9/5 Bayesian optimization: AutoML and hyperparameter tuning (최승진/정보과학회 인공지능소사이어티)

작성자
kaistsoftware
작성일
2019-09-04 10:10
조회
297
Bayesian optimization: AutoML and hyperparameter tuning

  • 강사 : 최승진 (정보과학회 인공지능소사이어티)
  • 일시 : 2019. 9. 5 (목) 17:00~19:00
We often encounter a problem in practice where the objective to be optimized is a black-box function, i.e., a closed-form expression of which is not given but expensive evaluations at query points are available. Exemplary problems are hyperparameter optimization for deep neural networks and automated machine learning (autoML) where data preprocessing, algorithm selection are chosen automatically to output the best performance. Bayesian optimization provides a principled and efficient approach to the black-box optimization, in terms of the number of function evaluations required. Bayesian optimization places a prior over the objective function and combines it with the likelihood to calculate the posterior function. This permits determining where next to sample from the objective function, which is done by the acquisition function maximization, balancing exploration and exploitation. In this talk, I introduce an underlying idea of Bayesian optimization, including Gaussian process regression and various acquisition functions such as PI, EI, and GP-UCB. If time permitted, I will discuss a few recent issues on Bayesian optimization that you might ask.
전체 24
번호 제목 작성자 작성일 추천 조회
공지사항
2019년 가을학기 세미나 일정 안내
kaistsoftware | 2019.08.08 | 추천 0 | 조회 870
kaistsoftware 2019.08.08 0 870
23
10/10 Large-scale Inference Using Nearest Neighbors (노영균/한양대 컴퓨터소프트웨어학부)
kaistsoftware | 2019.09.30 | 추천 0 | 조회 131
kaistsoftware 2019.09.30 0 131
22
9/26 한국에서 기술기업이 성장하는 길(이호진/Skelter Labs)
kaistsoftware | 2019.09.23 | 추천 0 | 조회 150
kaistsoftware 2019.09.23 0 150
21
9/19 클라우드 서비스 기술의 현황과 미래 (윤석찬/Amazon Web Services)
kaistsoftware | 2019.09.10 | 추천 0 | 조회 237
kaistsoftware 2019.09.10 0 237
20
9/5 Bayesian optimization: AutoML and hyperparameter tuning (최승진/정보과학회 인공지능소사이어티)
kaistsoftware | 2019.09.04 | 추천 0 | 조회 297
kaistsoftware 2019.09.04 0 297
19
5/2 Deep Learning in Computer Vision (임종우/한양대 컴퓨터소프트웨어학부)
kaistsoftware | 2019.06.30 | 추천 0 | 조회 618
kaistsoftware 2019.06.30 0 618
18
4/25 핀테크는 금융산업에 혁신을 가져올 수 있을까? (서래호/미래에셋대우 혁신추진단)
kaistsoftware | 2019.06.30 | 추천 0 | 조회 482
kaistsoftware 2019.06.30 0 482
17
4/4 대화형 AI 플랫폼의 현황과 발전 방향 (조영환/AIRI)
kaistsoftware | 2019.06.30 | 추천 0 | 조회 394
kaistsoftware 2019.06.30 0 394
16
3/28 AutoML: 아이낳는 AI (김성진/LG전자 인공지능연구소)
kaistsoftware | 2019.06.30 | 추천 0 | 조회 633
kaistsoftware 2019.06.30 0 633
15
3/21 차량용 소프트웨어 진화와 미래 (이승용/현대모비스)
kaistsoftware | 2019.06.30 | 추천 0 | 조회 301
kaistsoftware 2019.06.30 0 301
14
3/14 카카오 AI 기반 대화 처리 소개 (김병학/(주)카카오 AI Lab)
kaistsoftware | 2019.06.30 | 추천 0 | 조회 379
kaistsoftware 2019.06.30 0 379