Vladimir Kolovski

Effective NL paraphrasing of ontologies on the semantic web (Technical Report (2009)

Daniel Hewlett, Aditya Kalyanpur, Vladimir Kolovski, Christian Halaschek-wiener

Abstract. In this paper, we present an algorithm that provides natural language (NL) paraphrases for OWL Ontologies on the Semantic Web. Our goal is to ensure both fluency (readability) and accuracy...

Mother, May I? OWL-based Policy Management at NASA (2008)

Michael A. Smith, Andrew J. Schain, Kendall Grant Clark, Vladimir Kolovski

Abstract. Among the challenges of managing NASA’s information systems is the management (that is, creation, coordination, verification, validation, and enforcement) of many different role-based...

A Logic-Based Framework for Web Access Control Policies (2008)

Kolovski, Vladimir

With the widespread use of web services, there is a need for adequate security and privacy support to protect the sensitive information these services could provide. As a result, there has been a...

Integrating Datalog with OWL: Exploring the AL-log approach (2008)

Edna Ruckhaus, Vladimir Kolovski, Bijan Parsia, Bernardo Cuenca

Abstract. We present OWL-log, which is an implementation of the ALlog hybrid knowledge representation system where the Description Logics component is extended to the Web Ontology Language OWL DL. We...

Mother, May I? OWL-based Policy Management at NASA (2008)

Michael A. Smith, Andrew J. Schain, Kendall Grant Clark, Vladimir Kolovski

Abstract. Among the challenges of managing NASA’s information systems is the management (coordination, verification and validation, and enforcement) of many different role-based access control...

WS-Policy and Beyond: Application of OWL Defaults to Web Service Policies (2008)

Vladimir Kolovski, Bijan Parsia

Abstract. Recently, there has been an increased amount of attention dedicated to WS-Policy- it has become a W3C submission and a working group was formed to standardize the specification. In our...

of the Rule Interchange Format Working Group (RIF [2]). One approach to (2008)

Vladimir Kolovski, Bijan Parsia, Evren Sirin

On the Semantic Web, there has been increasing demand for a ruleslike expressivity that goes beyond OWL-DL. Efforts of combining rules languages and description logics usually produce undecidable...

Online Information Services—Web-based services (2008)

Vladimir Kolovski

XACML has emerged as a popular access control language on the Web, but because of its rich expressiveness, it has proved difficult to analyze in an automated fashion. In this paper, we present a...

Online Information Services—Web-based services (2008)

Vladimir Kolovski

XACML has emerged as a popular access control language on the Web, but because of its rich expressiveness, it has proved difficult to analyze in an automated fashion. In this paper, we present a...

Representing Web Service Policies in OWL-DL (2006)

Kolovski, Vladimir, Parsia, Bijan, Katz, Yarden, Hendler, James

Recently, there have been a number of proposals for languages for expressing web service constraints and capabilities, with WS-Policy and WSPL leading the way. The proposed languages, although...

Implementing OWL Defaults (2006)

Kolovski, Vladimir, Parsia, Bijan, Katz, Yarden

While it has been argued that knowledge representation for the World Wide Web must respect the open world assumption due to the "open" nature of the Web, users of the Web Ontology Language (OWL) have...

Implementing owl defaults (2006)

Vladimir Kolovski, Bijan Parsia, Yarden Katz

Abstract. While it has been argued that knowledge representation for the World Wide Web must respect the open world assumption due to the “open ” nature of the Web, users of the Web Ontology...

Image browsing and natural language paraphrases of semantic web annotations (2006)

Christian Halaschek-wiener, Jennifer Golbeck, Bijan Parsia, Vladimir Kolovski, Jim Hendler

Abstract. Recently, there has been interest in marking up digital images with annotations describing the content of the images using Web based ontologies encoded in the W3C’s Web Ontology Language,...

Image browsing and natural language paraphrases of semantic web annotations (2006)

Christian Halaschek-wiener, Jennifer Golbeck, Bijan Parsia, Vladimir Kolovski, Jim Hendler

Abstract. Recently, there has been interest in marking up digital images with annotations describing the content of the images using Web based ontologies encoded in the W3C’s Web Ontology Language,...

Formalizing XACML Using Defeasible Description Logics (2006)

Vladimir Kolovski

XACML has emerged as a popular access control language on the Web, but because of its rich expressiveness, it has proved difficult to analyze in an automated fashion. Previous attempts to analyze...

Towards a policy-aware web (2005)

Vladimir Kolovski, Yarden Katz, James Hendler, Daniel Weitzner, Tim Berners-lee

Abstract. In this paper, we argue that a new generation of Policy-Aware Web (PAW) technology can hold the key for providing open, distributed and scalable information access on the World Wide Web....

Representing web service policies in owl-dl (2005)

Vladimir Kolovski, Bijan Parsia, Yarden Katz, James Hendler

Abstract. Recently, there have been a number of proposals for languages for expressing web service constraints and capabilities, with WS-Policy and WSPL leading the way. The proposed languages,...

Towards a policy-aware web (2005)

Vladimir Kolovski, Yarden Katz, James Hendler, Daniel Weitzner, Tim Berners-lee

Abstract. In this paper, we argue that a new generation of Policy-Aware Web (PAW) technology can hold the key for providing open, distributed and scalable information access on the World Wide Web....

Image Browsing and Natural Language Paraphrases of Semantic Web Annotations (1998)

Halaschek-Wiener, Christian, Golbeck, Jennifer, Parsia, Bijan, Kolovski, Vladimir, Hendler, Jim

Recently, there has been interest in marking up digital images with annotations describing the content of the images using Web-based ontologies encoded in the W3C's Web Ontology Language (OWL). The...