An Efficient Index-Based Method for Skyline Path Query over Temporal Graphs with Labels

Linlin Ding, Gang Zhang, Ji Ma, Mo Li

Abstract: Recently, with the proliferation of path query-based applications, extensive research has concentrated on the path query problem. Existing works either focus on the path query over temporal graphs or skyline path query over static graphs, ignoring the temporal information. Meanwhile, edge-labeled temporal graphs are widespread in our daily life, such as traffic networks labeled with “expressway” or “provincial road”. In this paper, we define a novel skyline path query over temporal graphs with labels. To handle this problem, we first devise an index named MP-index, divided into two phrases of MP nodes search and Mout set construction. Based on this index, we propose an efficient TMP algorithm to provide the skyline path query over temporal graphs with labels. Finally, extensive experiments show the effectiveness and efficiency of our proposed algorithm.