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Chang-Tien Lu

16 accepted papers

2026

Collaborative LLM Numerical Reasoning with Local Data Protection

AAAI 2026technical

Numerical reasoning over documents, which demands both contextual understanding and logical inference, is challenging for low-capacity local models deployed on computation-constrained devices. Although such complex reasoning queries could be routed to powerful remote models like GPT-4, exposing loca

Cited by 0SourcePDFScholar
2026

Explainable Federated Learning via Global–Local Attribution Alignment

ICML 2026poster

Federated learning enables on-device training without centralizing data, yet existing systems still struggle to provide explanations that are both locally faithful and globally consistent under strict privacy and bandwidth constraints. Prior approaches either keep explanations siloed across clients,…

Cited by 0SourceScholar
2026

Optimizing Product Provenance Verification Using Data Valuation Methods

AAAI 2026technical

Determining and verifying product provenance remains a critical challenge in global supply chains, particularly as geopolitical conflicts and shifting borders create new incentives for misrepresentation of commodities, such as hiding the origin of illegally harvested timber or stolen agricultural pr

Cited by 0SourcePDFScholar
2024

AMA-LSTM: Pioneering Robust and Fair Financial Audio Analysis for Stock Volatility Prediction

NAACL 2024industry

Stock volatility prediction is an important task in the financial industry. Recent multimodal methods have shown advanced results by combining text and audio information, such as earnings calls. However, these multimodal methods have faced two drawbacks. First, they often fail to yield reliable mode…

2024

Can LLM Find the Green Circle? Investigation and Human-Guided Tool Manipulation for Compositional Generalization

ICASSP 2024accepted

The meaning of complex phrases in natural language is composed of their individual components. The task of compositional generalization evaluates a model’s ability to understand new combinations of components. Previous studies trained smaller, task-specific models, which exhibited poor generalizatio…

Cited by 0SourceScholar
2024

Can We Trust the Performance Evaluation of Uncertainty Estimation Methods in Text Summarization?

EMNLP 2024main

Text summarization, a key natural language generation (NLG) task, is vital in various domains. However, the high cost of inaccurate summaries in risk-critical applications, particularly those involving human-in-the-loop decision-making, raises concerns about the reliability of uncertainty estimation…

2024

DC-Gaussian: Improving 3D Gaussian Splatting for Reflective Dash Cam Videos

NeurIPS 2024poster

We present DC-Gaussian, a new method for generating novel views from in-vehicle dash cam videos. While neural rendering techniques have made significant strides in driving scenarios, existing methods are primarily designed for videos collected by autonomous vehicles. However, these videos are limite…

2024

Don’t Go To Extremes: Revealing the Excessive Sensitivity and Calibration Limitations of LLMs in Implicit Hate Speech Detection

ACL 2024long

The fairness and trustworthiness of Large Language Models (LLMs) are receiving increasing attention. Implicit hate speech, which employs indirect language to convey hateful intentions, occupies a significant portion of practice. However, the extent to which LLMs effectively address this issue remain…

Cited by 20SourcePDFScholar
2024

InternalInspector I2: Robust Confidence Estimation in LLMs through Internal States

EMNLP 2024finding

Despite their vast capabilities, Large Language Models (LLMs) often struggle with generating reliable outputs, frequently producing high-confidence inaccuracies known as hallucinations. Addressing this challenge, our research introduces InternalInspector, a novel framework designed to enhance confid…

Cited by 2SourcePDFScholar
2024

Learning Decentralized Flocking Controllers with Spatio-Temporal Graph Neural Network

ICRA 2024poster

Recently a line of research has delved into the use of graph neural networks (GNNs) for decentralized control in swarm robotics. However, it has been observed that relying solely on the states of immediate neighbors is insufficient to imitate a centralized control policy. To address this limitation,…

Cited by 2SourceScholar
2024

Uncertainty Estimation on Sequential Labeling via Uncertainty Transmission

NAACL 2024findings

Sequential labeling is a task predicting labels for each token in a sequence, such as Named Entity Recognition (NER). NER tasks aim to extract entities and predict their labels given a text, which is important in information extraction. Although previous works have shown great progress in improving…

2023

Exploring Tradeoffs in Automated School Redistricting: Computational and Ethical Perspectives

AAAI 2023technical

The US public school system is administered by local school districts. Each district comprises a set of schools mapped to attendance zones which are annually assessed to meet enrollment objectives. To support school officials in redrawing attendance boundaries, existing approaches have proven promis…

2023

TART: Improved Few-shot Text Classification Using Task-Adaptive Reference Transformation

ACL 2023long

Meta-learning has emerged as a trending technique to tackle few-shot text classification and achieve state-of-the-art performance. However, the performance of existing approaches heavily depends on the inter-class variance of the support set. As a result, it can perform well on tasks when the semant…

2022

Cross-Domain Few-Shot Semantic Segmentation

ECCV 2022poster

"Few-shot semantic segmentation aims at learning to segment a novel object class with only a few annotated examples. Most existing methods consider a setting where base classes are sampled from the same domain as the novel classes. However, in many applications, collecting sufficient training data f…

2022

Uncertainty-Aware Cross-Lingual Transfer with Pseudo Partial Labels

NAACL 2022findings

Large-scale multilingual pre-trained language models have achieved remarkable performance in zero-shot cross-lingual tasks. A recent study has demonstrated the effectiveness of self-learning-based approach on cross-lingual transfer, where only unlabeled data of target languages are required, without…

2021

Dynamic Multi-Context Attention Networks for Citation Forecasting of Scientific Publications

AAAI 2021technical

Forecasting citations of scientific patents and publications is a crucial task for understanding the evolution and development of technological domains and for foresight into emerging technologies. By construing citations as a time series, the task can be cast into the domain of temporal point proce…