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Proceedings of the 2020 6th International Conference on Computing and Artificial Intelligence最新文献

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A Malware Detection Method Based on Rgb Image 基于Rgb图像的恶意软件检测方法
Jinrong Chen
In recent years, with the development of the Internet, information security has become the focus of our attention. With the advent of the era of big data, the detection of large-scale malicious code has attracted a lot of researches' attention. For solving the problem, we propose a malware detection method based on operation and data flow of instructions, which is used by malicious code. It combines the operation and data flow of the instructions being used by malware, then reflects itself in an rgb image. Then, it uses the convolutional neural network that has advantages in image processing for deep-learning to detect the rgb image of malicious code. We have carried out a series of experiments. And through these experiments, it is proved that this kind of rgb image, which is generated by the fusion of the operation and data flow of instructions used by malware, could be well applied to the detection of malicious code. The experiment shows that the highest detection accuracy could be as high as 97.95% and the false positive rate could be as low as 2.618%.
近年来,随着互联网的发展,信息安全成为我们关注的焦点。随着大数据时代的到来,大规模恶意代码的检测引起了研究人员的广泛关注。为了解决这一问题,我们提出了一种基于指令操作和数据流的恶意软件检测方法,该方法被恶意代码所利用。它将恶意软件使用的指令的操作和数据流结合起来,然后在rgb图像中反映自己。然后,利用在图像处理方面具有优势的卷积神经网络进行深度学习,检测恶意代码的rgb图像。我们进行了一系列的实验。通过这些实验,证明了这种由恶意软件使用的指令的操作和数据流融合而产生的rgb图像可以很好地应用于恶意代码的检测。实验表明,该方法的检测准确率最高可达97.95%,假阳性率低至2.618%。
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引用次数: 1
Social Contagion on the Internet: Evidence from Experiment of Attitude towards Online Collective Event 网络上的社会传染:来自网络集体事件态度实验的证据
Chunlei Liu, Mi Shi
Contagion of negative events under virtual environment is lack of studies although previous researches have showed that the effect of contagion stands out when facing negative events in reality. Therefore, to test the effect of contagion on attitude toward online collective action is of significance. The data of experiment was collected via Internet. 90 people participated. The results showed: a) the phenomenon of attitude contagion happened under virtual environment; b) the participants were more sensitive to positive attitude than negative one of online collective events; c) male were more sensitive to the change of attitudes than female; d) participants at the ages between 25 to 30 years old were more sensitive to positive attitude than the rest. Finally implications and suggestion for further researches are discussed.
尽管已有研究表明,当面对现实中的消极事件时,虚拟环境中消极事件的传染效应会更加突出,但对虚拟环境中消极事件的传染效应研究较少。因此,检验传染对网络集体行动态度的影响具有重要意义。实验数据通过网络收集,共有90人参与。结果表明:a)虚拟环境下存在态度传染现象;B)参与者对网络集体事件的积极态度比消极态度更敏感;C)男性对态度的变化比女性更敏感;D)年龄在25到30岁之间的参与者比其他人对积极态度更敏感。最后对进一步研究的意义和建议进行了讨论。
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引用次数: 0
Attention-Based Graph Convolution Collaborative Filtering 基于注意力的图卷积协同过滤
Xiao-Zhe Han, Xiaobin Xu
The development of big data has brought changes to society and brought us challenges. How to extract useful information from complex data has become the focus of research in recent years. Personalized recommendation as an effective solution has received widespread attention in academia and industry. Collaborative filtering has been widely used by finding users with similar user behaviors as the preferences of similar users. However, the existing methods ignore the interaction information between the user and the item during feature extraction, which leads to imperfect feature extraction and affects the algorithm effect. This paper proposes a graph convolution collaborative filtering model based on the attention model, which uses the graph convolution network to embed user and item interaction information into feature vectors, and uses the attention model to highlight the relatively important interaction information among them, so as to obtain more excellent feature vector. The experimental results show that the model has a good effect on the two commonly used evaluation metrics: recall and normalized discounted cumulative gain(NDCG).
大数据的发展给社会带来了变化,也给我们带来了挑战。如何从复杂的数据中提取有用的信息已成为近年来研究的热点。个性化推荐作为一种有效的解决方案,受到了学术界和业界的广泛关注。协同过滤被广泛用于寻找具有相似用户行为的用户,作为相似用户的偏好。然而,现有方法在特征提取过程中忽略了用户与物品之间的交互信息,导致特征提取不完善,影响了算法效果。本文提出了一种基于注意模型的图卷积协同过滤模型,利用图卷积网络将用户和物品交互信息嵌入到特征向量中,并利用注意模型突出其中相对重要的交互信息,从而获得更优秀的特征向量。实验结果表明,该模型对召回率(recall)和归一化贴现累积增益(NDCG)这两个常用的评价指标有很好的效果。
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引用次数: 1
Deep Learning for Algorithmic Trading: Enhancing MACD Strategy 算法交易的深度学习:增强MACD策略
Y. Lei, Qinke Peng, Yiqing Shen
Transaction automation has always received widespread attention in the field of financial research. As one of the most popular technical indicators of traders, the Moving Average Convergence Divergence(MACD) indicator sometimes performs worse than expected in unstable financial markets. In this paper, we use Residual Networks to improve the effectiveness of traditional trading MACD algorithm in technical analysis. The rationale behind our research is that deep learning networks can learn market behavior and be able to estimate whether a given trading point is more likely to succeed. We verify our strategy (MACD-KURT) which is based on the combination of Residual Networks prediction and technical analysis on CSI300 index constituent stocks in the Chinese market, and the results show that the strategy based on the combination of Residual Networks prediction and technical analysis is better than the one based on technical analysis alone, ether in strategy's return or risk control.
交易自动化一直受到金融研究领域的广泛关注。作为最受交易者欢迎的技术指标之一,在不稳定的金融市场中,移动平均趋同背离(MACD)指标有时表现得比预期的要差。在本文中,我们使用残差网络来提高传统交易MACD算法在技术分析中的有效性。我们研究背后的基本原理是,深度学习网络可以学习市场行为,并能够估计一个给定的交易点是否更有可能成功。我们在中国市场上证300指数成分股上验证了基于残差网络预测与技术分析相结合的策略(MACD-KURT),结果表明,残差网络预测与技术分析相结合的策略无论在策略收益还是风险控制方面都优于单独基于技术分析的策略。
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引用次数: 9
An Efficient Model Compression Method of Pruning for Object Detection 一种用于目标检测的高效剪枝模型压缩方法
Junjie Yin, Li Wei, Ding Pu, Q. Miao
In this paper, we propose an efficient model compression method for object detection network. The key to this method is that we combine pruning and training into a single process. This design benefits in two aspects. First, we have a full control on pruning of convolution kernel, which ensures the model's accuracy to maximum extent. Second, compared with previous works, we overlap pruning with the training process instead of waiting for the model to be trained before pruning. In such a way, we can directly get a compressed model that is ready to use once training finished. We took experiments based on SSD(Single Shot MultiBox Detector) for verification. Firstly, when compressing the ssd300 model with dataset of Pascal VOC, we got model compression of 7.7X while the model accuracy only drops by 1.8%. Then on the COCO dataset, under the premise that the accuracy of the model remains unchanged, we got the model compressed by 2.8X.
本文提出了一种有效的目标检测网络模型压缩方法。这种方法的关键在于我们将修剪和训练结合成一个过程。这种设计有两个方面的好处。首先,我们对卷积核的剪枝进行了完全的控制,最大程度上保证了模型的准确性。其次,与之前的工作相比,我们将剪枝与训练过程重叠,而不是等待模型训练完成后再进行剪枝。这样,我们可以直接得到一个压缩的模型,一旦训练完成就可以使用。我们采用基于SSD(Single Shot MultiBox Detector)的实验进行验证。首先,用Pascal VOC数据集压缩ssd300模型时,模型压缩率为7.7X,而模型精度仅下降1.8%。然后在COCO数据集上,在保持模型精度不变的前提下,我们将模型压缩了2.8倍。
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引用次数: 0
Aspect-Based Opinion Mining of Students' Reviews on Online Courses 基于方面的学生在线课程评论意见挖掘
Zenun Kastrati, Blend Arifaj, Arianit Lubishtani, Fitim Gashi, Engjëll Nishliu
It is critical for higher education institutions to work on improvement of their teaching and learning strategy by examining feedback of students. Analyzing these feedbacks typically requires manual interventions which are not only labor intensive but prone to errors as well. Therefore, automatic models and techniques are needed to handle textual feedback efficiently. To this end, we propose a model for aspect-based opinion mining of comments of students that are posted in online learning platforms. The model aims to predict some of the key aspects related to an online course from students' reviews and then assess the attitude of students toward these commented aspects. The proposed model is tested on a large-scale real-world dataset which is collected for this purpose. The dataset consists of more than 21 thousand manually annotated students' reviews that are collected from Coursera. Conventional machine learning algorithms and deep learning techniques are used for prediction of the aspect categories and the aspect sentiment classification as well. The obtained results with respect to precision, recall, and F1 score are very promising.
通过对学生反馈的研究,提高高校的教与学策略是十分重要的。分析这些反馈通常需要人工干预,这不仅是劳动密集型的,而且容易出错。因此,需要自动化模型和技术来有效地处理文本反馈。为此,我们提出了一个基于方面的在线学习平台学生评论意见挖掘模型。该模型旨在从学生的评论中预测与在线课程相关的一些关键方面,然后评估学生对这些评论方面的态度。在为此目的收集的大规模真实数据集上对所提出的模型进行了测试。该数据集包括从Coursera收集的超过2.1万篇手工注释的学生评论。传统的机器学习算法和深度学习技术用于方面类别的预测和方面情感分类。得到的结果在精度、召回率和F1分数方面都很有希望。
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引用次数: 32
A Compatible ECG Diagnosis Cloud Computing Framework and Prototype Application 兼容心电诊断云计算框架及原型应用
Zhen Zhang, Hongqiang Li, Zheng Gong, Rize Jin, Tae-Sun Chung
The ECG signal analysis and diagnosis algorithms have been studied for decades. There are some state of art algorithms that have been developed. In this paper, we proposed a compatible ECG automatic diagnosis Cloud Computing framework in order to integrate these exist algorithms. On the other hand, there are many studies regarding the IoT based health diagnosis system. But there are few of that aiming at the personal use health monitor and diagnose. Basing on our proposed framework, users can diagnose their heart health status by themselves conveniently anywhere and anytime through the mobile application. The ECG character automatic classification computing algorithm is compatible for Python and MATLAB by introducing the hybrid programming technic on the cloud computing side. So that, it is easy for researchers to integrate their developed algorithm into this framework to build an application quickly. We developed a prototype application as well to verify the availability of this framework.
心电信号的分析和诊断算法已经研究了几十年。有一些最先进的算法已经被开发出来。在本文中,我们提出了一个兼容的心电自动诊断云计算框架,以整合这些现有的算法。另一方面,基于物联网的健康诊断系统也有很多研究。但针对个人使用的健康监测与诊断技术还不多见。基于我们提出的框架,用户可以随时随地方便地通过移动应用程序对自己的心脏健康状况进行诊断。心电特征自动分类计算算法通过在云计算端引入混合编程技术,兼容Python和MATLAB。因此,研究人员可以很容易地将他们开发的算法集成到该框架中,从而快速构建应用程序。我们还开发了一个原型应用程序来验证这个框架的可用性。
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引用次数: 0
An Improved Link Prediction Algorithm Based on Comprehensive Consideration of Joint Influence of Adjacent Nodes for Random Walk with Restart 一种综合考虑相邻节点联合影响的重新启动随机行走改进的链路预测算法
Liang Lv, Can Yi, Banglv Wu, Mingxuan Hu
In the basic random walk link prediction method, the probability of a walking particle when selecting a neighbor node for a walk is determined only by the degree of the current node, and it is fixed and uniform, without considering the impact of degree of the neighboring nodes on the transition probability. In view of this, a link prediction algorithm is proposed in which the degrees of the current node and its neighbor nodes jointly determine the transition probability. First, using the transition probability model of Metropolis-Hasting Random Walk (MHRW) algorithm to redefine the transition probability of the walking particles between the neighbor nodes, then combining Random Walk with Restart (RWR) similarity index to propose the Metropolis-Hasting Random Walk with Restart (MHRWR) algorithm in this paper for link prediction. The link prediction comparison experiments been performed on 6 different scale real network datasets. Compared with the benchmark algorithm, the MHRWR algorithm not only improved the AUC index, but also improved the Precision and Ranking score; compared with the RWR algorithm, the AUC value has increased by an average of 2.10%, and the highest is 5.34%. Experimental results show that the MHRWR algorithm of our proposed leads to superior accuracy in link prediction.
在基本随机行走链路预测方法中,行走粒子选择行走邻居节点时的概率仅由当前节点的程度决定,并且是固定的、均匀的,没有考虑相邻节点的程度对转移概率的影响。鉴于此,提出了一种当前节点与其相邻节点度共同决定转移概率的链路预测算法。首先,利用Metropolis-Hasting Random Walk (MHRW)算法的转移概率模型,重新定义行走粒子在相邻节点之间的转移概率,然后结合Random Walk with Restart (RWR)相似度指标,提出本文的Metropolis-Hasting Random Walk with Restart (MHRWR)算法进行链路预测。在6个不同规模的真实网络数据集上进行了链路预测对比实验。与基准算法相比,MHRWR算法不仅提高了AUC指数,而且提高了Precision和Ranking得分;与RWR算法相比,AUC值平均提高了2.10%,最高达到5.34%。实验结果表明,本文提出的MHRWR算法具有较高的链路预测精度。
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引用次数: 1
Biological Big Data Analysis of Competing Endogenous RNA Network and mRNA Biomarker in Liver Cancer 肝癌内源性RNA网络与mRNA生物标志物竞争的生物学大数据分析
Jianzhi Deng, Yuehan Zhou, Xiaohui Cheng, Tianyu Li, C. Qin
In our research, we try to find out the Competing Endogenous RNA Network (ceRNA) and the biomarker of Liver cancer (LC). 490 differentially expressed mRNAs, 248 differentially expressed lncRNAs and 66 differentially expressed miRNAs were screened from the TCGA liver data. Among then, the differentially expressed mRNAs were enriched in 88 biological process, 16 cellular component and 27 molecular function of the gene ontology. And they were mostly enriched in extracellular region, extracellular space, integral component of plasma membrane, regulation of transcription and DNA-templated sequence-specific DNA binding. 14 DElncRNAs, 11 DEmiRNAs and 4 DEmRNAs were built the ceRNA network based on their inter-regulatory. The up-regulated mRNA in liver tumor samples, CCNE1, was regard as the biomarker of liver cancer by the proof of survival analysis and receiver operating characteristic analysis.
在我们的研究中,我们试图找出竞争内源性RNA网络(ceRNA)和肝癌(LC)的生物标志物。从TCGA肝脏数据中筛选出490个差异表达mrna, 248个差异表达lncrna和66个差异表达mirna。其中,差异表达mrna富集于88个生物过程、16个细胞组分和27个基因本体的分子功能。它们主要富集于胞外区、胞外空间、质膜的组成部分、转录调控和DNA模板化序列特异性DNA结合。14个delncrna、11个demirna和4个demmrna基于它们的互调控构建了ceRNA网络。肝癌样本中上调的mRNA CCNE1通过生存证明分析和受体工作特征分析作为肝癌的生物标志物。
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引用次数: 0
A Novel Data Mining Approach for Detection of Polio Disease Using Spatio-Temporal Analysis 一种基于时空分析的脊髓灰质炎疾病检测数据挖掘新方法
Suleman Khan, F. Azam, Muhammad Waseem Anwar, Yawar Rasheed, Mudassar Saleem, N. Ejaz
Polio is an epidemic disease, which may lead to paralysis and may be fatal enough to cause even death of the infected person. In most of the cases, polio virus has mild symptoms, so, there is a high probability that it can remain unnoticed. This paper aims to understand the eruption, severity and spread of polio virus from a spatio-temporal point of view. This research proposed a novel machine learning model to predict the chances of polio. Particularly, data sets are developed by getting data from several sources such as NIH (National Institute of Health), databases of medical stores and transport logs. Subsequently, K-mean algorithm is applied on the given data to predict the chances of polio's breakout. The preliminary study proved that the proposed model is significant step towards mitigating the challenges of this fatal disease. Furthermore, it also provides a platform/ framework, which can be extended in the development of an automated tool for polio virus detection.
小儿麻痹症是一种流行病,它可能导致瘫痪,甚至可能导致感染者死亡。在大多数情况下,脊髓灰质炎病毒的症状很轻微,因此很有可能不被注意到。本文旨在从时空的角度了解脊髓灰质炎病毒的爆发、严重程度和传播。这项研究提出了一种新的机器学习模型来预测小儿麻痹症的几率。特别是,数据集是通过从诸如美国国立卫生研究院(NIH)、医疗仓库数据库和运输日志等多个来源获取数据而开发的。然后,对给定的数据应用k均值算法预测脊髓灰质炎爆发的几率。初步研究证明,所提出的模型是朝着减轻这种致命疾病挑战迈出的重要一步。此外,它还提供了一个平台/框架,可在开发脊髓灰质炎病毒检测自动化工具时加以扩展。
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引用次数: 0
期刊
Proceedings of the 2020 6th International Conference on Computing and Artificial Intelligence
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