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150 results about "Independent data" patented technology

Independent Data means, with respect to the Licensed Products, all data, including without limitation, toxicological, pharmaceutical, clinical, non-clinical and medical data, health registration data and marketing data, developed by a Sponsoring Party or its Associates in an Independent Trial in respect...

Heterogeneous storage-oriented hot and cold data management method and system

A heterogeneous storage-oriented hot and cold data management method and system, wherein hot and cold data are managed by means of the following steps: at table granularity, storing data from each table into an independent data bucket in the form of object storage, each data bucket comprising a plurality of partitions, the data being randomly distributed in each partition, and the consistency of replicas of the partitioned data being ensured by means of a distributed consensus algorithm; collecting statistics about the access frequencies of the partitions in one data bucket; when the access frequency of one partition reaches a set threshold, adding a new replica to a target storage medium by means of a membership change in the distributed consensus algorithm; and when data synchronization between the new replica and an old replica is completed, detecting the old replica. In this way, the migration of the partitioned data on different storage media is realized, and data cooling and heating are implemented. The method and system can maximize the use efficiency of high-performance storage media, ensure the access efficiency of users, and can reduce the costs of data migration and maintenance.
Owner:HANGZHOU OPENPIE TECH DEV CO LTD

Hadoop cluster incremental backup recovery method based on data block optimization

The invention provides a Hadoop cluster incremental backup recovery method based on data block optimization, and relates to the technical field of data management, and the method comprises the following steps: obtaining distribution state information and historical change records of data blocks in a distributed file system, extracting space-time correlation characteristics, and constructing a data block dependency graph containing dependency direction and dependency intensity; identifying the changed data blocks, performing topological sorting, and identifying key path data blocks and independent data block clusters; calculating a distribution entropy value according to a copy distribution position, and determining a backup granularity type; a backup execution sequence is generated according to a topological sorting result, key path data blocks are backed up preferentially, independent data block clusters are backed up in parallel, and backup metadata containing dependency relationship identifiers and distribution entropy values are generated; and performing dependency consistency verification after recovery based on the dependency relationship identifier. According to the method, the backup recovery efficiency is improved, the data consistency is guaranteed, and the storage overhead is reduced.
Owner:北京科杰科技有限公司

Micro-service architecture system based on business function and data double isolation

The invention relates to a micro-service architecture system based on business function and data double isolation, and the system comprises a business function splitting module which splits a single application into independent micro-services; the data physical isolation module is used for distributing an independent database instance for each micro-service; the dynamic routing control module is used for dynamically distributing flow through a load sensing strategy and integrating a fusing mechanism; and the gray release module supports flow hierarchical diversion and abnormal automatic rollback, and ensures safe switching of service versions. According to the invention, by realizing double isolation of service functions and data, the independence and the expandability of the system are improved, and the data coupling degree and the maintenance cost are reduced; the stability and reliability of the system are ensured, and the risk in the migration process is reduced; according to the method, rapid iteration and continuous delivery can be realized, the development and deployment period of new functions is accelerated, and the user experience is improved through efficient service governance and data consistency guarantee, so that the system can better cope with challenges of high concurrent access and distributed transaction processing.
Owner:HEBEI TONGFU SHARING TECHNOLOGY CO LTD

Data migration method, data migration processing device, chip and electronic equipment

The invention provides a data migration method, which is applied to a data migration processing device and comprises the following steps: polling each cache region of a doorbell cache, determining a target accelerator corresponding to an accelerator identifier under the condition that the accelerator identifier is acquired from a target cache region, and acquiring a first target address of first target data from the target cache region; the first target data is to-be-moved data, and the accelerator identifier and the first target address are sent by the host; and sending a first data migration instruction carrying the first target address and the address of the target accelerator to the DMA, so that the DMA migrates the first target data from the host to the target accelerator. The independent data migration processing device is used for controlling DMA to achieve cache space management, participation of a CPU can be reduced, CPU resource consumption caused by cache management is reduced, the cache management process and the CPU are further decoupled, and the flexibility of accelerator cache space management is improved. The invention further provides a data migration processing device, a chip and electronic equipment.
Owner:SANECHIPS TECH CO LTD

Nerve patient rehabilitation training method based on task training and brain-computer interaction

The invention discloses a neural patient rehabilitation training method based on task training and brain-computer interaction, and belongs to the technical field of rehabilitation training. The method comprises the following steps: acquiring data signals of a patient in current rehabilitation training in real time, performing segmentation processing to obtain a plurality of independent data blocks, performing frequency domain conversion on the independent data blocks, extracting time-frequency features, and calculating KL divergence between adjacent data blocks; if the KL divergence of any adjacent independent data block is larger than or equal to a preset threshold value, historical data signals are obtained, the motion decoding model is corrected, motion decoding is carried out on the patient according to the corrected motion decoding model, rehabilitation training is carried out on the patient according to the motion decoding model, and rehabilitation training is carried out on the patient. According to the method, the corresponding model is selected according to the current rehabilitation training task, dynamic adjustment is performed in combination with real-time signal features, high matching of the decoding result and the training target is ensured, and the rehabilitation training effect of the patient is improved.
Owner:FUJIAN ZHIYUAN INTELLIGENT INNOVATION TECHNOLOGY CO LTD +1

Multi-terminal user data security grading protection system

The invention discloses a multi-terminal user data security grading protection system, which comprises three independent data storage domains, namely a user terminal, a platform terminal and a hospital terminal, the user side is configured to store personalized data and interaction records; the platform end is configured to encrypt and store operation data and non-sensitive data in a partition manner by using a user identity identifier; the hospital end is configured to uniquely store sensitive diagnosis and treatment data and prohibit transmission of a complete data copy to an external domain; the user side obtains the authentication token issued by the platform side through two-factor authentication; when the user side accesses the data of the hospital side, the hospital side sends an authentication token to the platform side to verify the identity legality, and if the verification is passed, a desensitization data index is returned; and generating a dynamic access link based on the index, so that a user can check the non-downloadable data rendered by the hospital end page service within a limited time through the access link. According to the method, the privacy leakage risk is reduced, redundant cache is effectively eliminated, and the cost of multi-place storage is reduced.
Owner:SHENZHEN MENGWANG IOT TECH DEV CO LTD

Three-layer micro-service architecture design and deployment method

The invention discloses a three-layer micro-service architecture design and deployment method, which comprises the following steps of: constructing a service registration layer, and deploying a registration center to obtain a service registration information set; service discovery, routing distribution, load balancing and fusing control are executed based on the service registration information set, and a service governance configuration set is constructed; deploying a decoupled function service module, and configuring an independent database and cache to form a micro-service operation system structure; establishing a configuration management mechanism, and generating a configuration change request information set; based on the configuration change request information set, training a batch ordered lifting CatBoost model, and outputting configuration risk level information; obtaining hybrid deployment result information based on the micro-service operation system structure and the configuration risk level information; and constructing a full-link tracking mechanism based on the service governance configuration set and the service deployment topological structure to obtain an operation observation information set. According to the invention, a three-layer architecture and risk prediction are adopted, and stable and intelligent deployment of micro-services is realized.
Owner:HANGZHOU GUOYAN INFORMATION TECH CO LTD

Data retrieval method based on multivariate matrix fusion

The invention relates to the technical field of data retrieval, in particular to a data retrieval method based on multivariate matrix fusion, which comprises the following steps: S1, multivariate classification: dividing a whole group of source data into a plurality of independent data elements according to a unified classification standard by defining a classification dimension, and controlling the classification granularity, namely the classification thickness in the classification process, the granularity is ensured to be reasonable through consistency verification, and a two-dimensional matrix construction basis is established for subsequent elements; s2, constructing a matrix, and obtaining independent data elements based on the multivariate classification in S1; s3, similar interval judgment based on the multi-type matrix constructed in S2; according to the scheme, data elements are split according to a unified standard, a multi-type matrix is constructed, instruction analysis and similar interval judgment are standardized, similarity levels are calculated in a weighted fusion mode, and an optimization result is presented, so that structured processing of multi-dimensional data, precise collaborative retrieval and decision-making auxiliary support are achieved; the problems that a retrieval method lacks systematic classification in data processing and is insufficient in multi-dimensional collaboration are solved.
Owner:SUZHOU HEINQI INFORMATION TECH CO LTD

Voice-driven information recording and checking method, device, equipment and medium

The invention relates to the technical field of voice processing, can be applied to business scenes of financial science and technology, medical health and the like, and discloses a voice-driven information recording and checking method, device, equipment and medium. Key fields are extracted by applying a semantic analysis strategy to form preliminary structured data, an independent data system is connected to verify authenticity and generate data conflict information, and automatic error correction is executed based on the conflict information to generate updated structured data; and according to the user role matching output template, filling the template with the updated structured data to generate display content, and pushing the display content to target terminal equipment. Structured data generation is realized through voice input and semantic analysis, the data accuracy is improved by combining cross-system verification and automatic error correction, personalized display and real-time pushing are realized by utilizing a role matching template, and a closed loop of acquisition, verification and display is formed, so that the efficiency of information recording and management is improved.
Owner:PING AN TECH (SHENZHEN) CO LTD

Data acquisition method and system, electronic equipment and storage medium

The embodiment of the invention provides a data collection method and system, electronic equipment and a storage medium, and is applied to the technical field of industrial communication. According to the data acquisition method and system, the electronic equipment and the storage medium provided by the embodiment of the invention, the register objects with the same acquisition period, the same slave station ID, the same function code and continuous register addresses are aggregated in the same second register aggregation group, and the data request frame is generated for the same second register aggregation group; the register objects in the second register aggregation group can share one data request frame. Compared with the prior art in which each register object generates an independent data request frame, the data acquisition method and device have the advantages that the number of the data request frames can be obviously reduced, so that excessive system resources are prevented from being occupied, and the data acquisition efficiency is further improved.
Owner:XIAMEN MILESIGHT IOT CO LTD

Internet of Things event center distributed alarm processing method based on Redis Stream

The invention provides an Internet of Things event center distributed alarm processing method based on Redis Stream, belongs to the field of Internet of Things (IoT) data processing, and realizes millisecond-level event processing by utilizing the high-performance streaming consumption capability of the Redis Stream and combining a distributed rule matching engine and a cross-device data dynamic association mechanism. Comprising the following steps that: Internet of Things terminal equipment writes data into Redis Stream according to a stream: Model: DeviceId mode to form an independent data stream; an event consumer reads the data from the stream, performs matching based on a preloaded rule, and supports cross-device linkage calculation through a metadata relation table and an SQL template; real-time duplicate removal and full-life-cycle management are carried out on alarm events through a dual convergence mechanism based on a database and a cache, and repeated alarms are eliminated; and finally, through multi-channel push and push state write-back, a closed-loop alarm system is constructed. The system adopts a layered architecture, comprises an event acquisition layer, a rule processing layer, an event management layer, a push service layer and an asynchronous processing layer, has the characteristics of high throughput, strong orderliness and high reliability, and can effectively improve the alarm processing efficiency and accuracy in a large-scale Internet of Things scene.
Owner:浪潮智慧城市科技有限公司

Personal carbon footprint real-time visual feedback system based on multi-source data fusion

The invention relates to the technical field of carbon emission, and discloses a multi-source data fused personal carbon footprint real-time visual feedback system, which comprises a data acquisition module used for acquiring multi-source heterogeneous data from a plurality of independent data sources and representing user behaviors in real time; the processing module is connected with the data acquisition module and is used for carrying out real-time estimation on a composite state vector based on a preset state space model according to the multi-source heterogeneous data, and the composite state vector at least comprises a current activity state of a user and personalized carbon emission factors representing emission characteristics of the user; and calculating the personal carbon footprint based on the estimation result of the composite state vector. According to the method, the unified dynamic state space model is constructed, and the activity state, the physical parameters and the personalized emission factors of the user are integrated into the composite state vector for joint real-time estimation, so that the real-time performance, the continuity and the accuracy of personal carbon footprint accounting are remarkably improved.
Owner:NANJING DIGITAL NETWORK TECHNOLOGY CO LTD

Industrial chain logic deduction method, computer equipment and program product

The invention discloses an industrial chain logic deduction method, computer equipment and a program product, and the method comprises the steps: constructing a data asset library which comprises charts, data indexes and research reports as independent data assets; the method comprises the following steps: constructing a visual editing framework based on a Web technology, wherein the framework provides a predefined graphic element library and canvas; in the canvas, dragging elements in the graphic element library and establishing connection to construct an industrial chain logic deduction graph; carrying out association binding on nodes in the logic deduction graph and charts, data indexes or research reports in a data asset library; and performing logic deduction and demonstration in response to user operation based on the bound logic deduction graph. By supporting interactive demonstration and path multiplexing based on the logic deduction graph, effective transmission of analysis thoughts and continuous precipitation of knowledge are realized, and the depth and efficiency of industrial chain research are comprehensively improved.
Owner:COAL OPERATION BRANCH OF STATE ENERGY INVESTMENT GRP CO LTD

An anti-virus peptide prediction method and system based on federated learning and neural network

The application discloses an antiviral peptide prediction method and system based on federated learning and a neural network, utilizes multiple independent data sets to respectively perform training on a prediction model, constructs a double-channel deep neural network through the model, extracts features of different dimensions from original variable-length sequence data, analyzes peptide segment sequences from two aspects of sequence data and evolution levels, and finally transmits model gradients and parameters obtained to an intermediate server through encryption technology; the server aggregates the transmitted model parameters to form an intermediate model without contacting the data itself; the server transmits parameters of the intermediate model to participants, completes updating of participant models, and the above steps are circularly performed until model training is completed. The combination of federated learning and the neural network can accurately and quickly predict the antiviral activity of peptide segments under the premise of guaranteeing data security.
Owner:NANJING TECH UNIV

Centralized product catalog with standardization from independent data sources

Systems, methods, and other embodiments associated with a centralized product catalog with standardization from independent data sources are described. In one embodiment, a computing system is configured to access and download product information for a plurality of products that is maintained in a non-standard format. Metadata is identified and extracted. Feature vectors may be generated from the metadata and used to predict and assign class codes to products. The product attributes are extracted from each product, which include a non-standard product description. The non-standard product description is converted into a standardized text description. Standardized records are generated for each product record and a centralized database is generated with the standardized records.
Owner:ORACLE INT CORP

Method and system for monitoring complex environment of dangerous goods vehicle based on satellite positioning

The invention discloses a dangerous goods vehicle complex environment monitoring method and system based on satellite positioning, and relates to the technical field of vehicle monitoring, and the method comprises the steps: obtaining the historical monitoring data of a dangerous goods vehicle, and carrying out the information extraction to obtain historical satellite positioning data, historical dangerous goods vehicle motion data and historical geographical environment data; constructing a combined positioning module according to the historical satellite positioning data and the historical dangerous goods vehicle motion data; according to the combined positioning module and the historical geographical environment data, constructing a risk assessment early warning model; and obtaining current satellite positioning data, current dangerous goods vehicle motion data and current geographical environment data, and inputting the data into the risk assessment early warning model to obtain a risk assessment early warning result to perform complex environment monitoring on the dangerous goods vehicle. The problems that a traditional monitoring method is insufficient in positioning continuity, single in risk assessment and mutually independent in data information are solved, and multi-dimensional and intelligent risk assessment early warning of the dangerous goods vehicle in a complex environment is achieved.
Owner:HAINAN PENGHUWAN TECHNOLOGY CO LTD

Quality optimization method for offshore multi-source space-time monitoring data

PendingCN121765205AData setMulti source data
The invention relates to a quality optimization method for offshore multi-source space-time monitoring data. The method comprises the following steps: acquiring an offshore multi-source space-time monitoring data set; constructing a multi-level evaluation index system; determining the weight of each index in the evaluation index system; obtaining a quality score of each independent data sample; multi-source data collaborative quality evaluation is carried out through a two-stage fusion strategy; and screening the original monitoring data according to the comprehensive quality evaluation, constructing an optimal data set oriented to a specific application scene, inputting the optimal data set into the application model, and outputting an environmental element inversion result. The method has the advantages that progressive quality optimization from samples to platforms and then to application results is achieved in a unified framework, low-quality samples can be effectively removed, and the utilization efficiency of multi-source data and the accuracy of inversion results in offshore ecological environment monitoring can be improved.
Owner:NINGBO UNIV

Consumer-level equipment-oriented distributed file system and data security management method thereof

The invention discloses a distributed file system oriented to consumer-level equipment and a data security management method of the distributed file system, and belongs to the technical field of computer systems. The system comprises a virtual namespace management module used for maintaining a virtual namespace tree formed by combining a local main namespace tree and a remote snapshot sub-tree; the access control and encryption module is used for executing access control based on the attribute set of the virtual namespace tree nodes; and the data processing pipeline module is used for partitioning the file and realizing pipeline operation of transmission and decryption through independent data flow and control flow channels. According to the invention, the access control and the encryption strategy are tightly coupled based on the unified attribute set, so that file re-encryption is not needed when the authority is changed, and the system flexibility is improved; and the security operation delay is hidden through data partitioning and pipeline processing, so that the file access efficiency is improved, and the problem of balance among security, flexibility and high efficiency of the distributed file system of the consumption equipment is effectively solved.
Owner:CHONGQING INST OF EAST CHINA NORMAL UNIV +1

Intelligent monitoring system for stress and seepage of water gate structure

The application discloses a water gate structure stress and seepage flow intelligent monitoring system, and belongs to the technical field of water conservancy projects.The system comprises a stress monitoring module, a seepage flow collecting module and a data processing and analysis module.The stress monitoring module is used for monitoring the stress change of the water gate, including the stress change of key parts, wherein the key parts include a gate pier, a gate and a breast wall.The seepage flow collecting module is used for collecting the seepage pressure and seepage flow of the water gate.The data processing and analysis module is used for processing the stress change, seepage pressure and seepage flow, including cleaning and correction.The application can monitor the stress change of the key parts of the water gate, collect the seepage pressure and seepage flow, obtain more comprehensive and accurate monitoring data, and perform fusion processing on the data, so that the limitation of relatively independent data in traditional monitoring is broken, mutual verification and supplement among the data are realized, the safety state of the water gate is comprehensively evaluated from multiple dimensions, and the accuracy and reliability of monitoring are improved.
Owner:山东黄河顺成水利水电工程有限公司

Data customization production delivery method and system based on block chain and cloud

The invention discloses a data customization production delivery method and system based on a block chain and cloud, and relates to the technical field of data processing and information security, and the method comprises the steps that a data customization party and a production party register and bind a public chain address in the system; deploying an intelligent contract with an automatic fund transfer function on a public chain based on the transaction demand; the customization party prepares a production environment, including creating a production cloud container and a cloud database, and generating an asymmetric key pair; the producer completes data production in the isolated cloud container, encrypts the whole-process data by using the public key of the customizing party and stores the encrypted data into the private block chain; and the system then starts an independent data verification container, decrypts the data by using a built-in private key, carries out integrity comparison and quality verification, and automatically triggers an intelligent contract to carry out settlement according to a verification result. The problems that the data is easy to reuse, the ownership is unclear and the settlement efficiency is low in data customization production are effectively solved, and safe, credible and efficient data production and delivery are realized.
Owner:HEFEI DAZHIHUI CAIHUI DATA TECH CO LTD

Unified label index library construction method based on multi-dimension application field

The invention discloses a unified label index library construction method based on a multi-dimensional application field, and relates to the technical field of financial data management. The method comprises the following steps: extracting a general rule, establishing a reusable label index template, and intensively constructing three types of basic libraries; integrating real-time data of the message center of the head office and local data sources of the branches, and synchronizing customer transaction data by everyday increment ETL; a unified real-time query interface is provided, the real-time query interface is packaged through an Flink + ES engine, and all target data are returned through a single request; setting an independent data item space, a control data authority, sensitive information desensitization processing and a parameterized flexible configuration interface for each branch; and establishing a causal chain between metadata and a future trend thermodynamic diagram based on the business application timeliness iteration library content. According to the unified label index library construction method based on the multi-dimensional application field, the problems of fragmentation, low timeliness and high security risk of branch data assets are solved, and'sharing reuse and business technology fusion 'of data are realized.
Owner:CHINA CONSTR BANK CORP (FUJIAN BRANCH)

Unauthorized business asset discovery method and system based on multi-source log

The invention discloses an unauthorized business asset discovery method and system based on a multi-source log. The method comprises the following steps: determining a first network entity based on heterogeneous security logs of different data sources; when it is determined that the first network entity does not exist in the configuration management database CMDB, determining that the first network entity is a suspicious network entity; and when it is determined that the suspicious network entity appears in at least two independent data sources, the activity in a preset time window meets a preset persistence condition, and a service port exists, determining that the suspicious network entity is a persistent unauthorized service asset. Therefore, through multiple independent data source conditions, activity persistence conditions and service port conditions, suspicious target entities related to transient temporary connection are excluded, and persistent unauthorized business assets are accurately identified.
Owner:BEIJING YOUTEJIE INFORMATION TECH

Knowledge hypergraph-based power system query method and related equipment

The invention discloses a knowledge hypergraph-based power system query method and related equipment, and the method comprises the steps: obtaining a description document and a data file of a power system, and generating a power system knowledge graph; analyzing each independent data card in the data file, converting each independent data card into a corresponding hyperedge, connecting the hyperedge with all entity nodes related to the corresponding card to form a power system multivariate relation knowledge hypergraph, and converting the hypergraph into a power system bipartite graph for storage; when a query instruction is received, entity nodes matched with key entities in the query instruction and hyperedge nodes related to semantics are retrieved in the bipartite graph of the power system, and after a context subgraph is constructed through bidirectional expansion, a language model is input to generate a query feedback result. The problems that a traditional mode is poor in expansibility, information is lost, retrieval is low in efficiency and answers are fuzzy are solved, and construction efficiency, association integrity, retrieval performance and query accuracy are greatly improved.
Owner:ELECTRIC POWER RES INST CHINA SOUTHERN POWER GRID CO LTD +1

Chaotic watermark-based network attack event traceability processing method and device, and medium

The invention discloses a chaos watermark-based network attack event traceability processing method and device and a medium, and relates to the technical field of industrial Internet of Things security, and the method comprises the steps: calculating an uncertainty index of a device behavior based on real-time data, judging a potential attack behavior, and generating an attack judgment mark and an abnormal conduction path; according to the attack judgment mark and the abnormal conduction path, a chaotic encryption watermark is embedded in a control instruction sent to an actuator, and a control instruction stream carrying the watermark is obtained; the actuator responds to the control instruction stream carrying the watermark to complete operation, monitors a deviation value between an execution result and an expected physical behavior, and generates an execution deviation value and watermark feedback data; attack source coordinate information is generated based on the execution deviation value and the watermark feedback data, an attack path map is generated, and a traceability report is pushed; according to the method, the sensor real-time data is divided into the independent data sequence groups, so that the defect of the existing method in the aspect of real-time performance is overcome.
Owner:JIANGSU ELECTRIC POWER INFORMATION TECH

Road slope landslide debris flow disaster identification method, device, equipment and medium

The invention relates to the field of geological disaster recognition, in particular to a road slope landslide debris flow disaster recognition method, device and equipment and a medium. According to the invention, through the high-spatial-resolution optical remote sensing image of the highway slope in the alpine and valley region and DEM data in the same region, deep fusion of spectral features of the optical image and DEM elevation features is realized through the cross-modal cycle fusion module, and texture damage and earth surface deformation information of landslide debris flow can be captured at the same time. Meanwhile, when the optical image is seriously covered by cloud snow, the DEM data branch can be used as an independent data source for identification, and continuity and stability of identification work are guaranteed. According to the method, two kinds of remote sensing data with different modes and information complementation are organically combined, the accuracy of landslide debris flow geological disaster recognition is improved, the requirement for rapid general survey of disaster points along highways and major engineering areas in alpine and valley areas can be met, the manual workload can be reduced, and the working efficiency is improved.
Owner:CCCC FIRST HIGHWAY CONSULTANTS CO LTD

A neural patient rehabilitation training method based on task training and brain-computer interaction

The application discloses a kind of neural patient rehabilitation training methods based on task training and brain-computer interaction, belong to rehabilitation training technical field, specifically include: based on the motion decoding model corresponding to the training task machine;Real-time acquisition data signal in current rehabilitation training of patient and carry out segmented processing, obtain several independent data blocks, carry out frequency domain conversion to independent data block, extract time-frequency feature and calculate the KL divergence between adjacent data blocks;If the KL divergence of any adjacent independent data block exists is greater than or equal to preset threshold, then obtain historical data signal and modify the motion decoding model, according to the motion decoding model after modification to the patient motion decoding, according to this to patient carries out rehabilitation training, the present application is selected corresponding model according to current rehabilitation training task, dynamic adjustment is combined with real-time signal characteristics, ensure that decoding result and training target are highly matched, improve the rehabilitation training effect of patient.
Owner:FUJIAN ZHIYUAN INTELLIGENT INNOVATION TECHNOLOGY CO LTD +1

Federal learning and differential privacy training method and system for medical multi-center data and storage medium

The invention provides a medical multi-center data-oriented federated learning and differential privacy training method and system and a storage medium, which are suitable for carrying out joint modeling on highly sensitive medical data, and can be used for carrying out joint modeling on the highly sensitive medical data on the premise of ensuring that the original data are not out of the local. Tasks of disease prediction, typing, risk assessment and the like of NMR (nuclear magnetic resonance) spectrum data and multi-omics-clinical data fusion are realized, and the comprehensive requirements of medical data privacy protection, model auditing and cross-mechanism generalization ability are met. The model discrimination performance close to centralized training can be realized on the premise of not converging original data; differential privacy protection with strict mathematical guarantee is provided, and compliance requirements that epsilon is smaller than or equal to 2.0, delta is equal to 1 * 10 <-5 > and the like are met; the calibration and generalization ability of the model on external independent data are remarkably improved; the communication burden is reduced, and the fault-tolerant capability for the offline of the client is enhanced; a whole-process traceable and auditing training system is constructed, and third-party supervision verification is supported.
Owner:PROTEINT (TIANJIN) BIOTECHNOLOGY CO LTD

System and method for secure matching and linking of data elements across independent data systems

A methods, systems, and devices for secure linking and matching of data elements across independent data systems of a first and a second enterprise are disclosed. The system includes a first private data system having a first private database that may include all attributes known to the first enterprise A reference data system having a reference database and is also part of the first enterprise. The reference database may contain a plurality of identity data records that only contain identity attributes that are used for resolving and verifying identities of unknown data records that are external to the reference data system. A first set of query attributes may be used determine whether a subject represented by the first set of query attributes associates uniquely with a subject of any private data record stored in the first private database. A similar comparison may be made in the reference database.
Owner:VERATO

Construction method and application of safety evaluation risk prediction model after child medication marketing

The invention discloses a construction method and application of a safety evaluation risk prediction model after child medication marketing, and the method comprises the steps: constructing a three-level index system, and determining the weight of each level of index through an analytic hierarchy process; based on the three-level index system, determining a risk feature set, constructing a three-level model architecture, and performing model training by adopting a machine learning algorithm; collecting multi-source real world data, and establishing a standardized data pool; the performance of the model is improved through hyper-parameter optimization and integrated learning, the performance of the model is verified and evaluated by adopting internal cross validation and an external independent data set, and the transparency of the model is enhanced through an interpretability technology; and establishing a dynamic updating mechanism, deploying the model as a cloud API service, and realizing risk prediction and early warning functions. According to the invention, multi-source real world data can be effectively integrated, the children medication safety risk can be accurately identified, the method is used for safety evaluation after children medication is listed, and the method is of great significance to supplement clinical test insufficiency before children medication is listed, reduce medication risk and guarantee children medication safety.
Owner:DRUG EVALUATION CENT OF THE STATE DRUG ADMINISTRATION (NAT CENT FOR ADVERSE DRUG REACTION MONITORING)

Data storage method, device, equipment and storage medium

The application discloses a data storage method and device, equipment and storage medium, and relates to the technical field of data storage. The method comprises the following steps: performing redundancy detection on new data, determining the redundancy position of the new data; segmenting the new data based on the redundancy position to obtain redundancy data and independent data; comparing the redundancy data with library data in a redundancy library, determining the index value of the redundancy data when the comparison is consistent; inserting the index value into the redundancy position, fusing and compressing the index value and the independent data to obtain compressed data, and storing the compressed data on a disk. Through the above method, the repeated data in the new data is replaced, the repeated part of the new data is replaced by the index value corresponding to the repeated data, the repeated data is stored once and referenced multiple times, the storage resource occupation is reduced, the utilization rate of the storage resource is improved, and more data can be stored.
Owner:CHINA IND INTERNET RES INST