Abstract In this article, we expose a system developed that extends the Acquired Brain Injury (ABI) diagnostic application known as D-Riska with an artificial intelligence module that supports the diagnosis of ABI enabling therapists to evaluate patients in an assisted way. The application is in charge of collecting the data of the diagnostic tests of the patients, and due to a multi-class Convolutional Neural Network classifier (CNN), it is capable of making predictions that facilitate the diagnosis and the final score obtained in the test by the patient. To find out the best solution to this problem, different classifiers are used to compare the performance of the proposed model based on various classification metrics. The proposed CNN classifier makes predictions with 93 % of Accuracy, 94 % of Precision, 91 %, of Recall and 92% of F1-Score.

Abstract Globalization has increased the need for society to master new languages. This need has encouraged the launch of many applications dedicated to language learning. This paper presents a graphical notation for a domain specific language to represent language learning activities. It describes how this notation enables developers to represent language learning activity characteristics using workflow, presentation, content, media and activity model conforming a metamodel that defines the abstract syntax of the domain specific language. This notation is implemented as part of an integrated development environment to build model-based applications. Finally, this proposal is evaluated with a framework that uses the cognitive dimensions of notations for notational systems. The proposed graphic diagram editor exceeds the experience that the user has with the reflexive model editor. In relation to the creation and editing of workflow models and presentation/activity models, the proposed graphical notation its more intuitive and easy to maintain visually than the traditional reflexive tree notation used by many model-based development frameworks.

Distributable user interfaces enable users to distribute user interface interaction objects (i.e. panels, buttons, input fields, checkboxes, etc.) across different displays using a set of distribution primitives to manipulate them in real time. This work presents how this kind of user interfaces facilitates the computer supported collaborative learning in modern classrooms. These classrooms provide teachers and students with display ecosystems consisting of stationary displays, such as smart projectors and smart TVs as well as mobile displays owned by teachers and students, such as smartphones, tablets, and laptops. The distribution of user interface interaction objects enables teachers to modify the user interface interaction objects that are available to students in real time to control and promote the collaboration and participation among them during learning activities. We propose the development of this type of applications using an extension of the CAMELEON reference framework that supports the definition of UI distribution models. The Essay exercise is presented as a case of study where teachers control the collaboration among students by distributing user interface interaction objects.

This article explores the key points regarding the development of distributed user interfaces to present the features that are not covered by traditional development processes and how these features are characterized. A transversal approach to tackle these new issues is also proposed. This introductory article aims to present also a resume of the main topics covered in this special issue that gathers a thorough selection of the best papers presented at the first workshop on distributed user interfaces. The goal of this workshop is to promote the discussion about the emerging topic of distribute user interfaces, answering a set of key questions: what, when, how, and why distribute a user interface among different devices to improve users' interaction.

The Collaborative Map Explorer defines a new learning artifact that allows students to explore different layers of information related to a geographical location on a map using distributed user interfaces in the same space at the same time. Students are able to manipulate geographical information using viewports that can be moved over a map that is projected on a shared surface (i.e. multitouch surface). Each viewport exposes different layers of information for a particular region on the map. These information layers are selected by the student using a mobile device. Consequently, the use of a distributed user interface provides students with the ability to address local and shared information at the same time in the same space in a Computer Supported Collaborative Learning Environment. The article also includes a preliminary usability evaluation of this interaction technique that exposes the potential of this solution.

WallShare introduces a new system to improve the collaboration possibilities among the participants in face-to-face meetings and working groups. It defines an novel interaction device and platform to develop collaborative applications. The system provides a shared zone displayed by a projector over a wall. Through their cursors and mobile devices users are capable of post notes and messages, and sharing files, such as documents, images, etc. This article also exposes a preliminary usability evaluation of WallShare showing the effectiveness, productivity and satisfaction of users.

Co-Interactive Table is a client-server system designed to facilitate collaborative tasks in any kind of meeting such as sharing information and files among the participants using simple, natural and intuitive gestures. We have used technology based on mobile devices and RFID to implement the system. The system is composed of panels (one per user) forming the interactive table. A projector connected to a PC updates instantly the information generated in the meeting such as notes, ideas and the specific information of each participant. All devices used in the meeting room are connected via Wi-Fi to the Co-Interactive Table server. This server is responsible for providing important web services that coordinate and control the system performance. Besides, the system offers the possibility of performing remote meetings without losing functionality. The Co-interactive table client application runs on mobile devices with RFID reader. The system can recognize the service required by the user with a gesture as simple and natural as bringing the mobile device near the interactive table to select the desired action.

We introduce a new system to improve the collaboration possibilities among the participants in face-to-face meetings and working groups, called WallShare. WallShare is a new interaction device and a new platform to develop collaborative applications. The proposed system provides a shared zone that is displayed by a projector over a wall. Users can collaborate through the shared zone using their own mobile devices, such as mobile phones, PDAs, laptops and so on. To use the shared zone, users have their own cursors that allow them to share any kind of files, such as images, or documents. WallShare has been proved helpful to support distributed user interfaces. The usability evaluation also showed us that WallShare users' can perform a set of tasks with effectiveness, productivity and satisfaction.