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Xishan Zhang

21 accepted papers

2026

Code Driven Planning with Domain-Adaptive Selector

ICLR 2026poster

Large Language Models (LLMs) have been widely adopted as task planners for AI agents in sequential decision-making problems, leveraging their extensive world knowledge. However, the gap between their general knowledge and environment-specific requirements often leads to inaccurate plans. To address…

Cited by 0SourceScholar
2026

Efficient Diffusion Planning with Temporal Diffusion

AAAI 2026technical

Diffusion planning is a promising method for learning high-performance policies from offline data. To avoid the impact of discrepancies between planning and reality on performance, previous works generate new plans at each time step. However, this incurs significant computational overhead and leads

Cited by 0SourcePDFScholar
2026

StepFun-Formalizer: Unlocking the Autoformalization Potential of LLMs Through Knowledge-Reasoning Fusion

AAAI 2026technical

Autoformalization aims to translate natural-language mathematical statements into a formal language. While LLMs have accelerated progress in this area, existing methods still suffer from low accuracy. We identify two key abilities for effective autoformalization: comprehensive mastery of formal-lang

Cited by 0SourcePDFScholar
2025

InverseCoder: Self-improving Instruction-Tuned Code LLMs with Inverse-Instruct

AAAI 2025technical

Recent advancements in open-source code large language models (LLMs) have been driven by fine-tuning on the data generated from powerful closed-source LLMs, which are expensive to obtain. This paper explores whether it is possible to use a fine-tuned open-source model to generate additional data to…

2025

QiMeng-CodeV-R1: Reasoning-Enhanced Verilog Generation

NeurIPS 2025poster

Large language models (LLMs) trained via reinforcement learning with verifiable reward (RLVR) have achieved breakthroughs on tasks with explicit, automatable verification, such as software programming and mathematical problems. Extending RLVR to electronic design automation (EDA), especially automat…

Cited by 0SourceScholar
2024

Automated CPU Design by Learning from Input-Output Examples

IJCAI 2024poster

Designing a central processing unit (CPU) requires intensive manual work of talented experts to implement the circuit logic from design specifications. Although considerable progress has been made in electronic design automation (EDA) to relieve human efforts, all existing EDA tools require hand-cra…

Cited by 0SourcePDFScholar
2024

Emergent Communication for Numerical Concepts Generalization

AAAI 2024technical

Research on emergent communication has recently gained significant traction as a promising avenue for the linguistic community to unravel human language's origins and explore artificial intelligence's generalization capabilities. Current research has predominantly concentrated on recognizing qualita…

Cited by 0SourcePDFScholar
2024

Ex3: Automatic Novel Writing by Extracting, Excelsior and Expanding

ACL 2024long

Generating long-term texts such as novels using artificial intelligence has always been a challenge. A common approach is to use large language models (LLMs) to construct a hierarchical framework that first plans and then writes. Despite the fact that the generated novels reach a sufficient length,…

2023

Contrastive Modules with Temporal Attention for Multi-Task Reinforcement Learning

NeurIPS 2023poster

In the field of multi-task reinforcement learning, the modular principle, which involves specializing functionalities into different modules and combining them appropriately, has been widely adopted as a promising approach to prevent the negative transfer problem that performance degradation due to…

2023

Efficient Symbolic Policy Learning with Differentiable Symbolic Expression

NeurIPS 2023poster

Deep reinforcement learning (DRL) has led to a wide range of advances in sequential decision-making tasks. However, the complexity of neural network policies makes it difficult to understand and deploy with limited computational resources. Currently, employing compact symbolic expressions as symboli…

2023

Emergent Communication for Rules Reasoning

NeurIPS 2023poster

Research on emergent communication between deep-learning-based agents has received extensive attention due to its inspiration for linguistics and artificial intelligence. However, previous attempts have hovered around emerging communication under perception-oriented environmental settings, that…

Cited by 0SourcePDFScholar
2023

Non-autoregressive Machine Translation with Probabilistic Context-free Grammar

NeurIPS 2023poster

Non-autoregressive Transformer(NAT) significantly accelerates the inference of neural machine translation. However, conventional NAT models suffer from limited expression power and performance degradation compared to autoregressive (AT) models due to the assumption of conditional independence among…

2023

Online Prototype Alignment for Few-shot Policy Transfer

ICML 2023poster

Domain adaptation in RL mainly deals with the changes of observation when transferring the policy to a new environment. Many traditional approaches of domain adaptation in RL manage to learn a mapping function between the source and target domain in explicit or implicit ways. However, they typically…

2022

Causality-driven Hierarchical Structure Discovery for Reinforcement Learning

NeurIPS 2022accept

Hierarchical reinforcement learning (HRL) has been proven to be effective for tasks with sparse rewards, for it can improve the agent's exploration efficiency by discovering high-quality hierarchical structures (e.g., subgoals or options). However, automatically discovering high-quality hierarchical…

Cited by 23SourcePDFScholar
2021

Distilling Object Detectors with Feature Richness

NeurIPS 2021poster

In recent years, large-scale deep models have achieved great success, but the huge computational complexity and massive storage requirements make it a great challenge to deploy them in resource-limited devices. As a model compression and acceleration method, knowledge distillation effectively improv…

2021

Domain-Specific Suppression for Adaptive Object Detection

CVPR 2021poster

Domain adaptation methods face performance degradation in object detection, as the complexity of tasks require more about the transferability of the model. We propose a new perspective on how CNN models gain the transferability, viewing the weights of a model as a series of motion patterns. The dire…

Cited by 103PDFScholar
2021

Hindsight Value Function for Variance Reduction in Stochastic Dynamic Environment

IJCAI 2021poster

Policy gradient methods are appealing in deep reinforcement learning but suffer from high variance of gradient estimate. To reduce the variance, the state value function is applied commonly. However, the effect of the state value function becomes limited in stochastic dynamic environments, where the…

Cited by 9SourcePDFScholar
2017

Task-Driven Dynamic Fusion: Reducing Ambiguity in Video Description

CVPR 2017poster

Integrating complementary features from multiple channels is expected to solve the description ambiguity problem in video captioning, whereas inappropriate fusion strategies often harm rather than help the performance. Existing static fusion methods in video captioning such as concatenation and summ…

Cited by 84PDFScholar