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2017 14th International Joint Conference on Computer Science and Software Engineering (JCSSE)最新文献

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Developing a framework for services computing systems engineering 开发服务计算系统工程的框架
Suhardi, N. Kurniawan, M. I. W. Pramana, Jaka Semibiring
The use of services computing technology provides support to the development of modern services industries. Services computing utilizes and implements computing technology to develop IT services systems that are capable of supporting and developing services innovation. This condition motivates the organization to be able to present the services computing systems in the form of IT services systems. It needs a strong understanding of identifying, designing, building, implementing, and running the systems. This paper outlines the development of services computing systems engineering framework that can be used as the foundation for building services computing systems. The contribution of this paper is to enhance the knowledge of services computing from the engineering perspective.
服务计算技术的应用为现代服务业的发展提供了支撑。服务计算利用和实现计算技术,开发能够支持和发展服务创新的IT服务系统。这种情况促使组织能够以IT服务系统的形式呈现服务计算系统。它需要对识别、设计、构建、实现和运行系统有深刻的理解。本文概述了服务计算系统工程框架的发展,该框架可作为构建服务计算系统的基础。本文的贡献在于从工程的角度增强了对服务计算的认识。
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引用次数: 10
Temporal kNN for short-term ocean current prediction based on HF radar observations 基于高频雷达观测的短期海流预测的时间kNN
Arnon Jirakittayakorn, Teeranai Kormongkolkul, P. Vateekul, Kulsawasd Jitkajornwanich, S. Lawawirojwong
Ocean surface current prediction is at the core of various marine operational routines, including disaster monitoring, oil-spill backtracking, sea navigation and search-and-rescue operations. More accurate prediction can yield significant improvement to the overall system. Most existing short-term prediction methods applied numerical models based on physical processes. In this paper, we propose an alternative approach in predicting the surface current by utilizing temporal k-nearest-neighbor technique, which can predict the future surface current up to 24 hours in advance. Our model incorporates several pre-processing methods, e.g. feature extraction and data transformation, in order to capture the seasonal and temporal characteristics of the HF (high frequency) radar observation data. The developed model was implemented, validated and compared with the existing models using the same historical datasets collected from the HF coastal radar stations located along the Gulf of Thailand. Our experimental results indicate that the proposed model can achieve the highest accuracy among all methods, including ARIMA, exponential smoothing, and LSTM; and satisfy the oil-spill backtracking application requirements. In addition, we found that our system requires little to none maintenance and can easily be adapted to other coastal radar locations where the amount of historical HF radar observations is limited.
海洋表面洋流预测是各种海洋作业常规的核心,包括灾害监测、溢油回溯、海上导航和搜救行动。更准确的预测可以对整个系统产生显著的改进。现有的短期预报方法大多采用基于物理过程的数值模型。在本文中,我们提出了一种利用时间k-最近邻技术预测地表电流的替代方法,该方法可以提前24小时预测未来的地表电流。为了捕捉高频雷达观测数据的季节和时间特征,该模型结合了特征提取和数据变换等预处理方法。利用从泰国湾沿岸高频海岸雷达站收集的相同历史数据集,对所开发的模型进行了实施、验证并与现有模型进行了比较。实验结果表明,在ARIMA、指数平滑和LSTM方法中,该模型的准确率最高;并满足溢油回溯申请要求。此外,我们发现我们的系统几乎不需要维护,并且可以很容易地适应其他沿海雷达位置,其中历史高频雷达观测量有限。
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引用次数: 8
Development of a MySQL Sandbox for processing SQL statements: Case of DML and DDL statements 用于处理SQL语句的MySQL沙盒的开发:以DML和DDL语句为例
K. Atchariyachanvanich, Srinual Nalintippayawong, Tanasab Permpool
This research developed the MySQL Sandbox, a secured environment for processing SQL queries. It was implemented as a RESTful web service having three services - sandbox database creation, SQL statement processing and sandbox database resetting. It supports the simultaneous processing of multiple SQL statements from multiple users in multiple databases. It uses question identification (ID) and student ID to create separate databases for each student using the MySQL feature to manage the user's privileges of their own database. Every service returns a result in the JSON format, which is easy to understand. This MySQL Sandbox is the first tool to support judging DDL statements and complex DML statements. Existing SQL grading systems have limitations on the number of supported SQL statements because they are concerned about risks from some sensitive SQL statement, such as DDL and DML statements, other than the SELECT statement. This sandbox will help eliminate the security concerns that obstruct the development and improvement of SQL grading systems, while providing a greater freedom of learning query to students, which will help them improve their own skills in three dimensions i.e., database query, database administration and database programming.
本研究开发了MySQL沙盒,一个处理SQL查询的安全环境。它是作为一个RESTful web服务实现的,它有三个服务——沙箱数据库创建、SQL语句处理和沙箱数据库重置。它支持同时处理来自多个数据库中多个用户的多个SQL语句。它使用问题标识(ID)和学生ID为每个学生创建单独的数据库,使用MySQL特性来管理他们自己数据库的用户权限。每个服务返回JSON格式的结果,这很容易理解。这个MySQL沙盒是第一个支持判断DDL语句和复杂DML语句的工具。现有的SQL分级系统对支持的SQL语句的数量有限制,因为它们担心一些敏感的SQL语句(如DDL和DML语句)带来的风险,而不是SELECT语句。这个沙盒将有助于消除阻碍SQL评分系统开发和改进的安全问题,同时为学生提供更大的学习查询的自由,这将有助于他们在数据库查询、数据库管理和数据库编程三个方面提高自己的技能。
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引用次数: 6
Enhancing trustworthy of document using a combination of image hash and cryptographic hash 使用图像哈希和加密哈希的组合增强文档的可信度
Pornchai Assamongkol, Suphakant Phimoltares, Sasipa Panthuwadeethorn
Nowadays documents in form of printout are widely used. There are many attacks such as forgery that make the document unreliable. Some research studies a technique to make the document verifiable even though some contents are intentionally modified. Moreover, the problem of large amount of verification data causes limited use. This study proposes the method to make the printed document more reliable with the smaller verification data. Converting text image to string using OCR then apply cryptographic hash function, while applying compact image hash function to image can provide the lower consumption of space but maintains high performance. Experimental results show that the proposed method outperforms the recent work in terms of FAR, FRR, and harmonic mean.
如今,以打印形式的文件被广泛使用。有许多攻击,如伪造,使文件不可靠。一些研究研究了一种技术,即使某些内容被故意修改,也能使文件可验证。此外,验证数据量大的问题导致使用受限。本研究提出了以较小的验证数据使打印文档更可靠的方法。使用OCR将文本图像转换为字符串,然后应用加密哈希函数,而对图像应用压缩图像哈希函数可以提供更低的空间消耗,但保持高性能。实验结果表明,该方法在FAR、FRR和谐波均值方面都优于现有方法。
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引用次数: 0
Image Retrieval Based on Bit-Plane Distribution Entropy 基于位面分布熵的图像检索
Z. Shan, Wang Hai-tao
Based on the analysis of color histogram for image retrieval, a new descriptor, bit-plane distribution entropy (BPDE), is proposed in this paper. The image is firstly divided into eight bit-planes and the Gray-code of bit-planes is introduced to avoid the effect of changes in the intensity values on bit-planes. Then, an entropy vector is constructed by computing the entropy of the first four significant planes which contain most of the structural information of the image. Finally, with designing of the correlation-weighted matrix, the Mahalanobis distance is adopted to measure the similarity because of the correlation between the concerned vectors. Comparisons are conducted between BPDE and other descriptors. Experimental results show that the proposed method provides more significantly retrieval results than the traditional ones.
在分析颜色直方图用于图像检索的基础上,提出了一种新的描述符——位平面分布熵(BPDE)。首先将图像划分为8个位平面,并引入位平面的灰度编码,避免了强度值变化对位平面的影响;然后,通过计算包含图像大部分结构信息的前四个有效平面的熵来构造熵向量;最后,通过相关加权矩阵的设计,由于相关向量之间的相关性,采用马氏距离来度量相似度。对BPDE和其他描述符进行了比较。实验结果表明,该方法比传统方法的检索效果更显著。
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引用次数: 13
Multi-source Automatic Annotation for Deep Web 深网多源自动标注
Cui Xiao-jun, Peng Zhiyong, Wang Hui
A large number of Web pages returned by filling in search forms are not indexed by most search engines today. The set of such Web pages is referred to as the deep Web. Since results returned by Web databases seldom have proper annotations, it is necessary to assign meaningful labels to the results. This paper presents a framework of automatic annotation which uses multi-annotator to annotate results from different aspects. Especially, search engine-based annotator extends question-answering techniques commonly used in the AI community, constructing validate queries and posing to the search engine. It finds the most appropriate terms to annotate the data units by calculate the similarities between terms and instances. Information for annotating can be acquired automatically without the support of domain ontology. Experiments over four real world domains indicate that the proposed approach is highly effective.
通过填写搜索表单返回的大量Web页面没有被大多数搜索引擎编入索引。这些网页的集合被称为深网。由于Web数据库返回的结果很少有适当的注释,因此有必要为结果分配有意义的标签。本文提出了一个自动标注框架,利用多标注器对不同方面的结果进行标注。特别是,基于搜索引擎的注释器扩展了AI社区中常用的问答技术,构建验证查询并向搜索引擎提出问题。它通过计算术语和实例之间的相似度来找到最合适的术语来注释数据单元。标注信息可以在没有领域本体支持的情况下自动获取。在四个实际领域的实验表明,该方法是非常有效的。
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引用次数: 6
The Application of Blog in Modern Education 博客在现代教育中的应用
Shaohui Wang, Ma Lihua
Blog, as a new emerging thing in Internet in recent years, is the fourth generation intercommunication form in Internet that differs from the Email, BBS and ICQ. This paper introduces the basic characteristics of blog, and gives emphatic analysis to three of them: thought share, non-linearity and concentricity, criticalness and multivariate collision. These cultural characteristics determine that blog will be a potential education tool that can be applied to students as well as teachers. For studentspsila study, blog can be used for percolating information, providing abundant situations for study, raising students' media cultural levels, encouraging the dissimilar standpoints of the participants, providing the evaluation to the information and encouraging the studentspsila participation and cooperation. For the teacherspsila teaching, blog can help the teachers develop professionally and establish teacherspsila learning organization.
博客是近年来互联网上兴起的新兴事物,是区别于Email、BBS、ICQ的第四代互联网交流形式。本文介绍了博客的基本特征,重点分析了博客的三个特征:思想共享性、非线性同心性、批判性和多元碰撞性。这些文化特征决定了博客将成为一种潜在的教育工具,既可以应用于学生,也可以应用于教师。对于学生的学习,博客可以渗透信息,提供丰富的学习情境,提高学生的媒介文化水平,鼓励参与者的不同立场,对信息进行评价,鼓励学生的参与与合作。对于教师教学来说,博客可以帮助教师专业发展,建立教师学习组织。
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引用次数: 7
Study on Feature Extraction Method Based on Parallel Coordinate Plots 基于平行坐标图的特征提取方法研究
Cui Jianxin, H. Wen-xue, Gao Haibo
A novel feature extraction method based on parallel coordinate plots was presented. Observing the parallel coordinate plots, discovered that using the distance of one point to others on one dimensionality to measurement the classify performance of the variable, can express the fact classify performance more impersonally. The Euclidean distance or module matrix and the relative distance matrix were given. And the distance ratio of every sample point to other sorts and it to its own sort has more classify information. We achieved better performance when experiment on data which has poor statistical performance.
提出了一种基于平行坐标图的特征提取方法。观察平行坐标图,发现用一个维度上点到其他点的距离来衡量变量的分类性能,可以更客观地表达分类性能的事实。给出了欧几里德距离或模矩阵和相对距离矩阵。每个样本点与其他类别的距离之比以及与自己类别的距离之比具有更多的分类信息。在统计性能较差的数据上进行实验,取得了较好的效果。
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引用次数: 0
A Stereo Matching Approach to Detect Obstacle in ALV System ALV系统中障碍物检测的立体匹配方法
Xia Yongquan, Zhi Jun, Huang Min, Liu Weili, Ma Rui
In ALV system based on stereo vision, the obstacle detection is one of the most important problems. In this paper, an algorithm is proposed based on moment invariant to detect obstacle in ALV system. Firstly, a simple method is applied to binarize the images by the defined binarization function; Secondly, the binarized images are segmented using outer contour tracing algorithm and regions of left and right images are detected respectively; Lastly, the regions are matched between left and right image, the successful matched regions are the likely obstacle. Stereo pairs captured from ALV system are used to test the proposed algorithm, the result indicate that the approach is valid and feasible.
在基于立体视觉的自动驾驶汽车系统中,障碍物检测是最重要的问题之一。本文提出了一种基于矩不变的自动驾驶汽车系统障碍物检测算法。首先,采用一种简单的方法,通过定义二值化函数对图像进行二值化;其次,利用外轮廓跟踪算法对二值化后的图像进行分割,分别检测左右图像的区域;最后,在左右图像之间进行区域匹配,匹配成功的区域为可能的障碍物。利用从ALV系统捕获的立体图像对所提算法进行了测试,结果表明该方法是有效可行的。
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引用次数: 1
A Method for Diagnosing the Cylinder Fault of Engine Based on Artificial Neural Network 基于人工神经网络的发动机气缸故障诊断方法
L. Jianmin, Qiao Xinyong
Measured the instantaneous speed of diesel engine and analyzed the mechanism of fault diagnosis with speed signal. Processed the speed signal with method of spectrum analysis and complexity analysis and analyzed the change law of speed in condition of mis-cylinder. Calculated [K,C] complexity of speed signal and got the features of mis-cylinder fault. Set up a BP neural network to diagnose mis-cylinder fault of diesel engine.
测量了柴油机的瞬时转速,分析了转速信号诊断故障的机理。采用频谱分析和复杂度分析的方法对转速信号进行处理,分析了错缸情况下转速的变化规律。计算转速信号的复杂度[K,C],得到错缸故障的特征。建立了BP神经网络诊断柴油机错缸故障的方法。
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引用次数: 2
期刊
2017 14th International Joint Conference on Computer Science and Software Engineering (JCSSE)
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