Search Results for author: Yiqun Xie

Found 12 papers, 4 papers with code

When are Foundation Models Effective? Understanding the Suitability for Pixel-Level Classification Using Multispectral Imagery

no code implementations17 Apr 2024 Yiqun Xie, Zhihao Wang, Weiye Chen, Zhili Li, Xiaowei Jia, Yanhua Li, Ruichen Wang, Kangyang Chai, Ruohan Li, Sergii Skakun

This work aims to enhance the understanding of the status and suitability of foundation models for pixel-level classification using multispectral imagery at moderate resolution, through comparisons with traditional machine learning (ML) and regular-size deep learning models.

Self-Supervised Learning

Referee-Meta-Learning for Fast Adaptation of Locational Fairness

no code implementations20 Feb 2024 Weiye Chen, Yiqun Xie, Xiaowei Jia, Erhu He, Han Bao, Bang An, Xun Zhou

When dealing with data from distinct locations, machine learning algorithms tend to demonstrate an implicit preference of some locations over the others, which constitutes biases that sabotage the spatial fairness of the algorithm.

Decision Making Fairness +1

Nature-Guided Cognitive Evolution for Predicting Dissolved Oxygen Concentrations in North Temperate Lakes

no code implementations15 Feb 2024 Runlong Yu, Robert Ladwig, Xiang Xu, Peijun Zhu, Paul C. Hanson, Yiqun Xie, Xiaowei Jia

Using these simulated labels, we implement a multi-population cognitive evolutionary search, where models, mirroring natural organisms, adaptively evolve to select relevant feature interactions within populations for different lake types and tasks.

SimFair: Physics-Guided Fairness-Aware Learning with Simulation Models

no code implementations27 Jan 2024 Zhihao Wang, Yiqun Xie, Zhili Li, Xiaowei Jia, Zhe Jiang, Aolin Jia, Shuo Xu

Fairness-awareness has emerged as an essential building block for the responsible use of artificial intelligence in real applications.

Fairness

FREE: The Foundational Semantic Recognition for Modeling Environmental Ecosystems

no code implementations17 Nov 2023 Shiyuan Luo, Juntong Ni, Shengyu Chen, Runlong Yu, Yiqun Xie, Licheng Liu, Zhenong Jin, Huaxiu Yao, Xiaowei Jia

This raises a fundamental question in advancing the modeling of environmental ecosystems: how to build a general framework for modeling the complex relationships amongst various environmental data over space and time?

Future prediction

Rethinking Data Distillation: Do Not Overlook Calibration

1 code implementation ICCV 2023 Dongyao Zhu, Bowen Lei, Jie Zhang, Yanbo Fang, Ruqi Zhang, Yiqun Xie, Dongkuan Xu

Neural networks trained on distilled data often produce over-confident output and require correction by calibration methods.

STORM-GAN: Spatio-Temporal Meta-GAN for Cross-City Estimation of Human Mobility Responses to COVID-19

no code implementations20 Jan 2023 Han Bao, Xun Zhou, Yiqun Xie, Yanhua Li, Xiaowei Jia

While deep learning approaches outperform conventional estimation techniques on tasks with abundant training data, the continuously evolving pandemic poses a significant challenge to solving this problem due to data nonstationarity, limited observations, and complex social contexts.

Generative Adversarial Network

Eco-PiNN: A Physics-informed Neural Network for Eco-toll Estimation

1 code implementation13 Jan 2023 Yan Li, Mingzhou Yang, Matthew Eagon, Majid Farhadloo, Yiqun Xie, William F. Northrop, Shashi Shekhar

The eco-toll estimation problem quantifies the expected environmental cost (e. g., energy consumption, exhaust emissions) for a vehicle to travel along a path.

Task-Adaptive Meta-Learning Framework for Advancing Spatial Generalizability

1 code implementation10 Dec 2022 Zhexiong Liu, Licheng Liu, Yiqun Xie, Zhenong Jin, Xiaowei Jia

One major advantage of our proposed method is that it improves the model adaptation to a large number of heterogeneous tasks.

Meta-Learning

Modeling Reservoir Release Using Pseudo-Prospective Learning and Physical Simulations to Predict Water Temperature

no code implementations11 Feb 2022 Xiaowei Jia, Shengyu Chen, Yiqun Xie, HaoYu Yang, Alison Appling, Samantha Oliver, Zhe Jiang

However, the information of released water flow is often not available for many reservoirs, which makes it difficult for data-driven models to capture the impact to downstream river segments.

Physical Simulations

Statistically-Robust Clustering Techniques for Mapping Spatial Hotspots: A Survey

2 code implementations22 Mar 2021 Yiqun Xie, Shashi Shekhar, Yan Li

Mapping of spatial hotspots, i. e., regions with significantly higher rates of generating cases of certain events (e. g., disease or crime cases), is an important task in diverse societal domains, including public health, public safety, transportation, agriculture, environmental science, etc.

Clustering

Towards Spatial Variability Aware Deep Neural Networks (SVANN): A Summary of Results

no code implementations17 Nov 2020 Jayant Gupta, Yiqun Xie, Shashi Shekhar

Spatial variability has been observed in many geo-phenomena including climatic zones, USDA plant hardiness zones, and terrestrial habitat types (e. g., forest, grasslands, wetlands, and deserts).

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