International Business Machines Corporation

Beijing Jingdong Century Trading Co., Ltd.

Beijing Jingdong Shangke Information Technology Co., Ltd.

Beijing Wodong Tianjun Information Technology Co., Ltd.

Wen Ting Mo

Wei Sun

Ning Duan

Feng Juan Wang

Zhong Bo Jiang

Ke Hu

Xin Zhang

Zhi Hu Wang

Li Li

Peng Gao

Chunhua Tian

Bao Hua Wang

Xin Zang

Chao Zhang

Wei Shan Dong

Yao Liang Chen

Junchi Yan

Xi Sun

Wen Peng Xiao

Ji Jiang Song

Jiannan Xiong

Lei Bi

The present disclosure relates to a method and device for generating video preview content, a computer device and a storage medium. The method for generating video preview content includes parsing a video to be processed, to obtain all image frames of the video to be processed and generate a list of ordered image frames; processing the list of the ordered image frames by image recognition to filter out a slice header and a slice tail of the video; and generating preview content of the video based on a list of the filtered image frames.

Method and device for generating video preview content, computer device and storage medium

An interface information display method and apparatus are provided. The method includes: in a list display state, if a click on a list item is detected, performing operations including: acquiring object information and a position of the clicked list item; generating a screenshot image of a current page; displaying the screenshot image in full screen, displaying a first mask layer on the screenshot image, and displaying a second mask layer on the first mask layer; shrinking the screenshot image to a predetermined ratio, acquiring an object thumbnail and detailed information from the object information, displaying, in a predetermined size, the object thumbnail on the second mask layer, and displaying the detailed information in a blank area on the second mask layer; and returning to the list display state when an area of the first mask layer non-overlapping with the second mask layer is clicked.

Interface information display method and apparatus

A system and method are provided. The system includes a feature calculator calculates features of a Pressure Volume diagram. The system further includes a pumpjack condition separator separates normal pumpjack conditions from abnormal pumpjack conditions using a hierarchical decision tree, the conditions being determined using the features. The system also includes a compound indicator generator generates a compound indicator when a predetermined number of at least one of features and conditions exceed respective thresholds. The system additionally includes an abnormal PV diagram indicator provides a user-perceptible indication that the PV diagram is abnormal when the compound indicator exceeds a compound indicator threshold.

Identifying abnormal pumpjack conditions

Disclosed are a computer-implemented method for generating a data cube from data, a system and a computer program product. The method comprises selecting a candidate granularity from a plurality of candidate granularities determined for a dimension of the data cube, where a data distribution obtained in the selected candidate granularity satisfies a predetermined condition; and generating the data cube based on the selected candidate granularity for the dimension.

Data cube generation

A method and apparatus for reorganizing display of a railway timetable diagram. A method of reorganizing the display of a railway timetable diagram, including: generating a relational graph by using a multiple of stations in the railway timetable diagram and correlations between the stations; partitioning the relational graph according to a partition rule, where the partition rule reduces lines crossing in at least one page and/or section in at least one page in a reorganized railway timetable diagram, where the lines representing an association between respective stations along a path in the reorganized railway timetable diagram; and displaying a reorganized railway timetable diagram based on a result of the partitioning. An apparatus for reorganizing the display of a railway timetable diagram.

Reorganizing display of a railway timetable diagram

The present invention relates to a switch monitoring method and a switch monitoring system, a railway line management method and a railway line management system. Electric signal of a switch motor during pulling of the switch can effectively reflect status of the switch, when the switch is in a stable state, electric signal of its motor is very steady during pulling of the switch; however, when the switch is in an unstable state, there will be different degrees of fluctuation in electric signal of its motor during pulling of the switch. Thus, the invention may be used to identify state of a switch by monitoring electric signal of a switch motor, and further take different measures based on different states of the switch. With these measures, accidents due to switch failure may be effectively reduced, and train delay time may also be reduced through proper line management.

Switch monitoring and railway line management

A method and apparatus for adjusting wheel diameter by acquiring a current wheel diameter distribution vector; calculating similarity scores between the current wheel diameter distribution vector and known wheel diameter distribution vector clusters to determine a potential wear rate of the current wheel diameter distribution vector; calculating similarity scores between candidate target wheel diameter distribution vectors and the known wheel diameter distribution vector clusters to determine a potential wear rates of the candidate target wheel diameter distribution vectors; and selecting a target wheel diameter distribution vector from the candidate target wheel diameter distribution vectors, such that the reduction of potential wear rate achieved by switching the current wheel diameter distribution vector to the target wheel diameter distribution vector meets a predetermined condition. Future potential wear rates and the amount of grinding required during train maintenance can be optimized through changing wheel diameter distribution vectors.

Adjusting wheel diameter

An apparatus for tuning a parameter of a Kalman filter in a wheel inspection for a vehicle is disclosed. The apparatus includes an association module that associates wheel inspection data of the vehicle with locations of corresponding wheels in the vehicle; an evaluation module that evaluates a wheel stable score of the vehicle based on the wheel inspection data and the association, where the wheel stable score indicates reliability of the wheel inspection; and a parameter tuning module that tunes a measurement error covariance of the Kalman filter according to the evaluated wheel stable score.

Tuning parameter of Kalman filter in a wheel inspection

A method for tuning a parameter of a Kalman filter in a wheel inspection for a vehicle. The method includes: associating wheel inspection data of the vehicle with locations of wheels in the vehicle; evaluating a wheel stable score of the vehicle based on the wheel inspection data and the association, wherein the wheel stable score indicates reliability of the wheel inspection; and tuning measurement error covariance of the Kalman filter according to the evaluated wheel stable score. By using the method, the parameter of the Kalman filter can be dynamically tuned to enable the Kalman filter to filter more accurately to ensure the correct result of the wheel inspection. In addition, an apparatus for tuning a parameter of a Kalman filter and a wheel inspection system for a vehicle are disclosed.

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Shanghai, China

Wen Ting Mo