Maria Beatriz Felgar de Toledo

Bio: Maria Beatriz Felgar de Toledo is an academic researcher from State University of Campinas. The author has contributed to research in topics: Web service & Business process. The author has an hindex of 8, co-authored 49 publications receiving 294 citations.

Semantics-enriched QoS policies for web service interactions

Abstract: Web service technology provides an infrastructure for developing distributed systems and performing electronic business operations within and across organizational boundaries. It is still evolving. Currently, it is lacking mechanisms to deal with Quality of Service (QoS). Service consumer requirements may include functional and non-functional aspects. The Web Services Description Language (WSDL) and Universal Description Discovery & Integration (UDDI) standards support the specification, publication and discovery of Web services based only on functional aspects. The goal of this paper is to propose an approach for supporting Web service interactions. Brokers are employed to facilitate the partnership establishment between service consumers and providers. They select services in UDDI registries according to consumer functional and non-functional requirements. The main contributions of this paper are an extension to the Web Services Policy Framework (WS-Policy) standard to complement WSDL descriptions with semantics-enriched QoS policies using the Ontology Web Language (OWL) and ABLE Rule Language (ARL) standards, and an extension to the UDDI standard to include QoS policies.

Ws-contract establishment with qos: an approach based on feature modeling

Abstract: Electronic contracts describe inter-organizational business processes in terms of supply and consumption of electronic services (commonly Web services). The establishment of e-contracts in a particular business domain usually involves a set of well-defined common and variable properties. These properties are not fully exploited by the existing e-contract establishment approaches. Feature modeling is a software engineering technique that has been widely used for capturing and managing commonalities and variabilities of product families in the context of software product line. This paper presents a feature-based approach to support Web services e-contract (WS-contract) establishment. The approach aims at improving the information structure and reuse of WS-contracts, including the QoS attributes. Features are used to represent possible WS-contract elements in order to drive WS-contract template instantiation, thus acting as a configuration space manager. A toolkit named FeatureContract was developed to autom...

A survey on reuse in the business process management domain

Abstract: Business process management (BPM) is an important technological support to improve organisation competitiveness BPM can benefit from reuse approaches and techniques at several stages of the business process life cycle in order to increase dynamism, flexibility and competitiveness Existing reuse techniques from areas such as software engineering can be extended to this emerging domain This paper presents the results of a literature review of reuse in the BPM domain It aims to provide an overview and an overall discussion of most relevant research projects that have been developed applying reuse in BPM

Towards a base ontology for privacy protection in service-oriented architecture

Abstract: The service consumer's confidence in the protection of their privacy is an important factor for the success of electronic services (e-services). It may increase if the service provider offers a description of its data practices. This description can be compared to what the consumer defines as appropriate practices. To allow the exchange of privacy-related descriptions and automatically compare them, the parties involved in the interaction should be able to use a common vocabulary. The goal of this paper is to present a base privacy ontology for e-services and a privacy framework for service-oriented architecture (SOA). The ontology offers a base vocabulary that can be extended to create ontologies specific to a given service domain and operating environment. The framework uses ontologies so that it can support service selection considering the consumer's privacy requirements. It extends SOA with provider policies and consumer preferences based on privacy ontologies.

Web information systems engineering-- WISE 2005 : 6th International Conference on Web Information Systems Engineering, New York, NY, USA, November 20-22, 2005 : proceedings

Abstract: Web Mining.- Mining Communities on the Web Using a Max-Flow and a Site-Oriented Framework.- A Web Recommendation Technique Based on Probabilistic Latent Semantic Analysis.- Constructing Interface Schemas for Search Interfaces of Web Databases.- Web Information Retrieval.- Temporal Ranking of Search Engine Results.- Evaluation of Result Merging Strategies for Metasearch Engines.- Decomposition-Based Optimization of Reload Strategies in the World Wide Web.- Metadata Management.- An Ontological Approach for Defining Agents for Collaborative Applications.- Improving Web Data Annotations with Spreading Activation.- Semantic Partitioning of Web Pages.- Ontology and Semantic Web.- A Formal Ontology Reasoning with Individual Optimization: A Realization of the Semantic Web.- oMAP: Combining Classifiers for Aligning Automatically OWL Ontologies.- Semantic Web Technologies for Interpreting DNA Microarray Analyses: The MEAT System.- XML.- Extracting Global Policies for Efficient Access Control of XML Documents.- Querying and Repairing Inconsistent XML Data.- Towards Automatic Generation of Rules for Incremental Maintenance of XML Views of Relational Data.- Web Service Method.- A Methodological Approach for Incorporating Adaptive Navigation Techniques into Web Applications.- A Web Service Support to Collaborative Process with Semantic Information.- Server-Side Caching Strategies for Online Auction Sites.- Web Service Structure.- Maintaining Consistency Under Isolation Relaxation of Web Services Transactions.- Binding and Execution of Web Service Compositions.- Handling Transactional Properties in Web Service Composition.- Collaborative Methodology.- XFlow: An XML-Based Document-Centric Workflow.- Optimization of XSLT by Compact Specialization and Combination.- Extracting Web Data Using Instance-Based Learning.- P2P, Ubiquitous and Mobile.- PRoBe: Multi-dimensional Range Queries in P2P Networks.- An Infrastructure for Reactive Information Environments.- LoT-RBAC: A Location and Time-Based RBAC Model.- Document Retrieval Applications.- Document Re-ranking by Generality in Bio-medical Information Retrieval.- Representing and Reasoning About Privacy Abstractions.- Conceptual Query Refinement: The Basic Model.- Short Paper Session 1: Web Services and E-Commerce.- Peer-to-Peer Technology Usage in Web Service Discovery and Matchmaking.- A Contract-Based Approach for Monitoring Collaborative Web Services Using Commitments in the Event Calculus.- Asynchronous Web Services Communication Patterns in Business Protocols.- Towards the Automation of E-Negotiation Processes Based on Web Services - A Modeling Approach.- Modeling of User Acceptance of Consumer E-Commerce Website.- Short Paper Session 2: Recommendation and Web Information Extraction.- A Collaborative Recommender System Based on User Association Clusters.- Space-Limited Ranked Query Evaluation Using Adaptive Pruning.- Automated Retraining Methods for Document Classification and Their Parameter Tuning.- NET - A System for Extracting Web Data from Flat and Nested Data Records.- Blog Map of Experiences: Extracting and Geographically Mapping Visitor Experiences from Urban Blogs.- Short Paper Session 3: P2P, Grid and Distributed Management.- Reliable Multicast and Its Probabilistic Model for Job Submission in Peer-to-Peer Grids.- Peer-Sensitive ObjectRank - Valuing Contextual Information in Social Networks.- Automatic Performance Tuning for J2EE Application Server Systems.- Xebu: A Binary Format with Schema-Based Optimizations for XML Data.- Maintaining Versions of Dynamic XML Documents.- Short Paper Session 4: Advanced Issues.- Identifying Value Mappings for Data Integration: An Unsupervised Approach.- Relaxing Result Accuracy for Performance in Publish/Subscribe Systems.- Using Non-random Associations for Predicting Latency in WANs.- An Online Face Recognition System Using Multiple Compressed Images over the Internet.- The Information Market: Its Basic Concepts and Its Challenges.- Poster Flash Session 1.- List Data Extraction in Semi-structured Document.- Optimization Issues for Keyword Search over Tree-Structured Documents.- Semantic Integration of Schema Conforming XML Data Sources.- Extract Salient Words with WordRank for Effective Similarity Search in Text Data.- Intensional P2P Mappings Between RDF Ontologies.- Meta-modeling of Educational Practices for Adaptive Web Based Education Systems.- An On-line Intelligent Recommendation System for Digital Products Using Fuzzy Logic.- Consensus Making on the Semantic Web: Personalization and Community Support.- Dictionary-Based Voting Text Categorization in a Chemistry-Focused Search Engine.- Poster Flash Session 2.- An Approach to Securely Interconnect Geo Web Services.- Automatic Keyword Extraction by Server Log Analysis.- Approximate Intensional Representation of Web Search Results.- A Unique Design for High-Performance Decentralized Resources Locating: A Topological Perspective.- Searching the Web Through User Information Spaces.- REBIEX: Record Boundary Identification and Extraction Through Pattern Mining.- Discovering the Biomedical Deep Web.- A Potential IRI Based Phishing Strategy.- Multiway Iceberg Cubing on Trees.- Industry-1: Semantic Web.- Building a Semantic-Rich Service-Oriented Manufacturing Environment.- Building a Semantic Web System for Scientific Applications: An Engineering Approach.- A SOAP Container Model for e-Business Messaging Requirements.- Industry-2: SOA.- An Empirical Study of Security Threats and Countermeasures in Web Services-Based Services Oriented Architectures.- Collaborative End-Point Service Modulation System (COSMOS).- A Process-Driven e-Business Service Integration System and Its Application to e-Logistics Services.- Industry-3: BPM.- BPM and SOA: Synergies and Challenges.- Web Performance Indicator by Implicit User Feedback - Application and Formal Approach.- Discovering the Most Frequent Patterns of Executions in Business Processes Described in BPEL.- CONFIOUS: Managing the Electronic Submission and Reviewing Process of Scientific Conferences.- Industry-4: Web Infrastructure.- Tool Support for Model-Driven Development of Web Applications.- Web Personalization: My Own Web Based on Open Content Platform.- An Effective Approach for Content Delivery in an Evolving Intranet Environment - A Case Study of the Largest Telecom Company in Taiwan.- Achieving Decision Consistency Across the SOA-Based Enterprise Using Business Rules Management Systems.- Tutorials and Panels.- Service Design, Implementation and Description (Tutorial).- WISE-2005 Tutorial: Web Content Mining.- An Introduction to Data Grid Management Systems.- Are We Ready for the Service Oriented Architecture?.- Poster.- Data Engineering Approach to Design of Web Services.

Creation of Smart-Contracting Collaborations for Decentralized Autonomous Organizations

Abstract: Electronic communities of decentralized autonomous organizations (DAO) that engage in agile business-network collaborations, are enabled by recent blockchain-technology related innovations using smart contracting. DAOs utilize service-oriented cloud computing in a loosely-coupled collaboration lifecycle that commences with the setup phase. The latter supports the selection of services provided and used by DAOs in combination with smart contract negotiations. Such setup phases for DAO-communities use blueprints of business-network models that DAOs populate with tentative service offers. The negotiation phase may result either in a consensual agreement, a counteroffer, or a disagreement. In the latter case, the smart contract negotiation collapses and the lifecycle returns to the beginning of the selected collaboration blueprints. To the best of our knowledge, such a smart-contracting setup lifecycle has not been formalized so far. The paper fills the gap and evaluates the model with means of model-checking methods.

Markov-HTN Planning Approach to Enhance Flexibility of Automatic Web Service Composition

Abstract: Automatic Web services composition can be achieved by using AI planning techniques. HTN planning has been adopted to handle the OWL-S Web service composition problem. However, existing composition methods based on HTN planning have not considered the choice of decompositions available to a problem which can lead to a variety of valid solutions.In this paper, we propose a model of combining a Markov decision process model and HTN planning to address Web services composition. In the model, HTN planning is enhanced to decompose a task in multiple ways and hence be able to find more than one plan,taking both functional and non-functional properties into account. Furthermore, an evaluation method to choose the optimal plan and some experimental results illustrate that the proposed approach works effectively.