Shanghai Bilibili Technology Co., Ltd.

Shanghai Jiaotong University

Fang Fang

Xiaoshan Lin

Fang Quan Xie

Wanbin Zhang

Zihan Geng

Zhihui Zheng

Dog crate

Techniques for evaluating performance of reviewing events in a network community are described herein. The disclosed techniques include authorizing a first user account to review the events in the network community for a first valid period; monitoring information associated with the first user account reviewing the events in the network community; generating data indicative of review behaviors associated with the first user account during at least a part of the first valid period based at least in part on the information and predetermined parameters of evaluating performance; determining values of a plurality of evaluation coefficients based on the generated data and predetermined rules; and determining a performance evaluation result for the first user account based on the generated data and the values of the plurality of evaluation coefficients.

Performance evaluation in a network community

Techniques for managing and presenting violation events in a network community are described herein. The disclosed techniques include receiving a file containing information indicative of a violation by a user account in the network community who violates community guidelines and storing the file into a violation display pool in response to a determination that a corresponding violation score is greater than a predetermined threshold. The violation display pool comprises a plurality of violation events that each comprise information indicative of a source of a corresponding violation event, at least one attribute of content associated with the corresponding violation event, and information relating to content of the corresponding violation event. A storage server sends the plurality of violation events to a plurality of client computing devices for display via an interface.

Event management and presentation

Techniques for identifying rule violations in a network community are described herein. The disclosed techniques include receiving a report event from a first client computing device, wherein the report event is associated with content and a possible violation and the content comprises one or more comments relative to a plurality of video frames; identifying the content based on the possible violation; sending the content to a plurality of review users, wherein the content is presented and viewable via an interface by each review user; determining whether a voting instruction has been received from each review user during a predetermined period of time; recording a voting instruction from a first review user in a list of voting instructions in response to a determination that the voting instruction has been received during the predetermined period of time; and identifying the possible violation as a violation based on the list of voting instructions.

Identification of rule violations in a network community

The present invention relates to a 2,2',6,6&#x2032;-tetrasubstituted aminophosphine ligand and its synthesis method. The structure of the ligand is shown as below. Its synthesis method comprises: Step (1) coupling 2,6-dinitrochlorobenzene as the starting material to obtain 2,2&#x2032;,6,6&#x2032;-tetranitrobiphenyl; Step (2): hydrogenating the 2,2&#x2032;,6,6&#x2032;-tetranitrobiphenyl with Pd/C to obtain 2,2&#x2032;,6,6&#x2032;-tetraminobiphenyl; Step (3): reacting the 2,2&#x2032;,6,6&#x2032;-tetraminobiphenyl with a phosphine halide to obtain the 2,2&#x2032;,6,6&#x2032;-tetrasubstituted aminophosphine ligand. The ligand of the present invention is an achiral compound, and its preparation method is simple. The ligand can be converted to a chiral bimetallic catalyst with single configuration eventually through introduction of external chirality. Moreover, the ligand can be used in various asymmetric reaction catalyzed by metals with high reactivity and stereoselectivity. 

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Shanghai, China

Fang Fang