# Seminars & Colloquia

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구글 Calendar나 iPhone 등에서 구독하면 세미나 시작 전에 알림을 받을 수 있습니다.

In a constantly changing world, animals must account for fluctuations and changes in their environment when making decisions. They must make use of recent information, and appropriately discount older, irrelevant information. But to do so they need to learn the rate at which the environment changes. Recent experimental studies show that humans and other animals can indeed do so.  However it it is unclear what underlying computations they use to achieve this. Developing normative models of evidence accumulation is a first step in quantifying such decision-making processes. While optimal, these algorithms are computationally intensive. To address this problem we developed an approximation of the normative inference process, and show how this approximate computation can be implemented in neural circuits. In the second part of the talk I will discuss evidence accumulation on networks where private information can be shared between neighboring nodes.

Host: 김재경     English     2017-09-01 16:42:17

2017년 제6회 정오의 수학산책

일시: 11월 3일(금) 12:00 - 13:15

장소: KAIST 수리과학과 E6-1 3435호

강연자: 오병권 교수 (서울대학교)

내용: TBA

Host: 이지운 교수     To be announced     2017-09-18 10:58:54

Hyperbolic dynamical systems are nowadays fairly well understood from the topological and ergodic point of view. In this talk, we discuss some recent and ongoing works on the dynamics beyond hyperbolicity. In the ﬁrst part, we will provide a characterization of robustly shadowable chain transitive sets for C1-vector ﬁelds on compact smooth manifolds. In the second part, we extend the concepts of topological stability and pseudo-orbit tracing property from homeomorphisms to Borel measures, and prove that every expansive measure with the pseudo-orbit tracing property is topologically stable. This represents a measurable version of the stability theorem by Peter Walters. The ﬁrst part is joint work with M. Reza, and the second part is joint work with C.A. Morales.

Host: 곽시종     English     2017-09-01 16:43:49

제 7회 CMC 정오의 수학산책

일시: 11월 24일(금) 12:00 - 13:15

장소: KAIST 자연과학동 E6-1 3435호

강연자: 채동호 교수 (중앙대학교)

제목: Navier-Stokes 방정식

내용: TBA

Host: 이지운 교수     Contact: 김현수 (8545)     To be announced     2017-09-14 10:26:46

제8회 CMC 정오의 수학산책

일시: 12월 1일(금) 12:00 - 13:15

장소: KAIST 자연과학동 E6-1 3435호

강연자: 김재광 교수 (KAIST)

제목: 빅데이터시대의 통계학

내용: TBA

참가: https://goo.gl/forms/lJdtJG2HGToWdYMO2  를 통해 사전등록

Host: 이지운 교수     Contact: 김현수 (8545)     To be announced     2017-09-14 14:01:03

We introduce various generalized versions of the classical Waring's problem which asks whether there exists a positive integer $N(d)$ such that every positive integer can be written as the sum of $N(d)$ $d$th powers of positive integers. In particular we talk about Waring's problem for rational functions in one variable.

Host: 임미경     English     2017-09-01 16:45:12