Smart e-Learning Systems with Big Data

Nowadays, the Internet connects people, multimedia and physical objects leading to a new-wave of services. This includes learning applications, which require to manage huge and mixed volumes of information coming from Web and social media, smart-cities and Internet of Things nodes. Unfortunately, designing smart e-learning systems able to take advantage of such a complex technological space raises different challenges. In this perspective, this paper introduces a reference architecture for the development of future and big-data-capable e-learning platforms. Also, it showcases how data can be used to enrich the learning process

RBPMN: A role-based BPMN for integrating structure and behavior models

Digitalization transforms business processes substantially due to increasing customer demands for flexibility, new technologies (e.g., Intelligent Technologies) and emerging markets. Business process models are used to understand current processes and provide guidance for process improvements. A role-based extension of the de-facto standard business process modeling language BPMN is proposed that can support the business transformation and other modeling challenges. Bachmann and Daya (1977) introduced roles, which provide the basis for the extension. Steimann (2000) and Kühn (2017) increased the understanding of roles and provided an overview of roles' versatility. This work incorporates roles in business process modeling, thereby closing the gap between structural and behavioral modeling.:Contents List of figures II List of tables III 1 Introduction 1 2 Background 1 3 Business Process Modeling Challenges 3 3.1 Variety of Performers 3 3.2 Adaptability 4 3.3 Context-Awareness 4 4 Proposing Roles as a Solution 5 5 The Role-based Business Process Model and Notation 7 5.1 BPMN Extension Mechanism 8 5.2 Composition of Roles in a Business Process 9 5.2.1 Active Roles 9 5.2.2 Passive Roles 9 5.3 Connector Elements 10 5.3.1 Role Prohibition 10 5.3.2 Role Inheritance 10 5.3.3 Role Condition 10 5.4 Location Role 10 5.5 Role Start Event 10 5.6 Gateways 11 5.7 RBPMN Syntax 11 5.8 Process Role Hierarchy 12 6 Role-Feature Integration 12 7 Modeling Case Study 14 8 Discussion 16 9 Conclusion 17 10 Acknowledgments 18 References I

Web application for energy system integration

This bachelor thesis describes the development of a web application that allows users to configure and save simulations for an energy system. The application utilizes a pre-existing simulator pack to generate real-time results, which are displayed to the user in chart form. The development stack includes Sveltekit, FastAPI, and GraphQL, with the latter used to retrieve and display data. The application features a login system and user-specific configuration options, enabling users to tailor simulations to their needs. The system is built to be scalable and easy-to-implement new features such as a better system for storage and automated test. The team focused on long term for this project and made sure it would be easy for other people to work on it later. The resulting application provides an efficient and user-friendly means of simulating energy systems, with potential applications in both research and industr

Web application for energy system

This bachelor thesis describes the development of a web application that allows users to configure and save simulations for an energy system. The application utilizes a pre-existing simulator pack to generate real-time results, which are displayed to the user in chart form. The development stack includes Sveltekit, FastAPI, and GraphQL, with the latter used to retrieve and display data. The application features a login system and user-specific configuration options, enabling users to tailor simulations to their needs. The system is built to be scalable and easy-to-implement new features such as a better system for storage and automated test. The team focused on long term for this project and made sure it would be easy for other people to work on it later. The resulting application provides an efficient and user-friendly means of simulating energy systems, with potential applications in both research and industry

Web application for energy system integration

This bachelor thesis describes the development of a web application that allows users to configure and save simulations for an energy system. The application utilizes a pre-existing simulator pack to generate real-time results, which are displayed to the user in chart form. The development stack includes Sveltekit, FastAPI, and GraphQL, with the latter used to retrieve and display data. The application features a login system and user-specific configuration options, enabling users to tailor simulations to their needs. The system is built to be scalable and easy-to-implement new features such as a better system for storage and automated test. The team focused on long term for this project and made sure it would be easy for other people to work on it later. The resulting application provides an efficient and user-friendly means of simulating energy systems, with potential applications in both research and industry

Using location-based services to improve mental health interventions

Dissertation submitted in partial fulfilment of the requirements for the degree of Master of Science in Geospatial TechnologiesThe rapid developments in the functionalities of smartphones and technological innovations play a vital role in providing location-based services in healthcare. A mental health sensor-based software platform has been developed by the Geospatial Technologies research group (Geotec), consisting of an application generation framework that offers basic geospatial building blocks (location tracking, trajectory recording, geo-fencing), communication building blocks (notifications) and a basic visualization of collected data for therapists. The framework has been successfully tested for building an application to treat agoraphobia, addiction, and depression, using location-based notifications. However, defining the places of interest for a patient is addressed to a limited extent only. Thus, therapists have difficulties of identifying and defining multiple places of interest, and the generated apps were therefore mostly limited to single places of interest, which were manually defined. Hence, they are difficult to use in larger areas. This thesis aims to use a location-based service to support therapists in defining places of interest, based on location and place categories. The work is carried out as an extension of the SYMPTOMS platform, and it allows therapists to define multiple places of interest automatically and for larger areas. The added value of the approach (in terms of automation, ease of use, and universally usable of therapies) by the location-based services in improving mental health interventions is evaluated. As a result, the application was found to be usable with SUS score of 91.875 and useful for therapists to define multiple places of interest at the same time which simplifies the configuration process and makes therapies universally usable. Reproducibility self-assessment (https://osf.io/j97zp/): 2, 2, 1, 2, 2 (input data, pre-processing, methods, computational environment, results)

Towards an aspect weaving BPEL engine

This position paper proposes the use of dynamic aspects and the visitor design pattern to obtain a highly configurable and extensible BPEL engine. Using these two techniques, the core of this infrastructural software can be customised to meet new requirements and add features such as debugging, execution monitoring, or changing to another Web Service selection policy. Additionally, it can easily be extended to cope with customer-specific BPEL extensions. We propose the use of dynamic aspects not only on the engine itself but also on the workflow in order to tackle the problems of Web Service hot deployment and hot fixes to long running processes. In this way, composing aWeb Service "on-the-fly" means weaving its choreography interface into the workflow