Search Results for author: Sijia Li

Found 5 papers, 1 papers with code

TTAGN: Temporal Transaction Aggregation Graph Network for Ethereum Phishing Scams Detection

no code implementations28 Apr 2022 Sijia Li, Gaopeng Gou, Chang Liu, Chengshang Hou, Zhenzhen Li, Gang Xiong

In this paper, we propose a Temporal Transaction Aggregation Graph Network (TTAGN) to enhance phishing scams detection performance on Ethereum.

Representation Learning

Scalable Bigraphical Lasso: Two-way Sparse Network Inference for Count Data

1 code implementation15 Mar 2022 Sijia Li, Martín López-García, Neil D. Lawrence, Luisa Cutillo

Unfortunately, the original Bigraphical Lasso algorithm is not applicable in case of large p and n due to memory requirements.

When Creators Meet the Metaverse: A Survey on Computational Arts

no code implementations26 Nov 2021 Lik-Hang Lee, Zijun Lin, Rui Hu, Zhengya Gong, Abhishek Kumar, Tangyao Li, Sijia Li, Pan Hui

The metaverse, enormous virtual-physical cyberspace, has brought unprecedented opportunities for artists to blend every corner of our physical surroundings with digital creativity.

Discussion of Kallus (2020) and Mo, Qi, and Liu (2020): New Objectives for Policy Learning

no code implementations9 Oct 2020 Sijia Li, Xiudi Li, Alex Luedtke

We discuss the thought-provoking new objective functions for policy learning that were proposed in "More efficient policy learning via optimal retargeting" by Nathan Kallus and "Learning optimal distributionally robust individualized treatment rules" by Weibin Mo, Zhengling Qi, and Yufeng Liu.

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