• 제목/요약/키워드: Deep neural networks

검색결과 852건 처리시간 0.036초

Neural Networks-Based Method for Electrocardiogram Classification

  • Maksym Kovalchuk;Viktoriia Kharchenko;Andrii Yavorskyi;Igor Bieda;Taras Panchenko
    • International Journal of Computer Science & Network Security
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    • 제23권9호
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    • pp.186-191
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    • 2023
  • Neural Networks are widely used for huge variety of tasks solution. Machine Learning methods are used also for signal and time series analysis, including electrocardiograms. Contemporary wearable devices, both medical and non-medical type like smart watch, allow to gather the data in real time uninterruptedly. This allows us to transfer these data for analysis or make an analysis on the device, and thus provide preliminary diagnosis, or at least fix some serious deviations. Different methods are being used for this kind of analysis, ranging from medical-oriented using distinctive features of the signal to machine learning and deep learning approaches. Here we will demonstrate a neural network-based approach to this task by building an ensemble of 1D CNN classifiers and a final classifier of selection using logistic regression, random forest or support vector machine, and make the conclusions of the comparison with other approaches.

Network Traffic Classification Based on Deep Learning

  • Li, Junwei;Pan, Zhisong
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • 제14권11호
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    • pp.4246-4267
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    • 2020
  • As the network goes deep into all aspects of people's lives, the number and the complexity of network traffic is increasing, and traffic classification becomes more and more important. How to classify them effectively is an important prerequisite for network management and planning, and ensuring network security. With the continuous development of deep learning, more and more traffic classification begins to use it as the main method, which achieves better results than traditional classification methods. In this paper, we provide a comprehensive review of network traffic classification based on deep learning. Firstly, we introduce the research background and progress of network traffic classification. Then, we summarize and compare traffic classification based on deep learning such as stack autoencoder, one-dimensional convolution neural network, two-dimensional convolution neural network, three-dimensional convolution neural network, long short-term memory network and Deep Belief Networks. In addition, we compare traffic classification based on deep learning with other methods such as based on port number, deep packets detection and machine learning. Finally, the future research directions of network traffic classification based on deep learning are prospected.

심층신경망 기반의 객체 검출 방식을 활용한 모바일 화면의 자동 프로그래밍에 관한 연구 (Automatic Mobile Screen Translation Using Object Detection Approach Based on Deep Neural Networks)

  • 윤영선;박지수;정진만;은성배;차신;소선섭
    • 한국멀티미디어학회논문지
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    • 제21권11호
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    • pp.1305-1316
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    • 2018
  • Graphical user interface(GUI) has a very important role to interact with software users. However, designing and coding of GUI are tedious and pain taking processes. In many studies, the researchers are trying to convert GUI elements or widgets to code or describe formally their structures by help of domain knowledge of stochastic methods. In this paper, we propose the GUI elements detection approach based on object detection strategy using deep neural networks(DNN). Object detection with DNN is the approach that integrates localization and classification techniques. From the experimental result, if we selected the appropriate object detection model, the results can be used for automatic code generation from the sketch or capture images. The successful GUI elements detection can describe the objects as hierarchical structures of elements and transform their information to appropriate code by object description translator that will be studied at future.

Pyramidal Deep Neural Networks for the Accurate Segmentation and Counting of Cells in Microscopy Data

  • Vununu, Caleb;Kang, Kyung-Won;Lee, Suk-Hwan;Kwon, Ki-Ryong
    • 한국멀티미디어학회논문지
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    • 제22권3호
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    • pp.335-348
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    • 2019
  • Cell segmentation and counting represent one of the most important tasks required in order to provide an exhaustive understanding of biological images. Conventional features suffer the lack of spatial consistency by causing the joining of the cells and, thus, complicating the cell counting task. We propose, in this work, a cascade of networks that take as inputs different versions of the original image. After constructing a Gaussian pyramid representation of the microscopy data, the inputs of different size and spatial resolution are given to a cascade of deep convolutional autoencoders whose task is to reconstruct the segmentation mask. The coarse masks obtained from the different networks are summed up in order to provide the final mask. The principal and main contribution of this work is to propose a novel method for the cell counting. Unlike the majority of the methods that use the obtained segmentation mask as the prior information for counting, we propose to utilize the hidden latent representations, often called the high-level features, as the inputs of a neural network based regressor. While the segmentation part of our method performs as good as the conventional deep learning methods, the proposed cell counting approach outperforms the state-of-the-art methods.

인공신경망의 연결압축에 대한 연구 (A Study on Compression of Connections in Deep Artificial Neural Networks)

  • 안희준
    • 한국산업정보학회논문지
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    • 제22권5호
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    • pp.17-24
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    • 2017
  • 최근 딥러닝, 즉 거대 또는 깊은 인공신경망을 사용한 기술이 놀라운 성능을 보이고 있고, 점차로 그 네트워크의 규모가 커지고 있다. 하지만, 신경망 크기의 증가는 계산양의 증가로 이어져서 회로의 복잡성, 가격, 발열, 실시간성 제약 등의 문제를 야기한다. 또한, 신경망 연결에는 많은 중복성이 존재한다, 본 연구에서는 이 중복성을 효과적으로 제거하여 이용하여 원 신경망의 성능과 원하는 범위안의 차이를 보이면서, 네트워크 연결의 수를 줄이는 방법을 제안하고 실험하였다. 특히, 재학습에 의하여 성능을 향상시키고, 각 계층별 차이를 고려하기 위하여 계층별 오류율을 할당하여 원하는 성능을 보장할 수 있는 간단한 방법을 제안하였다. 대표적인 영상인식 신경망구조인 FCN (전연결) 구조와 CNN (컨벌루션 신경망) 구조에서 대하여 실험한 결과 약 1/10 정도의 연결만으로도 원 신경망과 유사한 성능을 보일 수 있음을 확인하였다.

Deep Learning Method for Identification and Selection of Relevant Features

  • Vejendla Lakshman
    • International Journal of Computer Science & Network Security
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    • 제24권5호
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    • pp.212-216
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    • 2024
  • Feature Selection have turned into the main point of investigations particularly in bioinformatics where there are numerous applications. Deep learning technique is a useful asset to choose features, anyway not all calculations are on an equivalent balance with regards to selection of relevant features. To be sure, numerous techniques have been proposed to select multiple features using deep learning techniques. Because of the deep learning, neural systems have profited a gigantic top recovery in the previous couple of years. Anyway neural systems are blackbox models and not many endeavors have been made so as to examine the fundamental procedure. In this proposed work a new calculations so as to do feature selection with deep learning systems is introduced. To evaluate our outcomes, we create relapse and grouping issues which enable us to think about every calculation on various fronts: exhibitions, calculation time and limitations. The outcomes acquired are truly encouraging since we figure out how to accomplish our objective by outperforming irregular backwoods exhibitions for each situation. The results prove that the proposed method exhibits better performance than the traditional methods.

Multimodal Context Embedding for Scene Graph Generation

  • Jung, Gayoung;Kim, Incheol
    • Journal of Information Processing Systems
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    • 제16권6호
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    • pp.1250-1260
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    • 2020
  • This study proposes a novel deep neural network model that can accurately detect objects and their relationships in an image and represent them as a scene graph. The proposed model utilizes several multimodal features, including linguistic features and visual context features, to accurately detect objects and relationships. In addition, in the proposed model, context features are embedded using graph neural networks to depict the dependencies between two related objects in the context feature vector. This study demonstrates the effectiveness of the proposed model through comparative experiments using the Visual Genome benchmark dataset.

AnoVid: 비디오 주석을 위한 심층 신경망 기반의 도구 (AnoVid: A Deep Neural Network-based Tool for Video Annotation)

  • 황지수;김인철
    • 한국멀티미디어학회논문지
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    • 제23권8호
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    • pp.986-1005
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    • 2020
  • In this paper, we propose AnoVid, an automated video annotation tool based on deep neural networks, that automatically generates various meta data for each scene or shot in a long drama video containing rich elements. To this end, a novel meta data schema for drama video is designed. Based on this schema, the AnoVid video annotation tool has a total of six deep neural network models for object detection, place recognition, time zone recognition, person recognition, activity detection, and description generation. Using these models, the AnoVid can generate rich video annotation data. In addition, AnoVid provides not only the ability to automatically generate a JSON-type video annotation data file, but also provides various visualization facilities to check the video content analysis results. Through experiments using a real drama video, "Misaeing", we show the practical effectiveness and performance of the proposed video annotation tool, AnoVid.

Application of artificial neural networks (ANNs) and linear regressions (LR) to predict the deflection of concrete deep beams

  • Mohammadhassani, Mohammad;Nezamabadi-pour, Hossein;Jumaat, Mohd Zamin;Jameel, Mohammed;Arumugam, Arul M.S.
    • Computers and Concrete
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    • 제11권3호
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    • pp.237-252
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    • 2013
  • This paper presents the application of artificial neural network (ANN) to predict deep beam deflection using experimental data from eight high-strength-self-compacting-concrete (HSSCC) deep beams. The optimized network architecture was ten input parameters, two hidden layers, and one output. The feed forward back propagation neural network of ten and four neurons in first and second hidden layers using TRAINLM training function predicted highly accurate and more precise load-deflection diagrams compared to classical linear regression (LR). The ANN's MSE values are 40 times smaller than the LR's. The test data R value from ANN is 0.9931; thus indicating a high confidence level.

3차원 쉐어렛 변환과 심층 잔류 신경망을 이용한 무참조 스포츠 비디오 화질 평가 (No-Reference Sports Video-Quality Assessment Using 3D Shearlet Transform and Deep Residual Neural Network)

  • 이기용;신승수;김형국
    • 한국멀티미디어학회논문지
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    • 제23권12호
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    • pp.1447-1453
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    • 2020
  • In this paper, we propose a method for no-reference quality assessment of sports videos using 3D shearlet transform and deep residual neural networks. In the proposed method, 3D shearlet transform-based spatiotemporal features are extracted from the overlapped video blocks and applied to logistic regression concatenated with a deep residual neural network based on a conditional video block-wise constraint to learn the spatiotemporal correlation and predict the quality score. Our evaluation reveals that the proposed method predicts the video quality with higher accuracy than the conventional no-reference video quality assessment methods.