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Qiuchi Li

14 accepted papers

2026

Grounding Multi-Hop Reasoning in Structural Causal Models via Group Relative Policy Optimization

ICML 2026poster

Multi-Hop Fact Verification (MHFV) necessitates complex reasoning across disparate evidence, posing significant challenges for Large Language Models (LLMs) which often suffer from hallucinations and fractured logical chains. Existing methods, while improving transparency via Chain-of-Thought (CoT), …

Cited by 0SourceScholar
2026

NurValues: Real-World Nursing Values Evaluation for Large Language Models in Clinical Context

ICLR 2026poster

While LLMs have demonstrated medical knowledge and conversational ability, their deployment in clinical practice raises new risks: patients may place greater trust in LLM-generated responses than in nurses' professional judgments, potentially intensifying nurse–patient conflicts. Such risks highligh…

Cited by 0SourcecodeScholar
2025

Bridging External and Parametric Knowledge: Mitigating Hallucination of LLMs with Shared-Private Semantic Synergy in Dual-Stream Knowledge

EMNLP 2025

Retrieval-augmented generation (RAG) aims to mitigate the hallucination of Large Language Models (LLMs) by retrieving and incorporating relevant external knowledge into the generation process. However, the external knowledge may contain noise and conflict with the parametric knowledge of LLMs, leadi

Cited by 0SourcePDFScholar
2025

Is Sarcasm Detection a Step-by-Step Reasoning Process in Large Language Models?

AAAI 2025technical

Elaborating a series of intermediate reasoning steps significantly improves the ability of large language models (LLMs) to solve complex problems, as such steps would evoke LLMs to think sequentially. However, human sarcasm understanding is often considered an intuitive and holistic cognitive proces…

2025

Learning LLM-as-a-Judge for Preference Alignment

ICLR 2025poster

Learning from preference feedback is a common practice for aligning large language models (LLMs) with human value. Conventionally, preference data is learned and encoded into a scalar reward model that connects a value head with an LLM to produce a scalar score as preference. However, scalar models…

2025

Towards the Law of Capacity Gap in Distilling Language Models

ACL 2025long

Language model (LM) distillation aims at distilling the knowledge in a large teacher LM to a small student one. As a critical issue facing LM distillation, a superior student often arises from a teacher of a relatively small scale instead of a larger one, especially in the presence of substantial ca…

2024

Task-agnostic Distillation of Encoder-Decoder Language Models

COLING 2024main

Finetuning pretrained language models (LMs) have enabled appealing performance on a diverse array of tasks. The intriguing task-agnostic property has driven a shifted focus from task-specific to task-agnostic distillation of LMs. While task-agnostic, compute-efficient, performance-preserved LMs can…

Cited by 2SourcePDFScholar
2023

CMMA: Benchmarking Multi-Affection Detection in Chinese Multi-Modal Conversations

NeurIPS 2023poster

Human communication has a multi-modal and multi-affection nature. The inter-relatedness of different emotions and sentiments poses a challenge to jointly detect multiple human affections with multi-modal clues. Recent advances in this field employed multi-task learning paradigms to render the inter-…

2021

An Entanglement-driven Fusion Neural Network for Video Sentiment Analysis

IJCAI 2021poster

Video data is multimodal in its nature, where an utterance can involve linguistic, visual and acoustic information. Therefore, a key challenge for video sentiment analysis is how to combine different modalities for sentiment recognition effectively. The latest neural network approaches achieve state…

Cited by 13SourcePDFScholar
2021

Quantum Cognitively Motivated Decision Fusion for Video Sentiment Analysis

AAAI 2021technical

Video sentiment analysis as a decision-making process is inherently complex, involving the fusion of decisions from multiple modalities and the so-caused cognitive biases. Inspired by recent advances in quantum cognition, we show that the sentiment judgment from one modality could be incompatible wi…

2021

Quantum-inspired Neural Network for Conversational Emotion Recognition

AAAI 2021technical

We provide a novel perspective on conversational emotion recognition by drawing an analogy between the task and a complete span of quantum measurement. We characterize different steps of quantum measurement in the process of recognizing speakers' emotions in conversation, and stitch them up with a q…

2021

What Does Your Smile Mean? Jointly Detecting Multi-Modal Sarcasm and Sentiment Using Quantum Probability

EMNLP 2021finding

Sarcasm and sentiment embody intrinsic uncertainty of human cognition, making joint detection of multi-modal sarcasm and sentiment a challenging task. In view of the advantages of quantum probability (QP) in modeling such uncertainty, this paper explores the potential of QP as a mathematical framewo…

Cited by 46SourcePDFScholar
2020

Encoding word order in complex embeddings

ICLR 2020spotlight

Sequential word order is important when processing text. Currently, neural networks (NNs) address this by modeling word position using position embeddings. The problem is that position embeddings capture the position of individual words, but not the ordered relationship (e.g., adjacency or precedenc…

Cited by 148SourcecodeScholar