https://bluuewhale.github.io/tags/graph/Recent content in Graph on Bluue Whalehttps://bluuewhale.github.io/images/profile.jpghttps://bluuewhale.github.io/images/profile.jpgHugo -- 0.152.2en-usSat, 22 Aug 2026 22:21:36 +0900https://bluuewhale.github.io/posts/sparse-matrix-and-csr-en/Wed, 01 Apr 2026 16:23:49 +0900https://bluuewhale.github.io/posts/sparse-matrix-and-csr-en/How CSR (Compressed Sparse Row) represents a sparse matrix with just three arrays, values, column_indices, and row_pointers, and why it speeds up sparse matrix-vector multiplication and graph neighbor lookups.https://bluuewhale.github.io/posts/ego-splitting-framework-en/Fri, 27 Mar 2026 16:45:22 +0900https://bluuewhale.github.io/posts/ego-splitting-framework-en/How the Ego-Splitting Framework solves overlapping clustering with an ordinary non-overlapping clustering algorithm, by splitting each node into one persona per community it belongs to.https://bluuewhale.github.io/posts/community-detection-en/Mon, 23 Mar 2026 23:18:53 +0900https://bluuewhale.github.io/posts/community-detection-en/Where modularity comes from as a way to measure how well-formed a community is, and how the Louvain and Leiden algorithms differ in optimizing it.