🏢 Chinese University of Hong Kong
Vision Foundation Model Enables Generalizable Object Pose Estimation
·3435 words·17 mins·
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AI Generated
Computer Vision
3D Vision
🏢 Chinese University of Hong Kong
VFM-6D: a novel framework achieving generalizable object pose estimation for unseen categories by leveraging vision-language models.
Unlocking the Capabilities of Thought: A Reasoning Boundary Framework to Quantify and Optimize Chain-of-Thought
·2755 words·13 mins·
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Large Language Models
🏢 Chinese University of Hong Kong
Reasoning Boundary Framework (RBF) quantitatively assesses and optimizes chain-of-thought (CoT) in LLMs, offering novel metrics and optimization strategies validated across various models and tasks.
Towards an Information Theoretic Framework of Context-Based Offline Meta-Reinforcement Learning
·2208 words·11 mins·
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Reinforcement Learning
🏢 Chinese University of Hong Kong
UNICORN: a unified framework reveals that existing offline meta-reinforcement learning algorithms optimize variations of mutual information, leading to improved generalization.
Towards a Scalable Reference-Free Evaluation of Generative Models
·3926 words·19 mins·
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AI Generated
Machine Learning
Deep Learning
🏢 Chinese University of Hong Kong
FKEA: a novel, scalable method for reference-free evaluation of generative models’ diversity using random Fourier features, overcoming computational limitations of existing entropy-based scores.
Streaming Long Video Understanding with Large Language Models
·2706 words·13 mins·
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Natural Language Processing
Large Language Models
🏢 Chinese University of Hong Kong
VideoStreaming, a novel vision-language model, enables efficient and accurate understanding of arbitrarily long videos using a constant number of tokens via streaming encoding and adaptive memory sele…
Stochastic Optimization Schemes for Performative Prediction with Nonconvex Loss
·2232 words·11 mins·
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AI Generated
Machine Learning
Optimization
🏢 Chinese University of Hong Kong
Bias-free performative prediction is achieved using a novel lazy deployment scheme with SGD, handling non-convex loss functions.
Quantum Algorithms for Non-smooth Non-convex Optimization
·360 words·2 mins·
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AI Theory
Optimization
🏢 Chinese University of Hong Kong
Quantum algorithms achieve speedups in non-smooth, non-convex optimization, outperforming classical methods by a factor of ε⁻²/³ in query complexity for finding (δ,ε)-Goldstein stationary points.
Natural Counterfactuals With Necessary Backtracking
·3858 words·19 mins·
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AI Generated
AI Theory
Causality
🏢 Chinese University of Hong Kong
This paper proposes ’natural counterfactuals’ for more realistic counterfactual reasoning in AI, using backtracking to minimize deviations from observed data while ensuring feasibility.
Multi-Stage Predict+Optimize for (Mixed Integer) Linear Programs
·2926 words·14 mins·
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AI Generated
Machine Learning
Optimization
🏢 Chinese University of Hong Kong
Multi-Stage Predict+Optimize tackles optimization problems where parameters are revealed sequentially, improving predictions and decisions through stage-wise updates.
MR-Ben: A Meta-Reasoning Benchmark for Evaluating System-2 Thinking in LLMs
·4032 words·19 mins·
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AI Generated
Natural Language Processing
Large Language Models
🏢 Chinese University of Hong Kong
MR-Ben: A new benchmark reveals LLMs’ meta-reasoning flaws, pushing the boundaries of AI evaluation beyond simple accuracy.
Intrinsic Robustness of Prophet Inequality to Strategic Reward Signaling
·248 words·2 mins·
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AI Generated
AI Theory
Robustness
🏢 Chinese University of Hong Kong
Strategic players can manipulate reward signals, but simple threshold policies still achieve a surprisingly good approximation to the optimal prophet value, even in this more realistic setting.
InterControl: Zero-shot Human Interaction Generation by Controlling Every Joint
·2703 words·13 mins·
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AI Generated
Multimodal Learning
Vision-Language Models
🏢 Chinese University of Hong Kong
InterControl: Zero-shot multi-person interaction generation by precisely controlling every joint using only single-person data.
HORSE: Hierarchical Representation for Large-Scale Neural Subset Selection
·1821 words·9 mins·
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Machine Learning
Deep Learning
🏢 Chinese University of Hong Kong
HORSE: A novel attention-based neural network significantly improves large-scale neural subset selection by up to 20%, addressing limitations in existing methods.
GREAT Score: Global Robustness Evaluation of Adversarial Perturbation using Generative Models
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AI Theory
Robustness
🏢 Chinese University of Hong Kong
GREAT Score: A novel framework using generative models for efficiently and accurately evaluating the global robustness of machine learning models against adversarial attacks.
Gradient Cuff: Detecting Jailbreak Attacks on Large Language Models by Exploring Refusal Loss Landscapes
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Natural Language Processing
Large Language Models
🏢 Chinese University of Hong Kong
Gradient Cuff: A novel defense mechanism against LLM jailbreaks, leveraging refusal loss landscapes for improved malicious query rejection without harming model performance on benign inputs.
Flaws can be Applause: Unleashing Potential of Segmenting Ambiguous Objects in SAM
·2042 words·10 mins·
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Computer Vision
Image Segmentation
🏢 Chinese University of Hong Kong
A-SAM: Turning SAM’s inherent ambiguity into an advantage for controllable, diverse, and convincing ambiguous object segmentation.
Adapting to Unknown Low-Dimensional Structures in Score-Based Diffusion Models
·393 words·2 mins·
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Machine Learning
Deep Learning
🏢 Chinese University of Hong Kong
Score-based diffusion models are improved by a novel coefficient design, enabling efficient adaptation to unknown low-dimensional data structures and achieving a convergence rate of O(k²/√T).