We present two new k-dimensional data structures, called the PKD-tree and the PKD-tree, respectively. They are explored for indexing combined text and point data, and evaluated experimentally for orthogonal range search (for 2 ≤ k ≤ 100 and n up to 1,000,000) using synthetic data and real data. We compared the range search performance of the PKD-tree with the PKD-tree, the k-d tree, the Pyramid...

2 Binary search trees 2 2.1 Definition of a binary search tree . . . . . . . . . . . . . . . . . . 2 2.2 Profile. Discrete martingale . . . . . . . . . . . . . . . . . . . . . 3 2.3 Embedding in continuous time. Yule tree . . . . . . . . . . . . . . 4 2.4 Martingale connection Yule tree binary search tree . . . . . . . . 5 2.5 Asymptotics . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Land cover is one of basic data layers in geographic information system for physical planning and environmentalmonitoring. Digital image classification is generally performed to produce land cover maps from remote sensing data,particularly for large areas. In the present study the multispectral image from IRS LISS-III image along with ancillary datasuch as vegetation indices, principal componen...