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Liangyou Li

25 accepted papers

2026

From Verifiable Dot to Reward Chain: Harnessing Verifiable Reference-based Rewards for Reinforcement Learning of Open-ended Generation

ICLR 2026poster

Reinforcement learning with verifiable rewards (RLVR) succeeds in reasoning tasks (e.g., math and code) by checking the final verifiable answer (i.e., a verifiable dot signal). However, extending this paradigm to open-ended generation is challenging because there is no unambiguous ground truth. Rely…

Cited by 0SourcecodeScholar
2026

ToolACE-MT: Non-Autoregressive Generation for Agentic Multi-Turn Interaction

ICLR 2026poster

Agentic task-solving with Large Language Models (LLMs) requires multi-turn, multi-step interactions, often involving complex function calls and dynamic user-agent exchanges. Existing simulation-based data generation methods for such scenarios rely heavily on costly autoregressive interactions betwee…

Cited by 0SourcecodeScholar
2026

ToolACE-R: Model-aware Iterative Training and Adaptive Refinement for Tool learning

AAAI 2026technical

Tool learning, which allows Large Language Models (LLMs) to leverage external tools for solving complex user tasks, has emerged as a promising avenue for extending model capabilities. However, existing approaches primarily focus on data synthesis for fine-tuning LLMs to invoke tools effectively, lar

Cited by 0SourcePDFScholar
2025

Bridging and Modeling Correlations in Pairwise Data for Direct Preference Optimization

ICLR 2025poster

Direct preference optimization (DPO), a widely adopted offline preference optimization algorithm, aims to align large language models (LLMs) with human-desired behaviors using pairwise preference data. However, the generation of the winning response and the losing response within pairwise data are t…

2025

Chain-of-Probe: Examining the Necessity and Accuracy of CoT Step-by-Step

NAACL 2025findings

Current research found the issue of Early Answering in large language models (LLMs), where the models already have an answer before generating the Chain-of-Thought (CoT). This phenomenon suggests a potential lack of necessary dependency between the predicted answer and the reasoning process. Consequ…

Cited by 3SourcePDFScholar
2025

Crowd Comparative Reasoning: Unlocking Comprehensive Evaluations for LLM-as-a-Judge

ACL 2025long

LLM-as-a-Judge, which generates chain-of-thought (CoT) judgments, has become a widely adopted auto-evaluation method. However, its reliability is compromised by the CoT reasoning’s inability to capture comprehensive and deeper details, often leading to incomplete outcomes. Existing methods mainly re…

2025

Learning to Align Multi-Faceted Evaluation: A Unified and Robust Framework

ACL 2025finding

Large Language Models (LLMs) are being used more and more extensively for automated evaluation in various scenarios. Previous studies have attempted to fine-tune open-source LLMs to replicate the evaluation explanations and judgments of powerful proprietary models, such as GPT-4. However, these meth…

2025

NILE: Internal Consistency Alignment in Large Language Models

EMNLP 2025

Recent advances show that the world knowledge in the Instruction Fine-Tuning (IFT) dataset, which is incompatible with LLMs’ internal knowledge, can greatly hurt the IFT performance. However, the effective integration and balancing of the internal knowledge of LLMs, acquired during pre-training, wit

2025

RevisEval: Improving LLM-as-a-Judge via Response-Adapted References

ICLR 2025poster

With significant efforts in recent studies, LLM-as-a-Judge has become a cost-effective alternative to human evaluation for assessing text generation quality in a wide range of tasks. However, there still remains a reliability gap between LLM-as-a-Judge and human evaluation. One important reason is t…

Cited by 8SourcePDFScholar
2025

Stepwise Reasoning Checkpoint Analysis: A Test Time Scaling Method to Enhance LLMs’ Reasoning

EMNLP 2025

Mathematical reasoning through Chain-of-Thought (CoT) has emerged as a powerful capability of Large Language Models (LLMs), which can be further enhanced through Test-Time Scaling (TTS) methods like Beam Search and DVTS. However, these methods, despite improving accuracy by allocating more computati

2025

Subtle Errors in Reasoning: Preference Learning via Error-injected Self-editing

ACL 2025long

Large Language Models (LLMs) have exhibited strong mathematical reasoning prowess, tackling tasks ranging from basic arithmetic to advanced competition-level problems. However, frequently occurring subtle yet critical errors, such as miscalculations or incorrect substitutions, limit the LLMs’ full p…

2025

ToolFlow: Boosting LLM Tool-Calling Through Natural and Coherent Dialogue Synthesis

NAACL 2025long

Supervised fine-tuning (SFT) is a common method to enhance the tool calling capabilities of Large Language Models (LLMs), with the training data often being synthesized. The current data synthesis process generally involves sampling a set of tools, formulating a requirement based on these tools, and…

Cited by 4SourcePDFScholar
2024

FollowBench: A Multi-level Fine-grained Constraints Following Benchmark for Large Language Models

ACL 2024long

The ability to follow instructions is crucial for Large Language Models (LLMs) to handle various real-world applications. Existing benchmarks primarily focus on evaluating pure response quality, rather than assessing whether the response follows constraints stated in the instruction. To fill this re…

2024

Learning to Edit: Aligning LLMs with Knowledge Editing

ACL 2024long

Knowledge editing techniques, aiming to efficiently modify a minor proportion of knowledge in large language models (LLMs) without negatively impacting performance across other inputs, have garnered widespread attention. However, existing methods predominantly rely on memorizing the updated knowledg…

2024

M4LE: A Multi-Ability Multi-Range Multi-Task Multi-Domain Long-Context Evaluation Benchmark for Large Language Models

ACL 2024long

Managing long sequences has become an important and necessary feature for large language models (LLMs). However, assessing their ability to handle long contexts remains a challenge. This paper introduces M4LE, a Multi-ability, Multi-range, Multi-task, Multi-domain benchmark for Long-context Evaluati…

2024

MT-Eval: A Multi-Turn Capabilities Evaluation Benchmark for Large Language Models

EMNLP 2024main

Large language models (LLMs) are increasingly used for complex multi-turn conversations across diverse real-world applications. However, existing benchmarks mainly focus on single-turn evaluations, overlooking the models’ capabilities in multi-turn interactions. To address this gap, we introduce , a…

2023

AdaTranS: Adapting with Boundary-based Shrinking for End-to-End Speech Translation

EMNLP 2023short findings

To alleviate the data scarcity problem in End-to-end speech translation (ST), pre-training on data for speech recognition and machine translation is considered as an important technique. However, the modality gap between speech and text prevents the ST model from efficiently inheriting knowledge fro…

Cited by 0SourceScholar
2023

SongRewriter: A Chinese Song Rewriting System with Controllable Content and Rhyme Scheme

ACL 2023findings

Although lyrics generation has achieved significant progress in recent years, it has limited practical applications because the generated lyrics cannot be performed without composing compatible melodies. In this work, we bridge this practical gap by proposing a song rewriting system which rewrites t…

2022

FreeTransfer-X: Safe and Label-Free Cross-Lingual Transfer from Off-the-Shelf Models

NAACL 2022findings

Cross-lingual transfer (CLT) is of various applications. However, labeled cross-lingual corpus is expensive or even inaccessible, especially in the fields where labels are private, such as diagnostic results of symptoms in medicine and user profiles in business. Nevertheless, there are off-the-shelf…

2022

Triangular Transfer: Freezing the Pivot for Triangular Machine Translation

ACL 2022short

Triangular machine translation is a special case of low-resource machine translation where the language pair of interest has limited parallel data, but both languages have abundant parallel data with a pivot language. Naturally, the key to triangular machine translation is the successful exploitatio…

2022

Universal Conditional Masked Language Pre-training for Neural Machine Translation

ACL 2022long

Pre-trained sequence-to-sequence models have significantly improved Neural Machine Translation (NMT). Different from prior works where pre-trained models usually adopt an unidirectional decoder, this paper demonstrates that pre-training a sequence-to-sequence model but with a bidirectional decoder c…

2021

Exploring the Vulnerability of Deep Neural Networks: A Study of Parameter Corruption

AAAI 2021technical

We argue that the vulnerability of model parameters is of crucial value to the study of model robustness and generalization but little research has been devoted to understanding this matter. In this work, we propose an indicator to measure the robustness of neural network parameters by exploiting th…

Cited by 41SourcePDFScholar
2021

Future-Guided Incremental Transformer for Simultaneous Translation

AAAI 2021technical

Simultaneous translation (ST) starts translations synchronously while reading source sentences, and is used in many online scenarios. The previous wait-k policy is concise and achieved good results in ST. However, wait-k policy faces two weaknesses: low training speed caused by the recalculation of…

2021

Uncertainty-Aware Balancing for Multilingual and Multi-Domain Neural Machine Translation Training

EMNLP 2021main

Learning multilingual and multi-domain translation model is challenging as the heterogeneous and imbalanced data make the model converge inconsistently over different corpora in real world. One common practice is to adjust the share of each corpus in the training, so that the learning process is bal…

Cited by 16SourcePDFScholar