This paper presents RealTIS, a Real-time emergent Topic Identification System for user-generated content on the web via social networking services such as Twitter, Weibo, and Facebook. Without user intervention, our proposed RealTIS system can efficiently collect necessary media posts, construct quality topic summarization from vast sea of data, then automatically identify whether emerging topi...

in this paper we focus on the tracking performance of incremental adaptive LMS algorithm in an adaptive network. For this reason we consider the unknown weight vector to be a time varying sequence. First we analyze the performance of network in tracking a time varying weight vector and then we explain the estimation of Rayleigh fading channel through a random walk model. Closed form relations a...

Teleseismic Rayleigh waves, Ms > 7.0, in the period range 14 to 28 s, are well recorded by the short-period Benioff array within southern California. Multiple arrivals that hinder the determination of local phase velocity curves are detected by narrow band-pass filtering. The records are then windowed on distinct, coherent peaks that move uniformly across the array. Four to seven stations are i...

The underground muon flux produced by primary cosmic rays with a median rigidity of 1.5 x 10 V has been monitored to search for periodic and transient rate variations. The detector has operated at an average rate of 4.47 Hz for most of the 1.2 yr interval starting 1978 Jan 1. A peak with relative amplitude (3.8 ± 0.9) x10 -4 is observed in the Fourier transform of data at the sidereal 0.9 frequ...