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Ning Wu

7 accepted papers

2026

AgentPO: Enhancing Multi-Agent Collaboration via Reinforcement Learning

ICLR 2026poster

Multi-Agent Systems (MAS) offer a powerful paradigm for solving complex problems through distributed reasoning and collaboration. However, their effectiveness is often hindered by the challenge of optimizing interactions among agents. To address this, we introduce AgentPO, a novel framework that dir…

Cited by 0SourceScholar
2025

Selected Languages are All You Need for Cross-lingual Truthfulness Transfer

COLING 2025main

Truthfulness stands out as an essential challenge for Large Language Models (LLMs). Although many works have developed various ways for truthfulness enhancement, they seldom focus on truthfulness in multilingual scenarios. Meanwhile, contemporary multilingual aligning technologies struggle to balanc…

2024

Breaking Language Barriers in Multilingual Mathematical Reasoning: Insights and Observations

EMNLP 2024finding

Existing research predominantly focuses on developing powerful large language models (LLMs) for mathematical reasoning within monolingual languages, with few explorations in preserving efficacy in a multilingual context. To bridge this gap, this paper pioneers exploring and training powerful Multili…

2024

ControlMath: Controllable Data Generation Promotes Math Generalist Models

EMNLP 2024main

Utilizing large language models (LLMs) for data augmentation has yielded encouraging results in mathematical reasoning. However, these approaches face constraints in problem diversity, potentially restricting them to in-domain/distribution data generation. To this end, we propose **ControlMath**, an…

2022

Empowering Dual-Encoder with Query Generator for Cross-Lingual Dense Retrieval

EMNLP 2022main

In monolingual dense retrieval, lots of works focus on how to distill knowledge from cross-encoder re-ranker to dual-encoder retriever and these methods achieve better performance due to the effectiveness of cross-encoder re-ranker. However, we find that the performance of the cross-encoder re-ranke…

Cited by 8SourcePDFScholar
2022

Lexicon-Enhanced Self-Supervised Training for Multilingual Dense Retrieval

EMNLP 2022finding

Recent multilingual pre-trained models have shown better performance in various multilingual tasks. However, these models perform poorly on multilingual retrieval tasks due to lacking multilingual training data. In this paper, we propose to mine and generate self-supervised training data based on a…

2022

Unsupervised Context Aware Sentence Representation Pretraining for Multi-lingual Dense Retrieval

IJCAI 2022poster

Recent research demonstrates the effectiveness of using pretrained language models (PLM) to improve dense retrieval and multilingual dense retrieval. In this work, we present a simple but effective monolingual pretraining task called contrastive context prediction (CCP) to learn sentence representat…