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The deep learning is a popular research direction in machine learning field now. In this paper, the deep learning algorithms are used to recognize the underwater target radiated noises. The deep belief network (DBN) model and the stacked denoising autoencoder (SDAE) model are built respectively. Then the underwater acoustic simulated data of different types of targets as well as different states of...
Individuals utilize online networking sites like Facebook and Twitter to express their interests, opinions or reviews. The users used English language as their medium for communication in earlier days. Despite the fact that content can be written in Unicode characters now, people find it easier to communicate by mixing two or more languages together or lean toward writing their native language in...
Wireless indoor localization is a key technology for the future Internet of things (IoT) paradigm. In this paper, we perform an experimental comparative study of machine learning-based localization schemes, such as k-nearest neighbor (k-NN) and variants of support vector machine (SVM), based on the received signal strength (RSS) measurements of the ambient frequency modulation (FM) and digital video...
An efficient SVM-based hotspot detection method using spectral clustering is proposed in this paper. Firstly, we build graphs to represent both training patterns and test layouts. With spectral clustering, the training patterns and test layouts are adaptively decomposed into a set of small critical patterns. The small critical patterns from the training data sets are used to build the SVM models....
The FRaC anomaly detection algorithm has been previously used to identify anomalous mRNA expression patterns, and has served as the core of an approach that characterizes individual anomalies by identifying dysregulated molecular functions. However, FRaC operates by training supervised models for each feature in a data set. Thus, scaling to substantially larger data sets, such as those reflecting...
This paper presents a method named SoSVMRank, which integrates the social information of a Web document to generate a high-quality summarization. In order to do that, the summarization was formulated as a learning to rank task, in which the order of a sentence or comment was determined by its informative information. The informative information was measured by a set of local and social features in...
Many machine learning algorithms have been introduced to solve different types of problem. Recently, many of these algorithms have been applied to deep architecture model and showed very impressive performance. In general, deep architecture model suffers from over-fitting problem when there is a small number of training data. In this paper, we attempted to remedy this problem in deep architecture...
Analysis and recognition of motion patterns from data acquired by body-worn inertial sensors is an emerging technology in sports. In this paper we propose an effective method for recognition of fencing footwork using a single body-worn accelerometer. We present a challenging dataset consisting of six actions, which were performed by ten persons and repeated ten times by each of them. We propose a...
Fatal accidents occur frequently on low-volume rural roads, and the accident rates are up to 4 times higher at curves. It is thus of paramount importance to perform road inventory of rural roads to develop safety plans. However, most states in U.S. face a challenge to maintain a database for low-volume rural roads due to limited funds for road inventory. In this paper, we propose to significantly...
Deep belief nets (DBNs) have been successfully applied in various fields ranging from image classification and audio recognition to information retrieval. Compared with traditional shallow neural networks, DBNs can use unlabeled data to pretrain a multi-layer generative model, which can better solve the overfitting problem during training neural networks. In this study we represent malware as opcode...
Assessment of the language environment of children in early childhood is a challenging task for both human and machine, and understanding the classroom environment of early learners is an essential step towards facilitating language acquisition and development. This paper explores an approach for intelligent language environment monitoring based on the duration of child-to-child and adult-to-child...
Health promotion and maintenance is becoming increasingly important and depends on three elements: nutrition, exercise, and rest (sleep). In the present study, focusing on sleep, we develop a smartphone-based system based on snore activity detection to investigate day-to-day variations in the sleep state, which does not require dedicated hardware. Here, we analyze the number of training data required...
Recently, deep Convolutional Neural Networks (CNNs) have been used to achieve state-of-the-art performance on a wide range of visual learning tasks. However, when facing some imbalanced learning tasks where the training samples are unevenly distributed among different classes, CNNs tend to produce performance bias toward the majority class, making them not suitable for applications in which the recognition...
Text classification is the most important research issues in the field of data mining. The main idea of using the stemming technique is to reduce the number of features that can be extracted from the document. Furthermore, the stemming aims to enhance the accuracy of the classifier. This paper aims to study the effectiveness of using stemming techniques. The paper will use two popular word extractions:...
Recent research has strongly established the application of Support Vector Machines for Speaker Recognition. In this paper, we present the variations in efficiency of a model for various parameters of nu-SVC for text-dependent speaker-identification. Radial Basis Function (RBF), sigmoid and polynomial kernels have been used for classification. A statistical comparison between all the three kernels...
Many of the state-of-the-art data mining techniques introduce nonlinearities in their models to cope with complex data relationships effectively. Although such techniques are consistently included among the top classification techniques in terms of predictive power, their lack of transparency renders them useless in any domain where comprehensibility is of importance. Rule-extraction algorithms remedy...
In the past decade, there has been a rapid growth in the number of journal, conference and workshop publications from academic research. The growth seems to be accelerated as time goes by. Accordingly, it has become increasingly difficult for researchers to efficiently identify papers related to a given topic, leading to missing important references or even repetitive work. Moreover, even when these...
Classifying sequential data is an important problem in machine learning with applications in time series, sensor streams, and image analysis. The ordered structure of sequential data presents a difficulty for the standard classification models, which has motivated the task of generating features for vector-based discriminative models. Shapelet methods, which have been extensively studied in this topic,...
In this paper, a novel unsupervised method for learning sparse features combined with support vector machines for classification is proposed. The classical SVM method has restrictions on the large-scale applications. This model uses sparse auto encoder, a deep learning algorithm, to improve the performance. Firstly, we use multiple layers of sparse auto encoder to learn the features of the data. Secondly,...
Big data techniques has been applied to power grid for the evaluation and prediction of grid conditions. However, the raw data quality rarely can meet the requirement of precise data analytics since raw data set usually contains samples with missing data to which the common data mining models are sensitive. Though classic interpolation or neural network methods can been used to fill the gaps of missing...
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