In this letter, generalized gamma distribution (GCD) is introduced as a new statistical model of spectral distribution to be applied to the likelihood ratio test performed in voice activity detection (VAD). A gradient-based on-line algorithm is proposed to estimate the parameters of GCD according to the maximum likelihood criterion. Experimental results show that the VAD algorithm implemented b...

RDBMS is the heart for both OLTP and OLAP types of applications. For both types of applications thousands of queries expressed in terms of SQL are executed on daily basis. All the commercial DBMS engines capture various attributes in system tables about these executed queries. These queries need to conform to best practices and need to be tuned to ensure optimal performance. While we use checkl...

In this work we present a robust object detection system for static cameras, which is suitable for real-time applications. Thus, the system has to cope with changes of environmental conditions, which is realized by adaptive on-line learning a scene specific classifier. In particular, we apply the ideas of grid-based classification, where each image patch corresponds to one classifier. Thus, the...

today, the internet is the significant tool of online shopping in all around the world. online transaction systems make shopper possible to make payment for services or products utilizing the internet. the current paper purpose is to focus on the elements that can affect online repurchase intentions. in the current paper we utilized survey questionnaire to gather 102 in malaysia from those that...

introduction: evoked potentials arisen by stimulating the brain can be utilized as a communication tool  between humans and machines. most brain-computer interface (bci) systems use the p300 component,  which is an evoked potential. in this paper, we evaluate the use of the hidden markov model (hmm) for  detection of p300.  materials and methods: the wavelet transforms, wavelet-enhanced indepen...

although many scholars had proposed lots research results about online shopping, they are quite vague and hard for enterprisers to practice it. hence, this research observes the online store policies, services, functions, and activities among 17 online shopping platforms in taiwan, china, and hong kong. and, this research (1) finds online stores assessment items by literature review; (2) establ...

molecular detection techniques are believed to be key tools for both prevention and treatment follow up of brucellosis within live stock and human beings. consequently rapid, reliable, easy to perform and automated systems for brucella detection are urgently needed to allow early diagnosis and adequate antibiotic therapy in time. brucellosis is a worldwide re-emerging zoonosis causing high econ...

predicting different behaviors in computer networks is the subject of many data mining researches. providing a balanced intrusion detection system (ids) that directly addresses the trade-off between the ability to detect new attack types and providing low false detection rate is a fundamental challenge. many of the proposed methods perform well in one of the two aspects, and concentrate on a su...

Online detection of hydrodynamics of gas-solid fluidized bed was characterized using pressure fluctuations by cross recurrence plot (CRP) and cross recurrence quantification analysis (CRQA). Experiments were conducted in a lab scale fluidized bed of various particle sizes 150 μm, 280 μm and 490 μm at different gas velocities. Firstly, pattern changes of cross recurrence plot were discussed and ...