Search Results for author: Xinran Liu

Found 15 papers, 5 papers with code

VastTrack: Vast Category Visual Object Tracking

1 code implementation6 Mar 2024 Liang Peng, Junyuan Gao, Xinran Liu, Weihong Li, Shaohua Dong, Zhipeng Zhang, Heng Fan, Libo Zhang

The rich annotations of VastTrack enables development of both the vision-only and the vision-language tracking.

Object Visual Object Tracking +1

Stereographic Spherical Sliced Wasserstein Distances

no code implementations4 Feb 2024 Huy Tran, Yikun Bai, Abihith Kothapalli, Ashkan Shahbazi, Xinran Liu, Rocio Diaz Martin, Soheil Kolouri

Comparing spherical probability distributions is of great interest in various fields, including geology, medical domains, computer vision, and deep representation learning.

Representation Learning Self-Supervised Learning

A Comparative Analysis of the COVID-19 Infodemic in English and Chinese: Insights from Social Media Textual Data

no code implementations14 Nov 2023 Jia Luo, Daiyun Peng, Lei Shi, Didier El Baz, Xinran Liu

This paper presents a comparative analysis of the COVID-19 infodemic in the English and Chinese languages, utilizing textual data extracted from social media platforms.

Misinformation Sentiment Analysis

LCOT: Linear circular optimal transport

no code implementations9 Oct 2023 Rocio Diaz Martin, Ivan Medri, Yikun Bai, Xinran Liu, Kangbai Yan, Gustavo K. Rohde, Soheil Kolouri

The optimal transport problem for measures supported on non-Euclidean spaces has recently gained ample interest in diverse applications involving representation learning.

Representation Learning

PT$\mathrm{L}^{p}$: Partial Transport $\mathrm{L}^{p}$ Distances

no code implementations25 Jul 2023 Xinran Liu, Yikun Bai, Huy Tran, Zhanqi Zhu, Matthew Thorpe, Soheil Kolouri

In this paper, we introduce partial transport $\mathrm{L}^{p}$ distances as a new family of metrics for comparing generic signals, benefiting from the robustness of partial transport distances.

Equivariant vs. Invariant Layers: A Comparison of Backbone and Pooling for Point Cloud Classification

no code implementations8 Jun 2023 Ashkan Shahbazi, Abihith Kothapalli, Xinran Liu, Robert Sheng, Soheil Kolouri

Our findings reveal that: 1) complex pooling methods, such as transport-based or attention-based poolings, can significantly boost the performance of simple backbones, but the benefits diminish for more complex backbones, 2) even complex backbones can benefit from pooling layers in low data scenarios, 3) surprisingly, the choice of pooling layers can have a more significant impact on the model's performance than adjusting the width and depth of the backbone, and 4) pairwise combination of pooling layers can significantly improve the performance of a fixed backbone.

Point Cloud Classification

Sharing Lifelong Reinforcement Learning Knowledge via Modulating Masks

1 code implementation18 May 2023 Saptarshi Nath, Christos Peridis, Eseoghene Ben-Iwhiwhu, Xinran Liu, Shirin Dora, Cong Liu, Soheil Kolouri, Andrea Soltoggio

The key idea is that the isolation of specific task knowledge to specific masks allows agents to transfer only specific knowledge on-demand, resulting in robust and effective distributed lifelong learning.

reinforcement-learning

Wasserstein Task Embedding for Measuring Task Similarities

1 code implementation24 Aug 2022 Xinran Liu, Yikun Bai, Yuzhe Lu, Andrea Soltoggio, Soheil Kolouri

Lastly, we leverage the 2-Wasserstein embedding framework to embed tasks into a vector space in which the Euclidean distance between the embedded points approximates the proposed 2-Wasserstein distance between tasks.

Meta-Learning

Teaching Networks to Solve Optimization Problems

no code implementations8 Feb 2022 Xinran Liu, Yuzhe Lu, Ali Abbasi, Meiyi Li, Javad Mohammadi, Soheil Kolouri

In addition, we propose two alternative approaches for learning such parametric functions, with and without a solver in the LOOP.

Management

DDU-Net: Dual-Decoder-U-Net for Road Extraction Using High-Resolution Remote Sensing Images

no code implementations18 Jan 2022 Ying Wang, Yuexing Peng, Xinran Liu, Wei Li, George C. Alexandropoulos, Junchuan Yu, Daqing Ge, Wei Xiang

Extracting roads from high-resolution remote sensing images (HRSIs) is vital in a wide variety of applications, such as autonomous driving, path planning, and road navigation.

Autonomous Driving

SLOSH: Set LOcality Sensitive Hashing via Sliced-Wasserstein Embeddings

1 code implementation11 Dec 2021 Yuzhe Lu, Xinran Liu, Andrea Soltoggio, Soheil Kolouri

This paper focuses on non-parametric and data-independent learning from set-structured data using approximate nearest neighbor (ANN) solutions, particularly locality-sensitive hashing.

Retrieval

Deep Scene Text Detection with Connected Component Proposals

no code implementations17 Aug 2017 Fan Jiang, Zhihui Hao, Xinran Liu

The second task aims to output a bundle of character candidates used later to verify the word proposals.

Scene Text Detection Scene Understanding +1

Generating Binary Tags for Fast Medical Image Retrieval Based on Convolutional Nets and Radon Transform

no code implementations16 Apr 2016 Xinran Liu, Hamid. R. Tizhoosh, Jonathan Kofman

The present work introduces a new image retrieval method for medical applications that employs a convolutional neural network (CNN) with recently introduced Radon barcodes.

Content-Based Image Retrieval General Classification +2

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