Understanding the neural dynamics underlying the fast discrimination of music and speech in noise is a very challenging task for neurocomputational and speech recognition models. In this paper, we present a model of i...
详细信息
The need for educating future software engineers in the field of global software engineering is recognized by many educational institutions. In this paper we outline the characteristics of an existing global software ...
详细信息
ISBN:
(纸本)9781467310673
The need for educating future software engineers in the field of global software engineering is recognized by many educational institutions. In this paper we outline the characteristics of an existing global software development course run over a period of nine years, and present a flexible project framework for conducting student projects in a distributed environment. Based on data collected from fourteen distributed student projects, a set of collaboration patterns is identified and their causes and implications described. Collaboration patterns are a result of the analysis of collaboration links within distributed student teams, and can assist teachers in better understanding of the dynamics found in distributed projects.
Supervised learning is a popular approach to text classification among the research community as well as within software development industry. It enables intelligent systems to solve various text analysis problems suc...
详细信息
Supervised learning is a popular approach to text classification among the research community as well as within software development industry. It enables intelligent systems to solve various text analysis problems such as document organization, spam detection and report scoring. However, the extremely difficult and time intensive process of creating a training corpus makes it inapplicable to many text classification problems. In this research, we explored the opportunities of addressing this pitfall by studying the ontological characteristics of document categories and grouping them under virtual super-categories to narrow down the search for a suitable category. Applying this method showed that classifier performance has greatly improved despite the relatively small size of the training corpus.
Security is primarily concerned with protecting assets from harm. Identifying and evaluating assets are therefore key activities in any security engineering process - from modeling threats and attacks, discovering exi...
详细信息
Security is primarily concerned with protecting assets from harm. Identifying and evaluating assets are therefore key activities in any security engineering process - from modeling threats and attacks, discovering existing vulnerabilities, to selecting appropriate countermeasures. However, despite their crucial role, assets are often neglected during the development of secure software systems. Indeed, many systems are designed with fixed security boundaries and assumptions, without the possibility to adapt when assets change unexpectedly, new threats arise, or undiscovered vulnerabilities are revealed. To handle such changes, systems must be capable of dynamically enabling different security countermeasures. This paper promotes assets as first-class entities in engineering secure software systems. An asset model is related to requirements, expressed through a goal model, and the objectives of an attacker, expressed through a threat model. These models are then used as input to build a causal network to analyze system security in different situations, and to enable, when necessary, a set of countermeasures to mitigate security threats. The causal network is conceived as a runtime entity that tracks relevant changes that may arise at runtime, and enables a new set of countermeasures. We illustrate and evaluate our proposed approach by applying it to a substantive example concerned with security of mobile phones.
The aim of this investigation was to understand the localised failure behaviour of diamond like carbon (DLC) thin film during multiple-cycle repeating nanoindentation. The film investigated was 100 nm and 500 nm thick...
详细信息
The most effective setting for training in Global Software engineering is to provide a distributed environment for students. In such an environment, students will meet challenges in recognizing problems first-hand. Te...
详细信息
ISBN:
(纸本)9781467310673
The most effective setting for training in Global Software engineering is to provide a distributed environment for students. In such an environment, students will meet challenges in recognizing problems first-hand. Teaching in a distributed environment is, however, very demanding, challenging and unpredictable compared to teaching in a local environment. Based on nine years of experience, in this paper we present the most important issues that should be taken into consideration to increase the probability of success in teaching a Global Software engineering course.
Students and teachers do not necessarily have the same understanding of a course - of the purpose, the objective, and in particular of the course elements - the way the course is performed, the examination procedure, ...
详细信息
Students and teachers do not necessarily have the same understanding of a course - of the purpose, the objective, and in particular of the course elements - the way the course is performed, the examination procedure, and similar. In distributed-development courses, in which students and teachers are dispersed over different locations, this difference can be larger than in “ordinary” courses, but also less visible, due to limited communication. In this paper we discuss these different perspectives, their rationales, possible consequences on the course performance and on the result, as well as lessons learned from students' feedback.
Fabrication of both p-type and n-type cupric oxide is of great importance for the large-scale photovoltaic application. Our first-principles density functional theory calculations confirm that copper vacancy can lead ...
详细信息
This paper explains about how lawyers retrieve information in the process of legal research and reasoning. CALLS (Computer Aided Legal Support System), is a reasoning method for determining similar cases by executing ...
详细信息
This paper explains about how lawyers retrieve information in the process of legal research and reasoning. CALLS (Computer Aided Legal Support System), is a reasoning method for determining similar cases by executing a case-similarity calculation step and utilizing a distribution of values of fields for calculation of reasoning results of cases having high similarities. Since the similar cases are determined taking a peripheral distribution of a new case into consideration, suitable similar cases can be selected for reasoning even when the case distribution is not uniform. we have implemented a web based Case-Based Reasoning (CBR) legal support system that generates a query to the legal support system by using information derived from CBR analysis of a problem situation. The query is automatically formed by submitting in text form a set of highly relevant cases, based on a CBR analysis, to a case base relevance feedback module. This approach extends the reach of CBR, for retrieval purposes, to much larger corpora and injects knowledge-based techniques into case base retrieval system. The main objective of the paper is to explain the analysis design, prototype implementation and validation method of computer assisted legal support system. Current working system is implemented in PhP with MySql;still work is under process by adding more cases to improve the performance of the system.
In the UK, domestic buildings are responsible for a significant amount of overall carbon emissions from buildings. Together with improving the energy efficiency of the existing domestic stock, an in-depth understandin...
详细信息
In the UK, domestic buildings are responsible for a significant amount of overall carbon emissions from buildings. Together with improving the energy efficiency of the existing domestic stock, an in-depth understanding of thermal comfort in homes is necessary to ensure that acceptable levels of thermal comfort are maintained whilst energy use is being reduced. Currently, there is limited knowledge on domestic thermal comfort in the UK as, compared to non-domestic buildings, conducting thermal comfort studies in homes is challenging. Detailed thermal comfort studies are usually considered to be intrusive in domestic environments. Is it therefore possible to conduct thermal comfort studies that are less intrusive and yet scientifically rigorous With a view to address this question, the study presented in this paper undertook a comparison of two data collection methods. Data collected using a less-intrusive method, referred to as the 'Silver standard' was compared with the data collected using the ASHRAE/ISO recommended method (referred to as the 'Gold standard'). A strong correlation was observed between PMV values obtained using the Silver Standard method and those obtained using the Gold Standard method. The findings suggest that the less-intrusive method devised and tested in this study provides reliable data for thermal comfort evaluations in homes. The findings also suggest that further work is necessary, particularly in winter conditions to comprehensively validate this non-intrusive method.
暂无评论