Search Results for author: Zhecheng Wang

Found 9 papers, 4 papers with code

SkyScript: A Large and Semantically Diverse Vision-Language Dataset for Remote Sensing

1 code implementation20 Dec 2023 Zhecheng Wang, Rajanie Prabha, Tianyuan Huang, Jiajun Wu, Ram Rajagopal

Remote sensing imagery, despite its broad applications in helping achieve Sustainable Development Goals and tackle climate change, has not yet benefited from the recent advancements of versatile, task-agnostic vision language models (VLMs).

Attribute Cross-Modal Retrieval +3

Learning Lens Blur Fields

no code implementations17 Oct 2023 Esther Y. H. Lin, Zhecheng Wang, Rebecca Lin, Daniel Miau, Florian Kainz, Jiawen Chen, Xuaner Cecilia Zhang, David B. Lindell, Kiriakos N. Kutulakos

Optical blur is an inherent property of any lens system and is challenging to model in modern cameras because of their complex optical elements.

Detecting Neighborhood Gentrification at Scale via Street-level Visual Data

no code implementations4 Jan 2023 Tianyuan Huang, Timothy Dai, Zhecheng Wang, Hesu Yoon, Hao Sheng, Andrew Y. Ng, Ram Rajagopal, Jackelyn Hwang

Neighborhood gentrification plays a significant role in shaping the social and economic well-being of both individuals and communities at large.

valid

AugNet: End-to-End Unsupervised Visual Representation Learning with Image Augmentation

1 code implementation11 Jun 2021 Mingxiang Chen, Zhanguo Chang, Haonan Lu, Bitao Yang, Zhuang Li, Liufang Guo, Zhecheng Wang

In our evaluations, the method outperforms all the state-of-the-art image retrieval algorithms on some out-of-domain image datasets.

Clustering Image Augmentation +4

Learning Neighborhood Representation from Multi-Modal Multi-Graph: Image, Text, Mobility Graph and Beyond

no code implementations6 May 2021 Tianyuan Huang, Zhecheng Wang, Hao Sheng, Andrew Y. Ng, Ram Rajagopal

Recent urbanization has coincided with the enrichment of geotagged data, such as street view and point-of-interest (POI).

Image Generation With Neural Cellular Automatas

1 code implementation10 Oct 2020 Mingxiang Chen, Zhecheng Wang

In this paper, we propose a novel approach to generate images (or other artworks) by using neural cellular automatas (NCAs).

Image Generation Image Restoration

Predicting Geographic Information with Neural Cellular Automata

1 code implementation20 Sep 2020 Mingxiang Chen, Qichang Chen, Lei Gao, Yilin Chen, Zhecheng Wang

This paper presents a novel framework using neural cellular automata (NCA) to regenerate and predict geographic information.

Urban2Vec: Incorporating Street View Imagery and POIs for Multi-Modal Urban Neighborhood Embedding

no code implementations29 Jan 2020 Zhecheng Wang, Haoyuan Li, Ram Rajagopal

Understanding intrinsic patterns and predicting spatiotemporal characteristics of cities require a comprehensive representation of urban neighborhoods.

Document Embedding Semantic Similarity +1

Machine Learning for AC Optimal Power Flow

no code implementations19 Oct 2019 Neel Guha, Zhecheng Wang, Matt Wytock, Arun Majumdar

We explore machine learning methods for AC Optimal Powerflow (ACOPF) - the task of optimizing power generation in a transmission network according while respecting physical and engineering constraints.

BIG-bench Machine Learning

Cannot find the paper you are looking for? You can Submit a new open access paper.