Alan Colman
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View article: A nonlinear feedback control approach for differentiated performance management in autonomic systems
A nonlinear feedback control approach for differentiated performance management in autonomic systems Open
Management of Quality of Service (QoS) performance and resources at runtime is much researched area. In particular, when there are different classes requiring different levels of QoS guarantees raise many research challenges. The relative/…
View article: An adaptive architecture for context-aware interaction in pervasive applications
An adaptive architecture for context-aware interaction in pervasive applications Open
Adaptation is one of the key challenges in pervasive computing. Context-aware applications need to respond to dynamic physical and computing environments. In this paper, we propose an adaptive architecture for context-aware pervasive syste…
View article: Role oriented adaptive design
Role oriented adaptive design Open
Software systems are becoming inexorably more open, distributed, pervasive, mobile and connected. This thesis addresses the problem of how to build adaptive software systems. These systems need to reliably achieve system-level goals in vol…
View article: An approach to specifying and validating context-aware adaptive behaviours of software systems
An approach to specifying and validating context-aware adaptive behaviours of software systems Open
Context-aware adaptive software systems need to have models for their adaptive behaviour. These models specify systems' reactions to cbanges in their environments. In large scale software systems with high variability, an explosion in the …
View article: Organisational abstractions for adaptive systems
Organisational abstractions for adaptive systems Open
Computing environments are becoming more open, distributed and pervasive. The software we build for these dynamic environments will need to become more adaptable and adaptive. This paper introduces a methodology based on ontogenic adaptati…
View article: The implementation of message synchronisation, queuing and allocation in the ROAD framework
The implementation of message synchronisation, queuing and allocation in the ROAD framework Open
In a dynamic environment where requirements change and components' performance varies, the system should be able to configure its internal structure in order to maintain the overall satisfactory output. An approach to this adaptability has…
View article: Adaptive service-oriented systems: An organisational approach
Adaptive service-oriented systems: An organisational approach Open
The relationships between the loosely coupled services of a composition can be non-deterministic and unreliable. This requires that a composite application has the ability to adaptively reconfigure itself to continuously satisfy the system…
View article: Organizational roles and players
Organizational roles and players Open
This paper discusses the characteristics of organizational roles. We point out differences between the concept of a role as it is commonly used in software development, and the concept of a role as it is implemented in an organization. Rol…
View article: A study on managing the performance and resources of a business process engine using nonlinear and switching control systems
A study on managing the performance and resources of a business process engine using nonlinear and switching control systems Open
This technical report presents the experiment results of the a case study conducted on a business process server applying the nonlinear and switching control system design approaches given in [1, 2]. Here, we introduce the business scenari…
View article: Can tools reduce the costs of developing control engineering-based self-adaptive systems?
Can tools reduce the costs of developing control engineering-based self-adaptive systems? Open
Many self-adaptive techniques primarily based on control engineering methods have been proposed for different software system in the literature. These works only evaluate the self-adaptive capabilities of the proposed control solution, but…
View article: Isogenic Human-Induced Pluripotent Stem-Cell-Derived Cardiomyocytes Reveal Activation of Wnt Signaling Pathways Underlying Intrinsic Cardiac Abnormalities in Rett Syndrome
Isogenic Human-Induced Pluripotent Stem-Cell-Derived Cardiomyocytes Reveal Activation of Wnt Signaling Pathways Underlying Intrinsic Cardiac Abnormalities in Rett Syndrome Open
Rett syndrome (RTT) is a severe neurodevelopmental disorder caused by MeCP2 mutations. Nonetheless, the pathophysiological roles of MeCP2 mutations in the etiology of intrinsic cardiac abnormality and sudden death remain unclear. In this s…
View article: WikiServe: Using Wikipedia to Match IoT based Services for Situation Response
WikiServe: Using Wikipedia to Match IoT based Services for Situation Response Open
A large number of smart devices (things) are being deployed with the swift development of Internet of Things (IOT). These devices, owned by different organizations, have a wide variety of services to offer over the web. During a natural di…
View article: WikiServe: Using Wikipedia to Match IoT based Services for Situation Response
WikiServe: Using Wikipedia to Match IoT based Services for Situation Response Open
A large number of smart devices (things) are being deployed with the swift development of Inter- net of Things (IOT). These devices, owned by different organizations, have a wide variety of services to offer over the web. During a natural …
View article: Blockchain Consensus Algorithms: A Survey
Blockchain Consensus Algorithms: A Survey Open
In recent years, blockchain technology has received unparalleled attention from academia, industry, and governments all around the world. It is considered a technological breakthrough anticipated to disrupt several application domains. Thi…
View article: Blockchain Consensuses Algorithms: A Survey.
Blockchain Consensuses Algorithms: A Survey. Open
In recent years, blockchain technology has received unparalleled attention from academia, industry, and governments all around the world. It is considered a technological breakthrough anticipated to disrupt several application domains. Thi…
View article: CalBehav: A Machine Learning-Based Personalized Calendar Behavioral Model Using Time-Series Smartphone Data
CalBehav: A Machine Learning-Based Personalized Calendar Behavioral Model Using Time-Series Smartphone Data Open
The electronic calendar is a valuable resource nowadays for managing our daily life appointments or schedules, also known as events, ranging from professional to highly personal. Researchers have studied various types of calendar events to…
View article: SDSN@RT: A middleware environment for single‐instance multitenant cloud applications
SDSN@RT: A middleware environment for single‐instance multitenant cloud applications Open
Summary With the single‐instance multitenancy (SIMT) model for composite Software‐as‐a‐Service (SaaS) applications, a single composite application instance can host multiple tenants, yielding the benefits of better service and resource uti…
View article: Individualized Time-Series Segmentation for Mining Mobile Phone User Behavior
Individualized Time-Series Segmentation for Mining Mobile Phone User Behavior Open
Mobile phones can record individual's daily behavioral data as a time-series. In this paper, we present an effective time-series segmentation technique that extracts optimal time segments of individual's similar behavioral characteristics …
View article: A Policy Framework for Subject-Driven Data Sharing
A Policy Framework for Subject-Driven Data Sharing Open
Organizations (e.g., hospitals, university etc.) are custodians of data on their clients and use this information to improve their service. Personal data of an individual therefore ends up hosted under the administration of different data …
View article: Identifying Recent Behavioral Data Length in Mobile Phone Log
Identifying Recent Behavioral Data Length in Mobile Phone Log Open
Mobile phone log data (e.g., phone call log) is not static as it is progressively added to day-by-day according to individ- ual's diverse behaviors with mobile phones. Since human behavior changes over time, the most recent pattern is more…
View article: An Improved Naive Bayes Classifier-based Noise Detection Technique for Classifying User Phone Call Behavior
An Improved Naive Bayes Classifier-based Noise Detection Technique for Classifying User Phone Call Behavior Open
The presence of noisy instances in mobile phone data is a fundamental issue for classifying user phone call behavior (i.e., accept, reject, missed and outgoing), with many potential negative consequences. The classification accuracy may de…
View article: Designing architecture of a rule-based system for managing phone call interruptions
Designing architecture of a rule-based system for managing phone call interruptions Open
Now-a-days, mobile phones are considered to be "always on, always connected" but mobile phone users are not always attentive and responsive to incoming phone calls. Incoming call notifications such as ringing at an inopportune moment (e.g.…
View article: Understanding recency-based behavior model for individual mobile phone users
Understanding recency-based behavior model for individual mobile phone users Open
Mobile phone log data is not static as it is progressively added to day-by-day according to individual's behavior. The goal of this position paper is to highlight the issues of traditional behavior modeling utilizing phone log data and to …
View article: A Policy Model and Framework for Context-Aware Access Control to Information Resources
A Policy Model and Framework for Context-Aware Access Control to Information Resources Open
In today's dynamic ICT environments, the ability to control users' access to resources becomes ever important. On the one hand, it should adapt to the users' changing needs; on the other hand, it should not be compromised. Therefore, it is…
View article: Amelioration of X-Linked Related Autophagy Failure in Danon Disease With DNA Methylation Inhibitor
Amelioration of X-Linked Related Autophagy Failure in Danon Disease With DNA Methylation Inhibitor Open
Background: Danon disease is an X-linked disorder that leads to fatal cardiomyopathy caused by a deficiency in lysosome-associated membrane protein-2 (LAMP2). In female patients, a later onset and less severe clinical phenotype have been a…
View article: Chondrocytes Derived From Mesenchymal Stromal Cells and Induced Pluripotent Cells of Patients With Familial Osteochondritis Dissecans Exhibit an Endoplasmic Reticulum Stress Response and Defective Matrix Assembly
Chondrocytes Derived From Mesenchymal Stromal Cells and Induced Pluripotent Cells of Patients With Familial Osteochondritis Dissecans Exhibit an Endoplasmic Reticulum Stress Response and Defective Matrix Assembly Open
Familial osteochondritis dissecans (FOCD) is an inherited skeletal defect characterized by the development of large cartilage lesions in multiple joints, short stature, and early onset of severe osteoarthritis. It is associated with a hete…