Search Results for author: Tie Liu

Found 12 papers, 4 papers with code

From Function to Distribution Modeling: A PAC-Generative Approach to Offline Optimization

no code implementations4 Jan 2024 Qiang Zhang, Ruida Zhou, Yang shen, Tie Liu

This paper considers the problem of offline optimization, where the objective function is unknown except for a collection of ``offline" data examples.

Exactly Tight Information-Theoretic Generalization Error Bound for the Quadratic Gaussian Problem

no code implementations1 May 2023 Ruida Zhou, Chao Tian, Tie Liu

We provide a new information-theoretic generalization error bound that is exactly tight (i. e., matching even the constant) for the canonical quadratic Gaussian (location) problem.

Learning to Predict 3D Lane Shape and Camera Pose from a Single Image via Geometry Constraints

1 code implementation31 Dec 2021 Ruijin Liu, Dapeng Chen, Tie Liu, Zhiliang Xiong, Zejian yuan

In this task, the correct camera pose is the key to generating accurate lanes, which can transform an image from perspective-view to the top-view.

3D Lane Detection Autonomous Vehicles +2

Individually Conditional Individual Mutual Information Bound on Generalization Error

no code implementations17 Dec 2020 Ruida Zhou, Chao Tian, Tie Liu

We propose a new information-theoretic bound on generalization error based on a combination of the error decomposition technique of Bu et al. and the conditional mutual information (CMI) construction of Steinke and Zakynthinou.

LEMMA

End-to-end Lane Shape Prediction with Transformers

2 code implementations9 Nov 2020 Ruijin Liu, Zejian yuan, Tie Liu, Zhiliang Xiong

To tackle these issues, we propose an end-to-end method that directly outputs parameters of a lane shape model, using a network built with a transformer to learn richer structures and context.

Lane Detection

Multiple Sample Clustering

no code implementations22 Oct 2019 Xiang Wang, Tie Liu

The clustering algorithms that view each object data as a single sample drawn from a certain distribution, Gaussian distribution, for example, has been a hot topic for decades.

Clustering

Removing Rain in Videos: A Large-scale Database and A Two-stream ConvLSTM Approach

no code implementations6 Jun 2019 Tie Liu, Mai Xu, Zulin Wang

In this paper, we establish a large-scale video database for rain removal (LasVR), which consists of 316 rain videos.

Rain Removal

MFQE 2.0: A New Approach for Multi-frame Quality Enhancement on Compressed Video

1 code implementation26 Feb 2019 Qunliang Xing, Zhenyu Guan, Mai Xu, Ren Yang, Tie Liu, Zulin Wang

Finally, experiments validate the effectiveness and generalization ability of our MFQE approach in advancing the state-of-the-art quality enhancement of compressed video.

Video Enhancement Video Restoration

DeepVS: A Deep Learning Based Video Saliency Prediction Approach

1 code implementation ECCV 2018 Lai Jiang, Mai Xu, Tie Liu, Minglang Qiao, Zulin Wang

Hence, an object-to-motion convolutional neural network (OM-CNN) is developed to predict the intra-frame saliency for DeepVS, which is composed of the objectness and motion subnets.

Saliency Prediction Video Saliency Detection +1

Enhancing Quality for HEVC Compressed Videos

no code implementations20 Sep 2017 Ren Yang, Mai Xu, Tie Liu, Zulin Wang, Zhenyu Guan

Our experimental results validate that our QE-CNN method is effective in enhancing quality for both I and P frames of HEVC videos.

Multimedia

Detection of Cooperative Interactions in Logistic Regression Models

no code implementations12 Feb 2016 Easton Li Xu, Xiaoning Qian, Tie Liu, Shuguang Cui

For the case when the underlying interaction graph is known to be acyclic, it is shown that a simple algorithm that is based on a maximum-weight spanning tree with respect to the plug-in estimates of the influences not only has strong theoretical performance guarantees, but can also outperform generic feature selection algorithms for recovering the interaction graph from i. i. d.

feature selection regression

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