Search Results for author: Qiwei Li

Found 7 papers, 7 papers with code

Enhancing Visually-Rich Document Understanding via Layout Structure Modeling

1 code implementation15 Aug 2023 Qiwei Li, Zuchao Li, Xiantao Cai, Bo Du, Hai Zhao

In this paper, we propose GraphLayoutLM, a novel document understanding model that leverages the modeling of layout structure graph to inject document layout knowledge into the model.

document understanding

Domain Randomization-Enhanced Depth Simulation and Restoration for Perceiving and Grasping Specular and Transparent Objects

1 code implementation7 Aug 2022 Qiyu Dai, Jiyao Zhang, Qiwei Li, Tianhao Wu, Hao Dong, Ziyuan Liu, Ping Tan, He Wang

Commercial depth sensors usually generate noisy and missing depths, especially on specular and transparent objects, which poses critical issues to downstream depth or point cloud-based tasks.

Pose Estimation Transparent objects

Discovering Clinically Meaningful Shape Features for the Analysis of Tumor Pathology Images

1 code implementation9 Dec 2020 Esteban Fernández Morales, Cong Zhang, Guanghua Xiao, Chul Moon, Qiwei Li

With the advanced imaging technology, digital pathology imaging of tumor tissue slides is becoming a routine clinical procedure for cancer diagnosis.

Bayesian Modeling of Microbiome Data for Differential Abundance Analysis

2 code implementations23 Feb 2019 Qiwei Li, Shuang Jiang, Andrew Y. Koh, Guanghua Xiao, Xiaowei Zhan

To overcome these challenges, we propose a Bayesian hierarchical modeling framework for the analysis of microbiome count data for differential abundance analysis.

Methodology

A Bayesian Zero-Inflated Negative Binomial Regression Model for the Integrative Analysis of Microbiome Data

1 code implementation23 Dec 2018 Shuang Jiang, Guanghua Xiao, Andrew Y. Koh, Qiwei Li, Xiaowei Zhan

Hence, we present an integrative Bayesian zero-inflated negative binomial regression model that can both distinguish differential abundant taxa with distinct phenotypes and quantify covariate-taxa effects.

Applications

A Bayesian Mark Interaction Model for Analysis of Tumor Pathology Images

1 code implementation22 Feb 2018 Qiwei Li, Xinlei Wang, Faming Liang, Guanghua Xiao

This statistical methodology not only presents a new model for characterizing spatial correlations in a multi-type spatial point pattern, but also provides a new perspective for understanding the role of cell-cell interactions in cancer progression.

Methodology 62M30, 62F15

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