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Transformation of data with constraints for integration: An information system approach 1

作者： Shahriar, Md. Sumon Liu, Jixue Data and Web Engineering Lab School of Computer and Information Science University of South Australia SA-5095 Australia

ISBN: (数字)9783642105838

ISBN: (纸本)9783642105821

Transformation of data from different information systems is important and challenging for integration purposes as data can be stored and represented in different data models in different information systems. Moreover, when modeling data in the information systems, integrity constraints on the schemas are necessary for semantics and to maintain consistency purposes. Thus when schemas with conforming data are transformed from heterogeneous information systems, there is a need to transform and preserve semantics of data using constraints. In this paper, we propose how data from different source information systems can be transformed to a global information system. We also review how constraints in data transformation are used in data integration for the purpose of integrating information systems. Our research is towards the handling of semantics using integrity constraints in data integration from heterogeneous information systems. © 2009 Springer-Verlag Berlin Heidelberg.

关键词： information systems

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Preserving referential integrity constraints in XML data transformation 1

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作者： Shahriar, Md. Sumon Liu, Jixue School of Computer and Information Science Data and Web Engineering Lab University of South Australia Adelaide SA-5095 Australia

ISBN: (数字)9783642105838

ISBN: (纸本)9783642105821

We study the transformation and preservation of XML referential integrity constraints in XML data transformation for integration purposes in this paper. In transformation and preservation, we consider XML inclusion dependency and XML foreign key. We show how XML referential constraints should be transformed and preserved using important transformation operations with sufficient conditions. © 2009 Springer-Verlag Berlin Heidelberg.

关键词： XML

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Reports of the AAAI 2010 conference workshops

Reports of the AAAI 2010 conference workshops

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作者： Aha, David W. Boddy, Mark Bulitko, Vadim D'Avila Garcez, Artur S. Doshi, Prashant Edelkamp, Stefan Geib, Christopher Gmytrasiewicz, Piotr Goldman, Robert P. Halevy, Alon Hitzler, Pascal Isbell, Charles Josyula, Darsana Kaelbling, Leslie Pack Kersting, Kristian Kunda, Maithilee Lamb, Luis C. Marthi, Bhaskara McGreggor, Keith Mihalkova, Lilyana Nastase, Vivi Natarajan, Sriraam Provan, Gregory Raja, Anita Ram, Ashwin Riedl, Mark Russell, Stuart Sabharwal, Ashish Smaus, Jan-Georg Sukthankar, Gita Tuyls, Karl Van Der Meyden, Ron Adaptive Systems Section Naval Research Laboratory Washington DC United States Adventium Labs. Minneapolis MN United States Department of Computer Science University of Alberta Canada City University London United Kingdom University of Georgia United States University of Bremen Germany School of Informatics University of Edinburgh United Kingdom University of Illinois Chicago United States Smart Information Flow Technologies LLC Minneapolis MN United States Structured Data Group Google Research United States Department of Computer Science Wright State University Dayton OH United States School of Interactive Computing Georgia Institute of Technology Atlanta GA United States Department of Computer Science Bowie State University United States Department of Computer Science and Engineering Massachusetts Institute of Technology United States Statistical Relational Mining Group Fraunhofer IAIS Germany Department of Computer Science Federal University of Rio Grande Do sul Brazil Willow Garage Inc. CA United States Computer Science Department University of Maryland College Park United States Heidelberg Institute for Theoretical Studies Heidelberg Germany Department of Computer Science University of Wisconsin Madison United States University College Cork Ireland Cork Complex Systems Lab. Ireland Department of Software and Information Systems University of North Carolina Charlotte United States Department of Computer Science and Engineering University of California Berkeley United States Department of Computer Science Cornell University United States Institute for Computational Sustainability United States University of Freiburg Germany School of Electrical Engineering and Computer Science University of Central Florida United States Maastricht University Netherlands University of New South Wales NICTA Australia

The AAAI-10 workshop program was held on July 11-12, 2010, at the Westin Peachtree Plaza in Atlanta, Georgia. The workshop program included 13 workshops covering a wide range of topics in artificial intelligence. There were several presentations on particular formalisms for combining the levels of planning from the perspectives of classical planning, motion planning, POMDPs, search-based planning, and temporal logic-based constraints. Henry Lieberman from Massachusetts Institute of Technology Media laboratory presented work developing a platform for knowledge acquisition and usage from expert users, built upon experience with eliciting information from nonexperts in a collaborative manner. The objective of the AAAI Workshop on Goal-Directed Autonomy (GDA) was to encourage discussion and novel contributions on intelligent agents that can self-select their goals. Jeremy Baxter from QinetiQ focused on user interaction, while Nick Hawes described a goal-directed reasoning framework for controlling a mobile robot.

关键词： Motion planning

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On Defining Functional Dependency for XML

On Defining Functional Dependency for XML

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International Conference on Semantic Computing

作者： Md. Sumon Shahriar Jixue Liu Data and Web Engineering Lab School of Computer and Information Science University of South Australia Adelaide SA Australia

ISBN: (纸本)9781424449620

Functional dependency (FD) is one of the integrity constraints for any data model. In relational data model, FDs are well studied and are widely used in normalization theory and in key algorithm. In recent years, XML has emerged as an widely used data representation and storage format over the world wide web. The growing use of XML has necessitated the XML document semantically stronger. XML functional dependency can be one of the ways to make the XML data semantically richer. In this paper, we propose XML functional dependency (XFD), specially for the purpose of XML data transformation for semantic integration of schemas with integrity constraints. While proposing, we show how XFD is defined on the XML Document Type Definition (DTD) and is satisfied by the XML documents. We introduce the novel concept 'tuple' that produces the semantically correct tuples in the XML document during XFD satisfaction. We show that XML key is a special case of XFD. We also discuss the advantages of our proposal over other previous XFD definitions.

关键词： XML

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Asymmetric group key agreement

Asymmetric group key agreement

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28th Annual International Conference on the Theory and Applications of Cryptographic Techniques, EUROCRYPT 2009

作者： Qianhong, Wu Yi, Mu Susilo, Willy Bo, Qin Domingo-Ferrer, Josep Universitat Rovira i Virgili Dept. of Comp. Eng. and Maths UNESCO Department of Data Privacy Tarragona Catalonia Spain Key Lab. of Aerospace Information Security and Trusted Computing School of Computer Wuhan University China Centre for Computer and Information Security Research School of Computer Science and Software Engineering University of Wollongong Australia Dept. of Maths School of Science Xi'an University of Technology China

ISBN: (纸本)3642010008

A group key agreement (GKA) protocol allows a set of users to establish a common secret via open networks. Observing that a major goal of GKAs for most applications is to establish a confiDential channel among group members, we revisit the group key agreement definition and distinguish the conventional (symmetric) group key agreement from asymmetric group key agreement (ASGKA) protocols. Instead of a common secret key, only a shared encryption key is negotiated in an ASGKA protocol. This encryption key is accessible to attackers and corresponds to different decryption keys, each of which is only computable by one group member. We propose a generic construction of one-round ASGKAs based on a new primitive referred to as aggregatable signaturebased broadcast (ASBB), in which the public key can be simultaneously used to verify signatures and encrypt messages while any signature can be used to decrypt ciphertexts under this public key. Using bilinear pairings, we realize an efficient ASBB scheme equippe d with useful properties. Following the generic construction, we instantiate a one-round ASGKA protocol tightly reduced to the decision Bilinear Diffie-Hellman Exponentiation (BDHE) assumption in the standard model. © International Association for Cryptologic Research 2009.

关键词： Public key cryptography

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On Defining Keys for XML

On Defining Keys for XML

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IEEE International Conference on computer and information Technology Workshops, CIT

作者： Md. Sumon Shahriar Jixue Liu Data and Web Engineering Lab School of Computer and Information Science University of South Australia SA Australia

Keys are an important part of any data model. In relational model, keys are well studied and are widely used. In recent years, XML has emerged as an widely used data representation and storage format in the world wide web. The data centric approach of XML has necessitated the definition of integrity constraints for XML. XML key is regarded as one of those integrity constraints. In this paper, we define XML keys, specifically for the purpose of XML data transformation and integration with integrity constraints. In the proposal, we show how XML keys are defined on the XML document type definition (DTD) and are satisfied by the XML documents. We introduce the novel concept P-tuple (pair-wise tuple) that produces semantically correct tuples in the XML document during key satisfaction. Our definition for XML keys can also be extended to XML relative keys. Finally, we discuss how our proposal for XML keys has some advantages over other previous proposals and standards.

关键词： XML Proposals data models web sites information technology Conferences data engineering information science Australia database systems

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Transition of Keys in XML data Transformation

Transition of Keys in XML Data Transformation

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International Symposium on computer Science and its Applications, CSA

作者： Md. Sumon Shahriar Jixue Liu Data and Web Engineering Laboratory School of Computer and Information Science University of South Australia Adelaide SA Australia

Transformation of a source schema to a target schema is an important activity in data integration. In XML data transformation for data integration purposes, when an XML source schema with its conforming data is transformed to the target XML schema, one of the important XML constraints, XML keys that are defined on the source schema for expressive semantics can also be transformed. Thus, whether keys should be transformed and preserved, and if not preserved, whether keys can be captured in another form of XML constraints are important questions. To answer these questions, first, we define XML keys and XML functional dependencies(XFD) on document type definition (DTD). Second, we show key preservation in transformation. If keys are not preserved, we then show how to capture them as XFDs. We term this as key transition. Our research about the XML key preservation and transition is towards handling the issues of integrity constraints in XML data integration.

关键词： XML Chemical elements Physics Chemistry Transforms Australia Communities

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On Defining Referential Integrity for XML

On Defining Referential Integrity for XML

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International Symposium on computer Science and its Applications, CSA

作者： Md. Sumon Shahriar Jixue Liu Data and Web Engineering Laboratory School of Computer and Information Science University of South Australia Adelaide SA Australia

Referential integrity is one of the integrity constraints for any data model. In relational data model, inclusion dependency (ID) and foreign key (FK) are well studied and are widely used. In last decade, with the growing use of XML as data representation and exchange format over the web, the issue of integrity constraints in XML has received great importance to the database community. In this paper, we propose XML inclusion dependency (XID) and XML foreign key(XFK). When proposing, we show how both XID and XFK can be defined over the Document Type Definition (DTD) and are satisfied by the XML documents. We introduce a novel concept tuple that produces semantically correct values in the XML documents when satisfactions are checked. We also show that XFK is defined with the combination of XID and XML key.

关键词： XML data models Relational databases Australia databases Communities information science

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Automatic Recommendations for E-Learning Personalization Based on web Usage Mining Techniques and information Retrieval

Automatic Recommendations for E-Learning Personalization Bas...

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International Conference on Advanced Learning Technologies (ICALT)

作者： Mohamed Koutheaïr Khribi Mohamed Jemni Olfa Nasraoui Technologies of Information and Communication Lab University of Tunis Tunis Bab Mnara TUNISIA Knowledge Discovery & Web Mining Lab Department of Computer Engineering & Computer Science Speed School of Engineering University of Louisville Louisville KY USA

The World Wide web (WWW) is becoming one of the most preferred and widespread mediums of learning. Unfortunately, most of the current web-based learning systems are still delivering the same educational resources in the same way to learners with different profiles. A number of past efforts have dealt with e-learning personalization, generally, relying on explicit information. In this paper, we aim to compute on-line automatic recommendations to an active learner based on his/her recent navigation history, as well as exploiting similarities and dissimilarities among user preferences and among the contents of the learning resources. First we start by mining learner profiles using web usage mining techniques and content-based profiles using information retrieval techniques. Then, we use these profiles to compute relevant links to recommend for an active learner by applying a number of different recommendation strategies.

关键词： Electronic learning information retrieval Navigation information filtering information filters Uniform resource locators data mining Knowledge engineering History Collaboration

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Abstracts

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Environmental Management 1977年第1期1卷 67-96页

作者： Frankenfeld, John W. Schulz, Wolfgang McMurty, George J. Petersen, Gary W. May, G. A. Hering, F. S. Schwartz, J. I. Heywood, J. B. Chigier, N. A. Grohse, E. W. Walker, J. D. Colwell, R. R. Petrakis, L. Pergament, H. S. Thorpe, R. D. Schoepf, Richard W. Krzyczkowski, Roman Henneman, Suzanne S. Hudson, Charles L. Putnam, Evelyn S. Thiesen, Donna J. Parks, G. A. McCarty, Perry L. Leckie, J. O. Schrumpf, Barry J. Simonson, G. H. Paine, D. P. Lawrence, R. D. Pyott, W. T. Leh, M. Elders, W. Combs, J. Caplen, T. Harrison, F. L. Wong, K. M. Heft., R. E. Charnell, Robert L. Lehmann, Edward J. Mallon, Lawrence G. Hatfield, Cecile Adams, Gerald H. Johanning, James Talvitie, Antti Noll, Kenneth E. Miller, Terry Smiarowski, Joseph F. Willis, Cleve E. Foster, John H. Schlesinger, Benjamin Daetz, Douglas Lear, Donald U. Smith, Mona F. Hundemann, Audrey S. Crockett, Pernell W. Werner, Kirk G. Carroll, Thomas E. Maase, David L. Genco, Joseph E. Ifeadi, Christopher N. Lowman, F. G. Christensen, S. W. Van Winkle, W. Mattice, J. S. Harrison, Elizabeth A. Barker, James C. Chesness, Jerry L. Smith, Ralph E. Shaheeen, Donald G. Raney, R. Keith Borton, T. Wezernak, C. T. Raney, R. K. Sherwani, Jabbor K. Moreau, David H. Eisenberg, Norman A. Lynch, Cornelius J. Breeding, Roger J. Johnson, J. D. Foster, K. E. Mouat, D. A. Clark, R. Hyden, John William Owen, Wilfred Bayfield, Neil G. Barrow, Graham C. Stolz, Stephanie B. Wienckowski, Louis A. Brown, Betram S. Keyfitz, Nathan Wilson, W. L. Newman, Peter W. G. Bammi, Deepak Bammi, Dalip Goddard, James E. Chisholm, Tony Walsh, Cliff Brennan, Geoffrey Thompson, K. S. Richardson, R. Jensen, Clayton E. Brown, Dail W. Mirabito, John A. Cowing, Thomas G. Binghamton, Suny Siehl, George H. Albrecht, O. W. Alexander, Ariel Barde, Jean -Philippe Darby, William P. McMichael, Francis Clay Dunlap, Robert W. Muckleston, Keith W. Frankenhoff, Charles A. Giulini, Lorenzo T. Wyatt, T. Black, Peter E. Keating, William Thomas Leonard, M. E. Fisher, E. L. Brunelle, M. F. Dickinson, J. E. Pethig, Rudiger Clapham Exxon Research & Engineering Co. Linden Government Research Lab Coast Guard Washington D.C. Department of Transportation Washington D.C. Office For Remote Sensing of Earth Resources. NASA Earth Resources Survey Program Pennsylvania State University Washington D.C. Department of the Navy Washington D.C. Cambridge. Dept. of Mechanical Engineering Massachusetts Inst. of Technology USA Huntsville. School of Graduate Studies and Research Alabama Univ. USA Dept. of Microbiology. Office of Naval Research Maryland Univ. Arlington Research and Development Co. Pittsburgh AeroChem Research Labs. Inc. Princeton Dept. of the Interior Office of Library Services. Bibliographic Series (Final) Washington D.C. Interplan Corp. Santa Barbara Urban Mass Transportation Adm. Washington D.C. Naval Underwater Systems Center Newport Calif. Mercury Project. National Science Found Stanford Univ Washington D.C. Div. of Advanced Environmental Research & Tech. USA Corvallis. NASA Earth Resources Survey Program Oregon State Univ. Washington D.C. Riverside. Inst. of Geophysics and Planetary Physics National Science Foundation California Univ. Washington D.C. Livermore Lawrence Livermore Lab. California Univ. USA Atlantic Oceanographic and Meteorological Labs. National Oceanic and Atmospheric Administration Miami National Technical Information Service Springfield Miami Univ. Coral Gables School of Law National Oceanic and Atmospheric Administration Rockville National Academy of Sciences Office of Sea Grant Washington D. C. School of Law National Oceanic and Atmospheric Administration Office of Sea Grant. Rockville Norman. Dept. of Civil Engineering and Environmental Science. Urban Mass Transportation Administration Oklahoma Univ. Washington D. C. Knoxville.Dept. of Civil Engineering. Federal Highway Administration Tennessee Univ. Washington D. C. Amherst.Water Resources Research Center. Office of Water Research and Technology Massachusetts Univ. Washington D. C. Calif. Dept. of Industria

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