Search Results for author: W. Nick Street

Found 10 papers, 4 papers with code

HintNet: Hierarchical Knowledge Transfer Networks for Traffic Accident Forecasting on Heterogeneous Spatio-Temporal Data

1 code implementation7 Mar 2022 Bang An, Amin Vahedian, Xun Zhou, W. Nick Street, Yanhua Li

However, this problem is challenging due to the spatial heterogeneity of the environment and the sparsity of accidents in space and time.

Management Transfer Learning

Optimizing Warfarin Dosing using Deep Reinforcement Learning

1 code implementation7 Feb 2022 Sadjad Anzabi Zadeh, W. Nick Street, Barrett W. Thomas

We tested the robustness of our dosing protocol on a second PK/PD model and showed that its performance is comparable to the set of baseline protocols.

reinforcement-learning Reinforcement Learning (RL)

Personalized Cardiovascular Disease Risk Mitigation via Longitudinal Inverse Classification

no code implementations16 Nov 2020 Michael T. Lash, W. Nick Street

Cardiovascular disease (CVD) is a serious illness affecting millions world-wide and is the leading cause of death in the US.

Classification Decision Making +1

Predicting Urban Dispersal Events: A Two-Stage Framework through Deep Survival Analysis on Mobility Data

no code implementations3 May 2019 Amin Vahedian, Xun Zhou, Ling Tong, W. Nick Street, Yanhua Li

We propose a two-stage framework (DILSA), where a deep learning model combined with survival analysis is developed to predict the probability of a dispersal event and its demand volume.

Survival Analysis

Prophit: Causal inverse classification for multiple continuously valued treatment policies

no code implementations14 Feb 2018 Michael T. Lash, Qihang Lin, W. Nick Street

Inverse classification uses an induced classifier as a queryable oracle to guide test instances towards a preferred posterior class label.

Classification Gaussian Processes +1

Learning Rich Geographical Representations: Predicting Colorectal Cancer Survival in the State of Iowa

no code implementations15 Aug 2017 Michael T. Lash, Yuqi Sun, Xun Zhou, Charles F. Lynch, W. Nick Street

Specifically, we compare model performance using a newly defined metric -- area between the curves (ABC) -- to assess (a) whether survival curves can be reasonably predicted for colorectal cancer patients in the state of Iowa, (b) whether geographical features improve predictive performance, and (c) whether a simple binary representation or richer, spectral clustering-based representation perform better.

Clustering

Realistic risk-mitigating recommendations via inverse classification

1 code implementation13 Nov 2016 Michael T. Lash, W. Nick Street

Use of such past probabilities ties historical behavior to the present, allowing for more information to be taken into account when making initial probability estimates and subsequently performing inverse classification.

Classification General Classification

Generalized Inverse Classification

no code implementations5 Oct 2016 Michael T. Lash, Qihang Lin, W. Nick Street, Jennifer G. Robinson, Jeffrey Ohlmann

To solve such a problem, we propose three real-valued heuristic-based methods and two sensitivity analysis-based comparison methods, each of which is evaluated on two freely available real-world datasets.

Classification General Classification

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