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Tianyi Li

20 accepted papers

2026

Position: Reliable AI Needs to Externalize Implicit Knowledge: A Human–AI Collaboration Perspective

ICML 2026poster

This position paper argues that reliable AI requires infrastructure for human validation of implicit knowledge. AI learns from both explicit knowledge (papers, documentation, structured databases) and implicit knowledge (reasoning patterns, debugging processes, intermediate steps). Implicit knowledg…

Cited by 0SourceScholar
2025

Arrow: Accelerator for Time Series Causal Discovery with Time Weaving

ICML 2025poster

Current causal discovery methods for time series data can effectively address a variety of scenarios; however, they remain constrained by inefficiencies. The significant inefficiencies arise primarily from the high computational costs associated with binning, the uncertainty in selecting appropriate…

Cited by 0SourcePDFScholar
2025

Empirical Study on Data Attributes Insufficiency of Evaluation Benchmarks for LLMs

COLING 2025main

Previous benchmarks for evaluating large language models (LLMs) have primarily emphasized quantitative metrics, such as data volume. However, this focus may neglect key qualitative data attributes that can significantly impact the final rankings of LLMs, resulting in unreliable leaderboards. In this…

Cited by 0SourcePDFScholar
2025

HALLUCANA: Fixing LLM Hallucination with A Canary Lookahead

NAACL 2025findings

In this paper, we present HALLUCANA, a canary lookahead to detect and correct factual hallucinations of Large Language Models (LLMs) in long-form generation. HALLUCANA detects and intervenes as soon as traces of hallucination emerge, during and even before generation. To support timely detection, we…

2025

MPID: A Modality-Preserving and Interaction-Driven Fusion Network for Multimodal Sentiment Analysis

COLING 2025main

The advancement of social media has intensified interest in the research direction of Multimodal Sentiment Analysis (MSA). However, current methodologies exhibit relative limitations, particularly in their fusion mechanisms that overlook nuanced differences and similarities across modalities, leadin…

2025

Neutralizing Bias in LLM Reasoning using Entailment Graphs

ACL 2025finding

LLMs are often claimed to be capable of Natural Language Inference (NLI), which is widely regarded as a cornerstone of more complex forms of reasoning. However, recent works show that LLMs still suffer from hallucinations in NLI due to attestation bias, where LLMs overly rely on propositional memory…

2025

RobustZero: Enhancing MuZero Reinforcement Learning Robustness to State Perturbations

ICML 2025poster

The MuZero reinforcement learning method has achieved superhuman performance at games, and advances that enable MuZero to contend with complex actions now enable use of MuZero-class methods in real-world decision-making applications. However, some real-world applications are susceptible to state per…

Cited by 0SourcePDFScholar
2024

A Usage-centric Take on Intent Understanding in E-Commerce

EMNLP 2024main

Identifying and understanding user intents is a pivotal task for E-Commerce. Despite its essential role in product recommendation and business user profiling analysis, intent understanding has not been consistently defined or accurately benchmarked. In this paper, we focus on predicative user intent…

2024

Explicit Inductive Inference using Large Language Models

EMNLP 2024finding

Large Language Models (LLMs) are reported to hold undesirable attestation bias on inference tasks: when asked to predict if a premise P entails a hypothesis H, instead of considering H‘s conditional truthfulness entailed by P, LLMs tend to use the out-of-context truth label of H as a fragile proxy.…

2024

Fast and Communication-Efficient Multi-UAV Exploration Via Voronoi Partition on Dynamic Topological Graph

IROS 2024

Efficient data transmission and reasonable task allocation are important to improve multi-robot exploration efficiency. However, most communication data types typically contain redundant information and thus require massive communication volume. Moreover, exploration-oriented task allocation is far

Cited by 21SourcecodeScholar
2023

Align-then-Enhance: Multilingual Entailment Graph Enhancement with Soft Predicate Alignment

ACL 2023findings

Entailment graphs (EGs) with predicates as nodes and entailment relations as edges are typically incomplete, while EGs in different languages are often complementary to each other. In this paper, we propose a new task, multilingual entailment graph enhancement, which aims to utilize the entailment i…

Cited by 3SourcePDFScholar
2023

Sources of Hallucination by Large Language Models on Inference Tasks

EMNLP 2023long findings

Large Language Models (LLMs) are claimed to be capable of Natural Language Inference (NLI), necessary for applied tasks like question answering and summarization. We present a series of behavioral studies on several LLM families (LLaMA, GPT-3.5, and PaLM) which probe their behavior using controlled…

Cited by 0SourcecodeScholar
2022

Cross-lingual Inference with A Chinese Entailment Graph

ACL 2022findings

Predicate entailment detection is a crucial task for question-answering from text, where previous work has explored unsupervised learning of entailment graphs from typed open relation triples. In this paper, we present the first pipeline for building Chinese entailment graphs, which involves a novel…

2022

Language Models Are Poor Learners of Directional Inference

EMNLP 2022finding

We examine LMs’ competence of directional predicate entailments by supervised fine-tuning with prompts. Our analysis shows that contrary to their apparent success on standard NLI, LMs show limited ability to learn such directional inference; moreover, existing datasets fail to test directionality, a…

2020

Early Exit Or Not: Resource-Efficient Blind Quality Enhancement for Compressed Images

ECCV 2020poster

Lossy image compression is pervasively conducted to save communication bandwidth, resulting in undesirable compression artifacts. Recently, extensive approaches have been proposed to reduce image compression artifacts at the decoder side; however, they require a series of architecture-identical mode…