PhD Defense by Xinshi Chen

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Event Details
  • Date/Time:
    • Wednesday April 13, 2022
      11:00 am - 1:00 pm
  • Location: REMOTE
  • Phone:
  • URL: BlueJeans
  • Email:
  • Fee(s):
    N/A
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Summaries

Summary Sentence: Duality Between Deep Learning And Algorithm Design

Full Summary: No summary paragraph submitted.

Title: Duality Between Deep Learning And Algorithm Design

 

Date: 04/13/2022

Time: 11:00 am EST

Location (BlueJeans meeting link): https://bluejeans.com/788150008/3007

 

Xinshi Chen

Machine Learning PhD Student

School of Mathematics
Georgia Institute of Technology

 

Committee

1 Dr. Le Song (Advisor)

2 Dr. Koltchinskii Vladimir (Advisor)

3 Dr. Guanghui Lan

4 Dr. Xiuwei Zhang

5 Dr. Molei Tao

 

Abstract

 

Deep learning is a data-driven method, whereas conventional algorithm design is a knowledge-driven method. Based on their connections and complementary features, this thesis introduces new methods to combine the merits of both and, in turn, improve both. Specifically: 

 

  1.      Algorithm inspired deep learning model 

The development of deep neural networks is hindered by their lack of interpretability and the need for very large training sets. To eliminate these issues, this thesis introduces the use of algorithms as modeling priors to integrate specialized knowledge of domain experts into deep learning models. From both the empirical and theoretical perspective, this thesis explains how such algorithm inspired deep learning models can achieve improved interpretability and sample efficiency. 

 

  1.      Deep learning based algorithm design 

In conventional algorithm design, domain experts will first develop a model to describe the mechanism behind it and then establish a mathematical algorithm to find the solution. Notwithstanding its interpretability, this model-based method is inferior in terms of its limited effective range and accuracy. This is mostly due to the simplifying assumptions of the models which often deviate from real-world problems. To address these issues, this thesis investigates the potential of deep learning based methods for discovering data-driven algorithms that adapt better to the interested problem distribution, from both the empirical and theoretical perspectives. 

 

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Phd Defense
Status
  • Created By: Tatianna Richardson
  • Workflow Status: Published
  • Created On: Apr 4, 2022 - 9:33am
  • Last Updated: Apr 4, 2022 - 9:33am