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Tao Ji

25 accepted papers

2026

Group Verification-based Policy Optimization for Interactive Coding Agents

ICLR 2026poster

Recent advancements in reinforcement learning from verifiable rewards (RLVR), particularly through Group Relative Policy Optimization (GRPO), have significantly improved the capabilities of large language models (LLMs) for interactive coding agents. However, these methods overlook process-verifiable…

Cited by 0SourceScholar
2026

MHA2MLA-VLM: Enabling DeepSeek’s Economical Multi-Head Latent Attention Across Vision-Language Models

AAAI 2026technical

As vision-language models (VLMs) tackle increasingly complex and multimodal tasks, the rapid growth of Key-Value (KV) cache imposes significant memory and computational bottlenecks during inference. While Multi-Head Latent Attention (MLA) offers an effective means to compress the KV cache and accele

Cited by 0SourcePDFScholar
2026

MathCritique: Enhancing LLM Reasoning via Critique Models with Test-Time and Training-Time Supervision

IJCAI 2026

Training critique models to provide useful feedback for actor models is an effective approach in scalable oversight, especially for complex tasks like math reasoning. However, current research lacks suitable datasets for effectively training critique models and integrating them in a principled way a

Cited by 0Scholar
2026

PDFBench: A Benchmark for De Novo Protein Design from Function

ICML 2026poster

Function-guided protein design is a crucial task with significant applications in drug discovery and enzyme engineering. However, the field lacks a unified and comprehensive evaluation framework. Current models are assessed using inconsistent and limited subsets of metrics, which prevents fair compa…

Cited by 0SourceScholar
2026

What Makes a Good Speech Tokenizer for LLM-Centric Speech Generation? A Systematic Study

AAAI 2026technical

Speech-language models (SLMs) offer a promising path toward unifying speech and text understanding and generation. However, challenges remain in achieving effective cross-modal alignment and high-quality speech generation. In this work, we systematically investigate the role of speech tokenizer desi

Cited by 0SourcePDFScholar
2026

Why Reinforcement Fine-Tuning Enables MLLMs Preserve Prior Knowledge Better: A Data Perspective

ICLR 2026poster

Post-training algorithms such as Supervised Fine-Tuning (SFT) and Reinforcement Fine-Tuning (RFT) are widely used to adapt multimodal large language models to downstream tasks. While effective at task adaptation, their impact on prior knowledge remains unclear. In this paper, we introduce jigsaw puz…

Cited by 0SourceScholar
2025

BMMR: A Large-Scale Bilingual Multimodal Multi-Discipline Reasoning Dataset

NeurIPS 2025poster

In this paper, we introduce BMMR, a large-scale bilingual, multimodal, multi-disciplinary reasoning dataset for the community to develop and evaluate large multimodal models (LMMs). BMMR comprises 100k university-level questions drawn from 300 UNESCO-defined subjects, spanning diverse formats—multip…

Cited by 0SourceScholar
2025

Have the VLMs Lost Confidence? A Study of Sycophancy in VLMs

ICLR 2025poster

In the study of LLMs, sycophancy represents a prevalent hallucination that poses significant challenges to these models. Specifically, LLMs often fail to adhere to original correct responses, instead blindly agreeing with users' opinions, even when those opinions are incorrect or malicious. However,…

Cited by 0SourcePDFScholar
2025

Mitigating Object Hallucinations in MLLMs via Multi-Frequency Perturbations

EMNLP 2025

Recently, multimodal large language models (MLLMs) have demonstrated remarkable performance in visual-language tasks. However, the authenticity of the responses generated by MLLMs is often compromised by object hallucinations. We identify that a key cause of these hallucinations is the model’s over-

Cited by 0SourcePDFScholar
2025

Protein Design with Dynamic Protein Vocabulary

NeurIPS 2025spotlight

Protein design is a fundamental challenge in biotechnology, aiming to design novel sequences with specific functions within the vast space of possible proteins. Recent advances in deep generative models have enabled function-based protein design from textual descriptions, yet struggle with structura…

Cited by 0SourceScholar
2025

The Role of Visual Modality in Multimodal Mathematical Reasoning: Challenges and Insights

ACL 2025long

Recent research has increasingly focused on multimodal mathematical reasoning, particularly emphasizing the creation of relevant datasets and benchmarks. Despite this, the role of visual information in reasoning has been underexplored. Our findings show that existing multimodal mathematical models m…

Cited by 0SourcePDFScholar
2025

ToolEyes: Fine-Grained Evaluation for Tool Learning Capabilities of Large Language Models in Real-world Scenarios

COLING 2025main

Existing evaluations of tool learning primarily focus on validating the alignment of selected tools for large language models (LLMs) with expected outcomes. However, these approaches rely on a limited set of scenarios where answers can be pre-determined. Furthermore, a sole emphasis on outcomes disr…

2025

Towards Economical Inference: Enabling DeepSeek’s Multi-Head Latent Attention in Any Transformer-based LLMs

ACL 2025long

Multi-head Latent Attention (MLA) is an innovative architecture proposed by DeepSeek, designed to ensure efficient and economical inference by significantly compressing the Key-Value (KV) cache into a latent vector. Compared to MLA, standard LLMs employing Multi-Head Attention (MHA) and its variants…

2024

Investigating and Mitigating Object Hallucinations in Pretrained Vision-Language (CLIP) Models

EMNLP 2024main

Large Vision-Language Models (LVLMs) have achieved impressive performance, yet research has pointed out a serious issue with object hallucinations within these models. However, there is no clear conclusion as to which part of the model these hallucinations originate from. In this paper, we present a…

2024

Length Generalization of Causal Transformers without Position Encoding

ACL 2024findings

Generalizing to longer sentences is important for recent Transformer-based language models. Besides algorithms manipulating explicit position features, the success of Transformers without position encodings (NoPE) provides a new way to overcome the challenge. In this paper, we study the length gener…

2024

LongHeads: Multi-Head Attention is Secretly a Long Context Processor

EMNLP 2024finding

Large language models (LLMs) have achieved impressive performance in numerous domains but often struggle to process lengthy inputs effectively and efficiently due to limited length generalization and attention’s quadratic computational demands. Many sought to mitigate this by restricting the attenti…

2024

StepCoder: Improving Code Generation with Reinforcement Learning from Compiler Feedback

ACL 2024long

The advancement of large language models (LLMs) has significantly propelled the field of code generation. Previous work integrated reinforcement learning (RL) with compiler feedback for exploring the output space of LLMs to enhance code generation quality. However, the lengthy code generated by LLMs…

2023

Rehearsal-free Continual Language Learning via Efficient Parameter Isolation

ACL 2023long

We study the problem of defying catastrophic forgetting when learning a series of language processing tasks. Compared with previous methods, we emphasize the importance of not caching history tasks’ data, which makes the problem more challenging. Our proposed method applies the parameter isolation s…

Cited by 38SourcePDFScholar
2023

Typology Guided Multilingual Position Representations: Case on Dependency Parsing

ACL 2023findings

Recent multilingual models benefit from strong unified semantic representation models. However, due to conflict linguistic regularities, ignoring language-specific features during multilingual learning may suffer from negative transfer. In this work, we analyze the relationbetween a language’s posit…

Cited by 1SourcePDFScholar
2022

Explore Unsupervised Structures in Pretrained Models for Relation Extraction

EMNLP 2022finding

Syntactic trees have been widely applied in relation extraction (RE). However, since parsing qualities are not stable on different text domains and a pre-defined grammar may not well fit the target relation schema, the introduction of syntactic structures sometimes fails to improve RE performances c…

2022

Zero-Shot Event Detection Based on Ordered Contrastive Learning and Prompt-Based Prediction

NAACL 2022findings

Event detection is a classic natural language processing task. However, the constantly emerging new events make supervised methods not applicable to unseen types. Previous zero-shot event detection methods either require predefined event types as heuristic rules or resort to external semantic analyz…

2021

A Unified Encoding of Structures in Transition Systems

EMNLP 2021main

Transition systems usually contain various dynamic structures (e.g., stacks, buffers). An ideal transition-based model should encode these structures completely and efficiently. Previous works relying on templates or neural network structures either only encode partial structure information or suffe…

2021

Word Reordering for Zero-shot Cross-lingual Structured Prediction

EMNLP 2021main

Adapting word order from one language to another is a key problem in cross-lingual structured prediction. Current sentence encoders (e.g., RNN, Transformer with position embeddings) are usually word order sensitive. Even with uniform word form representations (MUSE, mBERT), word order discrepancies…