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2019 IEEE 2nd International Conference on Information and Computer Technologies (ICICT)最新文献

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Image Denoising Using A Generative Adversarial Network 基于生成对抗网络的图像去噪
Abeer Alsaiari, Ridhi Rustagi, A. Alhakamy, M. M. Thomas, A. Forbes
Animation studios render 3D scenes using a technique called path tracing which enables them to create high quality photorealistic frames. Path tracing involves shooting 1000’s of rays into a pixel randomly (Monte Carlo) which will then hit the objects in the scene and, based on the reflective property of the object, these rays reflect or refract or get absorbed. The colors returned by these rays are averaged to determine the color of the pixel. This process is repeated for all the pixels. Due to the computational complexity it might take 8–16 hours to render a single frame. We implemented a neural network-based solution to reduce the time it takes to render a frame to less than a second using a generative adversarial network (GAN), once the network is trained. The main idea behind this proposed method is to render the image using a much smaller number of samples per pixel than is normal for path tracing (e.g., 1, 4, or 8 samples instead of, say, 32,000 samples) and then pass the noisy, incompletely rendered image to our network, which is capable of generating a high-quality photorealistic image.
动画工作室使用一种称为路径跟踪的技术来渲染3D场景,这使他们能够创建高质量的逼真帧。路径跟踪包括将1000条光线随机射入一个像素(蒙特卡罗),然后这些光线将击中场景中的物体,根据物体的反射特性,这些光线反射或折射或被吸收。将这些光线返回的颜色取平均值以确定像素的颜色。对所有像素重复此过程。由于计算复杂性,渲染一帧可能需要8-16个小时。我们实现了一种基于神经网络的解决方案,一旦网络经过训练,就可以使用生成式对抗网络(GAN)将渲染一帧所需的时间减少到不到一秒。这种方法背后的主要思想是使用比正常路径跟踪(例如,1,4或8个样本,而不是32,000个样本)更少的每像素样本数来渲染图像,然后将有噪声的,不完全渲染的图像传递给我们的网络,这能够生成高质量的逼真图像。
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引用次数: 38
The Application of An Optimized Convolutional Neural Network Model in Film Criticism 一种优化卷积神经网络模型在电影评论中的应用
Jingren Zhang, Fang’ai Liu, Weizhi Xu
Constructing a model of online film and television commentary sentiment classification can effectively guide film and television producers to comprehensively understand the audience acceptance of film and television works, and improve it. Traditional methods based on sentiment lexicon and machine learning exist in a series of Insufficient: ignore context semantics, too single word, sparse features, etc. Based on the existing convolutional neural network model, this paper systematically optimizes its internal structure, and proposes a NCNM (New Convolutional Neural Network model) model based on multi-sliding window and new pooling method, and uses feature vectors to cluster feature words. . In this paper, the Stanford SST dataset and Cornell MRD dataset are used to verify the classification effect of the proposed model. The experimental results show that ncnnm has a certain improvement in the accuracy of the emotional classification of short text video reviews compared with the existing mainstream methods..
构建网络影视评论情感分类模型,可以有效指导影视制作方全面了解影视作品的受众接受程度,并对其进行改进。传统的基于情感词典和机器学习的方法存在着一系列不足:忽略语境语义、过于单字、特征稀疏等。本文在现有卷积神经网络模型的基础上,对其内部结构进行了系统优化,提出了一种基于多滑动窗口和新池化方法的NCNM (New convolutional neural network model)模型,并利用特征向量对特词词进行聚类。本文使用Stanford SST数据集和Cornell MRD数据集验证了所提出模型的分类效果。实验结果表明,与现有的主流方法相比,ncnnm在短文本视频评论情感分类的准确率上有一定的提高。
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引用次数: 0
Utilization of Data Mining for Generalizable, All-Admission Prediction of Inpatient Mortality 利用数据挖掘对住院病人死亡率进行可推广的全住院期预测
Trevor Hillsgrove, Robert Steele
The all-condition prediction of patient mortality at the time of hospital admission has significant clinical value and broader implications for patient care and clinical decision support capabilities. In this study we have applied machine learning models to predict inpatient mortality, that is whether a patient will die during the hospital stay, as predicted from a time near to admission. We have utilized an Agency for Healthcare Research and Quality-provided large dataset of hospital discharges, to develop and evaluate a number of machine learning models. We report on the performance of the best performing of these models, with the best performing model having an AUC score of 0.802. We also evaluate the generalizability of the models via evaluating these on a separate large dataset corresponding to a different time period. We describe the results and provide an analysis and discussion of their significance.
住院时患者死亡率的全条件预测对患者护理和临床决策支持能力具有重要的临床价值和更广泛的意义。在这项研究中,我们应用机器学习模型来预测住院患者死亡率,即患者是否会在住院期间死亡,正如从入院前预测的那样。我们利用医疗保健研究和质量机构提供的医院出院大型数据集,开发和评估了许多机器学习模型。我们报告了这些模型中表现最好的模型的性能,其中表现最好的模型的AUC得分为0.802。我们还通过在对应于不同时间段的单独大型数据集上评估这些模型来评估模型的泛化性。我们描述了结果,并对其意义进行了分析和讨论。
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引用次数: 5
Policy Reuse in Reinforcement Learning for Modular Agents 模块化智能体强化学习中的策略重用
Sayyed Jaffar Ali Raza, Mingjie Lin
We present reusable policy method for modular reinforcement learning problem in continuous state space. Our method relies on two-layered learning architecture. The first layer partitions the agent’s problem space into n-folds sub-agents that are inter-connected with each other with dexterity identical to original problem. It further learns a local control policy for standalone 1-fold sub-agent. The second layer learns a global policy to reuse ‘already learnt’ standalone local policy over each n sub-agents by sampling local policy with global parameters for each sub-agent—parameterizing local policy independently to approximate non-linear interconnections between sub-agents. We demonstrate our method on simulation example of 12-DOF modular robot that learns maneuver pattern of snake-like gait. We also compare our proposed method against standard single-policy learning methods to benchmark optimality.
针对连续状态空间中的模块化强化学习问题,提出了可重用策略方法。我们的方法依赖于两层学习架构。第一层将智能体的问题空间划分为n层子智能体,这些子智能体以与原问题相同的灵巧度相互连接。它进一步学习了独立1-fold子代理的本地控制策略。第二层学习全局策略,通过对每个子代理使用全局参数采样本地策略,从而在每n个子代理上重用“已经学习过的”独立本地策略,独立参数化本地策略以近似子代理之间的非线性互连。最后以一个学习蛇形步态机动模式的12自由度模块化机器人为例进行了仿真验证。我们还将我们提出的方法与标准的单策略学习方法进行了比较,以衡量最优性。
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引用次数: 1
ICICT 2019 Message from the Program Chair ICICT 2019项目主席致辞
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引用次数: 0
AR360: Dynamic Illumination for Augmented Reality with Real-Time Interaction AR360:实时交互增强现实的动态照明
A. Alhakamy, M. Tuceryan
Current augmented and mixed reality systems suffer a lack of correct illumination modeling where the virtual objects render the same lighting condition as the real environment. While we are experiencing astonishing results from the entertainment industry in multiple media forms, the procedure is mostly accomplished offline. The illumination information extracted from the physical scene is used to interactively render the virtual objects which results in a more realistic output in real-time. In this paper, we present a method that detects the physical illumination with dynamic scene, then uses the extracted illumination to render the virtual objects added to the scene. The method has three steps that are assumed to be working concurrently in real-time. The first is the estimation of the direct illumination (incident light) from the physical scene using computer vision techniques through a 360° live-feed camera connected to AR device. The second is the simulation of indirect illumination (reflected light) from the real-world surfaces to virtual objects rendering using region capture of 2D texture from the AR camera view. The third is defining the virtual objects with proper lighting and shadowing characteristics using shader language through multiple passes. Finally, we tested our work with multiple lighting conditions to evaluate the accuracy of results based on the shadow falling from the virtual objects which should be consistent with the shadow falling from the real objects with a reduced performance cost.
当前的增强现实和混合现实系统缺乏正确的照明建模,其中虚拟对象呈现与真实环境相同的照明条件。虽然我们正在经历着娱乐行业以多种媒体形式带来的惊人结果,但这一过程大多是在线下完成的。利用从物理场景中提取的光照信息对虚拟物体进行交互渲染,使输出结果更加真实。本文提出了一种检测动态场景中物理光照的方法,然后利用提取的光照对添加到场景中的虚拟物体进行渲染。该方法有三个步骤,假设它们是实时并发工作的。首先是使用计算机视觉技术,通过连接到AR设备的360°实时馈电摄像头,估计物理场景的直接照明(入射光)。第二个是模拟从现实世界表面到虚拟物体的间接照明(反射光),使用AR相机视图中2D纹理的区域捕获进行渲染。第三是通过多个通道使用shader语言定义具有适当照明和阴影特征的虚拟对象。最后,我们在多种光照条件下对我们的工作进行了测试,以评估基于虚拟物体阴影的结果的准确性,该结果应该与真实物体的阴影一致,并降低性能成本。
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引用次数: 13
Phenomenology of Androids: Between Human and Non-human 机器人现象学:介于人类与非人类之间
Y. Shaev, E. Samoylova
The information and computer technologies are developing very fast. Every year information and computer systems are becoming more complicated. Such new systems are gradually improving human/nonhuman interactions. Artificial intelligence also becomes smarter and smarter. Modern robots can solve not only the problems in the production of goods and services, transport and infrastructure issues, but they becoming an integral part of everyday human practices in the areas of life, communication, entertainment and leisure. An important feature of modern robots is their „human-like factor„, which is focusing not only on functionality, but also on humanoid characteristics of appearance, functions, senses, voice etc. Humanoid robots or androids need to „to be like a real human„, so they need to copy human activity. Androids are oriented to the reproduction or retranslation of archetypal images, rooted in culture and remaining relevant even in the modern world of high technologies. In this case, the most important issue is to understand the role of androids in the structures of everyday practice. Moreover, we need to rethink the phenomenology of their „physicality„, which is focused on patterns of human interactions and „communications„, to the possibilities of embedding into the structures of social interaction with reproduction of human behavior patterns. Some examples of rethinking of this, we can find in popular culture and computer games. These cultural phenomena help us to understand the transformation of the being of a modern human, his physicality and projection of his „I„ on technical devices and artificial intelligence.
信息和计算机技术发展非常快。每年信息和计算机系统都变得越来越复杂。这些新系统正在逐渐改善人类/非人类的互动。人工智能也变得越来越聪明。现代机器人不仅可以解决产品和服务的生产、运输和基础设施问题,而且它们已经成为人类日常生活、交流、娱乐和休闲活动中不可或缺的一部分。现代机器人的一个重要特征是它们的“类人因素”,它不仅关注功能,还关注外观、功能、感官、声音等类人特征。人形机器人或机器人需要“像一个真正的人”,所以它们需要模仿人类的活动。机器人以复制或重新翻译原型图像为导向,根植于文化,即使在高科技的现代世界也保持相关性。在这种情况下,最重要的问题是理解机器人在日常实践结构中的作用。此外,我们需要重新思考它们的“物质性”现象学,它关注的是人类互动和“交流”的模式,以及将人类行为模式的复制嵌入社会互动结构的可能性。我们可以在流行文化和电脑游戏中找到一些重新思考这一点的例子。这些文化现象帮助我们理解现代人的存在、他的物质性以及他的“我”在技术设备和人工智能上的投射的转变。
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引用次数: 0
Tokenization: Open Asset Protocol on Blockchain token化:区块链上的开放资产协议
Xuefeng Li, Xiaochuan Wu, Xin Pei, Zhuojun Yao
Token represents the right to do some operations in software. In blockchain, there are two types of tokens: utility token and security token. They endow the items of token more value in blockchain world. In order to achieve asset tokenization, we propose a new kind of token in this paper, the asset-backed token, which is used for the proposed blockchain based Open Asset Protocol (OAP). Using OAP, we show to how to convert both of the real and virtual objects to asset-backed tokens on blockchain. Then we discussed a new method for data utilization and privacy-preserving based on OAP and compare with our previous scheme, the Secure Multi-Party Computation (SMPC). Additionally, we introduce the Policy-Backed Token(PBT), which is an instance implementing OAP in insurance industry. We have applied PBT in the airline travel insurance product E-life of an insurance company.
令牌代表在软件中进行某些操作的权利。在区块链中,有两种类型的令牌:实用令牌和安全令牌。它们赋予了代币项目在区块链世界中的更多价值。为了实现资产代币化,本文提出了一种新的代币,即资产支持代币,用于所提出的基于区块链的开放资产协议(OAP)。使用OAP,我们展示了如何将真实和虚拟对象转换为区块链上的资产支持令牌。然后讨论了一种新的基于OAP的数据利用和隐私保护方法,并与之前的方案进行了比较,即安全多方计算(SMPC)。此外,我们还介绍了政策支持令牌(PBT),这是保险行业实现OAP的一个实例。我们将PBT应用于某保险公司的航空旅行保险产品E-life。
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引用次数: 23
Design and Application of Fog Computing Model Based on Big Data 基于大数据的雾计算模型设计与应用
Baoling Qin, Xiaowei Lin, Sina Li, Qiao Luo, F. Zheng, Jiejian Cai, Yunshi Luo
Fog computing based on big data is a hot topic in the research of computing technology at home and abroad. With the wide application and popularity of IoT (Internet of Things), the big data generated by edge devices is exploding, and cloud computing models are becoming increasingly inadequate to meet the needs of big data processing and communication, which is mainly manifested as follows. Slow data processing, insufficient storage space, prolonged communication and many other issues. Fog computing, of which the advantage is distributed computing, namely the „de-centralized„ mode calculation, is the suitable solution to solve these problems. In the IoT system, fog computing model based on big data is constructed to distribute the big data computing, storage and communication in the system to the edge device. The purpose is to make the system structure simpler, more modular and intelligent, duce network congestion, exploit advantages of edge devices and improve high quality intelligence of IoT applications, and moreover, to reduce the deployment of IoT hardware and operating costs. Taking the cloud robotics as an example, it is proposed to embed the fog computing technology in the cloud robotics system, which greatly improves the computing function of the cloud robotics system. In short, it provides theoretical support and scientific experimental basis for the informationization and intelligence of all walks of life, and its research has certain value and significance.
基于大数据的雾计算是国内外计算技术研究的热点。随着IoT (Internet of Things)的广泛应用和普及,边缘设备产生的大数据呈爆炸式增长,云计算模型越来越不能满足大数据处理和通信的需求,主要表现在以下几个方面。数据处理速度慢,存储空间不足,通信时间长等诸多问题。雾计算的优势在于分布式计算,即“去中心化”模式的计算,是解决这些问题的合适方案。在物联网系统中,构建基于大数据的雾计算模型,将系统中的大数据计算、存储、通信等工作分配给边缘设备。目的是使系统结构更简单、模块化和智能化,减少网络拥塞,发挥边缘设备的优势,提高物联网应用的高质量智能化,同时降低物联网硬件的部署和运营成本。以云机器人为例,提出在云机器人系统中嵌入雾计算技术,大大提高了云机器人系统的计算功能。总之,它为各行各业的信息化、智能化提供了理论支撑和科学实验依据,其研究具有一定的价值和意义。
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引用次数: 4
ICICT 2019 Copyright Page ICICT 2019版权页
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引用次数: 0
期刊
2019 IEEE 2nd International Conference on Information and Computer Technologies (ICICT)
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