Genetic Programming for Smart Phone Personalisation

Personalisation in smart phones requires adaptability to dynamic context based on user mobility, application usage and sensor inputs. Current personalisation approaches, which rely on static logic that is developed a priori, do not provide sufficient adaptability to dynamic and unexpected context. This paper proposes genetic programming (GP), which can evolve program logic in realtime, as an online learning method to deal with the highly dynamic context in smart phone personalisation. We introduce the concept of collaborative smart phone personalisation through the GP Island Model, in order to exploit shared context among co-located phone users and reduce convergence time. We implement these concepts on real smartphones to demonstrate the capability of personalisation through GP and to explore the benefits of the Island Model. Our empirical evaluations on two example applications confirm that the Island Model can reduce convergence time by up to two-thirds over standalone GP personalisation.Comment: 43 pages, 11 figure

VANET Applications: Hot Use Cases

Current challenges of car manufacturers are to make roads safe, to achieve free flowing traffic with few congestions, and to reduce pollution by an effective fuel use. To reach these goals, many improvements are performed in-car, but more and more approaches rely on connected cars with communication capabilities between cars, with an infrastructure, or with IoT devices. Monitoring and coordinating vehicles allow then to compute intelligent ways of transportation. Connected cars have introduced a new way of thinking cars - not only as a mean for a driver to go from A to B, but as smart cars - a user extension like the smartphone today. In this report, we introduce concepts and specific vocabulary in order to classify current innovations or ideas on the emerging topic of smart car. We present a graphical categorization showing this evolution in function of the societal evolution. Different perspectives are adopted: a vehicle-centric view, a vehicle-network view, and a user-centric view; described by simple and complex use-cases and illustrated by a list of emerging and current projects from the academic and industrial worlds. We identified an empty space in innovation between the user and his car: paradoxically even if they are both in interaction, they are separated through different application uses. Future challenge is to interlace social concerns of the user within an intelligent and efficient driving

A Mobile App for Geolocalized, Dynamic Binaural Synthesis

Today, technical evolution and dissemination of smartphones have reached a point where powerful mobile computing has become virtually ubiquitous. Additionally, devices are equipped with a multitude of sensors and interfaces allowing for a – potentially continuous – acquisition of optical and acoustical data, the continued determination of bearing and position, and mobile network connectivity. Therefore, smartphones are increasingly used as a platform for mobile augmented or virtual reality applications. As a result, we report here on the development of an augmented audio application featuring Dynamic Binaural Synthesis (DBS) on iOS devices. The purpose of the app is to interactively render singular sound sources – sound spots virtually attached to fixed geographical positions – binaurally via headphones, while (currently) using the smartphone’s sensors to indicate the user’s viewing direction. With the help of a 2D map view, users may place multiple such sound spots in the actual (outdoor) environment - this way, for instance, creating augmented reality soundwalks. A proximity criterion is used to automatically switch the audio rendering process between different sound spots. During the realization of this application, special emphasis has been placed on finding suitable trade-offs between both a still cost-effective and plausible acoustic simulation. Thereby, obtaining an accurate continuous geographical position has emerged as a challenge

Image enhancement for text extraction on mobile application

Images are captured using a mobile phone camera would create 2D image variants, such as uneven lighting, cluttered background and text-like object. Pre-processing of images aim to reduce the noise in the image. In this project, a mobile application on image enhancement is developed. The application uses a combination of Otsu's Threshold binarization and colour clustering method is proposed to separate the text from the background. Text in images often has a higher intensity or lower intensity than the background. Otsu's binarization is used to convert the image to binary image for a higher contrast between the text and background. However, Otsu's binarization cannot distinguish between different colour pixels that have the similar illumination. Colour clustering is used in conjunction to binarization method as it is able to differentiate the different colour pixels hence eliminating the problem of Otsu's binarization method

Augmented reality in architecture and construction education: state of the field and opportunities

Over the past decade, the architecture and construction (AC) industries have been evolving from traditional practices into more current, interdisciplinary and technology integrated methods. Complex and intricate digital technologies and mobile computing such as simulation, computational design and immersive technologies, have been exploited for different purposes such as reducing cost and time, improving design and enhancing overall project efficiency. Immersive technologies and augmented reality (AR), in particular, have proven to be extremely beneficial in this field. However, the application and usage of these technologies and devices in higher education teaching and learning environments are yet to be fully explored and still scarce. More importantly, there is still a significant gap in developing pedagogies and teaching methods that embrace the usage of such technologies in the AC curricula. This study, therefore, aims to critically analyse the current state-of-the-art and present the developed and improved AR approaches in teaching and learning methods of AC, addressing the identified gap in the extant literature, while developing transformational frameworks to link the gaps to their future research agenda. The conducted analysis incorporates the critical role of the AR implications on the AC students’ skillsets, pedagogical philosophies in AC curricula, techno-educational aspects and content domains in the design and implementation of AR environments for AC learning. The outcomes of this comprehensive study prepare trainers, instructors, and the future generation of AC workers for the rapid advancements in this industry

Cognition and the Web

Empirical research related to the Web has typically focused on its impact to social relationships and wider society; however, the cognitive impact of the Web is also an increasing focus of scientific interest and research attention. In this paper, I attempt to provide an overview of what I see as the important issues in the debate regarding the relationship between human cognition and the Web. I argue that the Web is potentially poised to transform our cognitive and epistemic profiles, but that in order to understand the nature of this influence we need to countenance a position that factors in the available scientific evidence, the changing nature of our interaction with the Web, and the possibility that many of our everyday cognitive achievements rely on complex webs of social and technological scaffolding. I review the literature relating to the cognitive effects of current Web technology, and I attempt to anticipate the cognitive impact of next-generation technologies, such as Web-based augmented reality systems and the transition to data-centric modes of information representation. I suggest that additional work is required to more fully understand the cognitive impact of both current and future Web technologies, and I identify some of the issues for future scientific work in this area. Given that recent scientific effort around the Web has coalesced into a new scientific discipline, namely that of Web Science, I suggest that many of the issues related to cognition and the Web could form part of the emerging Web Science research agenda

Inter-Destination Multimedia Synchronization; Schemes, Use Cases and Standardization

Traditionally, the media consumption model has been a passive and isolated activity. However, the advent of media streaming technologies, interactive social applications, and synchronous communications, as well as the convergence between these three developments, point to an evolution towards dynamic shared media experiences. In this new model, geographically distributed groups of consumers, independently of their location and the nature of their end-devices, can be immersed in a common virtual networked environment in which they can share multimedia services, interact and collaborate in real-time within the context of simultaneous media content consumption. In most of these multimedia services and applications, apart from the well-known intra and inter-stream synchronization techniques that are important inside the consumers playout devices, also the synchronization of the playout processes between several distributed receivers, known as multipoint, group or Inter-destination multimedia synchronization (IDMS), becomes essential. Due to the increasing popularity of social networking, this type of multimedia synchronization has gained in popularity in recent years. Although Social TV is perhaps the most prominent use case in which IDMS is useful, in this paper we present up to 19 use cases for IDMS, each one having its own synchronization requirements. Different approaches used in the (recent) past by researchers to achieve IDMS are described and compared. As further proof of the significance of IDMS nowadays, relevant organizations (such as ETSI TISPAN and IETF AVTCORE Group) efforts on IDMS standardization (in which authors have been and are participating actively), defining architectures and protocols, are summarized.This work has been financed, partially, by Universitat Politecnica de Valencia (UPV), under its R&D Support Program in PAID-05-11-002-331 Project and in PAID-01-10, and by TNO, under its Future Internet Use Research & Innovation Program. The authors also want to thank Kevin Gross for providing some of the use cases included in Sect. 1.2.Montagud, M.; Boronat Segui, F.; Stokking, H.; Van Brandenburg, R. (2012). Inter-Destination Multimedia Synchronization; Schemes, Use Cases and Standardization. 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THE HYBRONAUT AND THE UMWELT: WEARABLE TECHNOLOGY AS ARTISTIC STRATEGY

This dissertation explores the use of irony in networked wearable technology art as a strategy to emphasise the complexity of conjunction between techno-organic human and the techno-organic world. The research addresses the relationship between technologically enhanced human and networked hybrid environment, and speculates on the impact of technological enhancements to the subjective construction of Umwelt through ironic interventions. The project employs both artistic practice and critical theory. The practice-based part of the dissertation is comprised of three wearable technology artworks produced during the study. These concrete artefacts employ irony as a means to expose the techno-organic relationship between humans and their environment under scrutiny. The works highlight the significance of technological modifications of the human for the formation of subjective worldview in an everyday hybrid environment. The theoretical part navigates between the fields of art, design, technology, science and cultural studies concerning the impact of technology and networks on human experience and perception of the world. In the background of this research is biologist Jakob von Uexküll’s concept of the Umwelt, which is a subjective perception created by an organism through its active engagement with the everyday living environment. This dissertation focuses on the Umwelt that is formed in an interaction between hybrid environment and the technologically enhanced human, the Hybronaut. 4 Hybrid environment is a physical reality merged with technologically enabled virtual reality. The Hybronaut is an artistic strategy developed during the research based on four elements: wearable technology, network ability, irony and contextualised experience for the public. Irony is one of the prominent characteristics of the Hybronaut. Irony functions as a way to produce multiple paradoxical perspectives that enable a critical inquiry into our subjective construction of Umwelt. The research indicates that ironic networked wearable technology art presents an opportunity to re-examine our perception concerning the human and his environment