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Ruiming Tang

39 accepted papers

2026

ATGen: Adversarial Reinforcement Learning for Test Case Generation

ICLR 2026poster

Large Language Models (LLMs) show remarkable code generation capabilities but often produce imperfect code with subtle bugs. A critical bottleneck for improving code quality is the scarcity of high-quality test cases. Existing approaches, primarily based on Supervised Fine-Tuning (SFT) over static d…

Cited by 0SourceScholar
2026

From Single to Multi-Granularity: Toward Long-Term Memory Association and Selection of Conversational Agents

ICLR 2026poster

Large Language Models (LLMs) have recently been widely adopted in conversational agents. However, the increasingly long interactions between users and agents accumulate extensive dialogue records, making it difficult for LLMs with limited context windows to maintain a coherent long-term dialogue mem…

Cited by 0SourcecodeScholar
2026

RecCocktail: A Generalizable and Efficient Framework for LLM-Based Recommendation

AAAI 2026technical

Large Language Models (LLMs) have achieved remarkable success in recent years, owing to their impressive generalization capabilities and rich world knowledge. To capitalize on the potential of using LLMs as recommender systems, mainstream approaches typically focus on two paradigms. The first paradi

Cited by 0SourcePDFScholar
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

Adaptive Tool Use in Large Language Models with Meta-Cognition Trigger

ACL 2025long

Large language models (LLMs) have shown remarkable emergent capabilities, transforming the execution of functional tasks by leveraging external tools for complex problems that require specialized processing or up-to-date data. While existing research expands LLMs access to diverse tools (e.g., progr…

Cited by 0SourcePDFScholar
2025

Benchmarking Retrieval-Augmented Multimomal Generation for Document Question Answering

NeurIPS 2025poster

Document Visual Question Answering (DocVQA) faces dual challenges in processing lengthy multimodal documents (text, images, tables) and performing cross-modal reasoning. Current document retrieval-augmented generation (DocRAG) methods remain limited by their text-centric approaches, frequently missi…

Cited by 0SourcecodeScholar
2025

Boost, Disentangle, and Customize: A Robust System2-to-System1 Pipeline for Code Generation

ACL 2025finding

To address these limitations, we propose BDC, a novel framework that Boosts reasoning exploration via multi-agent collaboration, Disentangles heterogeneous data into specialized experts, and Customizes solutions through dynamic model composition. BDC integrates a Monte Carlo Tree-of-Agents algorithm…

Cited by 0SourcePDFScholar
2025

Bridging Relevance and Reasoning: Rationale Distillation in Retrieval-Augmented Generation

ACL 2025finding

The reranker and generator are two critical components in the Retrieval-Augmented Generation (i.e., RAG) pipeline, responsible for ranking relevant documents and generating responses. However, due to differences in pre-training data and objectives, there is an inevitable gap between the documents ra…

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

CAM: A Constructivist View of Agentic Memory for LLM-Based Reading Comprehension

NeurIPS 2025poster

Current Large Language Models (LLMs) are confronted with overwhelming information volume when comprehending long-form documents. This challenge raises the imperative of a cohesive memory module, which can elevate vanilla LLMs into autonomous reading agents. Despite the emergence of some heuristic ap…

Cited by 0SourceScholar
2025

CoIR: A Comprehensive Benchmark for Code Information Retrieval Models

ACL 2025long

Despite the substantial success of Information Retrieval (IR) in various NLP tasks, most IR systems predominantly handle queries and corpora in natural language, neglecting the domain of code retrieval. Code retrieval is critically important yet remains under-explored, with existing methods and benc…

2025

CodePRM: Execution Feedback-enhanced Process Reward Model for Code Generation

ACL 2025finding

Code generation is a critical reasoning task for large language models (LLMs). Recent advancements have focused on optimizing the thought process of code generation, achieving significant improvements. However, such thought process lacks effective process supervision, making it hard to optimize the…

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

DebateCoder: Towards Collective Intelligence of LLMs via Test Case Driven LLM Debate for Code Generation

ACL 2025long

With the impressive reasoning and text generation capabilities of large language models (LLMs), methods leveraging multiple LLMs to debate each other have garnered increasing attention. However, existing debate-based approaches remain limited in effectiveness in structured and detailed domains repre…

2025

Humanity’s Last Code Exam: Can Advanced LLMs Conquer Human’s Hardest Code Competition?

EMNLP 2025

Code generation is a core capability of large language models (LLMs), yet mainstream benchmarks (e.g., APPs and LiveCodeBench) contain questions with medium-level difficulty and pose no challenge to advanced LLMs. To better reflected the advanced reasoning and code generation ability, We introduce H

2025

Instruction-Tuning Data Synthesis from Scratch via Web Reconstruction

ACL 2025finding

The improvement of LLMs’ instruction-following capabilities depends critically on the availability of high-quality instruction-response pairs. While existing automatic data synthetic methods alleviate the burden of manual curation, they often rely heavily on either the quality of seed data or strong…

2025

LLMTreeRec: Unleashing the Power of Large Language Models for Cold-Start Recommendations

COLING 2025main

The lack of training data gives rise to the system cold-start problem in recommendation systems, making them struggle to provide effective recommendations. To address this problem, Large Language Models(LLMs) can model recommendation tasks as language analysis tasks and provide zero-shot results bas…

2025

MMDocIR: Benchmarking Multimodal Retrieval for Long Documents

EMNLP 2025

Multimodal document retrieval aims to identify and retrieve various forms of multimodal content, such as figures, tables, charts, and layout information from extensive documents. Despite its increasing popularity, there is a notable lack of a comprehensive and robust benchmark to effectively evaluat

Cited by 0SourcePDFScholar
2025

MTRec: Learning to Align with User Preferences via Mental Reward Models

NeurIPS 2025poster

Recommendation models are predominantly trained using implicit user feedback, since explicit feedback is often costly to obtain. However, implicit feedback, such as clicks, does not always reflect users' real preferences. For example, a user might click on a news article because of its attractive he…

Cited by 0SourceScholar
2025

NL-Debugging: Exploiting Natural Language as an Intermediate Representation for Code Debugging

EMNLP 2025

Debugging is a critical aspect of LLM’s coding ability. Early debugging efforts primarily focused on code-level analysis, which often falls short when addressing complex programming errors that require a deeper understanding of algorithmic logic. Recent advancements in large language models (LLMs) h

2025

P-Law: Predicting Quantitative Scaling Law with Entropy Guidance in Large Recommendation Models

NeurIPS 2025poster

With the growing size of data and models in Large Recommendation Models, the time required for debugging has become increasingly prohibitive, underscoring the urgent need for effective guidance in parameter configuration. The Scaling Law (SL) offers analogous guidance in the Sequential Language doma…

Cited by 0SourcecodeScholar
2025

Process vs. Outcome Reward: Which is Better for Agentic RAG Reinforcement Learning

NeurIPS 2025poster

Retrieval-augmented generation (RAG) enhances large language models (LLMs) by integrating external knowledge, yet traditional RAG systems struggle with static workflows and limited adaptability for complex, multistep reasoning tasks. Agentic RAG systems, such as DeepResearch, address these issues th…

Cited by 0SourcecodeScholar
2025

RecBase: Generative Foundation Model Pretraining for Zero-Shot Recommendation

EMNLP 2025

Recent advances in LLM-based recommendation have shown promise, yet their cross-domain generalization is hindered by a fundamental mismatch between language-centric pretraining and the recommendation task. Existing methods, relying on language-level knowledge, fail to capture dynamic, item-level use

2025

RethinkMCTS: Refining Erroneous Thoughts in Monte Carlo Tree Search for Code Generation

EMNLP 2025

Tree search methods have demonstrated impressive performance in code generation. Previous methods combine tree search with reflection that summarizes past mistakes to achieve iterative improvement. However, these methods face significant challenges. First, they search directly within the code langua

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

ToolACE: Winning the Points of LLM Function Calling

ICLR 2025poster

Function calling significantly extends the application boundary of large language models (LLMs), where high-quality and diverse training data is critical for unlocking this capability. However, collecting and annotating real function-calling data is challenging, while synthetic data from existing pi…

Cited by 23SourcePDFScholar
2024

Active Explainable Recommendation with Limited Labeling Budgets

ICASSP 2024accepted

Explainable recommendation has gained significant attention due to its potential to enhance user trust and system transparency. Previous studies primarily focus on refining model architectures to generate more informative explanations, assuming that the explanation data is sufficient and easy to acq…

Cited by 0SourceScholar
2024

D3: A Methodological Exploration of Domain Division, Modeling, and Balance in Multi-Domain Recommendations

AAAI 2024technical

To enhance the efficacy of multi-scenario services in industrial recommendation systems, the emergence of multi-domain recommendation has become prominent, which entails simultaneous modeling of all domains through a unified model, effectively capturing commonalities and differences among them. Howe…

Cited by 6SourcePDFScholar
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…

2023

A Survey on User Behavior Modeling in Recommender Systems

IJCAI 2023poster

User Behavior Modeling (UBM) plays a critical role in user interest learning, which has been extensively used in recommender systems. Crucial interactive patterns between users and items have been exploited, which brings compelling improvements in many recommendation tasks. In this paper, we attempt…

Cited by 35SourcePDFScholar
2023

Adaptive Low-Precision Training for Embeddings in Click-Through Rate Prediction

AAAI 2023technical

Embedding tables are usually huge in click-through rate (CTR) prediction models. To train and deploy the CTR models efficiently and economically, it is necessary to compress their embedding tables. To this end, we formulate a novel quantization training paradigm to compress the embeddings from the t…

Cited by 14SourcePDFScholar
2023

Optimal Transport for Treatment Effect Estimation

NeurIPS 2023poster

Estimating individual treatment effects from observational data is challenging due to treatment selection bias. Prevalent methods mainly mitigate this issue by aligning different treatment groups in the latent space, the core of which is the calculation of distribution discrepancy. However, two issu…

Cited by 58SourcePDFScholar
2023

REASONER: An Explainable Recommendation Dataset with Comprehensive Labeling Ground Truths

NeurIPS 2023poster

Explainable recommendation has attracted much attention from the industry and academic communities. It has shown great potential to improve the recommendation persuasiveness, informativeness and user satisfaction. In the past few years, while a lot of promising explainable recommender models have be…

2023

Set-to-Sequence Ranking-Based Concept-Aware Learning Path Recommendation

AAAI 2023technical

With the development of the online education system, personalized education recommendation has played an essential role. In this paper, we focus on developing path recommendation systems that aim to generating and recommending an entire learning path to the given user in each session. Noticing that…

Cited by 11SourcePDFScholar
2023

Structure Aware Incremental Learning with Personalized Imitation Weights for Recommender Systems

AAAI 2023technical

Recommender systems now consume large-scale data and play a significant role in improving user experience. Graph Neural Networks (GNNs) have emerged as one of the most effective recommender system models because they model the rich relational information. The ever-growing volume of data can make tra…

Cited by 10SourcePDFScholar
2022

Neural Re-ranking in Multi-stage Recommender Systems: A Review

IJCAI 2022poster

As the final stage of the multi-stage recommender system (MRS), re-ranking directly affects users’ experience and satisfaction by rearranging the input ranking lists, and thereby plays a critical role in MRS. With the advances in deep learning, neural re-ranking has become a trending topic and been…

2021

On Effective Scheduling of Model-based Reinforcement Learning

NeurIPS 2021poster

Model-based reinforcement learning has attracted wide attention due to its superior sample efficiency. Despite its impressive success so far, it is still unclear how to appropriately schedule the important hyperparameters to achieve adequate performance, such as the real data ratio for policy optimi…

2020

DropNAS: Grouped Operation Dropout for Differentiable Architecture Search

IJCAI 2020poster

Neural architecture search (NAS) has shown encouraging results in automating the architecture design. Recently, DARTS relaxes the search process with a differentiable formulation that leverages weight-sharing and SGD for cost reduction of NAS. In DARTS, all candidate operations are trained simulta…