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公开(公告)号：US11250043B2
公开(公告)日：2022-02-15
申请号：US16306077
申请日：2017-06-02
发明人： Nick Van Beest , Ingo Weber
IPC分类号： G06F16/35 , G06F21/55 , G06F16/901 , G06F11/34 , G06F11/30
摘要： This disclosure relates to analyzing log data of a system. This comprises evaluating a first graph model with multiple log events in the log data. The first graph model comprises a first set of nodes connected by a first set of edges representing a first behaviour. A processor determines a first correspondence value based on the first graph model and indicative of a correspondence between the multiple log events and the first behaviour. The processor repeats the steps of evaluating the first graph model for one or more further graph models representing one or more further behaviors and determining the first correspondence value to determine one or more further correspondence values. The processor finally determines a classification of the multiple log events as representing one of the behaviors based on the correspondence values. The use of multiple graph models allows a more granular classification than binary intrusion detection.
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公开(公告)号：US11157927B2
公开(公告)日：2021-10-26
申请号：US15775654
申请日：2016-11-11
发明人： Fang Chen , Yan Xu , Aditya Menon , Chen Cai
摘要： A computer-implemented method, software and system for determining a service demand in a service network are disclosed. A first information indicative of prior proportion knowledge of elements of the service demand is received. Two or more elements of the service demand represent service volumes for two or more pairs of zones and the first information indicates reference relative relationships between the two or more elements of the service demand. Second information indicative of instances of service at specific locations in the service network are received. The service demand is determined by minimising a cost function. The cost function is based on the first information and the second information.
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公开(公告)号：US10965671B2
公开(公告)日：2021-03-30
申请号：US16099801
申请日：2017-05-10
发明人： Dali Kaafar , Hassan Asghar , Jagmohan Chauhan , Jonathan Chan
摘要： Computer-implemented methods, software, and computer systems for authenticating a user. Authentication includes presenting on a first user interface a challenge set of cognitive information elements (400) to the user that comprises a cognitive challenge that has a reference solution based on an intersection of the challenge set of cognitive information elements and a secret set of cognitive information elements. Biometric features of the user can be extracted from a response made by the user to the cognitive challenge on a second user interface, and the user can be authenticated if the biometric feature extracted from the response matches a reference biometric feature.
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公开(公告)号：US10591520B2
公开(公告)日：2020-03-17
申请号：US14398329
申请日：2013-05-23
摘要： An alternating current (AC) power flow analysis in an electrical power network. Based on information relating to buses and transmission lines connecting the buses in the electrical power network, a convex approximation of AC power flows in the electrical power network is determined. The convex approximation of the AC power flows comprises convex approximation of nonlinear cosine terms associated with active power components and reactive power components of the AC power flows. A convex objective function associated with the electrical power network is optimised using the convex approximation of the AC power flows.
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公开(公告)号：US10359291B2
公开(公告)日：2019-07-23
申请号：US15508399
申请日：2014-09-04
发明人： Phillip Kilby , Matthew Robards
摘要： This disclosure relates a processor determining a network map of a transport network by. The processor optimises for each of multiple sets of nodes a travel cost of trips with a start node and an end node in that set. This way, the processor selects from each of the multiple sets one node as a hub. The travel cost is based on whether the start node or end node is the hub. The processor then optimises for each node a direct travel time between that node and a hub to select an optimised hub for that node. Finally, the processor determines a network map comprising the selected hubs connected by a first transport mode and the remaining nodes connected to the selected hub by a second transport mode. Passengers need to change less often at the hub because the hub is placed at the most popular destination or origin.
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公开(公告)号：US10022544B2
公开(公告)日：2018-07-17
申请号：US14904829
申请日：2014-07-22
发明人： Nick Barnes , Xuming He
摘要： This disclosure concerns a method for enhancing vision for a vision impaired user comprises. A processor, such as a controller of a retinal prosthesis, determines based on input image data a shape associated with an object represented by the input image data. The processor then determines for each of multiple areas of the input image data a coverage value that indicates to what extent the shape covers that area of the input image. Each of the multiple areas is associated with one of multiple imaging elements of the retinal prosthesis. The processor then determines an output value for each of the multiple imaging elements of the retinal prosthesis, such that when the output values are applied to the imaging elements to create a visual stimulus, a contrast is perceivable between a first element and a second element based on their respective coverage values.
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公开(公告)号：US20170248432A1
公开(公告)日：2017-08-31
申请号：US15508399
申请日：2014-09-04
发明人： Phillip Kilby , Malthew Robards
CPC分类号： G01C21/3407 , G01C21/32 , G01C21/3453 , G06Q10/04 , G06Q10/047 , G06Q10/06 , G06Q10/0631
摘要： This disclosure relates a processor determining a network map of a transport network by. The processor optimises for each of multiple sets of nodes a travel cost of trips with a start node and an end node in that set. This way, the processor selects from each of the multiple sets one node as a hub. The travel cost is based on whether the start node or end node is the hub. The processor then optimises for each node a direct travel time between that node and a hub to select an optimised hub for that node. Finally, the processor determines a network map comprising the selected hubs connected by a first transport mode and the remaining nodes connected to the selected hub by a second transport mode. Passengers need to change less often at the hub because the hub is placed at the most popular destination or origin.
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公开(公告)号：US09737255B2
公开(公告)日：2017-08-22
申请号：US13120902
申请日：2009-09-29
申请人： Fang Chen , Muhammad Asif Khawaja , Eric Choi
发明人： Fang Chen , Muhammad Asif Khawaja , Eric Choi
CPC分类号： A61B5/16 , A61B5/4803 , A61B5/7264 , A61B5/7267 , A61B5/7475 , G10L15/1815
摘要： This invention concerns measuring cognitive load. A word based input is produced by a person while performing a task (100). Predetermined grammatical features of the word based input are identified (104). Then, the identified grammatical features are weighted and combined to provide a measure indicating the person's cognitive load (106). The use of grammatical features represents a divergence from the known methods of providing a measure of a person's cognitive load. It is an advantage of the invention that by concentrating on the grammatical features it is able to provide an objective, non-intrusive measure of the person's cognitive load. Aspects the invention include a method, a computer system and software that are used to perform the method.
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公开(公告)号：US20170228547A1
公开(公告)日：2017-08-10
申请号：US15500697
申请日：2015-07-31
CPC分类号： G06F21/602 , H04L9/008 , H04L9/0819 , H04L9/085 , H04L63/0428 , H04L2209/34
摘要： This disclosure relates to generating shares of secret data represented by secret data elements based on a first threshold for the number of shares that allow determining the secret data. The shares are determined based on the secret data, one or more random data elements added to the secret data and coefficients of a systematic maximum distance separable (MDS) code. The MDS code has a number of input data elements that is equal to the first threshold and that is also equal to the number of secret data elements plus the number of the one or more random data elements. The method of determining shares can be used for different data sets and multiple pairs of the shares can be generated to allow performing an operation between the first secret data with the second secret data based on distributed processing of each of the multiple pairs.
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公开(公告)号：US20160238438A1
公开(公告)日：2016-08-18
申请号：US14787912
申请日：2013-11-22
发明人： FANG CHEN , Matt ZHANG , Zhidong LI , Yang WANG
CPC分类号： G01H13/00 , G01H1/00 , G01M5/0008 , G01M5/0033 , G01M5/0066 , G01M7/00 , G01M7/025
摘要： The disclosure relates to structural health monitoring (SHM). In particular determining a health condition of a structure, such as a bridge, based on vibration data measured of the bridge. Measured vibration data is calibrated (410-450). Features are then extracted from the calibrated data (610-630) and a support vector machine classifier is then applied (720) to the extracted features to determine (730) the health condition of a part of the structure. Training of the support vector machine classifier by a machine learning process (910) is also described.
摘要翻译： 本公开涉及结构健康监测（SHM）。 特别地，基于桥梁测量的振动数据确定诸如桥梁的结构的健康状况。 测量的振动数据进行校准（410-450）。 然后从校准数据（610-630）提取特征，然后将支持向量机分类器（720）应用于提取的特征，以确定（730）结构的一部分的健康状况。 还描述了通过机器学习过程（910）训练支持向量机分类器。
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