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Tao Ren

24 accepted papers

2026

CLINIC: Towards High-quality Graph Out-Of-Distribution Detection

ICML 2026poster

This paper studies the problem of graph out-of-distribution (OOD) detection, which aims to identify anomaly graphs out of a graph dataset. Prior efforts usually focus on the utilization of topological structures with unsupervised graph learning to foster typical pattern recognition, which overlooks …

Cited by 0SourceScholar
2026

CURE: Context-driven Diffusion with Progressive Expansion for Single Domain Generalization in Time Series Classification

ICML 2026poster

This paper studies the problem of single domain generalization in time series classification, which aims to learn a generalized time series classification model using a single source domain. This problem is highly challenging due to unreliable supervision from domain scarcity. Although current appro…

Cited by 0SourceScholar
2026

DoKnowAD: Calibrating Normal Representations with Refined Domain Knowledge to Enhance Time Series Anomaly Detection

AAAI 2026technical

Time series anomaly detection (TSAD) is critical in various real-world applications. Due to the high cost of manual annotation, unsupervised methods are commonly employed to distinguish abnormal patterns from normal ones based on data or representation characteristics. However, the limited coverage

Cited by 0SourcePDFScholar
2026

FairGC: Fostering Individual and Group Fairness for Deep Graph Clustering

AAAI 2026technical

The widespread adoption of graph neural networks (GNNs) has brought increased attention to fairness issues related to sensitive attributes, such as gender and race, in practical scenarios. However, this concern remains largely unexplored in the context of graph clustering. Conventional fair graph cl

Cited by 0SourcePDFScholar
2026

From Scene to Object: Enhancing Open-Vocabulary Object Detection via Foreground-Background Context Reasoning

AAAI 2026technical

Open-Vocabulary Object Detection (OVOD) aims to detect both known and novel categories in complex visual scenes, surpassing the limitations of conventional closed-set detectors. Recent advances in vision-language models (VLMs) like CLIP have enabled zero-shot recognition by aligning visual features

Cited by 0SourcePDFScholar
2026

Half-order Fine-Tuning for Diffusion Model: A Recursive Likelihood Ratio Optimizer

ICLR 2026oral

The probabilistic diffusion model (DM), generating content by inferencing through a recursive chain structure, has emerged as a powerful framework for visual generation. After pre-training on enormous data, the model needs to be properly aligned to meet requirements for downstream applications. How…

Cited by 0SourcecodeScholar
2026

Many Minds, One Path: LLM-Augmented Consensus Decision for Distributed Control in Multi-Agent Collaborative Stable Scenarios

AAAI 2026technical

Distributed multi-agent systems are increasingly deployed in dynamic and high-stakes environments such as power grids, intelligent traffic systems, and collaborative robotics. In these systems, long-term stability, the ability to maintain coherent and safe system behavior over time, is critical but

Cited by 0SourcePDFScholar
2026

OVLR: Efficient, Scalable, and Robust Training via Output-Level Variance-Reduced Likelihood Ratio

ICML 2026poster

Gradient-based optimization is fundamental to deep learning, yet standard backpropagation (BP) is inherently limited by the requirement of differentiability, rendering it brittle when encountering piecewise-constant objectives with vanishing gradients (e.g., hard 0-1 loss) or black-box feedback. Whi…

Cited by 0SourceScholar
2026

RiskPO: Risk-based Policy Optimization with Verifiable Reward for LLM Post-Training

ICLR 2026poster

Reinforcement learning with verifiable reward has recently emerged as a central paradigm for post-training large language models (LLMs); however, prevailing mean-based methods, such as Group Relative Policy Optimization (GRPO), suffer from entropy collapse and limited reasoning gains. We argue that…

Cited by 0SourcecodeScholar
2025

Benefit From Seen: Enhancing Open-Vocabulary Object Detection by Bridging Visual and Textual Co-Occurrence Knowledge

ICCV 2025poster

Open-Vocabulary Object Detection (OVOD) aims to localize and recognize objects from both known and novel categories. However, existing methods rely heavily on internal knowledge from Vision-Language Models (VLMs), restricting their generalization to unseen categories due to limited contextual unders…

Cited by 0SourcePDFScholar
2025

Bridging the Editing Gap in LLMs: FineEdit for Precise and Targeted Text Modifications

EMNLP 2025

Large Language Models (LLMs) have significantly advanced natural language processing, demonstrating strong capabilities in tasks such as text generation, summarization, and reasoning. Recently, their potential for automating precise text editing tasks across specialized domains, such as programming

2025

CateEA: Enhancing Entity Alignment via Implicit Category Supervision

COLING 2025main

Entity Alignment (EA) is essential for integrating Knowledge Graphs (KGs) by matching equivalent entities across diverse KGs. With the rise of multi-modal KGs, which emerged to better depict real-world KGs by integrating visual, textual, and structured data, Multi-Modal Entity Alignment (MMEA) has b…

Cited by 0SourcePDFScholar
2025

FLOPS: Forward Learning with OPtimal Sampling

ICLR 2025poster

Given the limitations of backpropagation, perturbation-based gradient computation methods have recently gained focus for learning with only forward passes, also referred to as queries. Conventional forward learning consumes enormous queries on each data point for accurate gradient estimation through…

2025

LEAF: Large Language Diffusion Model for Time Series Forecasting

EMNLP 2025

This paper studies the problem of time series forecasting, which aims to generate future predictions given historical trajectories. Recent researchers have applied large language models (LLMs) into time series forecasting, which usually align the time series space with textual space and output futur

Cited by 0SourcePDFScholar
2025

Let Modalities Teach Each Other: Modal-Collaborative Knowledge Extraction and Fusion for Multimodal Knowledge Graph Completion

NAACL 2025findings

Multimodal knowledge graph completion (MKGC) aims to predict missing triples in MKGs using multimodal information. Recent research typically either extracts information from each modality separately to predict, then ensembles the predictions at the decision stage, or projects multiple modalities int…

Cited by 0SourcePDFScholar
2025

SCOUT: Teaching Pre-trained Language Models to Enhance Reasoning via Flow Chain-of-Thought

NeurIPS 2025poster

Chain-of-Thought (CoT) prompting improves the reasoning performance of large language models (LLMs) by encouraging step-by-step thinking. However, CoT-based methods depend on intermediate reasoning steps, which limits scalability and generalization. Recent work explores recursive reasoning, where L…

Cited by 0SourceScholar
2024

Untethered Soft Rolling Robot Based on Pneumatic-Tendon Coupled Actuation

RA-L 2024

The Soft Rolling Robot (SRR) excels in adaptability across diverse natural terrains, demonstrating significant flexibility, environmental interaction capabilities, and impact resistance. However, the development of Untethered Soft Rolling Robots (USRR) faces challenges in locomotion speed and contro

Cited by 4SourceScholar
2021

ArtCoder: An End-to-End Method for Generating Scanning-Robust Stylized QR Codes

CVPR 2021poster

Quick Response (QR) code is one of the most worldwide used two-dimensional codes. Traditional QR codes appear as random collections of black-and-white modules that lack visual semantics and aesthetic elements, which inspires the recent works to beautify the appearances of QR codes. However, these wo…

Cited by 13PDFcodeScholar
2020

A Variable Stiffness Soft Continuum Robot Based on Pre-charged Air, Particle Jamming, and Origami

ICRA 2020poster

Soft continuum robots have many applications such as medical surgeries, service industries, rescue tasks, and underwater exploration. Flexibility and good accessibility of such robots are the key reasons for their popularity. However, the complexity of their structural design and control systems lim…

Cited by 29SourceScholar
2018

Passive and Active Particle Damping in Soft Robotic Actuators *This work is funded by a Basic Research Grant from the University of Hong Kong

ICRA 2018

Soft robotic actuators are highly elastic bodies that oscillate drastically once excited. This oscillation is undesirable in many applications. So far, very little studies on soft actuator damping have been reported. In this paper, we report a simple and effective vibration damping method based on p

Cited by 27SourceScholar