GRaph Algorithms for Parameterized Approximation (GR.A.P.A.) Project








General Information

The GRAPA project is a bilateral French-Japanese research project financed under the PHC Sakura program of JSPS and the French ministry of Foreign Affairs. The research topic of the project is the design of algorithms for NP-hard problems on graphs, using the tools of parameterized complexity and approximation.

General Information about the project:


Project Members

The project is carried out by a French and a Japanese team of researchers. Both teams include several young researchers (doctoral students/post-docs).

French Team

Japanese Team


Publications

The project has resulted in the publication of the following research articles.

  1. Title: Token Sliding on Split Graphs
    Author(s): Rémy Belmonte, Eun Jung Kim, Michael Lampis, Valia Mitsou, Yota Otachi, and Florian Sikora
    Conference: STACS 2019
    Links: draft
  2. Title: Parameterized Complexity of Safe Set
    Author(s): Rémy Belmonte, Tesshu Hanaka, Ioannis Katsikarelis, Michael Lampis, Hirotaka Ono, and Yota Otachi
    Conference: CIAC 2019
    Links: draft
  3. Title: New Results on Directed Edge Dominating Set
    Author(s): Rémy Belmonte, Tesshu Hanaka, Ioannis Katsikarelis, Eun Jung Kim, and Michael Lampis
    Conference: MFCS 2018
    Links: draft
  4. Title: Parameterized Orientable Deletion
    Author(s): Tesshu Hanaka, Ioannis Katsikarelis, Michael Lampis, Yota Otachi, and Florian Sikora
    Conference: SWAT 2018
    Links: draft
  5. Title: How Bad is the Freedom to Flood-It?
    Author(s): Rémy Belmonte, Mehdi Khosravian Ghadikolaei, Masashi Kiyomi, Michael Lampis, and Yota Otachi
    Conference: FUN 2018
    Journal: JGAA (2019)
    Links: online
  6. Title: Parameterized (Approximate) Defective Coloring
    Author(s): Rémy Belmonte, Michael Lampis, and Valia Mitsou
    Conference: STACS 2018
    Links: draft
  7. Title: Defective Coloring on Classes of Perfect Graphs
    Author(s): Rémy Belmonte, Michael Lampis, Valia Mitsou
    Conference: WG 2017
    Links: draft

Workshops

The project's funding has allowed the two teams to organize several research workshops, giving them the opportunity to collaborate. In particular, the following research workshops have been organized as part of the GRAPA project.

  1. Kick-off Meeting. Place: LAMSADE, Universite Paris-Dauphine, Paris, FRANCE. Period: 12-16 Jun 2017. Participant members: ML, VM, EK, FS, IK; YO, RB, TH.
  2. Japan Meeting 1. Place: Kumamoto University, Kumamoto, JAPAN. Period: 20-24 Nov 2017. Participant members: ML, IK, MG; YO, HO, RB, TH.
  3. Japan Meeting 2. Place: Nagoya University, Nagoya, JAPAN. Period: 25-29 Jun 2018. Participant members: ML, EK, FS, VM; YO, HO, RB, TH.
  4. Japan mini-Meeting. Place: University of Electro-Communications, Chofu, JAPAN. Period: 17-21 Dec 2018. Participant members: ML, VM; YO, HO, RB, TH.
  5. Final Meeting. Place: LAMSADE, Universite Paris-Dauphine, Paris, FRANCE. Period: 25-29 Mar 2019. Participant members: ML, VM, EK, FS, IK, MG; YO, HO, RB, TH.