Research Conference of the South African Institute of Computer Scientists and Information Technologists最新文献_第4页

A Framework to Maximise the Communicative Power of Knowledge Visualisations 最大化知识可视化沟通能力的框架

Research Conference of the South African Institute of Computer Scientists and Information Technologists Pub Date : 2019-09-17 DOI: 10.1145/3351108.3351111

K. Renaud, J. V. Biljon

引用次数: 8

Age and Gender Estimation using Optimised Deep Networks 使用优化的深度网络估计年龄和性别

Research Conference of the South African Institute of Computer Scientists and Information Technologists Pub Date : 2019-09-17 DOI: 10.1145/3351108.3351123

W.John S. Downton, Hima Vadapalli

{"title":"Age and Gender Estimation using Optimised Deep Networks","authors":"W.John S. Downton, Hima Vadapalli","doi":"10.1145/3351108.3351123","DOIUrl":"https://doi.org/10.1145/3351108.3351123","url":null,"abstract":"Age and gender estimation plays a fundamental role in intelligent applications such as access control, marketing intelligence, human-computer interaction etc. The advent of deep architectures have paved a way to improve the performance of estimation models, however, there is still a lack of optimized architectures. This paper focuses on the use of convolutional neural networks, and parameter modeling and optimization, and their effect on accuracy and loss term convergence. This paper first makes use of a generalized deep architecture based on literature and looks at ways of optimizing and reducing complexity without loss of accuracy. Different activation functions such as rectified linear unit (ReLU), linear function, exponential linear unit (ELU), hyperbolic tangent and Googles' proposed Swish function were tested along with the use of additional convolutional and fully-connected layers. Experiments resulted in a less complex architecture for gender classification and results were in line with that of benchmark accuracies found in literature, however, the same couldn't be achieved for age estimation. The inability to find a simpler architecture for age estimation is attributed to the complex nature of features that are associated with age than that of gender and also the multi-class classification nature of the age estimation problem.","PeriodicalId":269578,"journal":{"name":"Research Conference of the South African Institute of Computer Scientists and Information Technologists","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133364799","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

Factors that Influence Information Technology Workers' Intention to Telework: A South African Perspective 影响信息技术工作者远程办公意向的因素:一个南非的视角

Research Conference of the South African Institute of Computer Scientists and Information Technologists Pub Date : 2019-09-17 DOI: 10.1145/3351108.3351141

Joseph Morrison, W. Chigona, D. Malanga

{"title":"Factors that Influence Information Technology Workers' Intention to Telework: A South African Perspective","authors":"Joseph Morrison, W. Chigona, D. Malanga","doi":"10.1145/3351108.3351141","DOIUrl":"https://doi.org/10.1145/3351108.3351141","url":null,"abstract":"This study investigated the factors that influence South African IT workers' intention to telework. Based on the Theory of Planned Behaviour (TPB), an explanatory research approach was followed with the objective of determining the influence of the TPB elements namely attitude, subjective norms and perceived behavioral control on IT workers' intention to adopt telework. The model was tested quantitatively by means of online survey, for which a total of 120 valid responses were received. The results showed that attitude and subjective norms did not significantly influence IT workers' intention to telework. Instead, perceived behavioral control of IT workers was found significant, which was determined by the availability and cost of the technology, the level of support from employers and the self-efficacy of IT workers. The cost of bandwidth was found a major inhibitors of telework amongst local IT workers. Therefore, addressing the technology and support challenges could improve the self-efficacy of workers with regards to working remotely. Employers should provide financial support to subsidize the high cost of bandwidth in South Africa. This study provides new insights regarding the status of IT workers' adoption of telework in South Africa, thereby contributing to policy and research practice.","PeriodicalId":269578,"journal":{"name":"Research Conference of the South African Institute of Computer Scientists and Information Technologists","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133926139","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: 9

Taking the Subjectivity out of UX Evaluation with Emotiv EPOC+ 用Emotiv EPOC+消解用户体验评价的主观性

Research Conference of the South African Institute of Computer Scientists and Information Technologists Pub Date : 2019-09-17 DOI: 10.1145/3351108.3351139

Manon Holman, F. Adebesin

引用次数: 3

From Digital Business Strategy to Digital Transformation - How: A Systematic Literature Review 从数字化商业战略到数字化转型——如何:系统的文献综述

Research Conference of the South African Institute of Computer Scientists and Information Technologists Pub Date : 2019-09-17 DOI: 10.1145/3351108.3351122

Nancy Brown, I. Brown

{"title":"From Digital Business Strategy to Digital Transformation - How: A Systematic Literature Review","authors":"Nancy Brown, I. Brown","doi":"10.1145/3351108.3351122","DOIUrl":"https://doi.org/10.1145/3351108.3351122","url":null,"abstract":"Digital transformation is a top priority in most organizations. It is a complex task that tackles the changes digital technologies can bring about in organisations. As such, it requires clarity of purpose, which can be achieved through having a firm digital business strategy. However, few studies explain how the two processes of digital business strategizing and digital transformation interrelate. The aim of this study is to identify the core concepts that link digital business strategy to digital transformation so as to improve understanding of their dynamic interaction and outcomes. Through a systematic literature review, it was shown that the fundamental concepts in the domain of study are digital technologies, digital business strategy, digital transformation strategy, digital transformation, digital leadership, business models, digital innovation, digital transparency and digital maturity. The key link between digital business strategy and digital transformation is a digital transformation strategy. A model is developed which shows the interrelationship of all these concepts.","PeriodicalId":269578,"journal":{"name":"Research Conference of the South African Institute of Computer Scientists and Information Technologists","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125306682","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: 24

An exploratory investigation of online and offline social behaviour among digital natives 数字原生代线上和线下社会行为的探索性调查

Research Conference of the South African Institute of Computer Scientists and Information Technologists Pub Date : 2019-09-03 DOI: 10.1145/3351108.3351146

Amy Broughton, M. Daly, Nickel-Jon Marx, Michael Nieuwoudt, D. Roux, D. Parry

{"title":"An exploratory investigation of online and offline social behaviour among digital natives","authors":"Amy Broughton, M. Daly, Nickel-Jon Marx, Michael Nieuwoudt, D. Roux, D. Parry","doi":"10.1145/3351108.3351146","DOIUrl":"https://doi.org/10.1145/3351108.3351146","url":null,"abstract":"In response to calls for IS researchers to investigate how digital natives are using information and communication technologies to shape their interpersonal interactions, an exploratory, survey-based study was conducted to investigate patterns of online social behaviour on two popular SNSs (Facebook and Instagram) and, on this basis, compare their online and offline social behaviour. To capture online social behaviour a novel typology involving three high-level interactions --- producing, consuming, and reacting--- was proposed. The investigation found that, among digital natives, Instagram is used more frequently than Facebook, with consumptive behaviour on Instagram occurring most frequently, and productive behaviour on Facebook occurring least frequently. While online social behaviour was found to positively relate to offline socialisation, personality traits were found to account for a larger proportion of the variance in offline social behaviour than online actions. The findings are of particular relevance to those seeking to understand associations between behaviour online and behaviour offline. Moreover, the typology introduced is likely to be useful in a variety of contexts.","PeriodicalId":269578,"journal":{"name":"Research Conference of the South African Institute of Computer Scientists and Information Technologists","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128507396","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: 4

Investigating the effects various compilers have on the electromagnetic signature of a cryptographic executable 研究各种编译器对加密可执行文件的电磁签名的影响

Research Conference of the South African Institute of Computer Scientists and Information Technologists Pub Date : 2017-09-26 DOI: 10.1145/3129416.3129436

I. Frieslaar, B. Irwin

{"title":"Investigating the effects various compilers have on the electromagnetic signature of a cryptographic executable","authors":"I. Frieslaar, B. Irwin","doi":"10.1145/3129416.3129436","DOIUrl":"https://doi.org/10.1145/3129416.3129436","url":null,"abstract":"This research investigates changes in the electromagnetic (EM) signatures of a cryptographic binary executable based on compile-time parameters to the GNU and clang compilers. The source code was compiled and executed on a Raspberry Pi 2, which utilizes the ARMv7 CPU. Various optimization flags are enabled at compile-time and the output of the binary executable's EM signatures are captured at run-time. It is demonstrated that GNU and clang compilers produced different EM signature on program execution. The results indicated while utilizing the O3 optimization flag, the EM signature of the program changes. Additionally, the g++ compiler demonstrated fewer instructions were required to run the executable; this related to fewer EM emissions leaked. The EM data from the various compilers under different optimization levels was used as input data for a correlation power analysis attack. The results indicated that partial AES-128 encryption keys was possible. In addition, the fewest subkeys recovered was when the clang compiler was used with level O2 optimization. Finally, the research was able to recover 15 of 16 AES-128 cryptographic algorithm's subkeys, from the the Pi.","PeriodicalId":269578,"journal":{"name":"Research Conference of the South African Institute of Computer Scientists and Information Technologists","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127297513","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

Organizational interventions to build the ERP business process analyst: the 4I framework perspective 构建ERP业务流程分析师的组织干预:4I框架视角

Research Conference of the South African Institute of Computer Scientists and Information Technologists Pub Date : 2017-09-26 DOI: 10.1145/3129416.3131471

Elizabeth Wamicha, Lisa F. Seymour

{"title":"Organizational interventions to build the ERP business process analyst: the 4I framework perspective","authors":"Elizabeth Wamicha, Lisa F. Seymour","doi":"10.1145/3129416.3131471","DOIUrl":"https://doi.org/10.1145/3129416.3131471","url":null,"abstract":"Enterprise Resource Planning (ERP) implementations are increasing in most countries in the African continent and in Kenya in particular. Large, medium and small businesses in the country are making significant investments in these enterprise system (ES) implementations. This has given rise to the need for new roles within ES environments, most notably the Business Process Analyst (BPA). The BPA plays a critical role in understanding business processes of the organization. This is a critical requirement for any ES implementation. In this regard, the BPA competence requirements to implement and manage these ES implementations are not clear yet. More so, there is a lack of clarity regarding the interventions and interactions required to build critical competencies in entry level BPAs enabling them to move towards becoming fully fledged and experienced BPAs. To address this gap, this qualitative study focusing on the Kenyan context, utilizes the 4I framework of organizational learning to describe interventions and interactions that organizations use to build the required BPA competencies.","PeriodicalId":269578,"journal":{"name":"Research Conference of the South African Institute of Computer Scientists and Information Technologists","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123297453","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

Actor-network theory in IS research: critique on application of the principle of generalized symmetry 行动者网络理论在信息系统研究中的应用:对广义对称原理的批判

Research Conference of the South African Institute of Computer Scientists and Information Technologists Pub Date : 2017-09-26 DOI: 10.1145/3129416.3129448

J. K. Mwenya, I. Brown

{"title":"Actor-network theory in IS research: critique on application of the principle of generalized symmetry","authors":"J. K. Mwenya, I. Brown","doi":"10.1145/3129416.3129448","DOIUrl":"https://doi.org/10.1145/3129416.3129448","url":null,"abstract":"Actor-network theory (ANT) has been gaining popularity as a guiding theoretical apparatus in Information Systems (IS) research, notably research involving IS projects as such projects are seen as assemblages of people, technologies, project documents, methodologies, and other actors. A key tenet of ANT is generalized symmetry, which advocates that human and material actors be viewed on the same analytic plane. A persistent critique of ANT-based IS research is that researchers employing ANT routinely fail to uphold the ideal of generalized symmetry. Critics often point out that many ANT-based IS research accounts (whether consciously or unconsciously) privilege humans as the dominant actors in actor-networks, while paying lip-service to the idea of generalized symmetry for all actors. This paper contributes toward understanding the underlying issues of this critique by assessing the current level of compliance to ANT's principle of generalized symmetry in ANT-based IS research. Using a hermeneutic literature review approach, we investigate how the main constructs, principles, practices and techniques of the full apparatus of ANT have been identified, applied and documented in recent ANT-based IS research studies as reported in the extant literature. This review provides an updated and refreshed understanding of the current level to which ANT's principle of generalized symmetry is upheld in ANT-based IS research.","PeriodicalId":269578,"journal":{"name":"Research Conference of the South African Institute of Computer Scientists and Information Technologists","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122972843","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: 4

S-NAR: generating narrations of SQL queries using regular expressions S-NAR:使用正则表达式生成SQL查询的叙述

Research Conference of the South African Institute of Computer Scientists and Information Technologists Pub Date : 2017-09-26 DOI: 10.1145/3129416.3129454

Abejide Ade-Ibijola, George Obaido

引用次数: 6