AutoWebS: um Ambiente para Modelagem e Geração Automática de ServiçosWeb Semânticos

Typically Web services contain only syntactic information that describes their interfaces. Due to the lack of semantic descriptions of the Web services, service composition becomes a difficult task. To solve this problem, Web services can exploit the use of ontologies for the semantic definition of service s interface, thus facilitating the automation of discovering, publication, mediation, invocation, and composition of services. However, ontology languages, such as OWL-S, have constructs that are not easy to understand, even for Web developers, and the existing tools that support their use contains many details that make them difficult to manipulate. This paper presents a MDD tool called AutoWebS (Automatic Generation of Semantic Web Services) to develop OWL-S semantic Web services. AutoWebS uses an approach based on UML profiles and model transformations for automatic generation of Web services and their semantic description. AutoWebS offers an environment that provides many features required to model, implement, compile, and deploy semantic Web services

CMS data processing workflows during an extended cosmic ray run

The CMS Collaboration conducted a month-long data taking exercise, the Cosmic Run At Four Tesla, during October-November 2008, with the goal of commissioning the experiment for extended operation. With all installed detector systems participating, CMS recorded 270 million cosmic ray events with the solenoid at a magnetic field strength of 3.8 T. This paper describes the data flow from the detector through the various online and offline computing systems, as well as the workflows used for recording the data, for aligning and calibrating the detector, and for analysis of the data. © 2010 IOP Publishing Ltd and SISSA.

Aspectos semânticos, morfológicos e morfossintáticos das palavras descritivas Apurinã

Apresenta aspectos semânticos, morfossintáticos e morfológicos das palavras descritivas da língua Apurinã (Aruák), isto é, palavras que comumente são traduzidas como adjetivos nas línguas européias. Algumas dessas palavras recebem a marca de sujeito pronominal (ex. unatxitapeka 'ela está com fome'); outras recebem a marca de objeto (ex. ere-ru 'ela é bonita'); e outras podem receber tanto uma como a outra (ex. ny-pĩkareta eu estou com medo vs. papĩkare-nu eu sou medroso). A primeira questão aqui tratada foi quanto ao lugar das palavras descritivas nas partes do discurso Apurinã (são nomes, são verbos ou formam uma classe independente?). Utilizando evidências internas da língua, inicialmente estabelecemos uma classificação gramatical para essas palavras a partir de suas propriedades morfológicas em comparação aos nomes e verbos na língua, de modo a nos permitir responder a essa questão. A segunda questão foi sobre os correlatos semânticos das palavras descritivas. Considerando a divisão interna das palavras descritivas em Apurinã (subjetivas vs. objetivas), apresentamos as propriedades semânticas associadas a cada grupo e, a partir disso, apresentamos uma tentativa de motivar o subagrupamento de conceitos descritivos na língua com base nas noções aspectuais de transitoriedade e permanência. Finalmente, o fenômeno gramatical descrito é contextualizado dentro da tipologia de sistemas de intransitividade cindida descrito para outras línguas (PAYNE: 1997), e a descrição de suas propriedades semânticas é situada em relação à tipologia de aspectos lexicais ou aktionsarten (COMRIE: 1976, FRAWLEY: 1992).

Scan for MARC: princípios sintáticos e semânticos de registros bibliográficos aplicados à conversão de dados analógicos para o formato MARC 21 bibliográfico

Pós-graduação em Ciência da Informação - FFC

Grande sertão: veredas: alguns neologismos semânticos

A criação neológica estilística enfeixa a criatividade lexical e a neologia semântica. A neologia de sentido consiste no emprego de um significante já existente na língua c om um conteúdo que ele não possuía, ou porque o conteúdo é novo ou porque, até aquele momento, era expresso por outro significante. No texto literário, uma criação resultante desse tipo de procedimento tende a não se repetir. É o que chamamos de neologia semântica estilística. Nessa operação, a estrutura da frase tem função básica, pois, no mínimo, é necessário um sintagma para que surja novo sentido. A partir de algumas relações sintagmáticas, estudamos certos modos de manifestação da neologia semântica em Grande sertão: veredas.

Wikis semânticos: da Web para a Web Semântica

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Classificação de workflows baseados em web services

Over the last decades changes have occurred in communication within and between enterprises, made easier by technologies suchas E-commerce, Internet, ERP systems and remote meetings and there was a rapid progress in network technology, which has changed the way business is done. A standardized way to offer services over the internet is using web services. Web services are a kind of remote procedure call and are generally used to integrate systems, independent of language, both client and server. It is common to use several web services run in sequence to perform a business process. To this type of process, gives the name of workflow. Thus, Web services are the primary components of workflows. A tool that provides a way of visualizing the behavior of a workflow can assist the administrator and is required. The present work presents the development of a tool that allows the administrator to classify visually services components and evaluate their importance in the final performance of a workflow. As proof of concept we used several virtual servers and computers where each computer has received a set of web services. A proxy was added between each call of workflows collecting relevant information and storing them in a database for later analysis. The analysis was based on Quality of Service parameters

Inteligência cibernética e uso de recursos semânticos na detecção de perfis falsos no contexto do Big Data

Pós-graduação em Ciência da Informação - FFC

Inteligência cibernética e uso de recursos semânticos na detecção de perfis falsos no contexto do Big Data

Pós-graduação em Ciência da Informação - FFC

Time-Efficiency Analysis Comparing Digital and Conventional Workflows for Implant Crowns: A Prospective Clinical Crossover Trial

PURPOSE To compare time-efficiency in the production of implant crowns using a digital workflow versus the conventional pathway. MATERIALS AND METHODS This prospective clinical study used a crossover design that included 20 study participants receiving single-tooth replacements in posterior sites. Each patient received a customized titanium abutment plus a computer-aided design/computer-assisted manufacture (CAD/CAM) zirconia suprastructure (for those in the test group, using digital workflow) and a standardized titanium abutment plus a porcelain-fused-to-metal crown (for those in the control group, using a conventional pathway). The start of the implant prosthetic treatment was established as the baseline. Time-efficiency analysis was defined as the primary outcome, and was measured for every single clinical and laboratory work step in minutes. Statistical analysis was calculated with the Wilcoxon rank sum test. RESULTS All crowns could be provided within two clinical appointments, independent of the manufacturing process. The mean total production time, as the sum of clinical plus laboratory work steps, was significantly different. The mean ± standard deviation (SD) time was 185.4 ± 17.9 minutes for the digital workflow process and 223.0 ± 26.2 minutes for the conventional pathway (P = .0001). Therefore, digital processing for overall treatment was 16% faster. Detailed analysis for the clinical treatment revealed a significantly reduced mean ± SD chair time of 27.3 ± 3.4 minutes for the test group compared with 33.2 ± 4.9 minutes for the control group (P = .0001). Similar results were found for the mean laboratory work time, with a significant decrease of 158.1 ± 17.2 minutes for the test group vs 189.8 ± 25.3 minutes for the control group (P = .0001). CONCLUSION Only a few studies have investigated efficiency parameters of digital workflows compared with conventional pathways in implant dental medicine. This investigation shows that the digital workflow seems to be more time-efficient than the established conventional production pathway for fixed implant-supported crowns. Both clinical chair time and laboratory manufacturing steps could be effectively shortened with the digital process of intraoral scanning plus CAD/CAM technology.

Digital vs. conventional implant prosthetic workflows: a cost/time analysis.

OBJECTIVES The aim of this prospective cohort trial was to perform a cost/time analysis for implant-supported single-unit reconstructions in the digital workflow compared to the conventional pathway. MATERIALS AND METHODS A total of 20 patients were included for rehabilitation with 2 × 20 implant crowns in a crossover study design and treated consecutively each with customized titanium abutments plus CAD/CAM-zirconia-suprastructures (test: digital) and with standardized titanium abutments plus PFM-crowns (control conventional). Starting with prosthetic treatment, analysis was estimated for clinical and laboratory work steps including measure of costs in Swiss Francs (CHF), productivity rates and cost minimization for first-line therapy. Statistical calculations were performed with Wilcoxon signed-rank test. RESULTS Both protocols worked successfully for all test and control reconstructions. Direct treatment costs were significantly lower for the digital workflow 1815.35 CHF compared to the conventional pathway 2119.65 CHF [P = 0.0004]. For subprocess evaluation, total laboratory costs were calculated as 941.95 CHF for the test group and 1245.65 CHF for the control group, respectively [P = 0.003]. The clinical dental productivity rate amounted to 29.64 CHF/min (digital) and 24.37 CHF/min (conventional) [P = 0.002]. Overall, cost minimization analysis exhibited an 18% cost reduction within the digital process. CONCLUSION The digital workflow was more efficient than the established conventional pathway for implant-supported crowns in this investigation.

Argumentación, desplazamientos semánticos e imaginario cultural en Heródoto IX. 26-27

A partir de estrategias de análisis del discurso, el trabajo analiza la disputa erística que, según Heródoto, acaeció entre tegeatas y atenienses en las vísperas de la batalla de Platea (Hdt. IX. 26-7). Entendemos que la presunta simetría y regularidad en los dichos y contenidos de ambos discursos es en rigor engañosa en tanto que enmascara la contraposición de dos imaginarios culturales, representados por tegeatas y atenienses respectivamente. Dicho antagonismo se evidencia en un sutil proceso de desplazamientos semánticos por medio de los cuales Heródoto caracteriza de manera singular una y otra comunidad y el basamento ideológico-político sobre el que se sustentan.

A new approach for publishing workflows: abstractions, standards, and linked data

In recent years, a variety of systems have been developed that export the workflows used to analyze data and make them part of published articles. We argue that the workflows that are published in current approaches are dependent on the specific codes used for execution, the specific workflow system used, and the specific workflow catalogs where they are published. In this paper, we describe a new approach that addresses these shortcomings and makes workflows more reusable through: 1) the use of abstract workflows to complement executable workflows to make them reusable when the execution environment is different, 2) the publication of both abstract and executable workflows using standards such as the Open Provenance Model that can be imported by other workflow systems, 3) the publication of workflows as Linked Data that results in open web accessible workflow repositories. We illustrate this approach using a complex workflow that we re-created from an influential publication that describes the generation of 'drugomes'.

Automated attribute inference in complex service workflows based on sharing analysis

The properties of data and activities in business processes can be used to greatly facilítate several relevant tasks performed at design- and run-time, such as fragmentation, compliance checking, or top-down design. Business processes are often described using workflows. We present an approach for mechanically inferring business domain-specific attributes of workflow components (including data Ítems, activities, and elements of sub-workflows), taking as starting point known attributes of workflow inputs and the structure of the workflow. We achieve this by modeling these components as concepts and applying sharing analysis to a Horn clause-based representation of the workflow. The analysis is applicable to workflows featuring complex control and data dependencies, embedded control constructs, such as loops and branches, and embedded component services.