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cs.DS2026
Independence-Number Parameterized Space Complexity for Directed Connectivity Certificate
Ho-Lin Chen, Tsun Ming Cheung, Peng-Ting Lin +1
We study the space complexity of computing a sparse subgraph of a directed graph that certifies connectivity in the streaming and distributed models. Formally, for a directed graph…
cs.DS2026
Efficient Streaming Algorithms for Two-Dimensional Congruence Testing and Congruence Hashing
Yen-Cheng Chang, Tsun Ming Cheung, Meng-Tsung Tsai +1
Geometric congruence asks whether two point multisets are identical up to translation and rotation, while congruence hashing seeks compact encodings that support efficient congruen…