کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
534098 | 870216 | 2012 | 6 صفحه PDF | دانلود رایگان |
This paper proposes two efficient kernels for comparing acyclic, directed graphs. The first kernel counts the number of common paths and allows for weighing according to path-length and/or according to the vertices contained in each particular path. The second kernel counts the number of paths in common minors of the graphs involved and allows for length- and vertex-weighting too. Both kernels have algorithmic complexity that is cubic in the size of the vertex-set. The performance of the algorithms is concisely demonstrated using synthetic and real data.
► Graph kernel of complexity O(∣V∣3) that evaluates all common paths in DAG’s with common vertex set V.
► Graph kernel of complexity O(∣V∣3) that evaluates all paths of all common graph-minors in DAG’s with common vertex set V.
► Kernels allow for weighing the paths according to the vertices included.
► Performance is demonstrated on synthetic data.
Journal: Pattern Recognition Letters - Volume 33, Issue 16, 1 December 2012, Pages 2239–2244