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Tong Liu

36 accepted papers

2026

Graph of States: Solving Abductive Tasks with Large Language Models

ICML 2026poster

Logical reasoning encompasses deduction, induction, and abduction. However, while Large Language Models (LLMs) have effectively mastered the former two, abductive reasoning remains significantly underexplored. Existing frameworks, predominantly designed for static deductive tasks, fail to generalize…

Cited by 0SourceScholar
2026

On Effectiveness and Efficiency of Agentic Tool-calling and RL Training

ICML 2026poster

Tool-calling is a central component of modern large language model (LLM) agents, equipping them with skills beyond their parametric knowledge. This paper studies tool-calling along two complementary axes: \textbf{effectiveness}, i.e., how this capability is \textit{measured}, and \textbf{efficiency}…

Cited by 0SourceScholar
2026

TUNI: Real-Time RGB-T Semantic Segmentation with Unified Multi-Modal Feature Extraction and Cross-Modal Feature Fusion

ICRA 2026poster

RGB-thermal (RGB-T) semantic segmentation improves the environmental perception of autonomous platforms in challenging conditions. Prevailing models employ encoders pre-trained on RGB images to extract features from both RGB and infrared inputs, and design additional modules to achieve cross-modal f…

Cited by 0codeScholar
2025

AVD2: Accident Video Diffusion for Accident Video Description

ICRA 2025

Traffic accidents present complex challenges for autonomous driving, often featuring unpredictable scenarios that hinder accurate system interpretation and responses. Nonetheless, prevailing methodologies fall short in elucidating the causes of accidents and proposing preventive measures due to the

Cited by 18SourcecodeScholar
2025

Cross-modal State Space Modeling for Real-time RGB-thermal Wild Scene Semantic Segmentation

IROS 2025

The integration of RGB and thermal data can significantly improve semantic segmentation performance in wild environments for field robots. Nevertheless, multi-source data processing (e.g. Transformer-based approaches) imposes significant computational overhead, presenting challenges for resource-con

Cited by 3SourcecodeScholar
2025

DeepMatch: Navigating the Complexities of Underwater Textures for Enhanced Keypoint Matching

ICASSP 2025accepted

Driven by demands for oceanic exploration, advancements in 3D visual tasks based on video frames are essential. Keypoint matching, essential for camera pose and motion, is hindered by the unique challenges of underwater imagery, such as sparse and repetitive textures. To tackle these issues, we intr…

Cited by 0SourceScholar
2025

Enhancing Small Model Performance in Educational Classification Tasks through Knowledge Distillation

ICASSP 2025accepted

As the demand for precision, efficiency, and low-cost solutions in educational classification tasks continues to grow, enhancing model performance has become a critical focus of research. While large language models excel in these tasks, their high cost and resource requirements limit widespread app…

Cited by 0SourceScholar
2025

FocalPO: Enhancing Preference Optimizing by Focusing on Correct Preference Rankings

ACL 2025short

Efficient preference optimization algorithms such as Direct Preference Optimization (DPO) have become a popular approach in aligning large language models (LLMs) with human preferences. These algorithms implicitly treat the LLM as a reward model, and focus on training it to correct misranked prefere…

2025

Layer Decomposition and Morphological Reconstruction for Task-Oriented Infrared Image Enhancement

IROS 2025

Infrared image helps improve the perception capabilities of autonomous driving in complex weather conditions such as fog, rain, and low light. However, infrared image often suffers from low contrast, especially in non-heat-emitting targets like bicycles, which significantly affects the performance o

Cited by 0SourceScholar
2025

LipsNet++: Unifying Filter and Controller into a Policy Network

ICML 2025spotlight

Deep reinforcement learning (RL) is effective for decision-making and control tasks like autonomous driving and embodied AI. However, RL policies often suffer from the action fluctuation problem in real-world applications, resulting in severe actuator wear, safety risk, and performance degradation.…

2025

Multimodal Pragmatic Jailbreak on Text-to-image Models

ACL 2025long

Diffusion models have recently achieved remarkable advancements in terms of image quality and fidelity to textual prompts. Concurrently, the safety of such generative models has become an area of growing concern. This work introduces a novel type of jailbreak, which triggers T2I models to generate t…

Cited by 0SourcePDFScholar
2025

ODE-based Smoothing Neural Network for Reinforcement Learning Tasks

ICLR 2025spotlight

The smoothness of control actions is a significant challenge faced by deep reinforcement learning (RL) techniques in solving optimal control problems. Existing RL-trained policies tend to produce non-smooth actions due to high-frequency input noise and unconstrained Lipschitz constants in neural net…

Cited by 0SourcePDFScholar
2025

One Arrow, Two Hawks: Sharpness-aware Minimization for Federated Learning via Global Model Trajectory

ICML 2025poster

Federated learning (FL) presents a promising strategy for distributed and privacy-preserving learning, yet struggles with performance issues in the presence of heterogeneous data distributions. Recently, a series of works based on sharpness-aware minimization (SAM) have emerged to improve local lea…

2025

PerfSeer: An Efficient and Accurate Deep Learning Models Performance Predictor

IJCAI 2025

Predicting the performance of deep learning (DL) models, such as execution time and resource utilization, is crucial for Neural Architecture Search (NAS), DL cluster schedulers, and other technologies that advance deep learning. The representation of a model is the foundation for its performance pre

2025

SMEC:Rethinking Matryoshka Representation Learning for Retrieval Embedding Compression

EMNLP 2025

Large language models (LLMs) generate high-dimensional embeddings that capture rich semantic and syntactic information. However, high-dimensional embeddings exacerbate computational complexity and storage requirements, thereby hindering practical deployment. To address these challenges, we propose a

Cited by 0SourcePDFScholar
2024

Cross-Domain Few-Shot Object Detection via Enhanced Open-Set Object Detector

ECCV 2024poster

"This paper studies the challenging cross-domain few-shot object detection (CD-FSOD), aiming to develop an accurate object detector for novel domains with minimal labeled examples. While transformer-based open-set detectors, such as DE-ViT, show promise in traditional few-shot object detection, thei…

2024

Diffusion Actor-Critic with Entropy Regulator

NeurIPS 2024poster

Reinforcement learning (RL) has proven highly effective in addressing complex decision-making and control tasks. However, in most traditional RL algorithms, the policy is typically parameterized as a diagonal Gaussian distribution with learned mean and variance, which constrains their capability to…

2024

HiFT: A Hierarchical Full Parameter Fine-Tuning Strategy

EMNLP 2024main

Full-parameter fine-tuning (FPFT) has become the go-to choice for adapting language models (LMs) to downstream tasks due to its excellent performance. As LMs grow in size, fine-tuning the full parameters of LMs requires a prohibitively large amount of GPU memory. Existing approaches utilize zeroth-o…

2024

Robust Collaborative Perception against Temporal Information Disturbance

ICRA 2024poster

Collaborative perception facilitates a more comprehensive representation of the environment by leveraging complementary information shared among various agents and sensors. However, practical applications often encounter information disturbance which includes perception packet loss and time delays,…

Cited by 3SourcecodeScholar
2024

Temperature-scaling surprisal estimates improve fit to human reading times – but does it do so for the “right reasons”?

ACL 2024long

A wide body of evidence shows that human language processing difficulty is predicted by the information-theoretic measure surprisal, a word’s negative log probability in context. However, it is still unclear how to best estimate these probabilities needed for predicting human processing difficulty –…

2024

Test-Time Linear Out-of-Distribution Detection

CVPR 2024poster

Out-of-Distribution (OOD) detection aims to address the excessive confidence prediction by neural networks by triggering an alert when the input sample deviates significantly from the training distribution (in-distribution) indicating that the output may not be reliable. Current OOD detection approa…

2023

Active Negative Loss Functions for Learning with Noisy Labels

NeurIPS 2023poster

Robust loss functions are essential for training deep neural networks in the presence of noisy labels. Some robust loss functions use Mean Absolute Error (MAE) as its necessary component. For example, the recently proposed Active Passive Loss (APL) uses MAE as its passive loss function. However, MAE…

2023

Cross-Domain Facial Expression Recognition via Disentangling Identity Representation

IJCAI 2023poster

Most existing cross-domain facial expression recognition (FER) works require target domain data to assist the model in analyzing distribution shifts to overcome negative effects. However, it is often hard to obtain expression images of the target domain in practical applications. Moreover, existing…

Cited by 9SourcePDFScholar
2023

Deep Interactive Full Transformer Framework for Point Cloud Registration

ICRA 2023poster

Point cloud registration is a crucial technology in the fields of robotics and computer vision. Despite the significant advances in point cloud registration enabled by Transformer-based methods, limitations persist due to indistinct feature extraction, noise sensitivity, and outlier handling. These…

Cited by 7SourcecodeScholar
2023

GradPU: Positive-Unlabeled Learning via Gradient Penalty and Positive Upweighting

AAAI 2023technical

Positive-unlabeled learning is an essential problem in many real-world applications with only labeled positive and unlabeled data, especially when the negative samples are difficult to identify. Most existing positive-unlabeled learning methods will inevitably overfit the positive class to some exte…

Cited by 8SourcePDFScholar
2023

Hierarchical Semantic Contrast for Weakly Supervised Semantic Segmentation

IJCAI 2023poster

Weakly supervised semantic segmentation (WSSS) with image-level annotations has achieved great processes through class activation map (CAM). Since vanilla CAMs are hardly served as guidance to bridge the gap between full and weak supervision, recent studies explore semantic representations to make C…

2022

sunny-as2: Enhancing SUNNY for Algorithm Selection (Extended Abstract)

IJCAI 2022poster

SUNNY is a k-nearest neighbors based Algorithm Selection (AS) approach that schedules and runs a number of solvers for a given unforeseen problem. In this work we present sunny-as2, an enhancement of SUNNY for generic AS scenarios that advances the original approach with wrapper-based feature select…

2021

KGDet: Keypoint-Guided Fashion Detection

AAAI 2021technical

Locating and classifying clothes, usually referred to as clothing detection, is a fundamental task in fashion analysis. Motivated by the strong structural characteristics of clothes, we pursue a detection method enhanced by clothing keypoints, which is a compact and effective representation of struc…

2020

Dynamic Object Tracking for Self-Driving Cars Using Monocular Camera and LIDAR

IROS 2020poster

The detection and tracking of dynamic traffic participants (e.g., pedestrians, cars, and bicyclists) plays an important role in reliable decision-making and intelligent navigation for autonomous vehicles. However, due to the rapid movement of the target, most current vision-based tracking methods, w…

Cited by 16SourceScholar
2019

New Convex Relaxations for MRF Inference With Unknown Graphs

ICCV 2019poster

Treating graph structures of Markov random fields as unknown and estimating them jointly with labels have been shown to be useful for modeling human activity recognition and other related tasks. We propose two novel relaxations for solving this problem. The first is a linear programming (LP) relaxat…

Cited by 6PDFScholar
2018

A Method to Identify the Nonlinear Stiffness Characteristics of an Elastic Continuum Mechanism

RA-L 2018

The humanoid robot David is equipped with a novel robotic neck based on an elastic continuum mechanism (ECM). To realize a model-based motion control, the six dimensional stiffness characteristics needs to be known. This letter presents an approach to experimentally identify the stiffness characteri

Cited by 15SourceScholar