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Meng Luo

7 accepted papers

2026

Self-Improving Sparse Retrieval Through Heuristic Representation Refinement and Representation-Focused Learning

AAAI 2026technical

Learnable sparse retrieval (LSR) models encode texts into high-dimensional sparse representations, supporting token-level expansion beyond the original text and addressing the vocabulary mismatch problem in traditional bag-of-words retrieval. However, in the absence of representation-level supervisi

Cited by 0SourcePDFScholar
2026

Unveiling the Cognitive Compass: Theory-of-Mind–Guided Multimodal Emotion Reasoning

ICLR 2026poster

Despite rapid progress in multimodal large language models (MLLMs), their capability for deep emotional understanding remains limited. We argue that genuine affective intelligence requires explicit modeling of Theory of Mind (ToM), the cognitive substrate from which emotions arise. To this end, we i…

Cited by 0SourceScholar
2025

$\mathcal{V}ista\mathcal{DPO}$: Video Hierarchical Spatial-Temporal Direct Preference Optimization for Large Video Models

ICML 2025poster

Large Video Models (LVMs) built upon Large Language Models (LLMs) have shown promise in video understanding but often suffer from misalignment with human intuition and video hallucination issues. To address these challenges, we introduce **VistaDPO**, a novel framework for Video Hierarchical Spatia…

Cited by 0SourcePDFScholar
2025

Aristotle: Mastering Logical Reasoning with A Logic-Complete Decompose-Search-Resolve Framework

ACL 2025long

In the context of large language models (LLMs), current advanced reasoning methods have made impressive strides in various reasoning tasks. However, when it comes to logical reasoning tasks, significant challenges remain in both efficacy and efficiency. This is rooted in the fact that these systems…

2025

EffiCoder: Enhancing Code Generation in Large Language Models through Efficiency-Aware Fine-tuning

ICML 2025poster

As large language models (LLMs) play an increasingly important role in code generation, enhancing both correctness and efficiency has become crucial. Current methods primarily focus on correctness, often overlooking efficiency. To address this gap, we introduce SWIFTCODE to improve both aspects by f…

Cited by 0SourcePDFScholar
2025

On Path to Multimodal Generalist: General-Level and General-Bench

ICML 2025oral

The Multimodal Large Language Model (MLLM) is currently experiencing rapid growth, driven by the advanced capabilities of language-based LLMs. Unlike their specialist predecessors, existing MLLMs are evolving towards a Multimodal Generalist paradigm. Initially limited to understanding multiple mod…

Cited by 0SourcePDFScholar
2025

PAD: Personalized Alignment of LLMs at Decoding-time

ICLR 2025poster

Aligning with personalized preferences, which vary significantly across cultural, educational, and political differences, poses a significant challenge due to the computational costs and data demands of traditional alignment methods. In response, this paper presents Personalized Alignment at Decodin…

Cited by 10SourcePDFScholar