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168 results for “Statistical Methods”
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Research ArticleOpen accessIn the abstractHEURISTIC DISCRETIZATION METHOD FOR BAYESIAN NETWORKSMariana D.C. Lima, Silvia M. Nassar, Pedro Ivo R.B.G. Rodrigues et al.Bayesian Network (BN) is a classification technique widely used in Artificial Intelligence. Its structure is a Direct Acyclic Graph (DAG) used to model the association of categorical variables. However, in cases where the variables are numerical, a previous discretization is necessary. Discretization methods are usually based on a statistical approach using the data distribution, such as division by quartiles. In … …Journal of Computer Science, Vol. 10, Issue 5 · 18 Jan 2014 · 7,059 accessesView PDFCite
Research ArticleOpen accessIn the abstractSPEECH/MUSIC CLASSIFICATION USING WAVELET BASED FEATURE EXTRACTION TECHNIQUESThiruvengatanadhan Ramalingam, P. DhanalakshmiAudio classification serves as the fundamental step towards the rapid growth in audio data volume. Due to the increasing size of the multimedia sources speech and music classification is one of the most important issues for multimedia information retrieval. In this work a speech/music discrimination system is developed which utilizes the Discrete Wavelet Transform (DWT) as the acoustic feature. Multi … …Journal of Computer Science, Vol. 10, Issue 1 · 8 Nov 2013 · 6,846 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffect of Industrial Pollution on the Spatial Variation of Surface Water QualityIslam Mir Sujaul, Mohammed Amjed Hossain, Mohamad Ali Nasly, Md Abdus SobahanSurface water quality deterioration is the impact of anthropogenic activities at the study areas due to rapid industrialization. The study was done to know the spatial variation of the water quality of the Tunggak River and surrounding area because of industrial activities. In-situ parameters and ex-situ data of chemical, bio-chemical parameters and heavy metals were collected monthly to fulfill the … …American Journal of Environmental Sciences, Vol. 9, Issue 2 · 25 Mar 2013 · 8,175 accessesView PDFCite
Research ArticleOpen accessIn the abstractAssay for Rapid Screening of Phytochemicals as Antimicrobial AgentsGhosh Saurav, Indranil Mukherjee, Ashoke Ranjan Thakur, Shaon Ray ChaudhuriThe present study aims to develop a rapid method for antibiotic sensitivity detection and screening of natural products for antimicrobial activity. The dimension of WBC in blood film was found to get altered when seeded with bacteria and monitored under light microscope. The shrinkage was prevented in response to antibiotic treatment and validated using statistical analysis (two sample one tailed … …American Journal of Biochemistry and Biotechnology, Vol. 9, Issue 1 · 18 Mar 2013 · 8,307 accessesView PDFCite
Research ArticleOpen accessIn the abstractParameter Estimation and Determination of Sample Size in Logistic RegressionAdeleke Kazeem Adedayo, Dawud Adebayo AgunbiadeThe determination of Sample-Size is often an important step in planning a statistical study and it is usually a difficult task. Among the important hurdles to be surpassed, one must obtain an estimate of one or more error variances and specify an effective sample size of importance. The study was carried out to check for the estimation of parameter and … …Journal of Mathematics and Statistics, Vol. 8, Issue 4 · 4 Feb 2013 · 6,918 accessesView PDFCite
Research ArticleOpen accessIn the abstractEstimation and Analysis of Output Gap: An Application of Structural Vector Autoregression and Hodrick-Prescott-FmethodsSaeed Dehghan Khavari, Seyed Hossein MirjaliliIn this study we examined output gap in the Iranian economy. The main question of the study is that how much is seasonal output gap in Iranian Economy and which factor affects gap variation. The other question is that whether using HP-F as a statistical based method for estimating output gap, provide different result than using SVAR as theory based … …American Journal of Economics and Business Administration, Vol. 4, Issue 3 · 27 Aug 2012 · 7,899 accessesView PDFCite
Research ArticleOpen accessIn the abstractComparative Evaluation of Adaptive Filter and Neuro-Fuzzy Filter in Artifacts Removal From Electroencephalogram SignalPaulchamy Balaiah, IlavennilaProblem statement: This study presents an effective method for removing mixed artifacts (EOG-Electro-ocular gram, ECG-Electrocardiogram, EMG-Electromyogram) from the EEG-Electroencephalogram records. The noise sources increases the difficulty in analyzing the EEG and obtaining clinical information. EEG signals are multidimensional, non-stationary (i.e., statistical properties are not invariant in time), time domain biological signals, which are not reproducible. It is supposed to contain … …American Journal of Applied Sciences, Vol. 9, Issue 10 · 15 Aug 2012 · 7,090 accessesView PDFCite
Research ArticleOpen accessIn the abstractSteel Plates Faults Diagnosis with Data Mining ModelsMahmoud Fakhr, Alaa M. ElsayadProblem statement: Over the last two decades, Fault Diagnosis (FD) has a major importance to enhance the quality of manufacturing and to lessen the cost of product testing. Actually, quick and correct FD system helps to keep away from product quality problems and facilitates precautionary maintenance. FD may be considered as a pattern recognition problem. It has been gaining more … …Journal of Computer Science, Vol. 8, Issue 4 · 31 Jan 2012 · 11,383 accessesView PDFCite
Research ArticleOpen accessIn the abstractEvaluating the Performance of Accounting Information Systems in Jordanian Private HospitalsMajed AlsharayriProblem statement: This study aimed at identifying the evaluation of accounting information systems performance used in the Jordanian private hospitals. Approach: In order to achieve the objectives of the study, a questionnaire has designed and developed for the purpose of data collection. Results: It was distributed to the individual’s sample which are (15) hospitals, (SPSS) software program was used in … …Journal of Social Sciences, Vol. 8, Issue 1 · 25 Jan 2012 · 8,539 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Note on the Analysis of Time Cost by Difference of Transaction System in the Agricultural Wholesale Market of KoreaYoon-Doo Kim, Seok YoonProblem statement: The purpose of this study is to prove objectively that the market-wholesaler system, introduced to agricultural wholesale market in Korea for the first time, has better operational efficiency than the existing auction system. From an analytical viewpoint, we estimated the time value of two transaction systems at the agricultural wholesale market using the calculation methods of the congestion … …American Journal of Agricultural and Biological Sciences, Vol. 7, Issue 1 · 23 Jan 2012 · 7,706 accessesView PDFCite