no code implementations • 15 Apr 2024 • Wenwen Li, Chia-Yu Hsu, Sizhe Wang, Peter Kedron
We then discuss the factors that may cause the lack of R&R in GeoAI research, with an emphasis on (1) the selection and use of training data; (2) the uncertainty that resides in the GeoAI model design, training, deployment, and inference processes; and more importantly (3) the inherent spatial heterogeneity of geospatial data and processes.
no code implementations • 15 Mar 2024 • Wenwen Li, Hu Shao, Sizhe Wang, Xiran Zhou, Sheng Wu
Big earth science data offers the scientific community great opportunities.
no code implementations • 16 Jan 2024 • Wenwen Li, Chia-Yu Hsu, Sizhe Wang, Yezhou Yang, Hyunho Lee, Anna Liljedahl, Chandi Witharana, Yili Yang, Brendan M. Rogers, Samantha T. Arundel, Matthew B. Jones, Kenton McHenry, Patricia Solis
To evaluate the performance of large AI vision models, especially Meta's Segment Anything Model (SAM), we implemented different instance segmentation pipelines that minimize the changes to SAM to leverage its power as a foundation model.
no code implementations • 19 Dec 2023 • Wenwen Li
GeoAI, or geospatial artificial intelligence, is an exciting new area that leverages artificial intelligence (AI), geospatial big data, and massive computing power to solve problems with high automation and intelligence.
no code implementations • 29 Sep 2023 • Alessandro Fontanella, Wenwen Li, Grant Mair, Antreas Antoniou, Eleanor Platt, Paul Armitage, Emanuele Trucco, Joanna Wardlaw, Amos Storkey
DL methods can be designed for AIS lesion detection on CT using the vast quantities of routinely-collected CT brain scan data.
no code implementations • 26 Sep 2023 • Alessandro Fontanella, Wenwen Li, Grant Mair, Antreas Antoniou, Eleanor Platt, Chloe Martin, Paul Armitage, Emanuele Trucco, Joanna Wardlaw, Amos Storkey
Despite the large amount of brain CT data generated in clinical practice, the availability of CT datasets for deep learning (DL) research is currently limited.
no code implementations • 25 Sep 2023 • Wenwen Li, Hyunho Lee, Sizhe Wang, Chia-Yu Hsu, Samantha T. Arundel
Vision foundation models are a new frontier in Geospatial Artificial Intelligence (GeoAI), an interdisciplinary research area that applies and extends AI for geospatial problem solving and geographic knowledge discovery, because of their potential to enable powerful image analysis by learning and extracting important image features from vast amounts of geospatial data.
no code implementations • 8 Jun 2023 • Wenwen Li, Chia-Yu Hsu, Sizhe Wang, Chandi Witharana, Anna Liljedahl
This paper introduces a real-time GeoAI workflow for large-scale image analysis and the segmentation of Arctic permafrost features at a fine-granularity.
no code implementations • 17 May 2023 • Yuanyuan Tian, Wenwen Li, Sizhe Wang, Zhining Gu
Initiated by the University Consortium of Geographic Information Science (UCGIS), GIS&T Body of Knowledge (BoK) is a community-driven endeavor to define, develop, and document geospatial topics related to geographic information science and technologies (GIS&T).
1 code implementation • 27 Mar 2023 • Alessandro Fontanella, Antreas Antoniou, Wenwen Li, Joanna Wardlaw, Grant Mair, Emanuele Trucco, Amos Storkey
We investigate the best way to generate the saliency maps employed in our architecture and propose a way to obtain them from adversarially generated counterfactual images.
1 code implementation • 16 Mar 2023 • Chia-Yu Hsu, Wenwen Li
This paper compares popular saliency map generation techniques and their strengths and weaknesses in interpreting GeoAI and deep learning models' reasoning behaviors, particularly when applied to geospatial analysis and image processing tasks.
no code implementations • 11 Nov 2022 • Yuanyuan Tian, Wenwen Li
Knowledge graph technology is considered a powerful and semantically enabled solution to link entities, allowing users to derive new knowledge by reasoning data according to various types of reasoning rules.
no code implementations • 22 Jul 2022 • Jiacheng Yin, Wenwen Li, Xidong Wang, Xiaozhou Ye, Ye Ouyang
With the development of 4G/5G, the rapid growth of traffic has caused a large number of cell indicators to exceed the warning threshold, and network quality has deteriorated.
no code implementations • 27 Jun 2022 • Shirly Stephen, Wenwen Li, Torsten Hahmann
This paper proposes a framework for representing and reasoning causality between geographic events by introducing the notion of Geo-Situation.
no code implementations • 27 Jul 2021 • Bowei Li, Ruohan Chen, Yuqing Xue, Ricky Wang, Wenwen Li, Matthew Guzdial
Procedural content generation via machine learning (PCGML) is the process of procedurally generating game content using models trained on existing game content.
no code implementations • 6 Mar 2021 • Chia-Yu Hsu, Wenwen Li
This paper reports a new solution of leveraging temporal classification to support weakly supervised object detection (WSOD).
no code implementations • 27 Aug 2019 • Yingjie Hu, Wenwen Li, Dawn Wright, Orhun Aydin, Daniel Wilson, Omar Maher, Mansour Raad
Artificial Intelligence (AI) has received tremendous attention from academia, industry, and the general public in recent years.
no code implementations • 26 Mar 2019 • Shuo Zhou, Wenwen Li, Christopher R. Cox, Haiping Lu
We use public data to construct 13 transfer learning tasks in brain decoding, including three interesting multi-source transfer tasks.
no code implementations • 4 Dec 2018 • Wenwen Li, Jian Lou, Shuo Zhou, Haiping Lu
While functional magnetic resonance imaging (fMRI) is important for healthcare/neuroscience applications, it is challenging to classify or interpret due to its multi-dimensional structure, high dimensionality, and small number of samples available.
no code implementations • 26 May 2018 • Xiran Zhou, Wenwen Li, Samantha T. Arundel, Jun Liu
To facilitate establishing an automatic approach for accessing the needed map, this paper reports our investigation into using deep learning techniques to recognize seven types of map, including topographic map, terrain map, physical map, urban scene map, the National Map, 3D map, nighttime map, orthophoto map, and land cover classification map.