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2016 3rd International Conference on Advanced Computing and Communication Systems (ICACCS)最新文献

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Entity based source code summarization (EBSCS) 基于实体的源代码摘要(EBSCS)
Chitti Babu K, C. Kavitha, N. Sankarram
In the software evolution process a developer must analyze the source code in order to understand the entities in it. In general this analysis is done manually which takes lots of time and is a tedious task. The other option is to use automated source code summarization techniques. Existing techniques does not provide the required summary and most of them are complex. Source code summarization is the task of creating readable summaries that describe the functionality of software. Source code summarization is a critical component of documentation generation. In this paper we propose a novel summarization technique called EBSCS which is based on the entities like packages, classes, methods control statements and comments in the source code. In this technique description is generated for the entities and the comment lines are used to generate summary for the source code.
在软件开发过程中,开发人员必须分析源代码,以便理解其中的实体。一般来说,这种分析是手动完成的,这需要花费大量时间,而且是一项乏味的任务。另一种选择是使用自动源代码汇总技术。现有的技术不能提供所需的摘要,而且大多数技术都很复杂。源代码摘要是创建描述软件功能的可读摘要的任务。源代码摘要是文档生成的关键组成部分。本文提出了一种基于源代码中的包、类、方法、控制语句和注释等实体的新型摘要技术EBSCS。在这项技术中,描述是为实体生成的,注释行是用来为源代码生成摘要的。
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引用次数: 5
Image indexing and Retrieval using Error Diffusion BTC with relevance feedback 带有相关反馈的错误扩散BTC图像索引与检索
M. Meharban, S. Priya
To overcome the semantic gap in the retrieval process, the user relevance feedback frame work is added to the current image retrieval system. Relevance feedback method iteratively refines and updates the retrieved result by learning the user-labeled examples to further improves the overall performance. In the proposed scheme feature descriptor derived from the EDBTC compressed data stream. Firstly, a color image is decomposed using EDBTC scheme to produce two new image representations, namely color quantizer and bitmap image by using Improved LBG-VQ (ILBG)algorithm. Two image feature descriptors called Color Histogram Feature (CHF), and Bit Pattern Feature(BPF) can be subsequently generated from the EDBTC color quantizer and its corresponding bitmap image respectively without performing the decoding process. The similarity degree between two images is simply measured with the similarity distance score of their feature descriptor. Second, we presented a relevance feedback (RF) framework for effective image retrieval by using a support vector machine (SVM). Effectiveness of EDBTC feature descriptor is quantitatively examined and compared in the RGB color space as well as in HSI color channel. Extensive experiments shows that there is a significant improvement in retrieval performance with the proposed method using SVMRF compared with the retrieval performance without RF.
为了克服检索过程中的语义差距,在现有的图像检索系统中加入了用户相关反馈框架。相关性反馈方法通过学习用户标记的样本,对检索结果进行迭代细化和更新,进一步提高整体性能。在该方案中,特征描述符来源于EDBTC压缩数据流。首先,利用EDBTC方案对彩色图像进行分解,利用改进的LBG-VQ (ILBG)算法生成颜色量化和位图图像两种新的图像表示形式;随后,可以从EDBTC颜色量化器及其相应的位图图像分别生成两个图像特征描述符,称为颜色直方图特征(CHF)和位模式特征(BPF),而无需执行解码过程。简单地用两幅图像的特征描述符的相似距离得分来衡量两幅图像之间的相似度。其次,我们提出了一个相关反馈(RF)框架,利用支持向量机(SVM)有效地检索图像。对EDBTC特征描述符在RGB色彩空间和HSI色彩通道中的有效性进行了定量检验和比较。大量的实验表明,与不使用射频的检索性能相比,使用SVMRF的方法检索性能有显著提高。
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引用次数: 1
Hybrid Multi-rate Multipath Routing (HMMR) protocol 混合多速率多路径路由(HMMR)协议
Elsa Baby, K. Senthilkumar
Multipath on demand routing protocols perform better than single path routing protocols under mobility conditions due to the availability of alternate paths reducing route discovery frequency and routing overhead. However all these routing protocols use minimum hop count as the routing metric to discover shortest path from source to the destination. With the advent of multi-rate wireless standards such as IEEE 802.11 a/b/g, use of minimum hop count as routing metric results in under utilization of available bandwidth. This paper proposes an hybrid multi-rate multipath routing protocol based on AOMDV. The proposed routing scheme uses SNR of a link to identify its transmission rate and assigns a link cost based on the measured transmission rate. Route with less path cost (cumulative link cost) is chosen as the best path. Simulations are carried out in Qualnet. The simulation result shows that the proposed routing scheme performs better than AOMDV in terms of throughput, delay, packet delivery and routing overhead.
多路径随需应变路由协议在可移动性条件下比单路径路由协议性能更好,因为可选路径的可用性降低了路由发现频率和路由开销。然而,所有这些路由协议都使用最小跳数作为路由度量来发现从源到目的的最短路径。随着IEEE 802.11 a/b/g等多速率无线标准的出现,使用最小跳数作为路由度量导致可用带宽利用率不足。提出了一种基于AOMDV的混合多速率多径路由协议。该路由方案使用链路的信噪比来识别其传输速率,并根据测量的传输速率分配链路开销。选择路径开销(累积链路开销)较小的路由作为最佳路径。在Qualnet中进行了仿真。仿真结果表明,该路由方案在吞吐量、时延、分组传输和路由开销等方面都优于AOMDV。
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引用次数: 1
Survey on reversible data hiding techniques 可逆数据隐藏技术综述
R. Rathika, S. Kumaresan
Data transmissions using computer networks has created the need for security. Many robust message encryption techniques have been developed to supply this demand. Steganography is one form of cryptography where we hide data within large texts or images. Reversible data hiding can be considered as a form of steganography in which we hide data within images, but with a variation that, in reversible data hiding the original cover can be recovered losslessly after the embedded messages are extracted. This paper presents a detailed survey on various techniques available for RDH. The techniques include Histogram shifting, LSB modification method, Difference Expansion, Interpolation Technique.
使用计算机网络进行数据传输产生了对安全的需求。为了满足这种需求,已经开发了许多健壮的消息加密技术。隐写术是密码学的一种形式,我们将数据隐藏在大文本或图像中。可逆数据隐藏可以被认为是一种隐写术,在这种隐写术中,我们将数据隐藏在图像中,但有一个变化,在可逆数据隐藏中,在提取嵌入的信息后,可以无损地恢复原始覆盖。本文详细介绍了可用于RDH的各种技术。技术包括直方图移位、LSB修正法、差分展开、插值技术等。
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引用次数: 9
A multilingual ontology for Tamil Literary works 泰米尔文学作品的多语言本体
Ravi Lourdusamy, Merlin Florrence Joseph
Ontology plays a vital role in teaching and learning. In the last decade most of the learning sites were trying to adopt semantic web techniques to develop the learning materials. It is easy to visualize the concepts that are developed in ontology in an effective manner. In this article a multilingual ontology is developed to teach Tamil literary, Thirukkural by espousing the features of ontology. It is one of the famous Tamil literary in the world and has been translated into more than 80 languages. Three ontologies are developed for Thirukkural in Tamil, English and Hindi languages and they are merged into a single ontology. The relationships between the classes are established by mapping the ontologies.
本体论在教学中起着至关重要的作用。在过去的十年中,大多数学习网站都试图采用语义网技术来开发学习材料。在本体中开发的概念很容易以一种有效的方式可视化。在本文中,通过支持本体的特征,开发了一个多语言本体来教授泰米尔文学,Thirukkural。它是世界上著名的泰米尔文学作品之一,已被翻译成80多种语言。为泰米尔语、英语和印地语的Thirukkural语言开发了三个本体,并将它们合并为一个本体。类之间的关系是通过映射本体来建立的。
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引用次数: 2
Measurement of e-learning quality 在线学习质量的测量
Chandrima Chatterjee
To refer technologically enhanced learning, the term e-learning is used throughout the paper. In this paper selected aspects of implementation model is used to improve the quality of e-learning. A complex quality assurance method for e-learning quality (ELQ) has been proposed and verified in this paper. To evaluate the blended learning quality a modified Kirkpatrick evaluation four model has been used. Then collection and analysis of the experimental data has been performed. From these analysis future improvements will be obtained.
为了提到技术上增强的学习,整个论文中都使用了“电子学习”这个术语。本文选取了几个方面的实施模式来提高电子学习的质量。本文提出并验证了一种复杂的电子学习质量保证方法。为了评价混合学习的质量,采用了改进的Kirkpatrick评价模型。然后对实验数据进行了收集和分析。从这些分析中可以得到未来的改进。
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引用次数: 7
Interval optimization technique for the coordination of hydro units with wind power generation 水力发电机组与风力发电机组协调的区间优化技术
A. Oshiya, K. Lakshmi
In the deregulated electricity market, the power generators profit depends on its unit scheduling, bidding strategies and on the market price. The coordination of wind energy with other renewable resources serve an effective way for the generating companies to increase its payoff. Accordingly, the wind power with hydro power system coordination incur the enhancement of power dispatch and thereby reducing imbalance prices. This paper proposes an interval optimization technique to solve the price based unit commitment problem. It also suggests to solve the bidding strategy with the accurate intervals. Variations in wind hydro power, the volatilities in day ahead energy price, intra hour energy price are considered as periodic numbers. Comparing to the conventional technique it is easier to determine and optimizes the entire profit intervals. Henceforth, has an inherent advantage on computational complexity and associates under worst case scenarios.
在放松管制的电力市场中,发电企业的利润取决于其机组调度、投标策略和市场价格。风能与其他可再生能源的协调利用是发电企业提高收益的有效途径。因此,风力发电与水力发电系统的协调可以增强电力调度,从而减少不平衡电价。提出了一种区间优化技术来解决基于价格的机组承诺问题。并提出了以准确的区间来解决竞价策略的建议。风力发电的变化、日前电价的波动、小时内电价的波动被认为是周期数。与传统方法相比,它更容易确定和优化整个利润区间。因此,在最坏情况下,在计算复杂性和关联方面具有固有的优势。
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引用次数: 1
An Internet of Things based approach to thermal comfort measurement and monitoring 基于物联网的热舒适测量和监测方法
P. Ray
Thermal comfort is one of the important climatic factors that conditions human living hood. The existing primary methods of thermal comfort measurement are inadequate to monitor the comfort level of human body through computer networks, especially internet like infrastructure. In this paper, an Internet of Things based thermal comfort measurement and monitoring technique is proposed. Missenard indexing has been implemented for measuring thermal comfort by IoT cloud assisted architecture. Real-time graphical visualizations of thermal comfort are obtained from Plotly and ThingSpeak cloud platforms. Serial data output is also generated while performing the experiment.
热舒适是影响人类生存环境的重要气候因素之一。现有的主要热舒适测量方法不足以通过计算机网络,特别是互联网等基础设施来监测人体的舒适程度。本文提出了一种基于物联网的热舒适测量与监测技术。Missenard索引已通过物联网云辅助架构实现,用于测量热舒适性。热舒适的实时图形可视化是从Plotly和ThingSpeak云平台获得的。在进行实验的同时也产生了串行数据输出。
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引用次数: 17
A comparative analysis on efficiency of contemporary association rule mining algorithm 当代关联规则挖掘算法效率的比较分析
T. Bharathi, P. Krishnakumari
A vital procedure that is indispensable in the field of data mining is the association rule mining in which the focus is up on the finding of the curious associations, correlations and frequent item sets amongst the list of items in a given database. There are typically two steps in the algorithms that employ association rules. The first step being the finding of the frequent sets and the second being the usage of these sets in order to generate the association rules. The current paper puts forward an analysis of comparison between the various association rule mining algorithms. Besides, the applications, benefits and the drawbacks have also been studied in the paper. The paper reviews the features, data sets variants, support, confidence, rule generation and candidate generation of the algorithms that are employed to mine the association rules.
关联规则挖掘是数据挖掘领域中不可或缺的一个重要过程,其重点是在给定数据库中的项目列表中发现奇怪的关联、相关性和频繁的项目集。在使用关联规则的算法中,通常有两个步骤。第一步是查找频繁集,第二步是使用这些频繁集来生成关联规则。本文对各种关联规则挖掘算法进行了比较分析。此外,本文还对其应用、优点和不足进行了研究。本文综述了关联规则挖掘算法的特征、数据集变体、支持度、置信度、规则生成和候选生成。
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引用次数: 5
Hybrid SQL injection detection system 混合SQL注入检测系统
B. Priyaa, M. Devi
The use of database driven web applications are increasing every day. Attacks on those web applications are also increasing. One of the common web application attacks is SQL Injection attack. These attacks are a code injection or insertion of SQL query via input data from the client to the application. There are many detection techniques implemented, but they have focused on the SQL structure at the application level. So those techniques failed to detect some of the attacks at the database level. The existing approaches use classification techniques and suitable kernel functions to detect the attack at the database level. As the SVM classification is the supervised learning algorithm, the unknown attacks can't be detected. In this paper, we propose a hybrid framework using the EDADT (Efficient Data Adaptive Decision Tree) algorithm which is the semi - supervised algorithm and SVM classification algorithm. It uses the internal query tree from the database log for good performance of framework. To get internal query tree, the query tree is converted to n - dimensional feature vector by using multi - dimensional sequence. The semantic features are used as the component of feature vector. And also the syntactic and semantic feature is used to generate multi - dimensional sequences. Then the extracted feature is converted into numeric value, if the feature contains any string value. Experimental results show that the proposed approach is more accurate in detecting the attacks than existing approaches.
数据库驱动的web应用程序的使用每天都在增加。针对这些web应用程序的攻击也在增加。SQL注入攻击是常见的web应用攻击之一。这些攻击是通过从客户机到应用程序的输入数据进行代码注入或插入SQL查询。已经实现了许多检测技术,但它们都集中在应用程序级别的SQL结构上。因此,这些技术无法在数据库级别检测到一些攻击。现有的方法使用分类技术和合适的核函数来检测数据库级的攻击。由于支持向量机分类是监督学习算法,无法检测未知攻击。本文提出了一种结合半监督算法和支持向量机分类算法的EDADT (Efficient Data Adaptive Decision Tree)算法的混合框架。它使用数据库日志中的内部查询树来提高框架的性能。为了得到内部查询树,利用多维序列将查询树转换为n维特征向量。将语义特征作为特征向量的组成部分。并利用句法和语义特征生成多维序列。然后,如果提取的特征包含任何字符串值,则将其转换为数值。实验结果表明,该方法在检测攻击方面比现有方法更准确。
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引用次数: 10
期刊
2016 3rd International Conference on Advanced Computing and Communication Systems (ICACCS)
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