Search Results for author: Ningshan Zhang

Found 7 papers, 0 papers with code

Online Learning with Dependent Stochastic Feedback Graphs

no code implementations ICML 2020 Corinna Cortes, Giulia Desalvo, Claudio Gentile, Mehryar Mohri, Ningshan Zhang

A general framework for online learning with partial information is one where feedback graphs specify which losses can be observed by the learner.

Adaptive Region-Based Active Learning

no code implementations ICML 2020 Corinna Cortes, Giulia Desalvo, Claudio Gentile, Mehryar Mohri, Ningshan Zhang

We present a new active learning algorithm that adaptively partitions the input space into a finite number of regions, and subsequently seeks a distinct predictor for each region, both phases actively requesting labels.

Active Learning

Learning GANs and Ensembles Using Discrepancy

no code implementations NeurIPS 2019 Ben Adlam, Corinna Cortes, Mehryar Mohri, Ningshan Zhang

Generative adversarial networks (GANs) generate data based on minimizing a divergence between two distributions.

Domain Adaptation

Fitting a deeply-nested hierarchical model to a large book review dataset using a moment-based estimator

no code implementations1 Jun 2018 Ningshan Zhang, Kyle Schmaus, Patrick O. Perry

The main challenge in deploying this model is computational: the data sizes are large, and fitting the model at scale using off-the-shelf maximum likelihood procedures is prohibitive.

Recommendation Systems

Algorithms and Theory for Multiple-Source Adaptation

no code implementations NeurIPS 2018 Judy Hoffman, Mehryar Mohri, Ningshan Zhang

This work includes a number of novel contributions for the multiple-source adaptation problem.

Multiple-Source Adaptation for Regression Problems

no code implementations14 Nov 2017 Judy Hoffman, Mehryar Mohri, Ningshan Zhang

We present a detailed theoretical analysis of the problem of multiple-source adaptation in the general stochastic scenario, extending known results that assume a single target labeling function.

regression Sentiment Analysis

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