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Rui Meng

26 accepted papers

2026

Benchmarking LLMs for Political Science: A United Nations Perspective

AAAI 2026technical

Large Language Models (LLMs) have achieved significant advances in natural language processing, yet their potential for high-stake political decision-making remains largely unexplored. This paper addresses the gap by focusing on the application of LLMs to the United Nations (UN) decision-making proc

Cited by 0SourcePDFScholar
2026

Beyond Global Similarity: Multi-Conditional Retrieval for Fine-Grained Cross-Modal Understanding

CVPR 2026

Recent advances in multimodal large language models (MLLMs) have substantially expanded the capabilities of multimodal retrieval, enabling systems to align and retrieve information across visual and textual modalities. Yet, existing benchmarks largely focus on coarse-grained or single-condition alig

Cited by 0SourcecodeScholar
2026

MARS: Modular Agent with Reflective Search for Automated AI Research

ICML 2026poster

Automating AI research differs from general software engineering due to computationally expensive evaluation (e.g., model training) and opaque performance attribution. Current LLM-based agents struggle here, often generating monolithic scripts that ignore execution costs and causal factors. We intro…

Cited by 0SourceScholar
2026

PaperBanana: Automating Academic Illustration for AI Scientists

ICML 2026spotlight

Despite rapid advances in autonomous AI scientists powered by language models, generating publication-ready illustrations remains a labor-intensive bottleneck in the research workflow. To lift this burden, we introduce PaperBanana, an agentic framework for automated generation of publication-ready a…

Cited by 0SourceScholar
2026

SMPRO: Self-Supervised Visual Preference Alignment via Differentiable Multi-Preference Multi-Group Ranking

AAAI 2026technical

Direct Preference Optimization (DPO) has emerged as a simple and effective approach for aligning models with human preferences. However, existing DPO-based methods suffer from 3 key drawbacks: they rely on only a single positive-negative preference pair per question, restricting the diversity and ri

Cited by 0SourcePDFScholar
2026

TUMIX: Multi-Agent Test-Time Scaling with Tool-Use Mixture

ICLR 2026poster

While integrating tools like Code Interpreter and Search has significantly enhanced Large Language Model (LLM) reasoning in models like ChatGPT Agent and Gemini-Pro, practical guidance on optimal tool use is lacking. The core challenge is effectively combining textual reasoning, coding, and search f…

Cited by 0SourceScholar
2026

The Overthinking Predicament: When Reasoning Hurts Ranking

ICLR 2026poster

Document reranking is a key component in information retrieval (IR), aimed at refining initial retrieval results to improve ranking quality for downstream tasks. Recent studies—motivated by large reasoning models (LRMs)—have begun incorporating explicit chain-of-thought (CoT) reasoning into LLM-base…

Cited by 0SourceScholar
2026

Tools are under-documented: Simple Document Expansion Boosts Tool Retrieval

ICLR 2026poster

Large Language Models (LLMs) have recently demonstrated strong capabilities in tool use, yet progress in tool retrieval remains hindered by incomplete and heterogeneous tool documentation. To address this challenge, we introduce Tool-DE, a new benchmark and framework that systematically enriches to…

Cited by 0SourcecodeScholar
2025

Beyond Content Relevance: Evaluating Instruction Following in Retrieval Models

ICLR 2025poster

Instruction-following capabilities in large language models (LLMs) have progressed significantly, enabling more complex user interactions through detailed prompts. However, retrieval systems have not matched these advances, most of them still relies on traditional lexical and semantic matching techn…

2025

Breaking the Batch Barrier (B3) of Contrastive Learning via Smart Batch Mining

NeurIPS 2025spotlight

Contrastive learning (CL) is a prevalent technique for training embedding models, which pulls semantically similar examples (positives) closer in the representation space while pushing dissimilar ones (negatives) further apart. A key source of negatives are "in-batch" examples, i.e., positives from…

Cited by 0SourcecodeScholar
2025

Learning from Committee: Reasoning Distillation from a Mixture of Teachers with Peer-Review

ACL 2025finding

While reasoning capabilities typically emerge in large language models (LLMs) with tens of billions of parameters, recent research focuses on improving smaller open-source models through knowledge distillation (KD) from commercial LLMs. However, many of these studies rely solely on responses from a…

2025

Multi-Modal Multi-Task Unified Embedding Model (M3T-UEM): A Task-Adaptive Representation Learning Framework

ICCV 2025poster

We present Multi-Modal Multi-Task Unified Embedding Model (M3T-UEM), a framework that advances vision-language matching and retrieval by leveraging a large language model (LLM) backbone. While concurrent LLM-based approaches like VLM2VEC, MM-Embed, NV-Embed, and MM-GEM have demonstrated impressive c…

2025

VLM2Vec: Training Vision-Language Models for Massive Multimodal Embedding Tasks

ICLR 2025poster

Embedding models play a crucial role in a variety of downstream tasks, including semantic similarity, information retrieval, and clustering. While there has been a surge of interest in developing universal text embedding models that generalize across tasks (e.g., MTEB), progress in learning universa…

Cited by 18SourcePDFScholar
2024

Decoupled Marked Temporal Point Process using Neural Ordinary Differential Equations

ICLR 2024poster

A Marked Temporal Point Process (MTPP) is a stochastic process whose realization is a set of event-time data. MTPP is often used to understand complex dynamics of asynchronous temporal events such as money transaction, social media, healthcare, etc. Recent studies have utilized deep neural networks…

Cited by 8SourcePDFScholar
2024

LayoutDETR: Detection Transformer Is a Good Multimodal Layout Designer

ECCV 2024poster

"Graphic layout designs play an essential role in visual communication. Yet handcrafting layout designs is skill-demanding, time-consuming, and non-scalable to batch production. Generative models emerge to make design automation scalable but it remains non-trivial to produce designs that comply with…

2024

Traffic Light or Light Traffic? Investigating Phrasal Semantics in Large Language Models

EMNLP 2024finding

Phrases are fundamental linguistic units through which humans convey semantics. This study critically examines the capacity of API-based large language models (LLMs) to comprehend phrase semantics, utilizing three human-annotated datasets. We assess the performance of LLMs in executing phrase semant…

2024

Unlocking Anticipatory Text Generation: A Constrained Approach for Large Language Models Decoding

EMNLP 2024main

Large Language Models (LLMs) have demonstrated a powerful ability for text generation. However, achieving optimal results with a given prompt or instruction can be challenging, especially for billion-sized models. Additionally, undesired behaviors such as toxicity or hallucinations can manifest. Whi…

2023

General-to-Specific Transfer Labeling for Domain Adaptable Keyphrase Generation

ACL 2023findings

Training keyphrase generation (KPG) models require a large amount of annotated data, which can be prohibitively expensive and often limited to specific domains. In this study, we first demonstrate that large distribution shifts among different domains severely hinder the transferability of KPG model…

2023

HPE: Answering Complex Questions over Text by Hybrid Question Parsing and Execution

EMNLP 2023long findings

The dominant paradigm of textual question answering systems is based on end-to-end neural networks, which excels at answering natural language questions but falls short on complex ones. This stands in contrast to the broad adaptation of semantic parsing approaches over structured data sources (e.g.,…

Cited by 0SourceScholar
2022

Interpretable Research Replication Prediction via Variational Contextual Consistency Sentence Masking

ACL 2022findings

Research Replication Prediction (RRP) is the task of predicting whether a published research result can be replicated or not. Building an interpretable neural text classifier for RRP promotes the understanding of why a research paper is predicted as replicable or non-replicable and therefore makes i…

Cited by 3SourcePDFScholar
2022

Retrieval-Augmented Multilingual Keyphrase Generation with Retriever-Generator Iterative Training

NAACL 2022findings

Keyphrase generation is the task of automatically predicting keyphrases given a piece of long text. Despite its recent flourishing, keyphrase generation on non-English languages haven’t been vastly investigated. In this paper, we call attention to a new setting named multilingual keyphrase generatio…

2022

Uni-Parser: Unified Semantic Parser for Question Answering on Knowledge Base and Database

EMNLP 2022main

Parsing natural language questions into executable logical forms is a useful and interpretable way to perform question answering on structured data such as knowledge bases (KB) or databases (DB). However, existing approaches on semantic parsing cannot adapt to both modalities, as they suffer from th…

2021

An Empirical Study on Neural Keyphrase Generation

NAACL 2021long

Recent years have seen a flourishing of neural keyphrase generation (KPG) works, including the release of several large-scale datasets and a host of new models to tackle them. Model performance on KPG tasks has increased significantly with evolving deep learning research. However, there lacks a comp…

2021

Bringing Structure into Summaries: a Faceted Summarization Dataset for Long Scientific Documents

ACL 2021short

Faceted summarization provides briefings of a document from different perspectives. Readers can quickly comprehend the main points of a long document with the help of a structured outline. However, little research has been conducted on this subject, partially due to the lack of large-scale faceted s…

2021

Spatiotemporal Attention for Multivariate Time Series Prediction and Interpretation

ICASSP 2021accepted

Multivariate time series modeling and prediction problems are abundant in many machine learning application domains. Accurate interpretation of the prediction outcomes from the model can significantly benefit the domain experts. In addition to isolating the important time-steps, spatial interpretati…

Cited by 0SourceScholar