Search Results for author: Lei Xiao

Found 12 papers, 1 papers with code

Deep 3D Mask Volume for View Synthesis of Dynamic Scenes

no code implementations30 Aug 2021 Kai-En Lin, Lei Xiao, Feng Liu, Guowei Yang, Ravi Ramamoorthi

Image view synthesis has seen great success in reconstructing photorealistic visuals, thanks to deep learning and various novel representations.

Follow the Prophet: Accurate Online Conversion Rate Prediction in the Face of Delayed Feedback

no code implementations13 Aug 2021 Haoming Li, Feiyang Pan, Xiang Ao, Zhao Yang, Min Lu, Junwei Pan, Dapeng Liu, Lei Xiao, Qing He

The delayed feedback problem is one of the imperative challenges in online advertising, which is caused by the highly diversified feedback delay of a conversion varying from a few minutes to several days.

LiveView: Dynamic Target-Centered MPI for View Synthesis

no code implementations11 Jul 2021 Sushobhan Ghosh, Zhaoyang Lv, Nathan Matsuda, Lei Xiao, Andrew Berkovich, Oliver Cossairt

Existing Multi-Plane Image (MPI) based view-synthesis methods generate an MPI aligned with the input view using a fixed number of planes in one forward pass.

Novel View Synthesis

RUArt: A Novel Text-Centered Solution for Text-Based Visual Question Answering

1 code implementation24 Oct 2020 Zan-Xia Jin, Heran Wu, Chun Yang, Fang Zhou, Jingyan Qin, Lei Xiao, Xu-Cheng Yin

Text-based visual question answering (VQA) requires to read and understand text in an image to correctly answer a given question.

Optical Character Recognition Question Answering +1

KCoreMotif: An Efficient Graph Clustering Algorithm for Large Networks by Exploiting k-core Decomposition and Motifs

no code implementations21 Aug 2020 Gang Mei, Jingzhi Tu, Lei Xiao, Francesco Piccialli

Comparative results demonstrate that the proposed graph clustering algorithm is accurate yet efficient for large networks, which also means that it can be further used to evaluate the intra-cluster and inter-cluster trusts on large networks.

Graph Clustering

A feature-supervised generative adversarial network for environmental monitoring during hazy days

no code implementations5 Aug 2020 Ke Wang, Si-Yuan Zhang, Junlan Chen, Fan Ren, Lei Xiao

First, pairs of hazy and clean images are used as inputs to supervise the encoding process and obtain high-quality feature maps.

Field-aware Calibration: A Simple and Empirically Strong Method for Reliable Probabilistic Predictions

no code implementations26 May 2019 Feiyang Pan, Xiang Ao, Pingzhong Tang, Min Lu, Dapeng Liu, Lei Xiao, Qing He

It is often observed that the probabilistic predictions given by a machine learning model can disagree with averaged actual outcomes on specific subsets of data, which is also known as the issue of miscalibration.

Click-Through Rate Prediction

AdaDNNs: Adaptive Ensemble of Deep Neural Networks for Scene Text Recognition

no code implementations10 Oct 2017 Chun Yang, Xu-Cheng Yin, Zejun Li, Jianwei Wu, Chunchao Guo, Hongfa Wang, Lei Xiao

Recognizing text in the wild is a really challenging task because of complex backgrounds, various illuminations and diverse distortions, even with deep neural networks (convolutional neural networks and recurrent neural networks).

Scene Text Scene Text Recognition

PBODL : Parallel Bayesian Online Deep Learning for Click-Through Rate Prediction in Tencent Advertising System

no code implementations4 Jul 2017 Xun Liu, Wei Xue, Lei Xiao, Bo Zhang

Then we extend the model family to a variety of bayesian online models with increasing feature embedding capabilities, such as Sparse-MLP, FM-MLP and FFM-MLP.

Click-Through Rate Prediction

Discriminative Transfer Learning for General Image Restoration

no code implementations27 Mar 2017 Lei Xiao, Felix Heide, Wolfgang Heidrich, Bernhard Schölkopf, Michael Hirsch

Recently, several discriminative learning approaches have been proposed for effective image restoration, achieving convincing trade-off between image quality and computational efficiency.

Deblurring Demosaicking +2

Diffuse Mirrors: 3D Reconstruction from Diffuse Indirect Illumination Using Inexpensive Time-of-Flight Sensors

no code implementations CVPR 2014 Felix Heide, Lei Xiao, Wolfgang Heidrich, Matthias B. Hullin

The functional difference between a diffuse wall and a mirror is well understood: one scatters back into all directions, and the other one preserves the directionality of reflected light.

3D Reconstruction

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