Isometric Multi-Manifolds Learning

Isometric feature mapping (Isomap) is a promising manifold learning method. However, Isomap fails to work on data which distribute on clusters in a single manifold or manifolds. Many works have been done on extending Isomap to multi-manifolds learning. In this paper, we proposed a new multi-manifolds learning algorithm (M-Isomap) with the help of a general procedure. The new algorithm preserves intramanifold geodesics and multiple inter-manifolds edges faithfully. Compared with previous approaches, this algorithm can isometrically learn data distribute on several manifolds. Some revisions have been made on the original multi-cluster manifold learning algorithm called D-C Isomap [24] such that the revised D-C Isomap can learn multi-manifolds data. Finally, the features and effectiveness of the proposed multi-manifolds learning algorithms are demonstrated and compared through experiments.