Cartoons are an important part of our entertainment culture. Though drawing a cartoon is not for everyone, creating it using an arrangement of basic geometric primitives that approximates that character is a fairly frequent technique in art. The key motivation behind this technique is that human bodies - as well as cartoon figures - can be split down into various basic geometric primitives. Numerous tutorials are available that demonstrate how to draw figures using an appropriate arrangement of fundamental shapes, thus assisting us in creating cartoon characters. This technique is very beneficial for children in terms of teaching them how to draw cartoons. In this paper, we develop a tool - shape2toon - that aims to automate this approach by utilizing a generative adversarial network which combines geometric primitives (i.e. circles) and generate a cartoon figure (i.e. Mickey Mouse) depending on the given approximation. For this purpose, we created a dataset of geometrically represented cartoon characters. We apply an image-to-image translation technique on our dataset and report the results in this paper. The experimental results show that our system can generate cartoon characters from input layout of geometric shapes. In addition, we demonstrate a web-based tool as a practical implication of our work.
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The cover is the face of a book and is a point of attraction for the readers. Designing book covers is an essential task in the publishing industry. One of the main challenges in creating a book cover is representing the theme of the book's content in a single image. In this research, we explore ways to produce a book cover using artificial intelligence based on the fact that there exists a relationship between the summary of the book and its cover. Our key motivation is the application of text-to-image synthesis methods to generate images from given text or captions. We explore several existing text-to-image conversion techniques for this purpose and propose an approach to exploit these frameworks for producing book covers from provided summaries. We construct a dataset of English books that contains a large number of samples of summaries of existing books and their cover images. In this paper, we describe our approach to collecting, organizing, and pre-processing the dataset to use it for training models. We apply different text-to-image synthesis techniques to generate book covers from the summary and exhibit the results in this paper.
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Semi-supervised learning (SSL) has made significant strides in the field of remote sensing. Finding a large number of labeled datasets for SSL methods is uncommon, and manually labeling datasets is expensive and time-consuming. Furthermore, accurately identifying remote sensing satellite images is more complicated than it is for conventional images. Class-imbalanced datasets are another prevalent phenomenon, and models trained on these become biased towards the majority classes. This becomes a critical issue with an SSL model's subpar performance. We aim to address the issue of labeling unlabeled data and also solve the model bias problem due to imbalanced datasets while achieving better accuracy. To accomplish this, we create "artificial" labels and train a model to have reasonable accuracy. We iteratively redistribute the classes through resampling using a distribution alignment technique. We use a variety of class imbalanced satellite image datasets: EuroSAT, UCM, and WHU-RS19. On UCM balanced dataset, our method outperforms previous methods MSMatch and FixMatch by 1.21% and 0.6%, respectively. For imbalanced EuroSAT, our method outperforms MSMatch and FixMatch by 1.08% and 1%, respectively. Our approach significantly lessens the requirement for labeled data, consistently outperforms alternative approaches, and resolves the issue of model bias caused by class imbalance in datasets.
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The task of locating and classifying different types of vehicles has become a vital element in numerous applications of automation and intelligent systems ranging from traffic surveillance to vehicle identification and many more. In recent times, Deep Learning models have been dominating the field of vehicle detection. Yet, Bangladeshi vehicle detection has remained a relatively unexplored area. One of the main goals of vehicle detection is its real-time application, where `You Only Look Once' (YOLO) models have proven to be the most effective architecture. In this work, intending to find the best-suited YOLO architecture for fast and accurate vehicle detection from traffic images in Bangladesh, we have conducted a performance analysis of different variants of the YOLO-based architectures such as YOLOV3, YOLOV5s, and YOLOV5x. The models were trained on a dataset containing 7390 images belonging to 21 types of vehicles comprising samples from the DhakaAI dataset, the Poribohon-BD dataset, and our self-collected images. After thorough quantitative and qualitative analysis, we found the YOLOV5x variant to be the best-suited model, performing better than YOLOv3 and YOLOv5s models respectively by 7 & 4 percent in mAP, and 12 & 8.5 percent in terms of Accuracy.
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Handwriting Recognition has been a field of great interest in the Artificial Intelligence domain. Due to its broad use cases in real life, research has been conducted widely on it. Prominent work has been done in this field focusing mainly on Latin characters. However, the domain of Arabic handwritten character recognition is still relatively unexplored. The inherent cursive nature of the Arabic characters and variations in writing styles across individuals makes the task even more challenging. We identified some probable reasons behind this and proposed a lightweight Convolutional Neural Network-based architecture for recognizing Arabic characters and digits. The proposed pipeline consists of a total of 18 layers containing four layers each for convolution, pooling, batch normalization, dropout, and finally one Global average pooling and a Dense layer. Furthermore, we thoroughly investigated the different choices of hyperparameters such as the choice of the optimizer, kernel initializer, activation function, etc. Evaluating the proposed architecture on the publicly available 'Arabic Handwritten Character Dataset (AHCD)' and 'Modified Arabic handwritten digits Database (MadBase)' datasets, the proposed model respectively achieved an accuracy of 96.93% and 99.35% which is comparable to the state-of-the-art and makes it a suitable solution for real-life end-level applications.
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小型模块化反应堆的概念改变了解决未来能源危机的前景。考虑到其较低的投资要求,模块化,设计简单性和增强的安全功能,这种新的反应堆技术非常有希望。人工智能驱动的多尺度建模(中子,热液压,燃料性能等)在小型模块化反应堆的研究中纳入了数字双胞胎和相关的不确定性。在这项工作中,进行了一项关于耐亡燃料的多尺度建模的全面研究。探索了这些燃料在轻水的小型模块化反应堆中的应用。本章还重点介绍了机器学习和人工智能在设计优化,控制和监视小型模块反应器中的应用。最后,简要评估了有关人工智能在高燃烧复合事故耐受燃料的发展中的研究差距。还讨论了实现这些差距的必要行动。
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近年来,多个对象跟踪引起了研究人员的极大兴趣,它已成为计算机视觉中的趋势问题之一,尤其是随着自动驾驶的最新发展。 MOT是针对不同问题的关键视觉任务之一,例如拥挤的场景中的闭塞,相似的外观,小物体检测难度,ID切换等,以应对这些挑战,因为研究人员试图利用变压器的注意力机制,与田径的相互关系,与田径的相互关系,图形卷积神经网络,与暹罗网络不同帧中对象的外观相似性,他们还尝试了基于IOU匹配的CNN网络,使用LSTM的运动预测。为了将这些零散的技术在雨伞下采用,我们研究了过去三年发表的一百多篇论文,并试图提取近代研究人员更关注的技术来解决MOT的问题。我们已经征集了许多应用,可能性以及MOT如何与现实生活有关。我们的评论试图展示研究人员使用过时的技术的不同观点,并为潜在的研究人员提供了一些未来的方向。此外,我们在这篇评论中包括了流行的基准数据集和指标。
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在现代资本市场中,由于各种社会,财务,政治和其他动态因素,股票的价格通常被认为是高度波动和不可预测的。借助计算和周到的投资,股票市场可以通过最少的资本投资来确保可观的利润,而错误的预测可以轻松地为投资者带来灾难性的财务损失。本文介绍了最近引入的机器学习模型 - 变压器模型的应用,以预测孟加拉国领先的证券交易所达卡证券交易所(DSE)的未来价格。变压器模型已被广泛用于自然语言处理和计算机视觉任务,但据我们所知,从未在DSE进行股票价格预测任务。最近,介绍了代表时间序列功能的Time2VEC编码,使得可以采用变压器模型进行股票价格预测。本文集中于基于变压器的模型的应用,以根据其历史和每周的数据来预测DSE中列出的八个特定股票的价格转移。我们的实验证明了大多数股票的有希望的结果和可接受的根平方误差。
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语言是个人表达思想的方法。每种语言都有自己的字母和数字字符集。人们可以通过口头或书面交流相互交流。但是,每种语言都有同类语言。聋哑和/或静音的个人通过手语交流。孟加拉语还具有手语,称为BDSL。数据集是关于孟加拉手册图像的。该系列包含49个单独的孟加拉字母图像。 BDSL49是一个数据集,由29,490张具有49个标签的图像组成。在数据收集期间,已经记录了14个不同成年人的图像,每个人都有不同的背景和外观。在准备过程中,已经使用了几种策略来消除数据集中的噪声。该数据集可免费提供给研究人员。他们可以使用机器学习,计算机视觉和深度学习技术开发自动化系统。此外,该数据集使用了两个模型。第一个是用于检测,而第二个是用于识别。
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社交网络的快速发展以及互联网可用性的便利性加剧了虚假新闻和社交媒体网站上的谣言的泛滥。在共同19的流行病中,这种误导性信息通过使人们的身心生命处于危险之中,从而加剧了这种情况。为了限制这种不准确性的传播,从在线平台上确定虚假新闻可能是第一步。在这项研究中,作者通过实施了五个基于变压器的模型,例如Bert,Bert没有LSTM,Albert,Roberta和Bert&Albert的混合体,以检测Internet的Covid 19欺诈新闻。Covid 19假新闻数据集已用于培训和测试模型。在所有这些模型中,Roberta模型的性能优于其他模型,通过在真实和虚假类中获得0.98的F1分数。
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