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The Fundamentals of iSPARQL: A Virtual Triple Approach For Similarity-Based Semantic Web Tasks
"... Abstract. This research explores three SPARQL-based techniques to solve Semantic Web tasks that often require similarity measures, such as semantic data integration, ontology mapping, and Semantic Web service matchmaking. Our aim is to see how far it is possible to integrate customized similarity fu ..."
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Abstract. This research explores three SPARQL-based techniques to solve Semantic Web tasks that often require similarity measures, such as semantic data integration, ontology mapping, and Semantic Web service matchmaking. Our aim is to see how far it is possible to integrate customized similarity functions (CSF) into SPARQL to achieve good results for these tasks. Our first approach exploits virtual triples calling property functions to establish virtual relations among resources under comparison; the second approach uses extension functions to filter out resources that do not meet the requested similarity criteria; finally, our third technique applies new solution modifiers to post-process a SPARQL solution sequence. The semantics of the three approaches are formally elaborated and discussed. We close the paper with a demonstration of the usefulness of our iSPARQL framework in the context of a data integration and an ontology mapping experiment. 1
Discovering scientific workflows: the myExperiment benchmarks
- IEEE Transactions on Automation Science and Engineering
, 2008
"... Abstract—Automation in science is increasingly marked by the use of workflow technology. The sharing of workflows through publication mechanisms or repositories supports the verifiability, reproducibility and extensibility of computational experiments. However, the subsequent discovery of workflows ..."
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Cited by 4 (0 self)
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Abstract—Automation in science is increasingly marked by the use of workflow technology. The sharing of workflows through publication mechanisms or repositories supports the verifiability, reproducibility and extensibility of computational experiments. However, the subsequent discovery of workflows remains a challenge, both from a technological and sociological viewpoint. We investigate current practices in workflow sharing, re-use and discovery amongst life scientists chiefly using the Taverna workflow management system. The study draws on two key sources: (i) a survey of researchers drawn from 19 research labs and (ii) an analysis of scientists ’ behaviour on the myExperiment social network site, designed to encourage workflow exchange. The results reveal a multi-modal approach to workflow discovery, based on a mix of search on the content of the workflow and its situated context. We go on to develop a benchmark specifically for the evaluation of workflow discovery and to demonstrate it on two example approaches.
S.: Modeling and Query Pattern for Process Retrieval in OWL
- In: Proc. of 8th International Semantic Web Conference (ISWC). Volume 5823., LNCS
, 2009
"... Abstract. Process modeling is a core task in software engineering in general and in web service modeling in particular. The explicit manage-ment of process models for purposes such as process selection and/or pro-cess reuse requires flexible and intelligent retrieval of process structures based on p ..."
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Abstract. Process modeling is a core task in software engineering in general and in web service modeling in particular. The explicit manage-ment of process models for purposes such as process selection and/or pro-cess reuse requires flexible and intelligent retrieval of process structures based on process entities and relationships, i.e. process activities, hierar-chical relationship between activities and their parts, temporal relation-ships between activities, conditions on process flows as well as the mod-eling of domain knowledge. In this paper, we analyze requirements for modeling and querying of process models and present a pattern-oriented approach exploiting OWL-DL representation and reasoning capabilities for expressive process modeling and retrieval. 1
Knowledge-Driven Querying Systems for Life Sciences Data
, 2010
"... Abstract. We compare two distinct approaches for querying data in the context of the life sciences. The first approach utilizes conventional databases to store the data and intuitive form-based interfaces to facilitate easy querying of the data. These interfaces could be seen as implementing a set o ..."
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Abstract. We compare two distinct approaches for querying data in the context of the life sciences. The first approach utilizes conventional databases to store the data and intuitive form-based interfaces to facilitate easy querying of the data. These interfaces could be seen as implementing a set of “pre-canned”
SEMANTIC WEB SERVICE DISCOVERY APPROACHES: OVERVIEW AND LIMITATIONS
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Ontology-Based Description and Discovery of Business Processes
"... Abstract. Just like web services, business processes can be stored in public repositories to be shared and used by third parties, e.g., as building blocks for constructing new business processes. The success of such a paradigm depends partly on the availability of effective search tools to locate bu ..."
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Abstract. Just like web services, business processes can be stored in public repositories to be shared and used by third parties, e.g., as building blocks for constructing new business processes. The success of such a paradigm depends partly on the availability of effective search tools to locate business processes that are relevant to the user purposes. A handful of researchers have investigated the problem of business process discovery using as input syntactical and structural information that describes business processes. In this work, we explore an additional source of information encoded in the form of annotations that semantically describe business processes. Specifically, we show how business processes can be semantically described using the so called abstract business processes. These are designated by concepts from an ontology which additionally captures their relationships. We show how this ontology can be built in an automatic fashion from a collection of (concrete) business processes, and we illustrate how it can be refined by domain experts and used in the discovery of business processes, with the purpose of reuse and increase in design productivity. 1
SUMMARY
"... Automation in science is increasingly marked by the use of workflow technology. The sharing of workflows through repositories supports the verifiability, reproducibility and extensibility of computational experiments. However, the subsequent discovery of workflows remains a challenge, both from a so ..."
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Automation in science is increasingly marked by the use of workflow technology. The sharing of workflows through repositories supports the verifiability, reproducibility and extensibility of computational experiments. However, the subsequent discovery of workflows remains a challenge, both from a sociological and technological viewpoint. Based on a survey with participants from 19 laboratories, we investigate current practices in workflow sharing, re-use and discovery amongst life scientists chiefly using the Taverna workflow management system. To address their perceived lack of effective workflow discovery tools, we go on to develop benchmarks for the evaluation of discovery tools, drawing on a series of practical exercises. We demonstrate the value of the benchmarks on two tools: one using graph matching, the other relying on text clustering. key words:
Modeling and Query Patterns for Process Retrieval in OWL
, 2009
"... Process modeling is a core task in software engineering in general and in web service modeling in particular. The explicit management of process models for purposes such as process selection and/or process reuse requires flexible and intelligent retrieval of process structures based on process ent ..."
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Process modeling is a core task in software engineering in general and in web service modeling in particular. The explicit management of process models for purposes such as process selection and/or process reuse requires flexible and intelligent retrieval of process structures based on process entities and relationships, i.e. process activities, hierarchical relationship between activities and their parts, temporal relationships between activities, conditions on process flows as well as the modeling of domain knowledge. In this paper, we analyze requirements for modeling and querying of process models and present a pattern-oriented approach exploiting OWL-DL representation and reasoning capabilities for expressive process modeling and retrieval.
Towards Integration of Semantically Enabled Service Families in the Cloud
"... Abstract. Success of a Software Product Line (SPL) typically induces increase of requirements that expand over the expertise of its initial company. In the context of cloud computing, where SPLs are deployed in the form of business process families that are offered over the Internet, this expansion ..."
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Abstract. Success of a Software Product Line (SPL) typically induces increase of requirements that expand over the expertise of its initial company. In the context of cloud computing, where SPLs are deployed in the form of business process families that are offered over the Internet, this expansion requires partnering with other available families. With the increasing number of companies that offer their solutions in the cloud, there is a need for tools and methods for integration of configurable business processes. In this position paper, we propose a methodology for integration that employs ontologies and Semantic Web technology, and propose a tool support that supports the proposed methodology. 1
