Search Results for author: Zhengren Wang

Found 3 papers, 3 papers with code

Retrieval-Augmented Generation for AI-Generated Content: A Survey

2 code implementations29 Feb 2024 Penghao Zhao, Hailin Zhang, Qinhan Yu, Zhengren Wang, Yunteng Geng, Fangcheng Fu, Ling Yang, Wentao Zhang, Jie Jiang, Bin Cui

We first classify RAG foundations according to how the retriever augments the generator, distilling the fundamental abstractions of the augmentation methodologies for various retrievers and generators.

Information Retrieval Large Language Model +2

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

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

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