Yixin Cao gave an online talk on the algorithm for recognizing interval graphs with only four LexBFS searches at the Virtual Discrete Math Colloquium

On March 17, 2021, at the Virtual Discrete Math Colloquium, Yixin Cao (操宜新) from Hong Kong Polytechnic University gave an online talk on the recognition algorithm for interval graphs by using 4 graph searchers with an improved presentation compared to the version of Li and Wu. The title of his talk was “Recognizing (unit) interval graphs by zigzag graph searches“.

Se-Young Yun (윤세영) presented his work on online recommendation systems at the Discrete Math Seminar

On March 16, 2021, at the Discrete Math Seminar, Se-Young Yun (윤세영) from KAIST gave a talk on a theoretical analysis of recommendation systems in an online setting, not only proving a lower bound on the regret but also providing an algorithm almost matching these lower bounds. The title of his talk was “Regret in Online Recommendation Systems“.

Kevin Hendrey gave a talk on the theorem on the half-integral Erdős-Posa property of cycles in a graph with edge labelling by multiple abelian groups at the Discrete Math Seminar

On March 2, 2021, Kevin Hendrey from the IBS Discrete Mathematics Group presented his recent result with Pascal Gollin, Ken-ichi Kawarabayashi, O-joung Kwon, and Sang-il Oum on the half-integral Erdős-Posa property of cycles in a graph with edge labelling by multiple abelian groups at the Discrete Math Seminar. The title of his talk was “A unified half-integral Erdős-Pósa theorem for cycles in graphs labelled by multiple abelian groups“.

Welcome IBS Biomedical Mathematical Group (BIMAG/의생명수학그룹), a new group in the Center for Mathematical and Computational Sciences led by its CI, Prof. Jae Kyoung Kim from KAIST

On March 1, 2021, the IBS Biomedical Mathematics Group (BIMAG/의생명수학그룹) is established. It is led by its Chief Investigator, Prof. Jae Kyoung Kim (김재경) from the Department of Mathematical Sciences of KAIST. BIMAG is located on the 3rd floor of the Theory Building of the IBS HQ. As of March 2021, the IBS Center for Mathematical and Computational Sciences has three independent groups; Discrete Mathematics Group (DIMAG), Data Science Group, and Biomedical Mathematics Group (BIMAG).