Search Results for author: Linjie Xu

Found 8 papers, 4 papers with code

Protecting Your LLMs with Information Bottleneck

no code implementations22 Apr 2024 Zichuan Liu, Zefan Wang, Linjie Xu, Jinyu Wang, Lei Song, Tianchun Wang, Chunlin Chen, Wei Cheng, Jiang Bian

The advent of large language models (LLMs) has revolutionized the field of natural language processing, yet they might be attacked to produce harmful content.

Mildly Constrained Evaluation Policy for Offline Reinforcement Learning

1 code implementation6 Jun 2023 Linjie Xu, Zhengyao Jiang, Jinyu Wang, Lei Song, Jiang Bian

Offline reinforcement learning (RL) methodologies enforce constraints on the policy to adhere closely to the behavior policy, thereby stabilizing value learning and mitigating the selection of out-of-distribution (OOD) actions during test time.

Offline RL reinforcement-learning +1

Relabeling Minimal Training Subset to Flip a Prediction

no code implementations22 May 2023 Jinghan Yang, Linjie Xu, Lequan Yu

When facing an unsatisfactory prediction from a machine learning model, users can be interested in investigating the underlying reasons and exploring the potential for reversing the outcome.

Binary Classification

Elastic Monte Carlo Tree Search with State Abstraction for Strategy Game Playing

1 code implementation30 May 2022 Linjie Xu, Jorge Hurtado-Grueso, Dominic Jeurissen, Diego Perez Liebana, Alexander Dockhorn

In this paper, we propose Elastic MCTS, an algorithm that uses state abstraction to play strategy games.

Portfolio Search and Optimization for General Strategy Game-Playing

1 code implementation21 Apr 2021 Alexander Dockhorn, Jorge Hurtado-Grueso, Dominik Jeurissen, Linjie Xu, Diego Perez-Liebana

Portfolio methods represent a simple but efficient type of action abstraction which has shown to improve the performance of search-based agents in a range of strategy games.

Generating Diverse and Competitive Play-Styles for Strategy Games

no code implementations17 Apr 2021 Diego Perez-Liebana, Cristina Guerrero-Romero, Alexander Dockhorn, Linjie Xu, Jorge Hurtado, Dominik Jeurissen

Designing agents that are able to achieve different play-styles while maintaining a competitive level of play is a difficult task, especially for games for which the research community has not found super-human performance yet, like strategy games.

Decision Making

Deep Multi-Task Augmented Feature Learning via Hierarchical Graph Neural Network

1 code implementation12 Feb 2020 Pengxin Guo, Chang Deng, Linjie Xu, Xiaonan Huang, Yu Zhang

The proposed feature augmentation strategy can be used in many deep multi-task learning models.

Multi-Task Learning

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