Stream clustering is a fundamental problem in many streaming data analysis applications. Comparing to classical batchmode clustering, there are two key challenges in stream clustering: (i) Given that input data are changing continuously, how to incrementally update clustering results efficiently? (ii) Given that clusters continuously evolve with the evolution of data, how to capture the cluster...

We report the discovery of PSR J1847−0130, a radio pulsar with a 6.7-s spin period, in the Parkes multibeam survey of the Galactic plane. The slowdown rate for the pulsar, 1.3 × 10 s s, is high and implies a surface dipole magnetic field strength of 9.4 × 10 G. This inferred dipolar magnetic field strength is the highest by far among all known radio pulsars and over twice the “quantum critical ...

Clustering algorithm based on grid and density has many excellent features. But for the highdimensional data stream, the number of grids will be increased sharply as the space dimensionality grows. To solve the defect, we propose GDH-Stream, a clustering method based on the effective dimension and grid density for high-dimensional data stream, which consists of an online component and an offlin...

Essential to understanding the overall structure of river networks is a knowledge of their detailed architecture. Here we explore the presence of randomness in river network structure and the details of its consequences. We first show that an averaged view of network architecture is provided by a proposed self-similarity statement about the scaling of drainage density, a local measure of stream...

New parallel algorithms for parsing arithmetic expressions on mesh-connected, shuffle-connected, cube-connected, and cube-connected cycles models of parallel computation are presented. On the meshconnected computer, the algorithm requires n processors and O(&) time; on the other models, n processors and O(log2 n ) time are required. Index Terns-Arithmetic expressions, parallel processing, parsi...

Kabani river is a 7 order stream with a basin area of 1647 km. There are 4 sixth order and11 fifth order sub-basins. This analysis is mainly confined to 11 fifth order sub basins. Morphometric indices like stream ordering, bifurcation ratio, stream length, drainage density, stream frequency, form factor, elongation ratio, circularity ratio, constant of channel maintenance, asymmetry factor, sin...