; and generating a corresponding recommendation list according to the supply information or demand information obtained by matching, and returning the recommendation list to the user. Accurate supply and demand information is provided for supply and demand parties based on the knowledge graph, and the retrieval speed and precision are improved; meanwhile, related supply and demand information is intelligently recommended to supply and demand parties based on historical data in the knowledge graph.

The invention relates to the field of data query, and discloses a high-concurrency data retrieval method and device, equipment and a storage medium. The high-concurrency data retrieval method comprises the following steps: receiving data retrieval requests initiated by a plurality of clients at the same time, and judging retrieval types corresponding to the data retrieval requests; if the retrieval type is simple retrieval, determining a preset first distributed database cluster as a to-be-retrieved database, and performing retrieval according to a retrieval keyword carried in the data retrieval request to obtain a first retrieval result; if the retrieval type is aggregation retrieval, determining a preset second distributed database cluster as a to-be-retrieved database, and performing retrieval according to a query condition carried in the data retrieval request to obtain a second retrieval result; and sending the first retrieval result and / or the second retrieval result to a corresponding client to respond to the data retrieval request. According to the invention, the data retrieval efficiency can be improved under the condition of high concurrent access.

The invention provides a novel on-chain data high-speed retrieval model based on a built-in index and external connection data warehouse method. The model is composed of a block chain network in an improved index storage form, a data processing cluster and an application layer service. According to the novel block chain network, the organization form of transaction data of a traditional block chain system is improved, and a data structure suitable for high-speed retrieval is designed to organize the transaction data; the data processing cluster is responsible for synchronizing on-chain data to the under-chain relational data warehouse according to an efficient synchronization strategy under the condition of ensuring data consistency; and the application layer service encapsulates rich query functions supported by the relational database, and finally provides services to the outside in forms of HTTP, RPC and the like. By means of the model, the block chain system can be effectively expanded in the aspects of query efficiency, query functions and the like, and the query rate of data on the block chain is increased.

The invention discloses a partition permission management method based on a distributed database, belongs to the technical field of databases, and aims to partition data, set permission and grant permission including access permission and operation permission to partitions to a user. When a user operates the partition data, checking whether the partition data has access permission or not, and further checking whether the partition data has operation permission or not if the partition data has access permission; if no access permission exists, directly ending; and if the target data has the operation authority, performing corresponding operation on the target data, and if the target data has no operation authority, directly ending. According to the method, the inspection granularity and theinspection efficiency of the permission can be improved by utilizing the partition characteristics of the distributed database on the basis of improving the data access permission, retrieval of a large amount of data is avoided, and the retrieval rate of a database system is improved.

The invention provides a document retrieval method and device based on content images. Conventional document retrieval methods need to read the document at a time in order to consider the content, so far it has not been possible to realize the at-a-glance content. Therefore, although there is a method of generating a summary image in advance, it takes a lot of time and cost to generate it. In addition, because there are Because it is difficult to display a summary image of all the documents retrieved on one screen of the monitor, the problem cannot be completely solved. The present invention replaces the document with an image with high visibility, that is, the photographs, diagrams, tables, etc. in the document The image is used as the key image of its document, and one or more retrieval logic formulas using its key image are input, and all images in the document containing similar images satisfying the retrieval logic formula are three-dimensionally displayed on the display screen, and if the searcher chooses If the key image for is displayed, the document content including its key image is displayed.

In order to overcome the defects in the prior art, the invention provides a commodity search processing method and device, and the method comprises the steps: inputting information data of to-be-sold commodities at a rear end, and forming a relational database with identification codes; indexing the relational database to obtain an indexed database; and comparing to-be-retrieved information input by a front end with the indexed database to obtain data corresponding to the to-be-retrieved information. According to the commodity search processing method, the relational database is identified through the primary key, when the relational database is compared with the retrieval information sent by the user, the retrieval information needed by the customer can be quickly and accurately found through comparison between the primary key and the split or combined retrieval information keyword, and finally the retrieval information is displayed to the customer through the front end, so that resource allocation can be reduced, the retrieval rate is increased, and the user experience is improved.

The invention relates to an information retrieval method and device, computer equipment and a storage medium. The method comprises the steps of obtaining an input search word; searching at least two candidate retrieval results according to the retrieval word; obtaining semantic related information between the configured retrieval word and the candidate retrieval result; determining a target retrieval result matched with the retrieval word from the candidate retrieval results according to the semantic related information; and outputting the target retrieval result so as to display the target retrieval result on a retrieval page of the social application. By adopting the method, the calculation complexity in the information retrieval process can be reduced.

The invention discloses a sole trace pattern image retrieval method based on a multi-feedback mechanism, comprising the following steps: step 1, sorting and outputting sole trace pattern images pre-stored in a sample image library according to the degree of similarity between the spectrum characteristics of binary charts of sole trace pattern images acquired on site and the features of the images in the sample image library; step 2, selecting at least two of the output sole trace pattern images pre-stored in the sample image library according to a predetermined standard, averaging the spectrum characteristics of the selected sole trace pattern images according to the spectrum characteristics of the selected sole trace pattern images, and working out the average spectrum characteristic; step 3, calculating the score of similarity between the average spectrum characteristic and the spectrum characteristic of the binary chart of each sole trace pattern image pre-stored in the sample image library; and step 4, outputting the sole trace pattern images pre-stored in the sample image library according to the score of similarity from high to low.

A method for retrieving nucleic acid fragments, including: providing reduced DNA libraries during sequencing; amplifying nucleic acid fragments from the reduced DNA libraries; and retrieving the amplified nucleic acid fragments. The method further includes acquiring desired nucleic acid fragments among the retrieved nucleic acid fragments. The desired nucleic acid fragments are acquired using sequences having a homology to the barcode sequences, when the amplified nucleic acid fragments are tagged with specific barcode sequences.

The invention discloses a storage method which can achieve amplifying data and which can storage lots of same data loggings which are consist of domain. It has the following steps: (1) choosing a keydomain; (2) establishing and preserving first mapping relation meter of the said key domain data and other non-key domain data in each data logging; (3) quoting weather it is key domain data when increasing data logging's data, if it is key domain data then it preserves the data, if not it preservers the said data logging's key domain data and its corresponding relation in the said first mapping relation meter.

IP addresses included in a route table are segmented so as to be able to be retrieved all together, and are retrieved at a high rate. As means for retrieving the IP address, a pointer table 200, a secondary pointer table, a local table, and a route table are provided, and a table with a numerical value comparing function is also provided when the further segmentation is necessary. In the retrieval for the ACL table, a fixed length data table of fixed length data configured in the ACL table is generated, and the ACL table is retrieved by using a retrieving method for retrieving the route table. Such tables are provided with a table manager 600 as means for efficiently composing and managing the table, and managing to prevent the retrieving operation from being obstructed.