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2021 IEEE International Conference on Artificial Intelligence in Engineering and Technology (IICAIET)最新文献

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Generic Expressions for Early Estimation of Performance of Binary Multipliers 二元乘法器性能早期估计的一般表达式
Junqi Huang, T. Kumar, Haider A. F. Almurib
The paper proposes generic expressions for early design phase and accurate estimation of the performance of binary multipliers of $n$-bits in length using eight kinds of traditional adders. The performance of n-bits multipliers using different adders can be quickly assessed in theory by using proposed generic expressions without actual circuits. Performance parameters that are considered are namely the number of stages, gate counts, required area, energy dissipated and worst-case gate level delay. Full adder array is applied to design RCA (Ripple Carry Adder) based multiplier; the number of adder cells at different stages are found. Then, multi-length adder array is designed for multiplier using multi-bits adders; the number of adders with different lengths are analyzed at different stages. Meanwhile, proposed expressions are validated against actual designs; estimated results using proposed expressions show in good agreement with results of actual circuits. Finally, different multipliers are compared in terms of their performances by using proposed expressions. Multipliers using KSA (Kogge-Stone adder) and CSLA (Carry Select adder) require the highest area ($3370 mu m^{2}$ for $n=16$) and consume the highest energy dissipation (2.5E-13J). The RCA based multiplier requires the lowest number of gates, area ($1637.96 mu m^{2}$) and energy dissipation (1.2791E-13J). Also, the worst-case delay for KSA based multiplier and SA (Sklansky adder) based multiplier is lowest (only 60 gate level delays), while that for RCA based multiplier is highest (209 gate level delays).
本文提出了使用8种传统加法器对长度为$n$位的二进制乘法器进行早期设计和性能准确估计的通用表达式。使用不同加法器的n位乘法器的性能可以在理论上通过使用提出的通用表达式而无需实际电路来快速评估。考虑的性能参数是级数、门数、所需面积、能量消耗和最坏情况下的门电平延迟。采用全加法器阵列设计基于RCA (Ripple Carry adder)的乘法器;发现了不同阶段加法器细胞的数量。然后,采用多位加法器设计了多长度加法器阵列;分析了不同长度加法器在不同阶段的数量。同时,根据实际设计对所提出的表达式进行验证;用所提表达式估计的结果与实际电路的结果吻合较好。最后,使用建议的表达式比较了不同乘数器的性能。使用KSA (Kogge-Stone加法器)和CSLA(进位选择加法器)的乘法器需要最大的面积($3370 mu m^{2}$对于$n=16$)并消耗最高的能量消耗(2.5E-13J)。基于RCA的乘法器需要最少的门数、面积($1637.96 mu m^{2}$)和能量消耗(1.2791E-13J)。此外,基于KSA的乘法器和基于SA (Sklansky加法器)的乘法器的最坏情况延迟是最低的(只有60个门级延迟),而基于RCA的乘法器的最坏情况延迟是最高的(209个门级延迟)。
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引用次数: 0
ECG-Derived Respiration for Sleep-Wake Stage Classification 基于脑电图的睡眠-觉醒阶段呼吸分类
R. Sharan
Sleep disorders affect millions of people worldwide. Polysomnography (PSG) is a sleep study that is commonly used to diagnose sleep disorders, such as using sleep staging. However, PSG can be labor intensive, time consuming, expensive, and may not be easily available. Sleep and wake cycles can cause variation in heart rate and respiration which can be estimated using electrocardiogram (ECG), available as wearable sensors. As such, this work studies the use of single-lead ECG for detecting sleep and wake stages, in particular, using the heart rate variability (HRV) and ECG-derived respiration (EDR) signals. Various temporal and spectral descriptors are extracted from the HRV and EDR signals for this purpose. Sequential backward feature selection is employed to select the discriminative features for classification using logistic regression. The proposed method is evaluated on a dataset of more than 85 hours of ECG recordings from 16 subjects in leave-one-subject-out cross-validation. An accuracy of 75% ($text{AUC} =0.83$) is achieved using the EDR features in classifying sleep and wake stages. This increased to an accuracy of 80% ($text{AUC} =0.88$) when combined with HRV features. The proposed method demonstrates potential to be used for screening sleep disorders using ECG.
睡眠障碍影响着全世界数百万人。多导睡眠图(PSG)是一项睡眠研究,通常用于诊断睡眠障碍,如使用睡眠分期。然而,PSG可能是劳动密集型的、耗时的、昂贵的,并且可能不容易获得。睡眠和觉醒周期会导致心率和呼吸的变化,这可以用心电图(ECG)来估计,心电图是可穿戴传感器。因此,这项工作研究了使用单导联心电图检测睡眠和清醒阶段,特别是使用心率变异性(HRV)和心电图衍生的呼吸(EDR)信号。为此,从HRV和EDR信号中提取各种时间和光谱描述符。采用顺序后向特征选择,选择判别特征进行逻辑回归分类。该方法在16名受试者超过85小时的心电图记录数据集上进行了评估,并进行了留一受试者的交叉验证。使用EDR特征对睡眠和觉醒阶段进行分类,准确率达到75% ($text{AUC} =0.83$)。当结合HRV特征时,准确率增加到80% ($text{AUC} =0.88$)。所提出的方法证明了使用ECG筛查睡眠障碍的潜力。
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引用次数: 1
Particle Swarm Optimization for Tuning Power System Stabilizer towards Transient Stability Improvement in Power System Network 面向电网暂态稳定改进的电力系统稳定器调谐粒子群算法
A. Alsakati, C. Vaithilingam, K. Naidu, Gowthamraj Rajendran, J. Alnasseir, A. Jagadeeshwaran
System stability plays a significant role in the development of modern power systems. Power System Stabilizer (PSS) is an effective device often used to provide auxiliary damping to the oscillations by stabilizing the signals. Particle Swarm Optimization (PSO) is a popular and intelligent optimization technique used to solve various optimization problems. In this research work, the transient stability of the two-area four-machine system is improved using PSS1A. PSS1A is a single-input single-band power system stabilizer. The PSS1A parameters are optimized using PSO to enhance the stability and mitigate the oscillations. The simulation results of the relative power angle of Synchronous Generators (SGs) show that the transient stability is significantly improved with Optimized PSS1A (O-PSS1A), and the oscillations are mitigated. The maximum relative power angle of generator 1 and generator 2, with respect to generator 4, reduced by 29.5% and 33.6% respectively with the proposed O-PSS1A. Similarly, a reduction was obtained in settling time of both generator 1 and generator 2 at 4.94 s and 3.66 s compared to the system without PSS which was unstable.
系统稳定性对现代电力系统的发展起着至关重要的作用。电力系统稳定器(PSS)是一种有效的装置,通常用于通过稳定信号来提供辅助阻尼。粒子群优化(PSO)是一种流行的智能优化技术,用于解决各种优化问题。在本研究中,采用PSS1A提高了两区四机系统的暂态稳定性。PSS1A是一款单输入单频段电力系统稳定器。采用粒子群算法对PSS1A参数进行了优化,提高了稳定性,减轻了振荡。对同步发电机(SGs)相对功率角的仿真结果表明,优化后的PSS1A (O-PSS1A)显著提高了同步发电机的暂态稳定性,抑制了同步发电机的振荡。采用O-PSS1A后,发电机1和发电机2相对于发电机4的最大相对功率角分别减小了29.5%和33.6%。同样,与不稳定的无PSS系统相比,发电机1和发电机2的沉降时间分别减少了4.94 s和3.66 s。
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引用次数: 4
An Evaluation of Patch Match-based Copy-Move Forgery Detection (CMFD) on Social Media Images 基于补丁匹配的社交媒体图像复制移动伪造检测(CMFD)评估
Noor Atikah Mat Abir, Nor Bakiah Abd Warif, Nurezayana Zainal
As society is ever more dependent on technology and digital media, the law depends more on digital forensics to find, keep, evaluate, and analyze digital evidence such as digital images and digital documents. The effective image editing application that constantly improves allows the user to change the image material or alter the image effortlessly. Copy-move forgery (CMF) is a very difficult form of forgery to detect. CMF involves copying part of an image and pasting it into one or more regions of the same image. However, the existing Copy-Move Forgery Detection (CMFD) method was only utilized on the existing image dataset, while social media images are on the common media today. In this paper, the PatchMatch-based CMFD method is evaluated with different platforms of social media images: Facebook, WhatsApp, and Twitter. The average performance generated by the PatchMatch-based CMFD method is 91% for the existing CMFD dataset. By replacing the dataset with the social media images dataset, the average performance slightly decreases to 84%.
随着社会越来越依赖于技术和数字媒体,法律越来越依赖于数字取证来查找、保存、评估和分析数字证据,如数字图像和数字文件。不断改进的有效图像编辑应用程序允许用户毫不费力地更改图像材料或更改图像。复制-移动伪造(CMF)是一种非常难以检测的伪造形式。CMF涉及复制图像的一部分并将其粘贴到同一图像的一个或多个区域。然而,现有的复制-移动伪造检测(CMFD)方法仅用于现有的图像数据集,而社交媒体图像在当今的常见媒体上。在本文中,基于patchmatch的CMFD方法在不同的社交媒体图像平台:Facebook, WhatsApp和Twitter上进行了评估。对于现有的CMFD数据集,基于patchmatch的CMFD方法产生的平均性能为91%。通过将数据集替换为社交媒体图像数据集,平均性能略微下降到84%。
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引用次数: 0
Detection of Drowsiness using EEG Probes Sensory Logic Signals Activeness Topology 利用脑电图探测感觉逻辑信号主动拓扑检测睡意
M. Yaakop, S. Yaacob, A. A. Jamil, S. A. Bakar, Mohd. Fauzi Abu Hassan, A. S. Pri
Drowsiness detection has received a great deal of attention, and there are numerous EEG-based techniques for it. The signals are initially filtered, conditioned, and features are abstracted in this method, which focuses on post-processing, to assess the driver's drowsiness status. This method is frequently used, especially when the procedure's output yields odd results, as indicated in the literature. When a subject is in a dynamic position, such as driving when movement cannot be prevented or minimized, EEG data is difficult to get, and EEG signals are prone to artifacts such as muscle and head movement, among other things. Filtering is a software method for removing physical artifacts throughout the pre-and post-processing stages. This technique will take some time to develop and will have an impact on the overall detection time of the system. Algorithms for logic determination are used to determine whether the EEG probe's logic activity is active or inactive and to interpret it as drowsy. Data was collected from five healthy people aged 20 to 27 to put this technique to the test. Participants were instructed to continue driving while EEG data were collected and compared to sensor probe output to determine which wavelength best reflected their weariness. Sensory Logic monitors brain activity by measuring the strength of electrons gathered in a particular cortical location. When the two detection procedures are compared, the PSD approach has higher sensitivity and accuracy for detecting drowsiness, but the Sensor Boolean output falls short in the detection spectrum, as proven later.
睡意检测受到了极大的关注,并且有许多基于脑电图的检测技术。该方法首先对信号进行滤波、调理并提取特征,重点进行后处理,以评估驾驶员的困倦状态。这种方法经常被使用,特别是当过程的输出产生奇怪的结果时,如文献中所示。当受试者处于动态位置时,例如无法阻止或最小化运动的驾驶时,EEG数据难以获得,并且EEG信号容易受到诸如肌肉和头部运动等伪影的影响。过滤是一种软件方法,用于在整个预处理和后处理阶段去除物理工件。这项技术将需要一些时间来开发,并将对系统的总体检测时间产生影响。逻辑判断算法用于确定EEG探针的逻辑活动是活跃还是不活跃,并将其解释为困倦。研究人员从5名年龄在20到27岁之间的健康人群中收集数据,对这项技术进行测试。参与者被指示继续驾驶,同时收集脑电图数据,并将其与传感器探头输出进行比较,以确定哪种波长最能反映他们的疲劳程度。感官逻辑通过测量在大脑皮层特定位置聚集的电子强度来监测大脑活动。对比两种检测方法,PSD方法在检测困倦方面具有更高的灵敏度和准确性,但Sensor Boolean输出在检测光谱上存在不足。
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引用次数: 0
NDM-Finder: A Machine Learning Based Approach for Type-2 (Neonatal) Diabetes Mellitus Prediction NDM-Finder:一种基于机器学习的2型(新生儿)糖尿病预测方法
Mounita Ghosh, Ferdib-Al-Islam
Type 2 diabetes mellitus is a severe disease in which the pancreas' insulin does not act correctly. In the United Kingdom, type 2 diabetes affects around 90% of diabetics. It is a severe ailment that might last a lifetime. Type 2 diabetes has no known cure. However, with the proper diagnosis at an early stage, type 2 diabetes may be managed, and the chance of getting it is reduced. In this research, machine learning has been applied to detect the presence of type 2 diabetes in patients. Exploratory Data Analysis has been performed to uncover the insights of the type 2 diabetes prediction dataset. Several classification algorithms - Support Vector Machine, Random Forest, and XGBoost algorithm were applied, and then feature importance scores were also computed to understand the feature impact on the development of the machine learning model. XGBoost model achieved better execution in different metrics like accuracy (100%), precision (100%), and recall (100%) and outperformed previous works.
2型糖尿病是胰腺胰岛素不能正常发挥作用的一种严重疾病。在英国,约90%的糖尿病患者患有2型糖尿病。这是一种严重的疾病,可能会持续一生。2型糖尿病目前尚无治愈方法。然而,在早期阶段进行正确的诊断,2型糖尿病可能得到控制,并减少患2型糖尿病的机会。在这项研究中,机器学习已被应用于检测患者中是否存在2型糖尿病。探索性数据分析已经进行,以揭示2型糖尿病预测数据集的见解。采用了支持向量机(Support Vector Machine)、随机森林(Random Forest)和XGBoost算法等几种分类算法,然后计算特征重要性分数,了解特征对机器学习模型开发的影响。XGBoost模型在准确率(100%)、精密度(100%)和召回率(100%)等不同指标上实现了更好的执行,并且优于以前的工作。
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引用次数: 1
Herb Classification with Convolutional Neural Network 基于卷积神经网络的草药分类
J. Tan, K. Lim, C. Lee
Herbs are plants with savory or aromatic properties that are widely used for flavoring, food, medicine or perfume. The worldwide use of herbal products for healthcare has increased tremendously over the past decades. The plethora of herb species makes recognizing the herbs remains a challenge. This has spurred great interests among the researchers on pursuing artificial intelligent methods for herb classification. This paper presents a convolutional neural network (CNN) for herb classification. The proposed CNN consists of two convolution layers, two max pooling layers, a fully-connected layer and a softmax layer. The ReLU activation function and dropout regularization are leveraged to improve the performance of the proposed CNN. A dataset with 4067 herb images was collected for the evaluation purposes. The proposed CNN model achieves an accuracy of above 93% despite the fact that some herbs are visually similar.
草药是具有咸味或芳香特性的植物,广泛用于调味、食品、药物或香水。在过去的几十年里,世界范围内对草药产品的使用急剧增加。草本植物种类繁多,使得识别草本植物仍然是一个挑战。这激发了研究人员对草药分类的人工智能方法的极大兴趣。提出了一种用于草药分类的卷积神经网络(CNN)。本文提出的CNN由两个卷积层、两个最大池化层、一个完全连接层和一个softmax层组成。利用ReLU激活函数和dropout正则化来提高所提CNN的性能。为了评估目的,收集了一个包含4067张草药图像的数据集。尽管某些草药在视觉上相似,但所提出的CNN模型的准确率仍达到93%以上。
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引用次数: 1
Optimization of Photovoltaic Energy Harvesting using Artificial Neural Network 基于人工神经网络的光伏能量收集优化
M. K. Tan, Norman Lim, Nurul Izyan Kamaruddin, Kit Guan Lim, Soo Siang Yang, K. Teo
This paper proposes artificial neural network (ANN) based maximum power point tracking (MPPT) controller to maximize the energy harvested by a grid-connected photovoltaic (PV) system under various environmental conditions. Due to the non-linear characteristics, PV system will exhibit multiple peaks when the PV array receives non-uniform irradiance. As such, the conventional perturb and observe (P&O) MPPT controller will be trapped at local maximum power point (MPP). Therefore, this paper aims to integrate ANN into MPPT controller to improve the effectiveness of the MPPT controller in tracking the global MPP. The effectiveness of the proposed method is tested under uniform and non-uniform irradiance conditions, and the performances are compared with the conventional P&O. The simulation results show the proposed method able to track the global MPP even the PV system exhibits multiple peaks under non-uniform condition, whereas the conventional P&O is trapped at local MPP. Thus, the proposed algorithm is able to harvest much energy as compared to the conventional method.
提出了一种基于人工神经网络(ANN)的最大功率点跟踪(MPPT)控制器,使并网光伏系统在各种环境条件下的能量收获最大化。由于光伏阵列的非线性特性,当光伏阵列接收到不均匀的辐照度时,光伏系统会出现多个峰值。因此,传统的扰动和观测(P&O) MPPT控制器将被困在局部最大功率点(MPP)。因此,本文旨在将神经网络集成到MPPT控制器中,以提高MPPT控制器跟踪全局MPP的有效性。在均匀和非均匀辐照条件下测试了该方法的有效性,并与常规P&O进行了性能比较。仿真结果表明,即使光伏系统在非均匀条件下出现多个峰值,该方法也能跟踪全局MPP,而传统的P&O算法被困在局部MPP。因此,与传统方法相比,所提出的算法能够收获更多的能量。
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引用次数: 1
Brain Tumor Classification from MRI Images Using Convolutional Neural Network 基于卷积神经网络的MRI图像脑肿瘤分类
Md. Farhad Hossain, Md. Ariful Islam, Syed Naimatullah Hussain, Debprosad Das, Ruhul Amin, M. Alam
Brain tumor can cause the creation of most aggressive cancer, with a much shorter life expectancy in most advanced stages, unless identified and treated accordingly. In earlier, radiologists have to manually identify the tumors from MRI images or other imaging types. That is both time consuming and threatening to the misclassification that could affect the recovery plan of a patient. Technological innovations and machine learning assist radiologists to detect tumors without invasive procedures. One of the machine learning algorithms that has been shown to be effective at image segmentation and classification is the convolutional neural network (CNN). In this proposed work, a novel CNN architecture was used on a publicly available figshare dataset to identify three brain tumor types. The proposed CNN architecture outperformed most state-of-the-art approaches, achieving a classification accuracy of 96.90 %. Precision, recall, and F1-score are some of the other evaluation metrics used in the study. In addition, the paper includes an in-depth analysis of misclassifications.
脑瘤可导致最具侵袭性的癌症,除非确诊并进行相应的治疗,否则在最晚期的预期寿命要短得多。以前,放射科医生必须手动从MRI图像或其他成像类型中识别肿瘤。这既耗时又有可能导致错误分类,从而影响患者的康复计划。技术创新和机器学习帮助放射科医生在没有侵入性手术的情况下检测肿瘤。卷积神经网络(CNN)是已被证明在图像分割和分类方面有效的机器学习算法之一。在这项工作中,一种新颖的CNN架构被用于一个公开可用的figshare数据集,以识别三种脑肿瘤类型。所提出的CNN架构优于大多数最先进的方法,实现了96.90%的分类准确率。精确度,召回率和f1分数是研究中使用的其他一些评估指标。此外,本文还对错误分类进行了深入的分析。
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引用次数: 1
Sizes of Superpixels and their Effect on Interactive Segmentation 超像素的大小及其对交互式分割的影响
Kok Luong Goh, G. Ng, Muzaffar Hamzah, S. Chai
Semi-automated segmentation, also known as interactive image segmentation, is an algorithm that extracts a region of interest (ROI) from an image based on user input. The said algorithm will be fed the user input information repeatedly until the required region of interest is successfully segmented. Pre-processing steps can be used to speed up the segmentation process while improving the end result. The use of superpixels is one example of such pre-processing step. A superpixel is a group of pixels that share similar characteristics such as texture and colour. Despite the fact that it is used as a pre-processing step in many interactive segmentation algorithms, less studies had been conducted to assess the effects of the size of superpixels required by interactive segmentation algorithms to achieve an optimal result. Therefore, the purpose of this research is to address this issue in order to bridge this research gap. This study will be performed using the Maximum Similarity based region merging (MSRM) with input strokes on selected images from the Berkeleys and Grabcut image data sets, generated by superpixels extractions via energy-driven samples (SEEDS We infer from this research that an image with a minimum of 500 superpixels will aid the interactive segmentation algorithm in producing a decent segmentation result with pixel accuracy of 0.963, F-score of 0.844, and Jaccard index of 0.756. When the superpixels for an image are raised to 10,000, the segmentation results degrade. In conclusion, the size of the superpixels would have an impact on the final segmentation results.
半自动分割,也称为交互式图像分割,是一种基于用户输入从图像中提取感兴趣区域(ROI)的算法。所述算法将反复向用户输入信息馈送,直到所需要的感兴趣区域被成功分割。预处理步骤可以用来加快分割过程,同时改善最终结果。使用超像素就是这种预处理步骤的一个例子。超像素是一组具有相似特征的像素,如纹理和颜色。尽管在许多交互式分割算法中,它被用作预处理步骤,但很少有研究评估交互式分割算法所需的超像素大小对达到最佳结果的影响。因此,本研究的目的是解决这一问题,以弥合这一研究差距。本研究将使用基于最大相似度的区域合并(MSRM)与输入笔画对来自berkeley和Grabcut图像数据集的图像进行合并,这些图像是通过能量驱动样本(SEEDS)提取超像素生成的。我们从本研究中推断,具有至少500个超像素的图像将有助于交互式分割算法产生良好的分割结果,像素精度为0.963,f分数为0.844,Jaccard指数为0.756。当图像的超像素提高到10,000时,分割结果会下降。综上所述,超像素的大小会对最终的分割结果产生影响。
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引用次数: 3
期刊
2021 IEEE International Conference on Artificial Intelligence in Engineering and Technology (IICAIET)
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