1 code implementation • 23 Oct 2023 • Zekun Li, Wenxuan Zhou, Yao-Yi Chiang, Muhao Chen
This paper introduces GeoLM, a geospatially grounded language model that enhances the understanding of geo-entities in natural language.
no code implementations • 29 Jun 2023 • Jina Kim, Zekun Li, Yijun Lin, Min Namgung, Leeje Jang, Yao-Yi Chiang
mapKurator empowers automated extraction, post-processing, and linkage of text labels from large numbers of large-dimension historical map scans.
no code implementations • 28 Jun 2023 • Arash Hajisafi, Haowen Lin, Sina Shaham, Haoji Hu, Maria Despoina Siampou, Yao-Yi Chiang, Cyrus Shahabi
Forecasting the number of visits to Points-of-Interest (POI) in an urban area is critical for planning and decision-making for various application domains, from urban planning and transportation management to public health and social studies.
no code implementations • 23 Apr 2023 • Xiaozhe Yin, Masoud Fallah-Shorshani, Rob McConnell, Scott Fruin, Yao-Yi Chiang, Meredith Franklin
For both the simulated and traffic noise datasets, the overall performance of the prediction intervals from QXGBoost were better than other models based on coverage width-based criterion.
no code implementations • 20 Jan 2023 • Haoji Hu, Haowen Lin, Yao-Yi Chiang
Human mobility clustering is an important problem for understanding human mobility behaviors (e. g., work and school commutes).
no code implementations • 21 Oct 2022 • Zekun Li, Jina Kim, Yao-Yi Chiang, Muhao Chen
Characterizing geo-entities is integral to various application domains, such as geo-intelligence and map comprehension, while a key challenge is to capture the spatial-varying context of an entity.
1 code implementation • 10 Feb 2022 • Johannes H. Uhl, Stefan Leyk, Yao-Yi Chiang, Craig A. Knoblock
Transportation infrastructure, such as road or railroad networks, represent a fundamental component of our civilization.
no code implementations • 12 Dec 2021 • Zekun Li, Runyu Guan, Qianmu Yu, Yao-Yi Chiang, Craig A. Knoblock
We show that the state-of-the-art text detection models (e. g., PSENet) can benefit from the synthetic historical maps and achieve significant improvement for historical map text detection.
no code implementations • 10 Dec 2021 • Weiwei Duan, Yao-Yi Chiang, Stefan Leyk, Johannes H. Uhl, Craig A. Knoblock
Recent semi-supervised clustering approaches can reduce manual labeling but still require annotations for all object categories in the image.
no code implementations • 10 Dec 2021 • Yijun Lin, Yao-Yi Chiang, Meredith Franklin, Sandrah P. Eckel, José Luis Ambite
In addition to a feature selection module and a spatiotemporal learning module, DeepLATTE contains an autocorrelation-guided semi-supervised learning strategy to enforce both local autocorrelation patterns and global autocorrelation trends of the predictions in the learned spatiotemporal embedding space to be consistent with the observed data, overcoming the limitation of sparse and unevenly distributed observations.
no code implementations • 10 Dec 2021 • Weiwei Duan, Yao-Yi Chiang, Stefan Leyk, Johannes H. Uhl, Craig A. Knoblock
Thousands of scanned historical topographic maps contain valuable information covering long periods of time, such as how the hydrography of a region has changed over time.
1 code implementation • 3 Dec 2021 • Zekun Li, Yao-Yi Chiang, Sasan Tavakkol, Basel Shbita, Johannes H. Uhl, Stefan Leyk, Craig A. Knoblock
This paper presents an end-to-end approach to address the real-world problem of finding and indexing historical map images.
Optical Character Recognition Optical Character Recognition (OCR)
no code implementations • 14 Oct 2021 • Yijun Lin, Yao-Yi Chiang
Large network logs, recording multivariate time series generated from heterogeneous devices and sensors in a network, can often reveal important information about abnormal activities, such as network intrusions and device malfunctions.
no code implementations • 7 Oct 2020 • Sasan Tavakkol, Feng Han, Brandon Mayer, Mark Phillips, Cyrus Shahabi, Yao-Yi Chiang, Raimondas Kiveris
We introduce the modular and scalable design of Kartta Labs, an open source, open data, and scalable system for virtually reconstructing cities from historical maps and photos.
no code implementations • 3 Mar 2020 • Mingxuan Yue, Yaguang Li, Haoze Yang, Ritesh Ahuja, Yao-Yi Chiang, Cyrus Shahabi
Identifying mobility behaviors in rich trajectory data is of great economic and social interest to various applications including urban planning, marketing and intelligence.