Search Results for author: Zhengyi Zhou

Found 6 papers, 0 papers with code

General-Purpose Multi-Modal OOD Detection Framework

no code implementations24 Jul 2023 Viet Duong, Qiong Wu, Zhengyi Zhou, Eric Zavesky, Jiahe Chen, Xiangzhou Liu, Wen-Ling Hsu, Huajie Shao

To reach this goal, we propose a general-purpose weakly-supervised OOD detection framework, called WOOD, that combines a binary classifier and a contrastive learning component to reap the benefits of both.

Contrastive Learning Out of Distribution (OOD) Detection

Towards Algorithmic Fairness in Space-Time: Filling in Black Holes

no code implementations8 Nov 2022 Cheryl Flynn, Aritra Guha, Subhabrata Majumdar, Divesh Srivastava, Zhengyi Zhou

New technologies and the availability of geospatial data have drawn attention to spatio-temporal biases present in society.

Active Learning Fairness +1

Information Extraction with Character-level Neural Networks and Free Noisy Supervision

no code implementations13 Dec 2016 Philipp Meerkamp, Zhengyi Zhou

We present an architecture for information extraction from text that augments an existing parser with a character-level neural network.

Quantifying Urban Traffic Anomalies

no code implementations30 Sep 2016 Zhengyi Zhou, Philipp Meerkamp, Chris Volinsky

Detecting and quantifying anomalies in urban traffic is critical for real-time alerting or re-routing in the short run and urban planning in the long run.

Predicting Ambulance Demand: Challenges and Methods

no code implementations16 Jun 2016 Zhengyi Zhou

Predicting ambulance demand accurately at a fine resolution in time and space (e. g., every hour and 1 km$^2$) is critical for staff / fleet management and dynamic deployment.

Density Estimation Management

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