Advanced New Technologies Co., Ltd.

Alipay (Hangzhou) Information Technology Co., Ltd.

Kaiming Huang

Lei Yang

Hongbo Cai

Zhe Han

Shiqi Jiang

Xiaobo Zhang

Feng Lin

Xiaodong Zeng

Li Chen

Le Zhou

Wei Zhang

Yuan Cheng

Feng Qian

Chen Jiang

Qing Wang

Xudong Yang

Furong Xu

Tan Pan

Chunlin Fu

The present specification discloses video matching. In a computer-implemented method, a plurality of feature vectors of a target video is obtained. A candidate video similar to the target video is retrieved from a video database based on the plurality of feature vectors of the target video. A time domain similarity matrix feature map is constructed between the target video and the candidate video based on the target video and the candidate video. Using the time domain similarity matrix feature map as an input into a deep learning detection model, a video segment matching the target video in the candidate video and a corresponding similarity is output.

Video matching methods and apparatuses, and blockchain-based infringement evidence storage methods and apparatuses

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for blockchain-based storage of patrol inspection proof are provided. One of the methods includes: receiving proof information of patrol inspection at a patrol inspection site; obtaining one or more operating environment parameters of the mobile terminal at a time of the patrol inspection, wherein the one or more operating environment parameters comprise at least location information and sensor data of the mobile terminal; performing credibility verification on the patrol inspection site based on the proof information, the location information, and the sensor data using an algorithm model based on labeled identification information, labeled operating environment parameters, and historical attendance information; and in response to the credibility verification being successful, uploading verification information associated with the proof information for storing in a blockchain.

Blockchain-based patrol inspection proof storage method, apparatus, and electronic device

A computer-implemented method, non-transitory, computer-readable medium, and computer-implemented system are provided for detecting text similarity. A smart contract for detecting a similarity to a target original text is deployed in a blockchain network. The method is performed by a network node in the blockchain network. A first transaction, including first text, is received, where the first text is text whose similarity to the target original text is to be detected. The smart contract is invoked and text similarity detection logic stated in the smart contract is executed to obtain a detection result of similarity between the first text and the target original text.

Blockchain-based text similarity detection method, apparatus and electronic device

Implementations of the present specification provide an interaction behavior detection method, apparatus, system, and device. The method includes the following: obtaining a to-be-detected depth image photographed by a depth photographing device, extracting a foreground image used to represent a moving object from the to-be-detected depth image, obtaining spatial coordinate information of the moving object based on the foreground image, comparing the spatial coordinate information of the moving object with spatial coordinate information of a shelf in a rack, and determining an article touched by the moving object based on a comparison result and one or more articles on the shelf.

Interaction behavior detection method, apparatus, system, and device

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Hangzhou, China

Kaiming Huang