Enhanced reproducibility of SADI web service workflows with Galaxy and Docke

Background: Semantic Web technologies have been widely applied in the life sciences, for example by data providers such as OpenLifeData and through web services frameworks such as SADI. The recently reported OpenLifeData2SADI project offers access to the vast OpenLifeData data store through SADI services. Findings: This article describes how to merge data retrieved from OpenLifeData2SADI with other SADI services using the Galaxy bioinformatics analysis platform, thus making this semantic data more amenable to complex analyses. This is demonstrated using a working example, which is made distributable and reproducible through a Docker image that includes SADI tools, along with the data and workflows that constitute the demonstration. Conclusions: The combination of Galaxy and Docker offers a solution for faithfully reproducing and sharing complex data retrieval and analysis workflows based on the SADI Semantic web service design patterns.

Multi Domain-Specific Modeling of the Security Concerns of Service-Oriented Architectures

Service-Oriented Architectures (SOA), and Web Services (WS), the technology generally used to implement them, achieve the integration of heterogeneous technologies, providing interoperability, and yielding the reutilization of pre-existent systems. Model-driven development methodologies provide inherent benefits such as increased productivity, greater reuse, and better maintainability, to name a few. Efforts on achieving model-driven development of SOAs already exist, but there is currently no standard solution that addresses non-functional aspects of these services as well. This paper presents an approach to integrate these non-functional aspects in the development of web services, with an emphasis on security.

DBpedia spotlight: shedding light on the web of documents

Interlinking text documents with Linked Open Data enables the Web of Data to be used as background knowledge within document-oriented applications such as search and faceted browsing. As a step towards interconnecting the Web of Documents with the Web of Data, we developed DBpedia Spotlight, a system for automatically annotating text documents with DBpedia URIs. DBpedia Spotlight allows users to congure the annotations to their specic needs through the DBpedia Ontology and quality measures such as prominence, topical pertinence, contextual ambiguity and disambiguation condence. We compare our approach with the state of the art in disambiguation, and evaluate our results in light of three baselines and six publicly available annotation systems, demonstrating the competitiveness of our system. DBpedia Spotlight is shared as open source and deployed as a Web Service freely available for public use.

DBpedia Spotlight: Shedding Light on the Web of Documents

Interlinking text documents with Linked Open Data enables the Web of Data to be used as background knowledge within document-oriented applications such as search and faceted browsing. As a step towards interconnecting the Web of Documents with the Web of Data, we developed DBpedia Spotlight, a system for automatically annotating text documents with DBpedia URIs. DBpedia Spotlight allows users to configure the annotations to their specific needs through the DBpedia Ontology and quality measures such as prominence, topical pertinence, contextual ambiguity and disambiguation confidence. We compare our approach with the state of the art in disambiguation, and evaluate our results in light of three baselines and six publicly available annotation systems, demonstrating the competitiveness of our system. DBpedia Spotlight is shared as open source and deployed as a Web Service freely available for public use.

Towards data-aware resource analysis for service orchestrations

Compile-time program analysis techniques can be applied to Web service orchestrations to prove or check various properties. In particular, service orchestrations can be subjected to resource analysis, in which safe approximations of upper and lower resource usage bounds are deduced. A uniform analysis can be simultaneously performed for different generalized resources that can be directiy correlated with cost- and performance-related quality attributes, such as invocations of partners, network traffic, number of activities, iterations, and data accesses. The resulting safe upper and lower bounds do not depend on probabilistic assumptions, and are expressed as functions of size or length of data components from an initiating message, using a finegrained structured data model that corresponds to the XML-style of information structuring. The analysis is performed by transforming a BPEL-like representation of an orchestration into an equivalent program in another programming language for which the appropriate analysis tools already exist.

Servicio Web para gestión de juego cooperativo sobre desarrollo humano

Este Proyecto Fin de Carrera (PFC) tiene como objetivos el análisis, diseño e implementación de un sistema web que permita a los usuarios familiarizarse con el Índice de Desarrollo Humano (IDH), publicado anualmente por Naciones Unidas, ofreciendo un servicio de gestión y descarga de una aplicación móvil relacionada con dicho índice. La aplicación móvil es un juego educativo basado en preguntas sobre el IDH de los países, desarrollada en paralelo con este proyecto. El servicio web implementado en este proyecto facilita tanto la descarga, administración y actualización de contenidos como la interacción entre los usuarios. El sistema está formado por un servidor web, una base de datos de usuarios y contenidos y un portal web desde el cual puede descargarse la aplicación móvil, realizar consultas sobre estadísticas de juego y conocer el IDH sin necesidad de jugar. El buscador avanzado que ha sido desarrollado para conocer el IDH permite al usuario adquirir destrezas y entrenarse por sí solo para mejorar sus resultados de juego. Los administradores del sistema tienen la capacidad de gestionar el contenido del portal, los usuarios que solicitan darse de alta y la funcionalidad ofrecida, es decir, actualización del juego, foros y noticias. La instalación del sistema implementado en un servidor web ha permitido su verificación exitosa así como la provisión del servicio de información y sensibilización sobre el IDH, actualizado mediante la información de Naciones Unidas, motivación original del proyecto. ABSTRACT This Final Year Project takes as targets the analysis, design and implementation of a web system that allows to the users to familiarize with the Human Development Index (HDI), published annually by United Nations, offering a service of management and download a mobile application associated with that index. The mobile application is an educational game based on questions on the IDH of the countries, developed in parallel with this project. The web service implemented by means of this Project facilitates download, administration and update of contents and the interaction between the users across the cooperative game. The system consists of a web server, a database of users and content and a web portal from which you can download the mobile application, perform queries on game statistics, or discover the HDI without need for play. The advanced search engine that has been developed for the HDI allows the user to purchase and train for skills to improve their game results. System administrators have the ability to manage the content of the portal, users requesting register and the functionality offered, i.e., update to the game, forums and news. The installation of the system that was implemented has allowed successful verification and the provision of an information and awareness on the HDI, updated with the information from the United Nations, original motivation of the project.

A Coreference Service for Enterprise Application Integration using Linked Data

The use of semantic and Linked Data technologies for Enterprise Application Integration (EAI) is increasing in recent years. Linked Data and Semantic Web technologies such as the Resource Description Framework (RDF) data model provide several key advantages over the current de-facto Web Service and XML based integration approaches. The flexibility provided by representing the data in a more versatile RDF model using ontologies enables avoiding complex schema transformations and makes data more accessible using Web standards, preventing the formation of data silos. These three benefits represent an edge for Linked Data-based EAI. However, work still has to be performed so that these technologies can cope with the particularities of the EAI scenarios in different terms, such as data control, ownership, consistency, or accuracy. The first part of the paper provides an introduction to Enterprise Application Integration using Linked Data and the requirements imposed by EAI to Linked Data technologies focusing on one of the problems that arise in this scenario, the coreference problem, and presents a coreference service that supports the use of Linked Data in EAI systems. The proposed solution introduces the use of a context that aggregates a set of related identities and mappings from the identities to different resources that reside in distinct applications and provide different views or aspects of the same entity. A detailed architecture of the Coreference Service is presented explaining how it can be used to manage the contexts, identities, resources, and applications which they relate to. The paper shows how the proposed service can be utilized in an EAI scenario using an example involving a dashboard that integrates data from different systems and the proposed workflow for registering and resolving identities. As most enterprise applications are driven by business processes and involve legacy data, the proposed approach can be easily incorporated into enterprise applications.

Diseño e implementación de un framework de funcionalidades Javascript en entornos de programación web

El presente documento aborda la problemática surgida en torno al desarrollo de una plataforma para gestionar las guías docentes de la Universidad Politécnica de Madrid, centrándose en el uso de las tecnologías Javascript, así como de lo algoritmos, plugins y bibliotecas auxiliares creadas y utilizadas. Por último, se muestran los resultados obtenidos del análisis y puesta en práctica de lo expuesto en el documento, así como conclusiones y sugerencias de futuras líneas de trabajo para este mismo proyecto. ---ABSTRACT---This document explains the problems found when developing a web service whose purpose is the management of learning guides at \Universidad Politecnica de Madrid". This final thesis focus on the use of Javascript technologies and the plugins, algorithms and auxiliar libraries used and developed. Finally, results of the analysis, development of the ideas exposed in this document, and conclusions and future working lines are presented.

Sistemas web con alta disponibilidad en cloud

Este trabajo contiene el estudio de las tecnologías que se están usando actualmente en web, tratando de explicar cuáles son sus principales componentes, su objetivo y funcionamiento. En base a un supuesto teórico de un montaje para un servicio web con un número muy alto de usuarios, y basándose en las tecnologías estudiadas, se propone un posible montaje completo de un sistema, que sería capaz de gestionar correctamente todas las peticiones, evitando fallos y tiempos de indisponibilidad. Se a~nade un análisis teórico de los costes deribados de la implantación del sistema, comparándolo con un sistema web convencional, y otro análisis con el funcionamiento de una caché y los benéficos, en carga, derivados de su uso.---ABSTRACT---This work contains a study about new web technologies. Its objective is to explain the web technologies componentes with their particular usage and performance. Based on a theorical postulation about a preparation of a web service with a large number of users, and working with the studied technologies, a complete system assembling is proposed. This system will be able to attend all the incoming requests, without failures nor downtimes. It is attached a theorical study of the derivative costs associated to the system implementation, compared to a traditional one. In addition, another study is included with the work ow of a cache and the benefits derived of its usage in work terms.

Semantic Annotation of RESTful and WFS OGC services

Actualmente, la Web provee un inmenso conjunto de servicios (WS-*, RESTful, OGC WFS), los cuales están normalmente expuestos a través de diferentes estándares que permiten localizar e invocar a estos servicios. Estos servicios están, generalmente, descritos utilizando información textual, sin una descripción formal, es decir, la descripción de los servicios es únicamente sintáctica. Para facilitar el uso y entendimiento de estos servicios, es necesario anotarlos de manera formal a través de la descripción de los metadatos. El objetivo de esta tesis es proponer un enfoque para la anotación semántica de servicios Web en el dominio geoespacial. Este enfoque permite automatizar algunas de las etapas del proceso de anotación, mediante el uso combinado de recursos ontológicos y servicios externos. Este proceso ha sido evaluado satisfactoriamente con un conjunto de servicios en el dominio geoespacial. La contribución principal de este trabajo es la automatización parcial del proceso de anotación semántica de los servicios RESTful y WFS, lo cual mejora el estado del arte en esta área. Una lista detallada de las contribuciones son: • Un modelo para representar servicios Web desde el punto de vista sintáctico y semántico, teniendo en cuenta el esquema y las instancias. • Un método para anotar servicios Web utilizando ontologías y recursos externos. • Un sistema que implementa el proceso de anotación propuesto. • Un banco de pruebas para la anotación semántica de servicios RESTful y OGC WFS. Abstract The Web contains an immense collection of Web services (WS-*, RESTful, OGC WFS), normally exposed through standards that tell us how to locate and invocate them. These services are usually described using mostly textual information and without proper formal descriptions, that is, existing service descriptions mostly stay on a syntactic level. If we want to make such services potentially easier to understand and use, we may want to annotate them formally, by means of descriptive metadata. The objective of this thesis is to propose an approach for the semantic annotation of services in the geospatial domain. Our approach automates some stages of the annotation process, by using a combination of thirdparty resources and services. It has been successfully evaluated with a set of geospatial services. The main contribution of this work is the partial automation of the process of RESTful and WFS semantic annotation services, what improves the current state of the art in this area. The more detailed list of contributions are: • A model for representing Web services. • A method for annotating Web services using ontological and external resources. • A system that implements the proposed annotation process. • A gold standard for the semantic annotation of RESTful and OGC WFS services, and algorithms for evaluating the annotations.

A web-based application for the management and evaluation of tutoring requests in PBL-based massive laboratories

One important steps in a successful project-based-learning methodology (PBL) is the process of providing the students with a convenient feedback that allows them to keep on developing their projects or to improve them. However, this task is more difficult in massive courses, especially when the project deadline is close. Besides, the continuous evaluation methodology makes necessary to find ways to objectively and continuously measure students' performance without increasing excessively instructors' work load. In order to alleviate these problems, we have developed a web service that allows students to request personal tutoring assistance during the laboratory sessions by specifying the kind of problem they have and the person who could help them to solve it. This service provides tools for the staff to manage the laboratory, for performing continuous evaluation for all students and for the student collaborators, and to prioritize tutoring according to the progress of the student's project. Additionally, the application provides objective metrics which can be used at the end of the subject during the evaluation process in order to support some students' final scores. Different usability statistics and the results of a subjective evaluation with more than 330 students confirm the success of the proposed application.

The state of semantic technology today - overview of the first SEALS evaluation campaigns

This paper describes the first five SEALS Evaluation Campaigns over the semantic technologies covered by the SEALS project (ontology engineering tools, ontology reasoning tools, ontology matching tools, semantic search tools, and semantic web service tools). It presents the evaluations and test data used in these campaigns and the tools that participated in them along with a comparative analysis of their results. It also presents some lessons learnt after the execution of the evaluation campaigns and draws some final conclusions.

PubDNA Finder in a Nutshell. Searching the Life Sciences Literature with Sequences of Nucleic Acids

Biomedical researchers and clinicians working with molecular technologies in routine clinical practice often need to review the available literature to gather information regarding specific sequences of nucleic acids. This includes, for instance, finding articles related to a concrete DNA sequence, or identifying empirically-validated primer/probe sequences to evaluate the presence of different micro-organisms. Unfortunately, these hard and time-consuming tasks often need to be manually performed by researchers themselves since no publicly available biomedical literature search engine, e.g. PubMed, PubMed Central (PMC), etc., provides the required search functionalities. In this article, we describe PubDNA Finder, a web service that enables users to perform advanced searches on PubMed Central-indexed full text articles with sequences of nucleic acids

Semantic evaluation at large scale (SEALS)

This paper describes the main goals and outcomes of the EU-funded Framework 7 project entitled Semantic Evaluation at Large Scale (SEALS). The growth and success of the Semantic Web is built upon a wide range of Semantic technologies from ontology engineering tools through to semantic web service discovery and semantic search. The evaluation of such technologies ? and, indeed, assessments of their mutual compatibility ? is critical for their sustained improvement and adoption. The SEALS project is creating an open and sustainable platform on which all aspects of an evaluation can be hosted and executed and has been designed to accommodate most technology types. It is envisaged that the platform will become the de facto repository of test datasets and will allow anyone to organise, execute and store the results of technology evaluations free of charge and without corporate bias. The demonstration will show how individual tools can be prepared for evaluation, uploaded to the platform, evaluated according to some criteria and the subsequent results viewed. In addition, the demonstration will show the flexibility and power of the SEALS Platform for evaluation organisers by highlighting some of the key technologies used.

Desarrollo de una solución SaaS para una Enterprise Store

En el marco del proyecto europeo FI-WARE, en el CoNWet Lab (laboratorio de la ETSI Informáticos de la UPM) se ha implementado la plataforma Web Wstore que es una implementación de referencia del Store Generic Enabler perteneciente a dicho proyecto. El objetivo de FI-WARE es crear la plataforma núcleo del Internet del Futuro (IoF) con la intención de incrementar la competitividad global europea en el mundo de las TI. El proyecto introduce una infraestructura innovadora para la creación y distribución de servicios digitales en internet. WStore ofrece a los proveedores de servicios la plataforma donde publicar sus ofertas y desde la cual los clientes podrán acceder ellas. Estos proveedores ofrecen servicios Web, aplicaciones, widgets y data sets del mismo modo que Google ofrece aplicaciones en la tienda online Google Play o Apple en el App Store. WStore está implementada actualmente como una plataforma Web, por lo que una organización que desee ofrecer el servicio de la store necesita instalar el software en un servidor propio y disponer de un dominio para ofrecer sus productos. El objetivo de este trabajo es migrar WStore a un entorno de computación en la nube de manera que con una única instancia se ofrezca el servicio a las organizaciones que deseen disponer de su propia plataforma, de la cual tendrán total control como si se encontrase en su propia infraestructura. Para esto se implementa una versión de WStore que será desplegada en una infraestructura cloud y ofrecida como Software as a Service. La implementación incluye una serie de módulos de código que se podrán añadir opcionalmente en el proceso de instalación si se desea que la instancia instalada sea Multitenant. Además, en este trabajo se estudian y prueban las herramientas que ofrece MongoDB para desplegar la plataforma Wstore Multitenant en una infraestructura cloud. Estas herramientas son replica sets y sharding que permiten desplegar una base de datos escalable y de alta disponibilidad. ---ABSTRACT---In the context of the European project FI-WARE, the CoNWeT Lab (IT Lab from ETSIINF UPM university) has been implemented the web platform WStore. WStore is a reference implementation of the Generic Enabler Store from FI-WARE project. The FI-WARE goal is to create the core platform of the Future Internet (IoF) with the intention of enhancing Europe's global competitiveness in IT technologies. FI-WARE introduces an innovative infrastructure for the creation and distribution of digital services over the Internet. WStore offers to service providers a platform to publicate offerings and where customers can access them. The providers offer web services, applications, widgets and data sets in the same way that Google offers online applications on Google Play or Apple on App Store plataforms. WStore is currently implemented as a web platform, so if an organization wants to offer the store service, it need to install the software on it’s own serves and have a domain to offer their products. The objective of this paper is to migrate WStore to a cloud computing environment where a single instance of the WStore is offered as a web service to organizations who want their own store. Customers (tenants) of the WStore web service will have total control over the software and WStore administration. The implementation includes several code modules that can be optionally added in the installation process to build a Multitenant instance. In addition, this paper review the tools that MongoDB provide for scalability and high availability (replica sets and sharding) with the purpose of deploying multi-tenant WStore on a cloud infrastructure.