2516 results about "Data accuracy" patented technology

The present invention provides systems and methods for obtaining information from a networked system utilizing a distributed web crawler. The distributed nature of clients of a server is leveraged to provide fast and accurate web crawling data. Information gathered by a server's web crawler is compared to data retrieved by clients of the server to update the crawler's data. In one instance of the present invention, data comparison is achieved by utilizing information disseminated via a search engine results page. In another instance of the present invention, data validation is accomplished by client dictionaries, emanating from a server, that summarize web crawler data. The present invention also facilitates data analysis by providing a means to resist spoofing of a web crawler to increase data accuracy.

A computer-implemented method includes providing a user interface on an internet-protocol (IP) connected mobile device, the user interface configured to receive a user input corresponding to one or more data privacy parameters for geo-location data, and controlling a transferring of geo-location data to and from each of a plurality of mobile applications on the mobile device based on the user input. A change in one or more of the data privacy parameters can change how geo-location data is provided to each of the plurality of applications and can affect location data accuracy, location data reporting frequency, geo-functions, and more. The user interface can be configured to allow a user to view, manage, and delete a personal location history. Furthermore, one or more profiles can be associated with one or more of the plurality of mobile applications, where each of the one or more profiles is assigned individual data privacy parameters.

The invention provides a method for detecting traffic state based on mobile phone signals. A virtual sensor network is set up to acquire the real-time signal data sent from all mobile phones within a time interval from a mobile phone network at a fixed time interval, a virtual sensor section and the traveling speed vi can be obtained according to the real-time signal data sent from an i-th mobile phone; the virtual sensor section is superposed onto a road network to obtain the road network section and the traveling speed Vi of the i-th mobile phone; a real-time traffic flow intensity K and a section traffic flow Q can be obtained by collecting the number n of the mobile phones on each road network section and the traveling speed V of each road network section; and finally, through a traffic parameter prediction model, the predicted traffic flow speed V, the traffic flow intensity K and the section traffic flow Q can be obtained. The method has the advantages that the large range of real-time traffic data acquisition in the city can be completed in a short time by fully relying on the existing mobile communication network resources, and utilizing the information in the existing mobile phone communication network, meanwhile, the initial investment is relatively small, the data coverage is wide, and data accuracy is high.

Automatic and assisted playlist generation is accomplished by collecting data from users of a world-wide music information system. Attributes of the recordings listened to by users are extracted from data collected when the users access the music information system. The attributes are correlated with other attributes in the system to verify data accuracy. Users can specify a set of attributes of their music collection for automatic generation of a playlist. The playlist can then be further edited, even on devices with a limited display and a few buttons designed for playback of recordings, by re-mapping the functions of the buttons for playlist generation.

A method and apparatus for maintaining data accuracy in an access point (AP) location database including a plurality of stored location data are disclosed that can automatically update the AP location database meanwhile maintaining the data accuracy in the database. In some embodiments, the AP location database server receives a first set of location measurements for a first AP from a first mobile device, determines a trustworthiness of the first set of location measurements based on a first comparison between the first set of location measurements and the location data for the first AP stored in the AP location database, and selectively updates the stored location data for the first AP in the AP location database with the received first set of location measurements in response to the determined trustworthiness.

The present invention relates in part to a method for generating a multi-dimensional image of a sample which combines different image capturing modalities with data analysis capability for identifying and integrating the higher accuracy image features captured by each respective modality to yield reconciled image data of higher accuracy and consistency. A system which can be used to perform the method also is included.

The invention discloses atmospheric particulate online monitoring equipment based on a taxi toplight and belongs to the technical field of environmental monitoring. The atmospheric particulate online monitoring equipment comprises a monitoring module, a master control module, a communication module, a positioning module, the taxi toplight and a power supply module, wherein the taxi toplight is fixed at the top of the taxi, and internal electric equipment of the taxi toplight is powered by the power supply module; the monitoring module comprises a PM2.5 sensor, a PM10 sensor and a PM100 sensor, and air inlets of the sensors are connected with one ends of air distribution valves fixed in the taxi toplight through air inlet hoses; the master control module is electrically connected with the other modules; the positioning module is used for positioning the taxi; the communication module is used for realizing connection between equipment under test and the online monitoring system. The equipment utilizes the taxi to carry the particulate sensors to execute measurement in real time, so that the mounting cost of gridding equipment is reduced, maintenance cost is reduced, and data accuracy is improved.

The invention relates to a mode-based dynamic vulnerability discovery integrated system and a mode-based dynamic vulnerability discovery integrated method. The mode-based dynamic vulnerability discovery integrated system comprises a dynamic taint analysis module, a test case selection module, a restraint solving module and a management module. The mode-based dynamic vulnerability discovery integrated method comprises the following steps: firstly, transmitting a seed case to an application program, tracking the transmission of taint data in the program by use of the dynamic taint analysis module, then expressing a transmission track by use of symbols, thereby obtaining a symbolized taint transmission path by virtue of combination of a dynamic taint analysis technology and a symbol execution technology; then by taking the symbolized taint transmission path as input of the restraint solving module, performing restraint solving to obtain a new test case, re-transmitting the test case to the application program, and further performing subsequent operations, wherein the whole process is performed under unified dispatching management of the management module. According to the mode-based dynamic vulnerability discovery integrated system and the mode-based dynamic vulnerability discovery integrated method, the automation degree and efficiency of dynamic vulnerability discovery for a binary program are improved, the generated test data accuracy and the efficiency are high, and thus a fuzzy test process is high in pertinency.

A laser-radar calibration method and a device thereof are disclosed. The method comprises the step of external parameter calibration, wherein the external parameter calibration includes steps that a radar moves along with a vehicle; radar reflection data is collected; the collected data is substituted into a lattice cloud energy equation and an energy equation value is a minimum external calibration parameter through solving. Compared to the prior art, by using the above technical scheme, data returned by the laser radar in real time can be analyzed; a parameter of the laser radar itself can be initiatively corrected so that effects of rapidly correcting the laser radar, increasing scanning data accuracy and increasing a scanning image differentiation degree are reached.

The invention discloses a dynamic roll gap compensation method during cold continuous rolling flying gauge control and belongs to the technical field of automatic control of cold continuous rolling. The method includes a part of roll gap compensation for a welding gap position at the position of a rolling mill inlet front thickness gauge and a part of roll gap compensation for the welding gap position at the positions of all rolling mill outlet thickness gauges. A roll gap adjustment value is determined by a model system of a process computer to a great degree due to the fact that a large part of AGC functions are not introduced during flying gauge control. Therefore, computational accuracy of the model system can directly affect thickness control accuracy during flying gauge control. A practical inlet thickness acquired by using a practical thickness gauge at the position of the rolling mill inlet front thickness gauge is adopted to replace a raw material thickness to improve initial data accuracy for setting a model, and a set value of a roll gap during FGC is corrected according to calculated deviation between a front steel coil roll gap and a back steel coil roll gap so as to improve setting accuracy of the roll gap. More accurate roll force is acquired in the method of dynamic self-adapting at the positions of all the rolling mill outlet thickness gauges, setting accuracy of the roll gap is improved, and then the roll gap value can be compensated during flying gauge control.

The invention discloses a data increment and merging method and a device for achieving the method. The method comprises the steps of putting subarea fields of extracted incremental data in order by setting the subarea fields, confirming specific subarea identifications, performing subarea filtering on a full scale according to the subarea identifications, extracting subarea data tables corresponding to the subarea identifications, then merging the incremental data and the subarea data tables and finally inserting the merged subarea data tables back to the full scale so as to achieve increment and merging. By adopting the data increment and merging method and the device for achieving the method, the data volume of the data increment and merging operation is decreased, computing resources are saved, and meanwhile the data accuracy is improved.

The invention relates to a mobile communication technology, and discloses a method for writing data in a user identification module card and a mobile terminal. In the invention, because a bit in an EF file is used to mark a data record with larger length which is written at present, whether the write of the data record is finished is identified through the bit value. Thus when the mobile terminal or an SIM card is unusual or suddenly power down, the mobile terminal knows that updated data content has been lost partially through the bit value, namely the data record is a wrong data record, so that the data which is updated in the SIM card is judged to an invalid data, and when the mobile terminal or the SIM card is normal or re-electrified, the data can be re-written or selected to be deleted, thereby ensuring the updated data accuracy in the SIM card.

An automated mechanism for measuring the amount of accuracy loss attributable to reverse engineering processes that use 3D scan data is discussed. The embodiments provide a mechanism that displays to a user the effect scan data editing and CAD remodeling operations have on scan data accuracy. Additionally, the user can choose the way the graphical display illustrates the error distribution on the model such as by color mapping and whisker mapping. The accuracy loss may be displayed to the user after finishing an editing/modeling command or during the previewing of the command thereby allowing a user to take appropriate action. Parameters may also be adjusted programmatically based on the amount of accuracy loss determined to be attributable to scan data editing or CAD remodeling operations.

The invention discloses a device state monitoring data quality evaluation system. The system comprises an influence factor analysis module, an evaluation dimension analysis module, a check rule establishment module and an evaluation model building module. According to the system, by analyzing main factors which influence data quality, key characteristics such as data consistency, data accuracy, data integrity, data timeliness and the like are researched, and a data quality evaluation index and a data check rule are established; real-time automatic processing of data quality index calculation, statistical analysis and comprehensive evaluation is realized; and the requirements of the system in performing data quality quantitative diagnosis and evaluation dynamically in real time are met.

The invention discloses a switch cabinet environment intelligent monitoring and processing system based on a wireless network. The switch cabinet environment intelligent monitoring and processing system comprises a server and a plurality of data collectors corresponding to switch cabinets one by one. A wireless temperature and moisture sensor, a controller, a fan and a heater are arranged in each switch cabinet. The controllers receive data of the wireless temperature and moisture sensors and control the fans and the heaters to work, and the data collectors receive data of the wireless temperature and moisture sensors and send the data to the server. The switch cabinet environment intelligent monitoring and processing system can obtain monitoring data automatically, saves labor and materials, obtains monitoring data timely and is high in data accuracy. Once an abnormal condition happens, alarming information can be obtained immediately, corresponding processing on the abnormal condition can be conducted timely, and accidents are avoided.

A method and system for monitoring the integrity of a structure such as a building or a bridge includes taking accelerometer readings using an accelerometer and taking inclinometer readings using an inclinometer. The accelerometer and inclinometer each take readings in at least one axis, with one coincident axis between the two. The accelerometer readings are preferentially sampled at a higher rate than the inclinometer readings. Accelerometer readings verify inclinometer readings, and vice-versa. Using acceleration readings, it can be determined whether, when, and at what frequency inclination readings should be taken. The inclinometer can be powered down as long as accelerometer readings indicate that the environment would strain the inclinometer. Inclinometer readings can also be modified and corrected using inclinometer readings. Data accuracy and reliability are enhanced, and the overall integrity of a structure is dynamically monitored even as the structure and its environment change over time.

A method and apparatus for use with a mobile body navigation system are provided for reducing an amount of position data, expressing successive positions along a route that has been traversed by a mobile body, which are recorded by a data recording section to subsequently provide a route display or are transmitted by radio by a data transmitting section. A position recording judgement section uses one or more judgement criteria to obtain an indication of the degree of accuracy of each of the vehicle positions that are calculated by the navigation system, and enables recording or transmission of only those data that express positions for which the judgement criteria indicate that the corresponding degree of accuracy is sufficiently high.

The invention discloses a verification method and a verification device for data accuracy. The verification method includes acquiring verification rule information related to target tables, wherein the target tables are target data tables needed to be verified on the data accuracy; utilizing the verification rule information related to the target tables to verify the target tables on the data accuracy; and outputting different prompt information according to verification results. By the verification method and the verification device, monitoring and verifying for the data accuracy can be performed timely.

The invention discloses a data constitution method and device and belongs to the field of network communication. The method comprises the following steps: compiling Proto files uploaded by a user to obtain assigned message structures corresponding to assigned message names preset by users; generating Web pages corresponding to the assigned message structures, and filling the data of assigned messages to the Web pages to generate Web page data; converting the Web page data into Json format data; creating assigned message objects according to the Json format data; serializing the assigned message objects and obtaining ProtoBuf data files of the assigned messages. According to the data constitution method and device, the problems that the ProtoBtuf data is higher in constitution cost and poor in data accuracy, the reusability of the ProtoBtuf data is low, and the requirement for the user is high are solved; the process of data construction is simplified, the requirement of the user is lowered, and the efficiency of the data construction and the reusability and the accuracy of the data are improved.