Made available in DSpace on 2019-03-29T23:49:39Z (GMT). No. of bitstreams: 0 Previous issue date: 2016-12-16 / On the WWW environment, REST-based web services became a large adopted standard. The addition of semantics intends to enhance the web services description with information that enables automatic agents to execute inferences with their data. However, the existence of different languages to semantically describe services makes it difficult to discover and to select the service that best attends a requirement. Furthermore, only few proposals presents a RESTful service semantic description, making the discover process for RESTful services more difficult. The adoption of an interface can overcome some difficulties in the discovery process, contributing to the web service communication between clients and servers. In this sense, the Semantic RESTful Interface (SERIN) is an ontology with annotations that semantically describes RESTful web services. The present work proposes a RESTful semantic web service discovery architecture based on SERIN. This discovery architecture considers the existence of a crawler that scans the Web trying to find out servers that implements web services based on SERIN interfaces. The discovery process intends to look for three entities: hosts that implement semantic interfaces, new semantic interfaces, and the relationship between a host and a semantic interface. A repository stores the found hosts and their semantic interfaces. This repository works as an inverted index where a client can query for the interested web services. This architecture enables software agents to automatically discover and to make service calls in order to execute a determined task. At last, we present some studies to evaluate our proposal. The first study compares similar web service description approaches showing the benefits of the semantic interfaces. The second study evaluates an implementation of the discovery architecture demonstrating that is possible to implement a semantic service-based application using the proposed architecture. Keywords: RESTful web service, semantic interface, semantic web service, SERIN, web service discovery, semantic web. / Na Internet, serviços web baseados em REST tornaram-se um padrão largamente utilizado. A adição de semântica pretende enriquecer as descrições de serviços web com informações que permitam agentes automáticos executar inferências sobre os dados fornecidos. Entretanto, a existência de linguagens diferentes para descrever serviços semanticamente torna difícil a descoberta e a seleção do serviço que melhor atenda um requisito. Além do mais, poucas propostas apresentam descrição semântica para serviços web RESTful, tornando o processo de descoberta de serviços RESTful ainda mais difícil. A adoção de uma interface pode contornar algumas dificuldades no processo de descoberta, contribuindo para a comunicação entre clientes e servidores de serviços web. Neste sentido, a Interface Semântica RESTful (SERIN) é uma ontologia com anotações que descrevem semanticamente serviços web RESTful. O trabalho presente propõe uma arquitetura para descoberta de serviços web semânticos RESTful baseada em SERIN. Esta arquitetuta de descoberta considera a existência de um crawler que varre a Web tentando identificar servidores que implementem serviços web baseados em interfaces SERIN. O processo de descoberta pretende localizar três entidades: servidores que implementem interfaces semânticas, interfaces semânticas novas e o relacionamento entre um servidor e uma interface semântica. Um repositório armazena os servidores encontrados e suas interfaces semânticas. Este repositório funciona como um índice invertido no qual um cliente pode consultar serviços web de interesse. Esta arquitetura permite que agentes de software automaticamente descubram e realizem chamadas a serviços para executar uma tarefa determinada. Por fim, apresentam-se alguns estudos para avaliar a proposta apresentada. O primeiro estudo compara propostas similares de descrição de serviços web mostrando os benefícios das interfaces semânticas. O segundo estudo avalia uma implementação da arquitetura de descoberta evidenciando a viabilidade de implementar uma aplicação baseada em serviços web semânticos usando a arquitetura proposta. Palavras chave: serviço web RESTful, interface semântica, serviço web semântico, SERIN, descoberta de serviço web, web semântica.

<p> An increased number of widespread disasters ranging from storm surge flooding to sprawling wildfires, has increased the pressure on emergency communication. Social Media, through mobile technology combined with volunteer geographic information (VGI), has the potential to enable disaster impacted populations to send and receive crucial information thereby reducing the impact and loss associated with widespread disasters. This study examines how social media impacts emergency and disaster communication by analyzing the results of thirty-three case studies where social media had an impact on communication. Thematic synthesis conducted through the identification of themes derived from study findings indicates that while there are many challenges to implementing a social media enhanced emergency communication strategy, when authorities adopt such a strategy, stakeholders affected by the emergency have more actionable information and situational awareness. Additionally, awareness of the emergency by non-affected stakeholders, such as disaster relief agencies and fundraisers increases exponentially when social media is included in the communication strategy. Findings also suggest that challenges such as information overload, and the dissemination of false information can be overcome when authorities cooperate with affected stakeholders to moderate social media posts.</p><p>

<p>This study was conducted to understand how the Cajun Navy 2016?s organization-stakeholder relationship development strategies (i.e. disclosure, information dissemination, and involvement) evolved over the course of a year from the Great Flood of 2016 to Hurricane Harvey. After the Great Flood of 2016, the Cajun Navy increased their online presence through Facebook and used the social networking platform to connect with other people who wanted to provide help during this crisis. The rapid growth of the Cajun Navy and its increased attention in the media shows that by fostering relationships online, a broader audience can be reached and engagement and reciprocity can be achieved via strategic communication. This study builds upon the social mediated crisis communication model (SMCC) to identify emerging trends in crisis communication on Facebook and how they were used by the Cajun Navy 2016 administrators to gain a following and to mobilize resources in times of crisis.

<p> Social media is rising in popularity as a credible source of information for consumers worldwide. Access to online product reviews appears limitless, and consumer voices are now influencing purchasing behavior far beyond the reach of traditional marketing campaigns. Joining the Internet influencers is a relatively new platform for sharing opinions, employer-review websites. Comments from current and former staff on employer review sites such as Glassdoor and Indeed offer a glimpse into company culture and the employer brand (Ambler &amp; Barrow, 1996). This qualitative, phenomenological study explored the lived experiences of hotel/casino resort employees through an examination of employer reviews posted on the Glassdoor and Indeed web pages of four Las Vegas gaming corporations. A thematic analysis of 1,063 employer reviews was conducted to identify the trio of employer-brand benefits (e.g., functional, economic, and psychological) drawn from Ambler and Barrow&rsquo;s (1996) employer-brand equity theory. Themes related to social identity theory (Tajfel, 1974), signaling theory (Spence, 1973), and the instrumental-symbolic framework (e.g., Lievens &amp; Highhouse, 2003) were examined in this study. </p><p> Two questions guided the research: (1) Which employer-brand benefits, if any, cited in the employer reviews of hotel/casino resorts are most frequently associated with positive and negative employee sentiment? (2) What is the relationship between employer benefits (e.g., functional, psychological, and economical) and the overall employee rating given by the reviewer? The results revealed that all three of Ambler and Barrow&rsquo;s (1996) employer-brand benefits appeared in the employer reviews as both positive and negative attributes of employment, with psychological and economic benefits most frequently referenced. Specific to employment in the Las Vegas hotel/casino resort industry, reviewers who gave high employer ratings were quite positive about economic benefits (i.e., salary and wages, unspecified benefits, and the free meal in the EDR) and psychological benefits (i.e., co-worker interactions and company atmosphere), while reviewers who gave their employer low ratings were disappointed with their position&rsquo;s economic (i.e., salary and wages), psychological (i.e., management behaviors, work schedule, and company atmosphere), and functional (i.e., promotional opportunities) benefits. The findings from this study have implications for both marketing and HR practitioners, and this study contributes to the growing body of employer-branding literature. </p><p>

Memoria (licenciado en ciencias jurídicas y sociales) / Esta memoria de grado analiza la Wiki desde el derecho de autor, intentando establecer la naturaleza jurídica de la plataforma, verificando la posibilidad de ejercer la protección de los distintos tipos de WIKI, y poniendo en duda la posibilidad de asignar responsabilidades a los sujetos que en ella intervienen por infracciones a derechos de terceros. Con ello se propone demostrar que el derecho de autor está obsoleto frente a las nuevas tecnologías digitales y que la premisa de originalidad defendida por la doctrina tradicional es a lo menos cuestionable.

Lee Cheuk Man. / Thesis submitted on: November 2002. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2003. / Includes bibliographical references (leaves 56-57). / Abstracts in English and Chinese. / Chapter 1 --- Introduction --- p.1 / Chapter 2 --- Background & Problem Formulation --- p.4 / Chapter 3 --- Admission Control and Resource Provisioning --- p.12 / Chapter 3.1 --- Admission Control & Class Assignment --- p.12 / Chapter 3.2 --- Maximum Profit Algorithm (MPA) --- p.12 / Chapter 3.3 --- Maximum Admission Algorithm (MAA) --- p.18 / Chapter 4 --- Dynamic Class Adaptation --- p.25 / Chapter 4.1 --- Centralized Approach: Server-Based Dynamic Adaptation (SBDA) --- p.26 / Chapter 4.2 --- Distributed & Game-Theoretic Approach: Client-Based Dy- namic Adaptation (CBDA) --- p.30 / Chapter 5 --- Performance Evaluation --- p.34 / Chapter 5.1 --- Experiment 1: Comparison of MPA and MAA Admission Control --- p.34 / Chapter 5.1.1 --- Experiment 1.A --- p.35 / Chapter 5.1.2 --- Experiment 1.B --- p.36 / Chapter 5.1.3 --- Experiment 1.C --- p.37 / Chapter 5.1.4 --- Experiment 1.D --- p.38 / Chapter 5.1.5 --- Experiment 1.E --- p.40 / Chapter 5.2 --- Experiment 2: Necessity for Adaptation --- p.41 / Chapter 5.3 --- Experiment 3: Comparison of SBDA and CBDA Adaptation Algorithms --- p.43 / Chapter 5.3.1 --- Experiment 3.A --- p.43 / Chapter 5.3.2 --- Experiment 3.B --- p.47 / Chapter 5.3.3 --- Experiment 3.C --- p.52 / Chapter 6 --- Related Work --- p.54 / Bibliography --- p.56

Made available in DSpace on 2014-06-12T17:39:55Z (GMT). No. of bitstreams: 2 arquivo6987_1.pdf: 1570719 bytes, checksum: eadf1c2c3a3411ae9aceddab6ec811a4 (MD5) license.txt: 1748 bytes, checksum: 8a4605be74aa9ea9d79846c1fba20a33 (MD5) Previous issue date: 2004 / A complexidade e o crescimento da Internet fizeram com que vários modelos e propostas para a comunicação entre aplicações fossem apresentados como opção de computação distribuída neste ambiente. Porém, em todos estes faz-se necessário a introdução de requisitos próprios de cada modelo, a serem adotados por aqueles que desejam utilizá-los. Como alternativa, apresenta-se a tecnologia de Web Services, caracterizada pelo baixo acoplamento entre as partes e fundamentada em XML, HTTP e outros padrões já estabelecidos na Internet. Para aderir a esta tecnologia, a plataforma de desenvolvimento Java apresenta o software Java WSDP(Java Web Services Development Package) que possibilita o fornecimento e o consumo de Web Services a partir de programação Java. Nas redes metropolitanas do poder executivo brasileiro, ocorre situação semelhante a heterogeneidade de linguagens e plataformas, como encontramos na Internet. Neste contexto, este trabalho propõe a implementação de Web Service em Java para a divulgação do orçamento público, como solução para integrar órgãos participantes das redes metropolitanas e disponibilizar tais informações para acesso público. Apresentamos estudo de caso relativo ao contexto anteriormente citado e implementamos protótipo para fornecimento de Web Services, bem como aplicação web para consumo e divulgação das informações obtidas

La presente tesis se enmarcó dentro de la línea de tecnologías de información y enfocado en el desarrollo de una aplicación web para la mejora de la gestión de inventarios en la empresa Lima Motor S.R.L, utilizando la Tecnología de Identificación por Radio Frecuencia (RFID). Los puntos de venta de la empresa Lima Motor S.R.L no contaban con procesos automatizados para la gestión de inventarios de sus vehículos automotores menores, se realizaban de forma manual, por lo cual se identificó la necesidad de automatizarlos y poderlos hacer más eficientes. Se planteó como objetivo el desarrollo de una aplicación web basado en el modelo de revisión continua y se utilizó la tecnología RFID en la mejora de la gestión de inventarios de vehículos automotores menores en la empresa Lima Motor S.R.L, lo cual permitió realizar las transferencias de vehículos entre los puntos de venta, registrando sus entradas y salidas, actualización de stock, toma de inventario y reportes de tiempo de rotación. Finalmente se comprobó la hipótesis, comparando los resultados de la aplicación web con registros manuales manejados anteriormente. De los resultados obtenidos de las pruebas realizadas con la aplicación web se llegó a la conclusión que el grado de certeza es de un 95%. / Tesis

El constante incremento de la información de la empresa Construcciones Reyes, ha llegado el punto de no poder llevar el control adecuado, se suma con la situación de los clientes con respecto a la comunicación que se pueda transmitir, es una comunicación verbal que no tiene algún sustento formal para la validación del mismo. Con la implementación de una web móvil, se mejoraron los procesos de la gestión de trazabilidad. La importancia de sistematizar la información de los procesos, ejecutando un proceso de ingeniería hace que asegure un producto de calidad, flexibilidad y la seguridad hacia los clientes. La metodología XP, se aplica como la guía para la elaboración de la web móvil durante la recolección de datos. El presente proyecto aplica estos conceptos para poder mejorar la gestión de la trazabilidad de las órdenes de trabajo de la empresa Construcciones Reyes. La implementación demuestra que la gestión de la trazabilidad de las órdenes de trabajo da como resultados la satisfacción de los clientes, que ha aumentado a 65% por la gran seguridad y confianza en la finalización de sus pedidos y las deudas con el proveedor han bajado el 30% evitando las cancelaciones de las ordenes de trabajo. / Tesis

Este trabalho foca na viabilização do desenvolvimento de serviços semânticos de acordo com o estilo arquitetural REST. Mais especificamente, considera-se a realização REST baseada no protocolo HTTP, resultando em serviços semânticos RESTful. A viabilização de serviços semânticos tem sido tema de diversas publicações no meio acadêmico. Porém, a grande maioria dos esforços considera apenas os serviços desenvolvidos sob o estilo arquitetural RPC, através do protocolo SOAP. A abordagem RPC, fortemente incentivada pela indústria de software, é perfeitamente realizável em termos tecnológicos, mas agrega computações e definições desnecessárias, o que resulta em serviços mais complexos, com baixo desempenho e pouca escalabilidade. O fato é que serviços REST compõem a maioria dos serviços disponibilizados na Web 2.0 nome amplamente adotado para referenciar a atual fase da Web, notoriamente focada na geração colaborativa de conteúdo. A proposta oferecida por este trabalho utiliza uma seleção específica de linguagens e protocolos já existentes, reforçando sua realizabilidade. Utiliza-se a linguagem OWL-S como ontologia de serviços e a linguagem WADL para a descrição sintática dos mesmos. O protocolo HTTP é utilizado na transferência das mensagens, na definição da ação a ser executada e no escopo de execução desta ação. Identificadores URI são utilizados na definição da interface de acesso ao serviço. A compilação final dá origem à ontologia RESTfulGrounding, uma especialização de OWL-S. / The proposal is to allow the development of semantic Web services according to an architectural style called REST. More specifically, it considers a REST implementation based on the HTTP protocol, resulting in RESTful Semantic Web Services. The development of semantic Web services has been the subject of various academic papers. However, the predominant effort considers Web services designed according to another architectural style named RPC, mainly through the SOAP protocol. The RPC approach, strongly stimulated by the software industry, aggregates unnecessary processing and definitions that make Web services more complex than desired. Therefore, services end up being not as scalable and fast as possible. In fact, REST services form the majority of Web services developed within the Web 2.0 context, an environment clearly focused on user-generated content and social aspects. The proposal presented here makes use of a specific selection of existing languages and protocols, reinforcing its feasibility. Firstly, OWL-S is used as the base ontology for services, whereas WADL is for syntactically describing them. Secondly, the HTTP protocol is used for transferring messages; defining the action to be executed; and also defining the execution scope. Finally, URI identifiers are responsible for specifying the service interface. The final compilation proposed results in an ontology named RESTfulGrounding, which extends OWL-S.