Search Results for author: Weichen Wang

Found 8 papers, 0 papers with code

MoodCapture: Depression Detection Using In-the-Wild Smartphone Images

no code implementations25 Feb 2024 Subigya Nepal, Arvind Pillai, Weichen Wang, Tess Griffin, Amanda C. Collins, Michael Heinz, Damien Lekkas, Shayan Mirjafari, Matthew Nemesure, George Price, Nicholas C. Jacobson, Andrew T. Campbell

MoodCapture presents a novel approach that assesses depression based on images automatically captured from the front-facing camera of smartphones as people go about their daily lives.

Depression Detection Feature Importance

Spectral Ranking Inferences based on General Multiway Comparisons

no code implementations5 Aug 2023 Jianqing Fan, Zhipeng Lou, Weichen Wang, Mengxin Yu

This paper studies the performance of the spectral method in the estimation and uncertainty quantification of the unobserved preference scores of compared entities in a general and more realistic setup.

Uncertainty Quantification

Using Mobile Data and Deep Models to Assess Auditory Verbal Hallucinations

no code implementations20 Apr 2023 Shayan Mirjafari, Subigya Nepal, Weichen Wang, Andrew T. Campbell

We then experiment with how predictive these linguistic and contextual cues from the audio diary and mobile sensing data are of an auditory verbal hallucination event.

Hallucination Transfer Learning

Inference on Time Series Nonparametric Conditional Moment Restrictions Using General Sieves

no code implementations31 Dec 2022 Xiaohong Chen, Yuan Liao, Weichen Wang

This paper considers general nonlinear sieve quasi-likelihood ratio (GN-QLR) based inference on expectation functionals of time series data, where the functionals of interest are based on some nonparametric function that satisfy conditional moment restrictions and are learned using multilayer neural networks.

Off-policy evaluation Time Series +1

Ranking Inferences Based on the Top Choice of Multiway Comparisons

no code implementations22 Nov 2022 Jianqing Fan, Zhipeng Lou, Weichen Wang, Mengxin Yu

The estimated distribution is then used to construct simultaneous confidence intervals for the differences in the preference scores and the ranks of individual items.

valid

Global Convergence of Policy Gradient for Linear-Quadratic Mean-Field Control/Game in Continuous Time

no code implementations16 Aug 2020 Weichen Wang, Jiequn Han, Zhuoran Yang, Zhaoran Wang

Reinforcement learning is a powerful tool to learn the optimal policy of possibly multiple agents by interacting with the environment.

Estimation of the Laser Frequency Nosie Spectrum by Continuous Dynamical Decoupling

no code implementations8 May 2020 Manchao Zhang, Yi Xie, Jie Zhang, Weichen Wang, Chunwang Wu, Ting Chen, Wei Wu, Pingxing Chen

Decoherence induced by the laser frequency noise is one of the most important obstacles in the quantum information processing.

Quantum Physics

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