Publication

Refereed Journal Papers

Y. Chen, and Y.B. Chen, Subtree Reconstruction, Query Node Intervals and Tree Pattern Query Evaluation, Journal of Information Science and Engineering, Vol. 28, N0. 2, 263 - 293.

Y. Chen and L. Zou, Unordered tree matching: the evaluation of tree pattern queries, Int. J. Information Technology, Communications and Convergence, 2011, Vol. 1, No. 3, pp. 25-279.

Y. Chen, A New Algorithm for the Subset Matching Problem, Journal of Computer Science, 3(12):924-933, Science Publication, 2007, pp. 924-933.

Y. Chen, An Efficient Algorithm for Tree Matching in XML Databases, Journal of Computer Science, 3(7):487-493, Science Publication, 2007, pp. 487-493.

Y. Chen and Y.B. Chen, On the Signature Tree Construction and Analysis, IEEE Transaction on Knowledge and Data Engineering, Vol. 18, No. 9, 2006, pp. 1207-1224.

Y. Chen and Y.B. Chen, Average Time Analysis: Searching a Signature Tree, IEEE Transaction on Knowledge and Data Engineering: Computer Society Digital Libaray, http://computer.org/tkde/archives.html.

Y. Chen, On the Stack Encoding and Twig Joins, WSEAS Transactions on Information Science & Applications, Vol. 3, No. 10, October 2006, pp. 1865-1872.

Y. Chen and Y.B. Chen, A New Tree Inclusion Algorithm, Information Processing Letters 98 (2006), pp. 253-262.

Y. Chen, On the Costs of Searching Signature Trees, Information Processing Letters 99 (2006) pp. 19-26.

Y. Chen and D. Che, Efficient Processing of XML Tree Pattern Queries, Journal of Advanced Computational Intelligence and Intelligent Informatics, Vol. 10, No. 5, pp. 738-743.

Y. Chen and D. Che, Efficient Processing of XML Tree Pattern Queries with Integrity Constraints, Journal of Advanced Computational Intelligence and Intelligent Informatics, Vol. 10, No. 5, pp. 774-751.

Y. Chen, A Space-Economic Representation of Transitive Closures in Relational Databases, Journal of Systemics, Cybernetics and Informatics, Vol. 4, No. 5, 2006, pp.1-12.

Y. Chen, Building Signature Trees into OODBs, Journal of Information Science and Engineering, 20, 275-304 (2004).

Y. Chen, Graph Traversal and Binary-chain Programs, IEEE Transaction on Knowledge and Data Engineering. Vol. 15, No. 3, pp. 573-596, 2003.

Y. Chen, Signature Files and Signature Trees, Information Processing Letters, Vol. 82, No. 4, March 2002, pp. 213-221.

Y. Chen, A Systematic Method for Query Evaluation in Distributed Heterogeneous Relational Databases, Journal of Information Science and Engineering, Vol. 16, No. 4, 2000, pp. 463-497.

Y. Chen, On the Integeration of Heterogeneous OO Schemas, Journal of Information Science and Engineering, Vol. 16, No. 4, 2000, pp. 555-592.

Y. Chen, Arc Consistency Revisited, Information Processing Letters 70(1999) 175-184, Elsevier Science B.V.

Y. Chen, On the Graph Traversal Method for Evaluating Linear Binary-chain Programs, Science in China, Gordon and Breach Science Publisher, Vol. 42, No. 3 (Series E), 1999, pp. 225-243.

Y. Chen, On the Arc Consistency Problem, Journal of Computer Science and Technology, Allerton Press, Vol. 14. No. 4, July 1999, pp. 298-308.

Y. Chen, OLDTNF-based Evaluation Method for Handling Recursive Queries in Deductive Databases, Science in China, Gordon and Breach Science Publisher, Vol. 41, No. 6 (Series E), Dec. 1998, pp. 561-578.

Y. Chen, Magic Sets Revisited, Journal of Computer Science and Technology, Allerton Press, Vol. 12, No. 4, July 1997, pp. 346-365.

Y. Chen, Graph Traversal and Top-down Evaluation of Recursive Queries, Journal of Computer Science and Technology, Allerton Press, Vol. 13, No. 4, July 1998, pp. 300-316.

Y. Chen, Magic Sets and Stratified Databases, Int. Journal of Intelligent Systems, John Wiley & Sons, Ltd., Vol. 12, No. 3, pp. 203-231, 1997.

Y. Chen, On the Bottom-up Evaluation of Recursive Queries, Int. Journal of Intelligent Systems, John Wiley & Sons, Ltd., Vol. 11, No. 10, 807-832, 1996.

Y. Chen, Integrating Graph Traversal into the Top-down Evaluation of Recursive Queries, Journal of Computer and System Science, being under consideration, subject to revision.

Y. Chen, Applying Tarjan's Algorithm to Evaluation of Logic Programs, in Proc. of 9th Int. Conf. on Computing and Information, Winnipeg, Manitoba, Canada, June 1998, pp. 183-190; to appear also in a Special Issue of Journal of Computing and Information.

Y. Chen, Counting and Topological Order, Journal of Computer Science and Technology, Allerton Press, Vol. 12, No. 6, Nov. 1997, pp. 497-509.

Benn, Y. Chen and I. Gringer, FSM: A Federated System Manager, Zeitschrift: Datenbank Rundbrief, Germany, May 1996, pp. 144-153.

Y. Chen, A Recursive Inference Reasoning Algorithm, Journal of Computer Research and Development, China, 1992, 29(07): 6-10 (in Chinese).

Y. Chen, The Application of Fuzzy Logic to the Computer-based Medical Diagnosis System, Academical Journal of the University of National Science and Technology, China, Vol. 58, No. 2, pp. 107-111, 1987 (in Chinese).

Y. Chen, A Reasoning Method Used for Computer-based Medical Diognosis System, Academical Journal of the University of National Science and Technology, China, Vol. 57, No. 1, pp. 76-80, 1986 (in Chinese).

Book Chapters

Y. Chen, A New Algorithm for Minimizing Tree Pattern Queries, in Encyclopedia of Information and Communication Technology, ed. A. Cartelli and M. Palma, Information Science Reference, New York, 2008, 607-615.

Y. Chen, A New Algorithm for Subset Matching Problem Based on Set-String Transformation, in Encyclopedia of Information and Communication Technology, ed. A. Cartelli and M. Palma, Information Science Reference, New York, 2008, 598-606.

Y. Chen, An Overview on Signature File Techniques, accepted by the 2nd edition Encyclopedia of database and Technologies Applications, 2008.

Y. Chen, On the Query Evaluation in XML Databases, accepted by the 2nd edition Encyclopedia of database and Technologies Applications, 2008.

Y. Chen, Graph Encoding and Transitive Closure Represntation, in Encyclopedia of Database Technologies and Applications, Idea Group Inc. (2nd edition) 2008, pp. 69-80.

Y. Chen, On the path-oriented query evaluation in document databases, in Encyclopedia of Database Technologies and Applications, Idea Group Inc., 2005, pp. 472-479.

Y. Chen and Y. Shi, Signature Files and Signature File Construction, in Encyclopedia of Database Technologies and Applications, Idea Group Inc., 2005, pp. 638-645.

Y. Chen and G. Huck, Building Pat-trees for Path Signatures in Document Databases, in the book Effective Databases for Text & Document Management, ed. S. A. Becker, IRM Press, 2003, pp. 53-73.

Y. Chen, On the Computation of Recursion in Relational Databases, in the book Effective Databases for Text & Document Management, ed. S. A. Becker, IRM Press, 2003, pp. 263-277.

Y. Chen, Graph Encoding and Recursion Computation, in Encyclopedia of Information Science and Technology I-V, Idea Group Inc., 2005, pp. 1309-1316.

Refereed Conference Papers

Y. Chen and Y.B. Chen, Decomposing DAGs into spanning trees: A new way to compress transitive closures, in Proc. 27th Int. Conf. on Data Engineering (ICDE 2011), IEEE, April 2011, pp. 1007-1018.

Y. Chen, General Spanning Trees and Reachability Query Evaluation, in Proc. C3S2E 2009: 243-252, IEEE, 2009, pp. 243-252.

Y. Chen and Y.B. Chen, An Efficient Algorithm for Answering Graph Reachability Queries, in Proc. 24th Int. Conf. on Data Engineering (ICDE 2008), IEEE, April 2008, pp. 892-901.

Y. Chen, Decomposing DAGs into Disjoint Chains, in: Proc. of 17th Int. Conf. on Database and Expert Systems Applications (DEXA 2007), Springer Verlag, Sept. 2007, pp. 243-253.

Y. Chen, A New Algorithm for Twig Pattern Matching, in: Proc. of Int. Conf. on Enterprise Information Systems (ICEIS’2007), IEEE, Funchal-madeira, Portugal, June 2007, pp. 44-51.

L. Zhou, Z. Yu, V. Anh, P. Nie, F. Liao, and Y. Chen, Log-correlation Distance and Fourier Transformation with Kullback-Leilber Divergence Distance for Construction of Vertebrate Phylogency Using Complete Mitochondrial Genomes, in: Proc. of Int. Conf. on Natural Computation (ICNC 2007), Haikou, China, IEEE, Aug. 2007.

Y. Chen, Tree Encoding and Transitive Closure Compression, in: Proc. of 11th Int. Conf. on Information Visualisation (IV07), Zurich, Switzerland, IEEE, July 2007, pp. 765-770.

Y. Chen, An Efficient Algorithm for Twig Joins, in: Proc. of Int. Conf. Applied Computing, Salamanca, Spain, Feb. 2007.

Z. Yu, L. Zhou, V. Anh, K. Chu, C. Li, and Y. Chen, Distance-based analysis to reveal vertebrate phylogeny without sequence alignment using complete mitochondrial genomes, in: Proc. of WMSCI’2007, Orlando, USA, July 2007.

Y. Chen, Stack Encoding Revisited, in: Proc. of Int. Conf. on Web Information Systems (WEBIST 2007), Barcelona, Spain, May 2007.

Y. Chen, Recursion Computation in Relational Databases Based on DAG Decomposition, in: Proc. of 4th Int. Conf. on Cybernetics and Information Technologies, Systems and Applications, Orlando, USA, July 2007.

Y. Chen, On the Tree Mapping in XML Databases, in: Proc. of Int. Conf. on Internet and Multimedia Systems and Applications (IMSA 2007), Honolulu, USA, Aug. 2007.

R. Mcfadyen and Y. Chen, Rule-based Query Tree Evaluation over Fragmented XML Documents, in: Proc. 2nd Int. Conf. on Web Information Systems and Technologies, Setubal, Portugal, April 11-13, 2006, pp. 199-205.

Y. Chen, Y. Shi, and Y. Chen, Tree inclusion algorithm, signatures and evaluation of path-oriented queries, SAC 2006, ACM, pp. 1020-1025.

Y. Chen and D. Cooke, On the transitive closure representation and adjustable compression, SAC 2006: ACM, pp. 450-455.

Y. Chen, On the Query Evaluation in Document DBs, DEXA 2006, LNCS 4080, Eds.: S. Bressan, J. Kung, and R. Wagner, Springer Verlag, Sept. 04-08, 2006, pp. 771-780.

Y. Chen, Tree Inclusion Revisited, accepted by Intl. Conf. on Advances in Computer Science and Technology (ACST 2006), Puerto Vallarta, Mexico, Jan. 25, 2006.

Y. Chen, On the Subset Matching, in: Proc. 7th Int. Conf. on Web-Age Information Management – Workshop: Information Processing over Evolving Networks, Hong Kong, China: IEEE, June 17-19, 2006.

Y. Chen, Evaluating Tree Pattern Queries based on tree embedding, in proc. Int. Conf. Software Engineering and Data Technologies (ICSOFT’2006), Vol II, Setubal, Portugal: Springer Verlag, Sept. 11-14, 2006, pp. 79-85.

Y. Chen, On the Twig Joins, in: Proc. WSEAS CSCC Multiconference, Vouliagmeni, Athens, Greece, July 13 -15, 2006.

Y. Chen, A New Algorithm for Subset matching Problem and its Probabilistic Analysis, accepted by Int. Conf. on Communication, Internet and Information Technology (CIIT 2006), St. Thmoas, USVI, USA, Nov. 29 - Dec. 01, 2006.

Y. Chen, On Signature trees and balanced signature trees, in Proc. Int. conf. on Data Engineering (ICDE2005), Tokyo, Japan: IEEE, April 5-8, 2005, pp. 742-753.

Chen, On the General Signature trees, in Proc. 16th Int. DEXA Conf. on Database and Expert Systems Application, Copenhagen, Denmark: Springer Verlag, Aug. 2005, pp. 207-219.

R. Mcfadyen, Y. Chen, and F. Chan, XML-based Evaluation of Synthesized Query Trees, in proc. Int. Conf. on Web Information Systems and Technologies (WEBIST2005), May 26-28, 2005, Miami, USA, pp. 24-31.

Y. Chen, and Y.B. Chen, On the Tree Inclusion and Query Evaluation in Document Databases, in proc. 7th Int. Conf. on Enterprise Information Systems (ICEIS2005), May 24-28, 2005, Miami, USA, 182-190.

Y. Chen, and Y.B. Chen, A New Algorithm for Tree Inclusion Problem, in proc. Int. Conf. Cybernetics and Information Technologies, Systems and applications (CITSA2005), July 14-17, 2005, Orlando, Florida, USA, pp. 261-266.

Y. Chen, A Space-Economic Representation of Transitive Closures Based on Graph Decomposition, in proc. Int. Conf. Cybernetics and Information Technologies, Systems and applications (CITSA2005), July 14-17, 2005, Orlando, Florida, USA, pp. 255-260.

Y. Chen, and Yong Shi, A New Way to Evaluate Path-Oriented Queries in Document Databases, in proc. 9th World Multiconference on Systems, Cybernetics and Informatics (WMSCI2005), July 10-13, Orlando, Florida, USA, pp. 261-266.

Y. Chen, and Y.B. Chen, Tree Matching Revisited, in proc. 9th World Multiconference on Systems, Cybernetics and Informatics (WMSCI2005), July 10-13, Orlando, Florida, USA, pp. 178-183.

R. McFadyen, Y. Chen, and F. Chan, Privilege Algebra for Access Control in Digital Libraries, accepted by Int. Conf. on Communication, Internet, and Information Technology (CIIT 2004), St. Thomas, US Virgin Islands, Nov. 22-24, 2004.

Y. Chen and Y.B. Chen, Signature File Hierarchies and Signature Graphs: A New Indexing Method for Object-Oriented Datbases, in Proc. ACM SAC 2004, pp. 724-728.

Y. Chen, A New Algorithm for Computing Transitive Closures, in Proc. ACM SAC 2004, pp. 1091-1092.

Y. Chen and Y.B. Chen, An Efficient Top-down Algorithm for Tree Inclusion, in Proc. of 18th Intl. Conf. Symposium on High Performance Computing System and Application, Winnipeg, Canada: IEEE, May 2004, pp. 183-197.

Y. Chen and Y.B. Chen, Constructing Signature Graphs for Signature Files, in Proc. 15th Information Resources Management Association Intl. Conference, New Oreans, USA, May 19-22, 2004, pp. 690-693.

Y. Chen, DAG Labeling and Topological Order: A New Way for Materialization of Recursion and Path Information, in Proc. 8th World Multi-Conference on Systemics, Cybernetics and Informatics (SCI’2004), Orlando, Florida, USA, July 18-21, 2004.

Y. Chen and Y.B. Chen, A New Tree Matching Algorithm, in Proc. Intl. Conf. on Cybernetics and Information Technologies, Systems, and Applications (CITSA 2004), Orlando, Florida, USA, July 21-25, 2004.

Y. Chen, Transitive Closure Revisited, accepted by 2nd IASTED Intl. Conf. on Communication, Internet, & Information Technology - CIIT 2003, Nov. 17-19, 2003, Acottsdale, AZ, USA.

R. McFadyen and Y. Chen, A DTD Complexity Metric, in Proc. 21st IASTED Intl. Conf. on Applied Informatics, Innsbruck, Austria, Feb. 2003, 1045-1052.

Y. Chen and R. McFadyen, On the Web and Document Databases, in Proc. 14th Information Resources Management Association Intl. Conf., Philadelphia, USA, May 18-21, 2003, pp. 210-215.

Y. Chen, Query Evaluation and Web Recognition in Document Databases, in Proc. IASTED Intl. Conf. on Internet and Multimedia Systems and Application (IMSA 2003), Aug. 13-15, 2003, in Honolulu, USA.

Y. Chen, A New Algorithm for Transitive Closures and Computation in Relational Databases, in Proc. IEEE intl. Conf. on Information Visualization, July 2003, London, England, pp. 206-215.

Y. Chen, Graph Decomposition and Recursive Closures, in Proc. CaiSE 2003 Forum at 15th Conf. on Advanced Information Systems Engineering, Klagenfurt/Velden, Austria: Springer Verlag, June, 2003, pp. 5-8.

Y. Chen, On the Document Algebra, in Proc. IASTED Intl. Conf. on Applied Modeling and Simulation (AMS’2002), Nov. 04-06, 2002, Cambridge, Mass., USA.

Y. Chen, D. Che and K. Aberer, On the Efficient Evaluation of Relaxed Queries in Biological Databases, accepted by 11th Int. Conf. on Information and Knowledge Management, Virginia, U.S.A.: ACM, Nov. 2002.

Y. Chen, Building Signature File Hierarchies into Object-Oriented Databases,accepeted by the IASTED Int. Conf. on Software Engineering and Application (SEA 2002), Cambridge, USA, Nov. 4-6, 2002.

Y. Chen, T. Liu and P. Sorenson, Personal Web Space, in Proc. 4th Intl. Workshop on Multimedia Network Systems and Applications (MNSA’2002) in conjunction with the 22nd Intl. Conf. on Distributed Computing Systems (ICDCS’2002), Vienna, Austria: IEEE, July 2-5, 2002, pp. 169-175.

Y. Chen, A Signature-based Indexing Method for Object-Oriented Databases, (invited paper) in 2nd Intl. Conf. on Advances in Infrastructure for e-Business, e-education, e-Science, and e-Medicine on the Internet, Italy: IEEE, July 2002.

Y. Chen and G. Huck, On Document Storage and Query Evaluation Optimization, in Proc. of 13th Information Resources Management Association Intl. Conference, Seattle, USA, May 19-22, 2002, 361-366.

Y. Chen, A New Way to Speed-up Recursion in Relational Databases, in Proc. of 13th Information Resources Management Association Intl. Conference, Seattle, USA, May 19-22, 2002, pp. 356-359.

Y. Chen. Ron. McFadyen, and F. Chan, Mapping DTDs to Object-Oriented Schemas, in Proc. of 2nd Int. Conf. on Web Informtion Systems Engineering (WISE2001), Kyoto, Japan: IEEE, Dec. 03 - 06, 2001, pp. 157-166.

Y. Chen and G. Huck, On the Evaluation of Path-Oriented Queries in Document Databases, Lecture Notes in Computer Science, Vol. 2113, Springer Verlag, pp. 953-962.

Y. Chen, G. Huck, Path signature: A Way to Speed up Evaluation of Path-oriented Queries in Document Datbases, accepted by 1st Int. Conf. on Web Informtion Systems Engineering (WISE2000), Hong Kong, China: IEEE, June 19 - 20, 2000.

Y. Chen, D. Che, and K. Aberer, Query Relaxation and Evaluation Optimization in Biological Databases, accepted by 4th Int. Joint Conference on Information Science, Atlantic city, NJ, USA: IEEE, February 27 - 29, 2000, (4 pages).

Y. Chen and K. Aberer, SGML DataBlade - A Document Database System, Int. Symposium on Database Application in Non-Traditional Environments, Kyoto, Japan: IEEE Nov. 28 - 30, 1999.

Y. Chen and K. Aberer, Combining Pat-Trees and Signature Files for Query Evaluation in Document Databases, accepted by 10th Int. DEXA Conf. on Database and Expert Systems Application, Florence, Italy: Springer Verlag, Sept. 1999.

D. Che, Y. Chen, K. Aberer, A Query System in a Biological Database, accepted by the 11th Int. Conf. on Scientific and Statistical Database Management, Cleveland, Ohio, USA: IEEE, July, 1999.

D. Che, Y. Chen, K. Aberer, An Advanced Web Query Systems of GPCRDB, accepted by the 11th Int. Conf. on Scientific and Statistical Database Management, Cleveland, Ohio, USA: IEEE, July, 1999.

D. Che, K. Aberer, Y. Chen, The Design of Query Interfaces to GPCRDB, accepted by Int. Workshop on User Interface to Data Intensive Systems (UIDIS), Edinburgh: IEEE, September, 1999.

Y. Chen and K. Aberer, Layered Index Structures in Document Databases, accepted by 7th Int. Conf. on Information and Knowledge Management, Washington, U.S.A.: ACM, Nov. 1998.

Y. Chen and W. Benn, Integrating Heterogeneous OO Schemas, accepted as poster paper by 15th Int. Conf. on Data Engineering, Sydney, Australia: IEEE, 1999.

Y. Chen and W. Benn, Defining Rules for Schema Transformation, accepted by 5th Int. Conf. on Object-Oriented Information Systems, Paris, France: Springer Verlag, Sept. 1998.

Y. Chen and W. Benn, Query Evaluation for Distributed Heterogeneous Relational Databases, in Proc. of 3th Int. Conf. on Cooperative Information Systems, New York, USA: IEEE, August. 1998, pp. 44-53.

Y. Chen, Applying Tarjan's Algorithm to Evaluation of Logic Programs, in Proc. of 9th Int. Conf. on Computing and Information, Winnipeg, Manitoba, Canada, June 1998, pp. 183-190; to appear also in a Special Issue of Journal of Computing and Information.

Y. Chen, Evaluating Linear Binary Programs by Traversing Automaton Hierarchy, in Proc. of 6th Int. Workshop on Deductive Databases and Logic Programming, Manchester, United Kingdom, June 1998.

Y. Chen and W. Benn, A New Assertion for Integrating OO Schemas, accepted by Int. CODATA Workshop, Paris, France, June 1998.

Y. Chen and W. Benn, Tree Balance and Node Allocation, Proc. of Int. Database and Application Symposium, Montreal, Canada: IEEE, August 1997, pp. 63-72.

Y. Chen and W. Benn, Building DD to Support Query Processing in Federated Databases, Proc. of 4th Int. Workshop on Knowledge Representation and Databases at the Int. Conf. on VLDB, Athens, Greece, Sept. 1997, pp. 5.1-5.10.

Y. Chen and W. Benn, On the Query Treatment in Federated Systems, Proc. of 8th Int. DEXA Conf. on Database and Expert Systems Application, Toulouse, France: Springer Verlag, Sept. 1997, pp. 583-592.

Y. Chen, Speeding up the Counting Method by computing Heritage Functions in Topological Order, Proc. of first East-European Symposium on Advances in Databases and Information Systems, St.-Ptersburg, Russia: ACM SIGMOD, Sept. 1997.

Y. Chen and W. Benn, Rule-based technology for schema transformatioin, in: Proc. of 2nd Int. Conf. on Cooperative Information Systems, Charleston, South Carolina, USA: IEEE, June 1997.

Y. Chen and W. Benn, Constructing Deduction-like Object-oriented Global Schemas, accepted by XII Brazilian Symposium on Database Systems, Fortaleza, CE-Brazil, Oct. 1997.

Y. Chen, Research on Non-Linear Recursive Queries, accepted by The China 9th Symposium on Computer Application in Modern Science Technology, Beijing, October, 1997.

Y. Chen and W. Benn, On the Query Optimization in Multidatabases, in: Proc. of the first Int. Symposium on Cooperative Database Systems for Advanced Applications (CODAS'96), Kyoto, Japan: World Scientific Press, Dec. 1996, pp. 137-144.

Y. Chen and W. Benn, A Rule-based Strategy for Translating Relational Schemas into OO-Schemas, in: Proc. of first Int. Symposium on Cooperative Database Systems for Advanced Applications (CODAS'96), Kyoto, Japan: World Scientific Press, Dec. 1996, pp. 85-88.

Y. Chen and W. Benn, On the Query Transalation in Federated Relational Databases, in: Proc. of 7th Int. DEXA Conf. and Workshop on Database and Expert Systems Application, Zurich, Switzerland: IEEE, Sept. 1996, pp. 491-498.

W. Benn, Y. Chen and I. Gringer, A New Strategy for Integrating Heterogeneous OO Schemas, in: Proc. of the first Workshop "Foederierte Datenbanken", Magdeburg, Germany, April 1996, pp. 19-27.

Y. Chen and W. Benn, Integrity Constraint Translation Problem in Federated Relational Databases, in: Proc. of the second Workshop "Foederierte Datenbanken", Dortmund, Germany, Dec. 1996, pp. 9-12.

Y. Chen, Processing of Recursive Rules in Knowledge-based Systems - Algorithms for Handling Recursive Rules and Negative Information and Performance Measurements, Ph.D. thesis, Computer Science Department, University of Kaiserslautern, Germany, Feb. 1995.

Y. Chen and T. Härder, An Optimal Graph Traversal Algorithm for Evaluating Linear Binary- chain Programs, in: Proc. CIKM'94 - the 3th Int. Conf. on Information and Knowledge Management, Gaithersburg, Maryland, USA: ACM, Nov. 1994, pp. 34-41.

Y. Chen and T. Härder, On the Optimal Top-down Evaluation of Recursive Queries, in: Proc. of 5th Int. DEXA Conf. on Database and Expert Systems Applications, Athens, Greece: Springer Verlag, Sept. 1994, pp. 47-56.

Y. Chen, A Bottom-up Query Evaluation Method for Stratified Databases, in: Proc. of 9th Int. Conf. on Data Engineering, Vienna, Austria: IEEE, April 1993, pp. 568-575.

Y. Chen, Ordering Conjuctive Queries, in: Proc. of the Int. Conference of Young Computer Scientists, Beijing, China, 1993.

Y. Chen and T. Härder, Improving RQA/FQI Recursive Query Algorithm, in: Proc. ISMM - First Int. Conf. on Information and Knowledge Management, Baltimore, Maryland, USA: ACM, Nov. 1992, pp. 413-422.

Y. Chen and T. Härder, Eliminating Redundant Computation from RQA/FQI, in: Proc. ICIC'92 - Second Int. Conf. on Data and Knowledge Engineering: Theory and Application, Hongkong: IEEE, Dec. 1992, pp. 273-279.

Y. Chen, Improving Han and Lee's Path Consistency Algorithm, in: Proc. of 3th International Conf. on Tools of Artificial Intelligence, San Jose, CA, USA: IEEE, Nov. 1991, pp. 346-350.

Y. Chen, A Recursive Inference Reasoning Algorithm, Journal of Computer Research and Development, China, 1990 (in Chinese).

. Y. Chen, A Medical Expert System, in: Proc. of the first national conference on Computer Technology Used in Medicine, Xiamen, China, 1987 (in Chinese).

Y. Chen, Application of Fuzzy Logic to the Computer-based Medical Diagnosis System, Journal of the Technical Institute of Changsha, China, Vol. 58, No. 2, pp. 107-111, 1987 (in Chinese).

Y. Chen, A Reasoning Method of Computer-based Medical Diognosis System, Journal of the Technical Institute of Changsha, China, Vol. 57, No. 1, pp. 76-80, 1986 (in Chinese).

Technical Reports

R. Busse, Y. Chen, H. Eisner and J. Waesch, Benchmark: XML Support for Oracle 8i vs. Tamino, Technical Report, IPSI Institute, German National Research Center for Information Technology, 1999.

Y. Chen and W. Benn, A Systematic Method for Evaluating Queries in Federated Database Systems, Technical Report/CS-97-03, Department of Computer Science, TU Chemnitz-Zwickau, Germany, 1997.

W. Benn, Y. Chen and I. Gringer, A Rule-based Strategy for Schema Integration in a Heterogeneous Information Environment, technical report/CSR-96-01, Computer Science Department, Technical University of Chemnitz-Zwickau, Germany, 1996.

Y. Chen and T. Härder, Graph Traversal and Linear Binary-chain Programs, ZRI-Report 4/94, University of Kaiserslautern, Germany, 1994.

Y. Chen and T. Härder, An Optimal Top-down Evaluation Algorithm for Recursive Queries, ZRI-Report 2/94, University of Kaiserslautern, Germany, 1994.

Yangjun Chen, Seite geändert am 21.07.2000