Search Results for author: Shang Liu

Found 11 papers, 7 papers with code

Towards Better Statistical Understanding of Watermarking LLMs

1 code implementation19 Mar 2024 Zhongze Cai, Shang Liu, Hanzhao Wang, Huaiyang Zhong, Xiaocheng Li

We consider the trade-off between model distortion and detection ability and formulate it as a constrained optimization problem based on the green-red algorithm of Kirchenbauer et al. (2023a).

LIST: Learning to Index Spatio-Textual Data for Embedding based Spatial Keyword Queries

no code implementations12 Mar 2024 Ziqi Yin, Shanshan Feng, Shang Liu, Gao Cong, Yew Soon Ong, Bin Cui

With the proliferation of spatio-textual data, Top-k KNN spatial keyword queries (TkQs), which return a list of objects based on a ranking function that evaluates both spatial and textual relevance, have found many real-life applications.

Pseudo Label

UnifiedSSR: A Unified Framework of Sequential Search and Recommendation

1 code implementation21 Oct 2023 Jiayi Xie, Shang Liu, Gao Cong, Zhenzhong Chen

In this work, we propose a Unified framework of Sequential Search and Recommendation (UnifiedSSR) for joint learning of user behavior history in both search and recommendation scenarios.

Self-Supervised Learning

RTLLM: An Open-Source Benchmark for Design RTL Generation with Large Language Model

1 code implementation10 Aug 2023 Yao Lu, Shang Liu, Qijun Zhang, Zhiyao Xie

In this work, we propose an open-source benchmark named RTLLM, for generating design RTL with natural language instructions.

Language Modelling Large Language Model +1

When No-Rejection Learning is Consistent for Regression with Rejection

1 code implementation6 Jul 2023 Xiaocheng Li, Shang Liu, Chunlin Sun, Hanzhao Wang

This paper studies the regression with rejection (RwR) problem and investigates a no-rejection learning strategy that uses all the data to learn the predictor.

regression

Understanding Uncertainty Sampling

1 code implementation6 Jul 2023 Shang Liu, Xiaocheng Li

Uncertainty sampling is a prevalent active learning algorithm that queries sequentially the annotations of data samples which the current prediction model is uncertain about.

Active Learning

Maximum Optimality Margin: A Unified Approach for Contextual Linear Programming and Inverse Linear Programming

1 code implementation26 Jan 2023 Chunlin Sun, Shang Liu, Xiaocheng Li

More importantly, our new approach only needs the observations of the optimal solution in the training data rather than the objective function, which makes it a new and natural approach to the inverse linear programming problem under both contextual and context-free settings; we also analyze the proposed method under both offline and online settings, and demonstrate its performance using numerical experiments.

Computational Efficiency

Non-stationary Bandits with Knapsacks

no code implementations25 May 2022 Shang Liu, Jiashuo Jiang, Xiaocheng Li

Finally, we also extend the non-stationarity measure to the problem of online convex optimization with constraints and obtain new regret bounds accordingly.

Points-of-Interest Relationship Inference with Spatial-enriched Graph Neural Networks

no code implementations28 Feb 2022 Yile Chen, Xiucheng Li, Gao Cong, Cheng Long, Zhifeng Bao, Shang Liu, Wanli Gu, Fuzheng Zhang

As a fundamental component in location-based services, inferring the relationship between points-of-interests (POIs) is very critical for service providers to offer good user experience to business owners and customers.

Ground State and Hidden Symmetry of Magic Angle Graphene at Even Integer Filling

no code implementations5 Nov 2019 Nick Bultinck, Eslam Khalaf, Shang Liu, Shubhayu Chatterjee, Ashvin Vishwanath, Michael P. Zaletel

This low energy manifold is also found in the Hartree-Fock numerical calculation.

Strongly Correlated Electrons Mesoscale and Nanoscale Physics

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