Search Results for author: Mingyu Xiao

Found 5 papers, 2 papers with code

Fast Maximum $k$-Plex Algorithms Parameterized by Small Degeneracy Gaps

1 code implementation23 Jun 2023 Zhengren Wang, Yi Zhou, Chunyu Luo, Mingyu Xiao, Jin-Kao Hao

We define a novel parameter of the input instance, $g_k(G)$, the gap between the degeneracy bound and the size of the maximum $k$-plex in the given graph, and present an exact algorithm parameterized by this $g_k(G)$, which has a worst-case running time polynomial in the size of the input graph and exponential in $g_k(G)$.

Community Detection Graph Mining

Facility Location Games Beyond Single-Peakedness: the Entrance Fee Model

no code implementations24 Apr 2022 Mengfan Ma, Mingyu Xiao, Tian Bai, Bakh Khoussainov

Thus, the cost of each agent is determined by both the distance to the facility and the entrance fee of the facility.

Listing Maximal k-Plexes in Large Real-World Graphs

1 code implementation17 Feb 2022 Zhengren Wang, Yi Zhou, Mingyu Xiao, Bakhadyr Khoussainov

Our first contribution is algorithm ListPlex that lists all maximal $k$-plexes in $O^*(\gamma^D)$ time for each constant $k$, where $\gamma$ is a value related to $k$ but strictly smaller than 2, and $D$ is the degeneracy of the graph that is far less than the vertex number $n$ in real-word graphs.

Community Detection

Enhancing Balanced Graph Edge Partition with Effective Local Search

no code implementations17 Dec 2020 Zhenyu Guo, Mingyu Xiao, Yi Zhou, Dongxiang Zhang, Kian-Lee Tan

The graph edge partition problem, which is to split the edge set into multiple balanced parts to minimize the total number of copied vertices, has been widely studied from the view of optimization and algorithms.

Novel Concepts

Object Reachability via Swaps under Strict and Weak Preferences

no code implementations17 Sep 2019 Sen Huang, Mingyu Xiao

We first consider whether an object is reachable for a given agent under a social network, where a trade between two agents is allowed if they are neighbors in the network and no participant has a deficit from the trade.

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