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Kernel principal component analysis for multimedia retrieval 多媒体检索的核主成分分析
Global Journal on Technology Pub Date : 2016-03-15 DOI: 10.18844/GJIT.V6I1.384
Guang-Ho Cha
{"title":"Kernel principal component analysis for multimedia retrieval","authors":"Guang-Ho Cha","doi":"10.18844/GJIT.V6I1.384","DOIUrl":"https://doi.org/10.18844/GJIT.V6I1.384","url":null,"abstract":"Principal component analysis (PCA) is an important tool in many areas including data reduction and interpretation, information retrieval, image processing, and so on. Kernel PCA has recently been proposed as a nonlinear extension of the popular PCA. The basic idea is to first map the input space into a feature space via a nonlinear map and then compute the principal components in that feature space. This paper illustrates the potential of kernel PCA for dimensionality reduction and feature extraction in multimedia retrieval. By the use of Gaussian kernels, the principal components were computed in the feature space of an image data set and they are used as new dimensions to approximate image features. Extensive experimental results show that kernel PCA performs better than linear PCA with respect to the retrieval quality as well as the retrieval precision in content-based image retrievals.","PeriodicalId":415182,"journal":{"name":"Global Journal on Technology","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127814158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The effects of problem based learning on cognitive flexibility, self-regulation skills and students’ achievements 基于问题的学习对认知灵活性、自我调节技能和学生成绩的影响
Global Journal on Technology Pub Date : 2016-03-15 DOI: 10.18844/GJIT.V6I1.394
Özge Yucel, D. Karahoca, A. Karahoca
{"title":"The effects of problem based learning on cognitive flexibility, self-regulation skills and students’ achievements","authors":"Özge Yucel, D. Karahoca, A. Karahoca","doi":"10.18844/GJIT.V6I1.394","DOIUrl":"https://doi.org/10.18844/GJIT.V6I1.394","url":null,"abstract":"The purpose of this study is to specify the effects of cognitive flexibility and self-regulation skills on students’ achievements in web mediated problem based programming language learning towards gender and class groups. Self-regulation skills towards web based programming language education is discussed under three dimensions; learning skills, learning strategies and self-efficacy. Level of cognitive flexibility is reviewed by comparison of time and percentage of success. Causal-comparative research model is used in this study where five different class groups are compared in. Furthermore, a web based problem was given to this students and their success is calculates as the grades that they get from each step. As a result, this paper indicates that when the correlation between level of cognitive flexibility and students’ achievements is taken under consideration it is seen that there is a positive linear relationship between them. It can be said that students who have higher cognitive flexibility level also have advanced problem solving skills.","PeriodicalId":415182,"journal":{"name":"Global Journal on Technology","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122149972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 10
Project based learning approach in pedagogical agent assisted learning environment 教学代理辅助学习环境下基于项目的学习方法
Global Journal on Technology Pub Date : 2016-03-15 DOI: 10.18844/GJIT.V6I1.389
Efsun Karaca, D. Karahoca, A. Karahoca
{"title":"Project based learning approach in pedagogical agent assisted learning environment","authors":"Efsun Karaca, D. Karahoca, A. Karahoca","doi":"10.18844/GJIT.V6I1.389","DOIUrl":"https://doi.org/10.18844/GJIT.V6I1.389","url":null,"abstract":"Since many of project based learning (PBL) cases performed in Science & Mathematics fields, the purpose of this study is to specify the contributions of developing computer assisted project for the teaching process in Human Computer Interaction (HCI) course teaching with the support of pedagogical agent assisted learning environment. This study attempts to examine the effects of PBL approach in pedagogical agent assisted learning environment on students' attitudes and achievements in human computer interaction (HCI) course. Project-Based Learning Attitude Scale, Pedagogical Agent Satisfaction Survey and Perception of Course Content Attitude Scale were applied to students in order to determine the students' achievements in and attitudes towards the activities of pedagogical agent assisted PBL approach. Furthermore, review tests were applied twice as pre-test and post-test before and after the pedagogical agent assisted learning. As a result, the paper indicates that pedagogical agent assisted PBL approach affects students' achievements and attitudes in HCI course in a good way.","PeriodicalId":415182,"journal":{"name":"Global Journal on Technology","volume":"241 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124379191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
GJIT December 2015 Index GJIT 2015年12月指数
Global Journal on Technology Pub Date : 2016-01-11 DOI: 10.18844/GJIT.V5I2.224.G452
A. Karahoca
{"title":"GJIT December 2015 Index","authors":"A. Karahoca","doi":"10.18844/GJIT.V5I2.224.G452","DOIUrl":"https://doi.org/10.18844/GJIT.V5I2.224.G452","url":null,"abstract":"","PeriodicalId":415182,"journal":{"name":"Global Journal on Technology","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133567751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
GJIT December 2015 Referre Index
Global Journal on Technology Pub Date : 2016-01-11 DOI: 10.18844/gjit.v5i2.223
A. Karahoca
{"title":"GJIT December 2015 Referre Index","authors":"A. Karahoca","doi":"10.18844/gjit.v5i2.223","DOIUrl":"https://doi.org/10.18844/gjit.v5i2.223","url":null,"abstract":"","PeriodicalId":415182,"journal":{"name":"Global Journal on Technology","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125570745","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Penetration testing on cloud---case study with owncloud 云上的渗透测试——以owncloud为例
Global Journal on Technology Pub Date : 2016-01-05 DOI: 10.18844/GJIT.V5I2.198
Wenjuan Xu, Brian Groves, W. Kwok
{"title":"Penetration testing on cloud---case study with owncloud","authors":"Wenjuan Xu, Brian Groves, W. Kwok","doi":"10.18844/GJIT.V5I2.198","DOIUrl":"https://doi.org/10.18844/GJIT.V5I2.198","url":null,"abstract":"The cloud computing techniques bring different security challenges. In this paper, we set up ownCloud as the example cloud computing infrastructure. Then we present our work process and results of a series of penetration testing performed on the ownCloud.  We also analyse these results and give key recommendations for addressing the identified vulnerabilities.  Keywords: cloud computing, security, penetration tesing, owncloud","PeriodicalId":415182,"journal":{"name":"Global Journal on Technology","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131098814","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
The characteristics of applying computer technologies in the process of musical education 计算机技术在音乐教学过程中的应用特点
Global Journal on Technology Pub Date : 2016-01-05 DOI: 10.18844/GJIT.V5I2.199
Jolanta Abramauskienė
{"title":"The characteristics of applying computer technologies in the process of musical education","authors":"Jolanta Abramauskienė","doi":"10.18844/GJIT.V5I2.199","DOIUrl":"https://doi.org/10.18844/GJIT.V5I2.199","url":null,"abstract":"On the basis of research material analysis the paper aims to determine the changes happening in music education, which were brought about by the application of computer technologies. The possible trends of applying computer technologies in musical education are analyzed. The changes in the society and the development of computer technologies promote a new approach to the process of musical education. The use of computer technologies in the process of musical education presents new opportunities: music can be recorded, created, it is possible to ply different instruments, learn the theory of music, develop one‘s hearing, search for new information by means of the internet resources. Computer technologies is significant for the professional competences of the trainee teachers of music and can complement tne training of teachers of music. The article presents the analysis of the future teachers’ attitudes to the application of computer technologies in musical education and highlights the characteristics of computer technologies use. The results of the survey demonstrate that there appear aspects of using computer technologies in the education process that need to be improved. Hence, it is important to look for ways to convey the knowledge of music and skills more efficiently.","PeriodicalId":415182,"journal":{"name":"Global Journal on Technology","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117195097","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Information technology in the banking sector: Review of mobile banking 银行业的信息技术:手机银行的回顾
Global Journal on Technology Pub Date : 2016-01-05 DOI: 10.18844/GJIT.V5I2.196
Nadire Cavus, Dambudzo Netsai Chingoka Christina
{"title":"Information technology in the banking sector: Review of mobile banking","authors":"Nadire Cavus, Dambudzo Netsai Chingoka Christina","doi":"10.18844/GJIT.V5I2.196","DOIUrl":"https://doi.org/10.18844/GJIT.V5I2.196","url":null,"abstract":"This paper is written to state the advantages and disadvantages, the different models to test the effects of individual’s intention to adopt mobile banking, the different technologies that are being implemented currently by banks and what the future holds for mobile banking. Information Technology (IT) has evolved over time and has changed the way business is conducted. The way people conduct business has been made easier and more efficient. IT has opened many doors for new technologies that are used within business and for individual use; the Banking sector is of no exception. Mobile banking is the fastest growing channel of banking as a result few people are walking into bank branches nowadays. Banks now need to remain relevant by catering to the needs and expectations of the customers and to the technology advancements. By providing better services and products customers are able to utilise. The role of IT in the banking sector can be divided into two categories: Communication and connectivity, and individual and business transactions. IT enables for sophisticated products to be developed with better frameworks, execution of dependable strategies and help with communication so to connect with people from different countries, businesses across the globe, geographical distance and diverse markets.   Keywords: mobile banking, information technology, it, mobile banking adoption, mobile banking application, mobile payment","PeriodicalId":415182,"journal":{"name":"Global Journal on Technology","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114303264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 19
Message from editor 编辑留言
Global Journal on Technology Pub Date : 2016-01-05 DOI: 10.18844/gjit.v5i2.201
D. Ibrahim
{"title":"Message from editor","authors":"D. Ibrahim","doi":"10.18844/gjit.v5i2.201","DOIUrl":"https://doi.org/10.18844/gjit.v5i2.201","url":null,"abstract":"It is the great honor for us to publish fifth issue of Global Journal of Information Technology. Global Journal of Information Technology (GJIT) seeks to encourage academically robust papers, research, critical reviews and opinions on the organisational, social and management issues associated with significant information-based technologies. GJIT focuses on contemporary research addressing Information Technology including strategy, change, infrastructure, human resources, sourcing, system development and implementation, communications, technology developments, technology futures, national policies and standards. It also publishes articles that advance our understanding and application of research approaches and methods covering information technology, its evolution and future prospects. IT in banking sector, onilne learning community, testing on cloud, IT in muscial education have been included into this issue. The topics of the next issue will be different. You can make sure that we will be trying to serve you with our journal with a rich knowledge in which different kinds of topics are discussed in 2015 Volume. A total of ten (10) manuscripts were submitted for this issue and each paper has been rigor peer reviewed by the reviewers specialized in the related field. At the end of the review process, a total of five (5) high quality research papers were selected and accepted for publication. We thank all the contributors who helped us to publish this issue.  Best regard, Prof. Dr. Dogan Ibrahim,  Editor – in Chief","PeriodicalId":415182,"journal":{"name":"Global Journal on Technology","volume":"362 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132654946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Online learning community software to support success in project teams 在线学习社区软件支持项目团队的成功
Global Journal on Technology Pub Date : 2016-01-05 DOI: 10.18844/GJIT.V5I2.197
Brian Thoms
{"title":"Online learning community software to support success in project teams","authors":"Brian Thoms","doi":"10.18844/GJIT.V5I2.197","DOIUrl":"https://doi.org/10.18844/GJIT.V5I2.197","url":null,"abstract":"In this research we explore aspects of social interaction and community as they relate to success in project-based courses. Using specialized online community software consisting of social networking technologies and project-based wikis, project teams are able to collaborate and interact as they progress towards project milestones. Our study underscores the importance of sustained engagement as a means for fostering high levels of community and how these levels relate to project motivation and, ultimately, project success. Guided by a theoretical model that explains how individuals collaborate within online communities, we measure member perceptions of the software before and after our intervention. Survey results found that online learning community (OLC) software can successfully support learning and social interaction. These results are supported by a social network analysis (SNA), which shows high levels of individual engagement across the project lifecycle.  Keywords: social networking, online learning community, wiki, project management, capstone project.","PeriodicalId":415182,"journal":{"name":"Global Journal on Technology","volume":"263 6‐10","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120838662","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
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