Lei Shi

schoolBeihang Universitybar_chart#5970 Global Rank

Total Papers

HCI Rank

#5970

Research Areas

Years Active

Recent Publications

FDHelper: Assist Unsupervised Fraud Detection Experts with Interactive Feature Selection and Evaluation

Online fraud is the well-known dark side of the modern Internet. Unsupervised fraud detection algorithms are widely used to address this problem. However, selecting features, adjusting hyperparameters, evaluating the algorithms, and eliminating false positives all require human expert involvement. In this work, we des…

CHI '195th+ AuthorInteractive Data Visualization +1

PeerLens: Peer-inspired Interactive Learning Path Planning in Online Question Pool

Online question pools like LeetCode provide hands-on exercises of skills and knowledge. However, due to the large volume of questions and the intent of hiding the tested knowledge behind them, many users find it hard to decide where to start or how to proceed based on their goals and performance. To overcome these lim…

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