MAIA: an event-based modular architecture for intelligent agents

Online services are no longer isolated. The release of public APIs and technologies such as web hooks are allowing users and developers to access their information easily. Intelligent agents could use this information to provide a better user experience across services, connecting services with smart automatic. behaviours or actions. However, agent platforms are not prepared to easily add external sources such as web services, which hinders the usage of agents in the so-called Evented or Live Web. As a solution, this paper introduces an event-based architecture for agent systems, in accordance with the new tendencies in web programming. In particular, it is focused on personal agents that interact with several web services. With this architecture, called MAIA, connecting to new web services does not involve any modification in the platform.

A case study on cross-platform development frameworks for mobile applications and UX

Cross-platform development frameworks for mobile applications promise important advantages in cost cuttings and easy maintenance, posing as a very good option for organizations interested in the design of mobile applications for several platforms. Given that platform conventions are especially important for the User eXperience (UX) of mobile applications, the usage of a framework where the same code defines the behavior of the app in different platforms could have a negative impact in the UX. This paper describes a study where two independent teams have designed two different versions of a mobile application, one using a framework that generates Android and iOS versions automatically, and another team using native tools. The alternative versions for each platform have been evaluated with 37 users with a combination of a laboratory usability test and a longitudinal study. The results show that differences are minimal in the Android platform, but in iOS, even if a reasonably good UX can be obtained with the usage of this framework by an UX-conscious design team, a higher level of UX can be obtained directly developing with a native tool.

Software architecture implementation based on OpenSim

One of the objectives of the European Higher Education Area is the promotion of collaborative and informal learning through the implementation of educational practices. 3D virtual environments become an ideal space for such activities. On the other hand, the problem of financing in Spanish universities has led to the search for new ways to optimize available resources. The Technical University of Madrid requires the use of laboratories which due to their dangerousness, duration or control of the developed processes are difficult to perform in real life. For this reason, we have developed several 3D laboratories in virtual environment. The laboratories are built on open source platform OpenSim. In this paper it is exposed the use of the OpenSim platform for these new teaching experiences and the new design of the software architecture. This architecture requires the adaptation of the platform to the needs of the users and the different laboratories of our University. We will explain the structure of the implemented architecture and the process of creating and configuring it. The proposed architecture is decentralized, each laboratory is housed in different an educational center. The architecture adds several services, among others, the creation and management of users automated, communication between external services and platforms in different program languages. Therefore, we achieve improving the user experience and rising the functionalities of laboratories.

Mining mobile apps reviews to support release planning

The mobile apps market is a tremendous success, with millions of apps downloaded and used every day by users spread all around the world. For apps’ developers, having their apps published on one of the major app stores (e.g. Google Play market) is just the beginning of the apps lifecycle. Indeed, in order to successfully compete with the other apps in the market, an app has to be updated frequently by adding new attractive features and by fixing existing bugs. Clearly, any developer interested in increasing the success of her app should try to implement features desired by the app’s users and to fix bugs affecting the user experience of many of them. A precious source of information to decide how to collect users’ opinions and wishes is represented by the reviews left by users on the store from which they downloaded the app. However, to exploit such information the app’s developer should manually read each user review and verify if it contains useful information (e.g. suggestions for new features). This is something not doable if the app receives hundreds of reviews per day, as happens for the very popular apps on the market. In this work, our aim is to provide support to mobile apps developers by proposing a novel approach exploiting data mining, natural language processing, machine learning, and clustering techniques in order to classify the user reviews on the basis of the information they contain (e.g. useless, suggestion for new features, bugs reporting). Such an approach has been empirically evaluated and made available in a web-­‐based tool publicly available to all apps’ developers. The achieved results showed that the developed tool: (i) is able to correctly categorise user reviews on the basis of their content (e.g. isolating those reporting bugs) with 78% of accuracy, (ii) produces clusters of reviews (e.g. groups together reviews indicating exactly the same bug to be fixed) that are meaningful from a developer’s point-­‐of-­‐view, and (iii) is considered useful by a software company working in the mobile apps’ development market.

Atención al cliente y medios sociales en la empresa

online donde el contenido es creado por los propios usuarios mediante el uso de las tecnologías de la web 2.0, que facilitan la edición, la publicación y el intercambio de información, de tal manera que los social media están democratizando las comunicaciones. Según datos publicados por eMarketer, casi el 25% del total de la inversión publicitaria mundial para el 2014 estará dirigida a medios digitales. Los medios de comunicación tradicionales están sumidos desde algún tiempo en una profunda crisis. En los comienzos de Internet, los protagonistas de este sector han creído en la red como un medio de publicación de contenidos en una única dirección, esto es la web 1.0, personas conectándose a páginas web. El típico lector de revista y seminario se ha convertido en un nuevo consumidor con necesidades muy distintas. El lector de un medio tradicional se encuentra con contenido cerrado, sin posibilidad de ser filtrado, que busca dirigir su opinión. Con el método tradicional no es posible ni personalizar el contenido ni la experiencia de uso. De ahí el nacimiento de la web 2.0, personas conectándose a personas (redes sociales). En un futuro cercano, van a triunfar las empresas, sectores y marcas que sepan adaptarse a la llegada de los social media, y que además de desarrollar su línea de negocio habitual, se conviertan en plataformas para la conversación y la construcción de contenidos en colaboración. En este proyecto voy a desarrollar el caso particular de una empresa de telecomunicaciones con una estrategia que use los social media como plataforma de atención al cliente, y para interaccionar también con su almacén en DHL. Los servicios añadidos que dicha empresa de telecomunicaciones ofrece a sus seguidores, clientes externos e internos se pueden agrupar en las siguientes funcionalidades:  Hacer un volcado del sistema de gestión de incidencias de una empresa de telecomunicaciones en las redes sociales, a través de mensajes privados. Dichos mensajes privados se enviarán a las páginas de Facebook y Twitter de los clientes.  Seguimiento por parte del cliente de puestas en marcha de los nuevos servicios a través de mensajes privados en Facebook y Twitter. Mediante este servicio el cliente podrá comprobar a través de las redes sociales el estado de su pedido e intercambiar información de utilidad con la empresa.  Desarrollar a través de las redes sociales una herramienta de marketing para interaccionar con los clientes y posibles seguidores. A través de los canales de los social media se proporciona a los seguidores información de valor sobre novedades del mercado de las telecomunicaciones, soporte técnico, dudas, consejos sobre implementaciones técnicas, equipos de telecomunicaciones,.etc.Es decir, crear una plataforma de conversación entre usuarios, que aporte a los seguidores conocimientos y soluciones útiles para la problemática de sus negocios.  Usar Facebook como base de datos y medio de comunicación entre nuestra empresa de telecomunicaciones y el almacén externalizado en DHL. Supongo que la primera pregunta que debo responder sería, ¿por qué un cliente de una empresa de telecomunicaciones estaría interesado en seguir a su proveedor a través de redes sociales? Facebook tiene en 2014 1,28 billones de usuarios activos. Twitter, la cuarta plataforma social por número de usuarios tras Facebook, alcanzó los 255 millones de usuarios en los primeros meses de 2014. La segunda red social en número de seguidores es Youtube, con un billón de usuarios. El 61,5% de los usuarios de Facebook visita la red todos los días. Los twitteros envían 110 millones tweets por día, tienen fama de muy activos, especialmente por la mañana. En 60 días, se sube más contenido de vídeo a YouTube que el producido por las tres principales cadenas de televisión estadounidense durante 60 años. Como conclusión, las redes sociales están ganando cada día más terreno, es un entorno de comunicación bidireccional en auge cada vez más extendido, por lo cual los usuarios no tienen que dedicar tiempo extra a conocer la herramienta de atención al cliente de su empresa, al usar ésta un canal fácil, conocido, rápido, versátil y gratuito como son las redes sociales. ABSTRACT. Social media are platforms of online communication where content is created by users themselves using technologies of web 2.0, which facilitate the editing, publication and the exchange of information, so that the social media are democratizing communications. According to data published by eMarketer, nearly 25% of the total global ad spend for 2014 will target digital media. The traditional media are trapped for some time in deep crisis. In the early days of the internet, the players of the sector have believed in the network as a means of publishing content in a single direction, this is the web 1.0, connecting people to websites. The typical magazine reader has become a new consumer with very different needs. Traditional medium readers encounter a closed content, unable to be filtered, which seeks handle their opinion. The traditional method doesn’t allow to customize the content and user experience. Hence the birth of Web 2.0, connecting people to people. In the near future, will succeed companies, sectors and brands who can adapt to the advent of social media, and further to develop their line of business as usual, become platforms for conversation and building collaborative content. In this project I will develop the particular case of a telecommunications company with a strategy to use social media as a platform for Customer Service, and also to interact with DHL warehouse. The additional services that the company offers telecommunications followers, external and internal customers can be grouped into the following functionality:  Make a dump of the incident management system of a telecommunications company in social networks through private messages. These private messages are sent Facebook and Twitter clients.  Monitoring by the client launched new services through private messages on Facebook and Twitter. Through this service, customers can check through the social networks of your order status and share useful information with the company.  Develop through social media as a marketing tool to interact with customers and potential followers.Our telco will provide to followers through social media channels valuable information on market developments in telecommunications, technical support, questions, advice on technical implementations, telecommunications equipment,etc. Then we create a platform for discussion between users, to provide followers useful knowledge and solutions to their business problems.  Use Facebook as a database and means of communication between our telco and outsourced telecommunications in DHL warehouse. I guess the first question that must be answered is why a customer of a telecommunications company would be interested in following your provider via social networks. Facebook has 1.28 billion active users in 2014. Twitter, the fourth social platform for many users after Facebook reached 255 million users in the first months of 2014. The second social network on number of followers is YouTube, with a billion users. 61.5% of Facebook users visit the network every day. The twitter users send 110 million tweets per day, have a reputation for very active, especially in the morning. In 60 days, it is produced more video content to YouTube by the three major US television for 60 years. In conclusion, social networks are gaining more ground every day. It is an environment of two-way communication on the rise, so users do not have to spend extra time to learn the tool of Customer Care telco, by using this easy, known, fast, versatile and free channels as are social networks.

Interacción combinada táctil 3D para manejo de colecciones de documentos

Actualmente existen varios dispositivos que aceptan gestos sobre superficies táctiles, sean celulares, tabletas, computadores, etc. a los cuales las personas se acostumbran rápidamente a su uso y los aceptan como herramientas necesarias en su vida. Del mismo modo existen algunas aplicaciones que manejan entornos en 3D, y permiten captar gestos realizados con las manos, cuerpo, cabeza. Estas técnicas se han desarrollado mucho por separado pero se ha podido evidenciar en base a los artículos revisados que no existen muchos estudios que combinen las aplicaciones táctiles con las 3D manejadas por gestos en el aire. El presente trabajo muestra un prototipo que permite la comunicación y coordinación entre dos aplicaciones, una que muestra documentos representados por esferas en una aplicación con interacción táctil desarrollada en Unity que funciona sobre Android, y una segunda aplicación desarrollada también en Unity que maneja un entorno 3D con el que se interactúa mediante gestos realizados en el aire. Luego de algunos intentos la interacción entre ambas aplicaciones fue lograda implementando comunicación por sockets entre la aplicación en el dispositivo Android y la aplicación 3D que se encuentra alojada en un computador con Windows 7. La captura de gestos en el aire se realiza mediante el sistema Tracking Tools desarrollado por la compañía Optitrack que captura los movimientos con cámaras infrarrojas y marcadores en los dedos. Este sistema envía los datos de los gestos a nuestra aplicación 3D. Estos equipos son de propiedad del laboratorio Decoroso Crespo de la Universidad Politécnica de Madrid. Una vez lograda la implementación e interacción entre las aplicaciones se han realizado pruebas de usabilidad con nueve estudiantes del Máster Universitario en Software y Sistemas de la Universidad Politécnica de Madrid. Cada uno ha respondido una serie de encuestas para poder obtener resultados sobre cuán usable es el prototipo, la experiencia del usuario y qué mejoras se podrían realizar sobre éste. En la parte final de este documento se presentan los resultados de las encuestas y se muestran las conclusiones y trabajo futuro.---ABSTRACT---Currently there are several devices that accept gestures on touch surfaces like phones, tablets, computers, etc. to which people quickly become accustomed to their use and accept them as necessary tools in their life. Similarly there are some applications that handle 3D environments and like televisions, holograms and allow capture gestures made with hands, body, and head. These techniques have been developed on a separated way but based on some research we may say that the are not many studies that combine touch with 3D applications handled by gestures in the air. This paper presents a prototype of the interaction of two issues of a 2D showing documents represented by spheres on a touch application developed in Unity that works on Android and allows communicating with the second application also developed in Unity that handles a 3D environment interaction of gestures made in air. After some attempts interaction was achieved by implementing communication sockets between the application on the Android device and 3D application that is hosted on a computer with windows 7, and gestures capturing in the air is done by the system Tracking Tools developed by the Optitrack company it captures movements with infrared cameras and markers on the fingers, which sends data to this application gestures, these equipment are owned by the Decoroso Crespo laboratory of the Polytechnic University of Madrid. Once achieved the interaction of applications has been conducted performance tests with ten students of the university master of the Universidad Politécnica de Madrid, each has answered a series of surveys to get results on how usable is the prototype, the user experience and that improvements could be made on this.

Assisting End-users in Filling Out Web Services

With the quick advance of web service technologies, end-users can conduct various on-line tasks, such as shopping on-line. Usually, end-users compose a set of services to accomplish a task, and need to enter values to services to invoke the composite services. Quite often, users re-visit websites and use services to perform re-occurring tasks. The users are required to enter the same information into various web services to accomplish such re-occurring tasks. However, repetitively typing the same information into services is a tedious job for end-users. It can negatively impact user experience when an end-user needs to type the re-occurring information repetitively into web services. Recent studies have proposed several approaches to help users fill in values to services automatically. However, prior studies mainly suffer the following drawbacks: (1) limited support of collecting and analyzing user inputs; (2) poor accuracy of filling values to services; (3) not designed for service composition. To overcome the aforementioned drawbacks, we need maximize the reuse of previous user inputs across services and end-users. In this thesis, we introduce our approaches that prevent end-users from entering the same information into repetitive on-line tasks. More specifically, we improve the process of filling out services in the following 4 aspects: First, we investigate the characteristics of input parameters. We propose an ontology-based approach to automatically categorize parameters and fill values to the categorized input parameters. Second, we propose a comprehensive framework that leverages user contexts and usage patterns into the process of filling values to services. Third, we propose an approach for maximizing the value propagation among services and end-users by linking a set of semantically related parameters together and similar end-users. Last, we propose a ranking-based framework that ranks a list of previous user inputs for an input parameter to save a user from unnecessary data entries. Our framework learns and analyzes interactions of user inputs and input parameters to rank user inputs for input parameters under different contexts.

Quantifying epistemic actions in human-computer interaction

As digital systems move away from traditional desktop setups, new interaction paradigms are emerging that better integrate with users’ realworld surroundings, and better support users’ individual needs. While promising, these modern interaction paradigms also present new challenges, such as a lack of paradigm-specific tools to systematically evaluate and fully understand their use. This dissertation tackles this issue by framing empirical studies of three novel digital systems in embodied cognition – an exciting new perspective in cognitive science where the body and its interactions with the physical world take a central role in human cognition. This is achieved by first, focusing the design of all these systems on a contemporary interaction paradigm that emphasizes physical interaction on tangible interaction, a contemporary interaction paradigm; and second, by comprehensively studying user performance in these systems through a set of novel performance metrics grounded on epistemic actions, a relatively well established and studied construct in the literature on embodied cognition. The first system presented in this dissertation is an augmented Four-in-a-row board game. Three different versions of the game were developed, based on three different interaction paradigms (tangible, touch and mouse), and a repeated measures study involving 36 participants measured the occurrence of three simple epistemic actions across these three interfaces. The results highlight the relevance of epistemic actions in such a task and suggest that the different interaction paradigms afford instantiation of these actions in different ways. Additionally, the tangible version of the system supports the most rapid execution of these actions, providing novel quantitative insights into the real benefits of tangible systems. The second system presented in this dissertation is a tangible tabletop scheduling application. Two studies with single and paired users provide several insights into the impact of epistemic actions on the user experience when these are performed outside of a system’s sensing boundaries. These insights are clustered by the form, size and location of ideal interface areas for such offline epistemic actions to occur, as well as how can physical tokens be designed to better support them. Finally, and based on the results obtained to this point, the last study presented in this dissertation directly addresses the lack of empirical tools to formally evaluate tangible interaction. It presents a video-coding framework grounded on a systematic literature review of 78 papers, and evaluates its value as metric through a 60 participant study performed across three different research laboratories. The results highlight the usefulness and power of epistemic actions as a performance metric for tangible systems. In sum, through the use of such novel metrics in each of the three studies presented, this dissertation provides a better understanding of the real impact and benefits of designing and developing systems that feature tangible interaction.

Edge caching with mobility prediction in virtualized LTE mobile networks

Abstract Mobile Edge Computing enables the deployment of services, applications, content storage and processing in close proximity to mobile end users. This highly distributed computing environment can be used to provide ultra-low latency, precise positional awareness and agile applications, which could significantly improve user experience. In order to achieve this, it is necessary to consider next-generation paradigms such as Information-Centric Networking and Cloud Computing, integrated with the upcoming 5th Generation networking access. A cohesive end-to-end architecture is proposed, fully exploiting Information-Centric Networking together with the Mobile Follow-Me Cloud approach, for enhancing the migration of content-caches located at the edge of cloudified mobile networks. The chosen content-relocation algorithm attains content-availability improvements of up to 500 when a mobile user performs a request and compared against other existing solutions. The performed evaluation considers a realistic core-network, with functional and non-functional measurements, including the deployment of the entire system, computation and allocation/migration of resources. The achieved results reveal that the proposed architecture is beneficial not only from the users’ perspective but also from the providers point-of-view, which may be able to optimize their resources and reach significant bandwidth savings.

High velocity jet noise source location and reduction.

"February 22, 1977."

Conceptualizing special interest tourism - frameworks for analysis

To advance understanding of Special Interest Tourism (SIT), this paper will explore the complexities of this phenomenon in the early 21st century. First, a look at what is out there, both from a supply and demand perspective, will serve to paint a broad picture at macro-level. The paper will present a discussion of the SIT phenomenon at the macro-level within a triangular relationship of supply, demand and media. Then, a more specific look at SIT attempts to clarify the ambiguity of the term. Finally, a look at micro-level from the consumer's perspective will introduce the concepts of enduring and situational involvement, and the nature of the product. Proposed frameworks are presented to provide structure and possible directions for future research and as a means of progressing conceptual development. (c) 2004 Elsevier Ltd. All rights reserved.

Immune-inspired adaptive information filtering

Adaptive information filtering is a challenging research problem. It requires the adaptation of a representation of a user’s multiple interests to various changes in them. We investigate the application of an immune-inspired approach to this problem. Nootropia, is a user profiling model that has many properties in common with computational models of the immune system that have been based on Franscisco Varela’s work. In this paper we concentrate on Nootropia’s evaluation. We define an evaluation methodology that uses virtual user’s to simulate various interest changes. The results show that Nootropia exhibits the desirable adaptive behaviour.

Improving cancer services through patient involvement

This book provides a clear approach to establishing a user involvement system in a healthcare organisation and its potential impact on cancer services. Using a tool kit style approach, drawing on examples of successful past projects and case studies to provide evidence of good practice, it describes how to plan and implement different stages of user involvement, enabling organisations to draw on user experience and expertise to evaluate, develop and improve the quality of service that they provide. Members of regional cancer networks, multidisciplinary cancer care teams, and all those involved in the NHS cancer services will find this toolkit interesting reading.

Hardware-based and Software-based Security in Digital Rights Management Solutions

The main requirements to DRM platforms implementing effective user experience and strong security measures to prevent unauthorized use of content are discussed. Comparison of hardware-based and software- based platforms is made showing the general inherent advantages of hardware DRM solutions. Analysis and evaluation of the main flaws of hardware platforms are conducted, pointing out the possibilities to overcome them. The overview of the existing concepts for practical realization of hardware DRM protection reveals their advantages and disadvantages and the increasing demand for creation of multi-core architecture, which could assure an effective DRM protection without decreasing the user’s freedom and importing risks for end system security.

We know what you want to buy:a demographic-based system for product recommendation on microblogs

Product recommender systems are often deployed by e-commerce websites to improve user experience and increase sales. However, recommendation is limited by the product information hosted in those e-commerce sites and is only triggered when users are performing e-commerce activities. In this paper, we develop a novel product recommender system called METIS, a MErchanT Intelligence recommender System, which detects users' purchase intents from their microblogs in near real-time and makes product recommendation based on matching the users' demographic information extracted from their public profiles with product demographics learned from microblogs and online reviews. METIS distinguishes itself from traditional product recommender systems in the following aspects: 1) METIS was developed based on a microblogging service platform. As such, it is not limited by the information available in any specific e-commerce website. In addition, METIS is able to track users' purchase intents in near real-time and make recommendations accordingly. 2) In METIS, product recommendation is framed as a learning to rank problem. Users' characteristics extracted from their public profiles in microblogs and products' demographics learned from both online product reviews and microblogs are fed into learning to rank algorithms for product recommendation. We have evaluated our system in a large dataset crawled from Sina Weibo. The experimental results have verified the feasibility and effectiveness of our system. We have also made a demo version of our system publicly available and have implemented a live system which allows registered users to receive recommendations in real time. © 2014 ACM.