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ftp://ithaca.dbnet.ece.ntua.gr (65)

	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/publish/1993/Koub93.ps.Z, 19950411 Representation and Querying in Temporal Databases: the Power of Temporal Constraints Manolis Koubarakis Dept. of Computer Science University of Toronto Toronto, Ontario M5S 1A4 Canada
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/publish/1992/PS92.ps.Z, 19950411 Appears: In Frank A.U., Campari I., Formentini U. (eds.) International Conference GIS- From Space to Territory: Theories and Methods of Spatio-Temporal Reasoning in Geographic Space. Pisa, Italy, Springer Verlag, 1992. Spatial Reasoning Using Symbolic Arrays1 Dimitris Papadias and Timos Sellis Computer
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/publish/1994/PTS94.ps.Z, 19950411 In the Proceedings of the 5th International Conference on Databases and Expert Systems Applications, DEXA, 1994, Springer Verlag, LNCS The Retrieval of Direction Relations using R-trees Dimitris Papadias1,2, Yannis Theodoridis1, Timos Sellis1 1Dept. of Electrical and Computer Engineering, National
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/publish/1994/PK94.ps.Z, 19950411 Appears: in the Proceedings of the 6th International Symposium on Spatial Data Handling, Endinburgh, U.K. Taylor Francis, 1994. Acquiring, Representing and Processing Spatial Relations Dimitris Papadias Marinos Kavouras Dept. of Electrical and Computer Engineering National Technical University of Athens
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/reports/1993/tr9306.ps.Z, 19950411 Pullar, D., Egenhofer, M. (1988) Toward Formal Definitions of Topological Relations among Spatial Objects. In the Proceedings of the 3rd International Symposium on Spatial Data Handling. Randell, D. A., Cui, Z., Cohn., A., (1992) A Spatial Logic Based on Regions and Connection. In the Proceedings of
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/publish/1993/PS93.ps.Z, 19950411 Appears: In Frank A.U., Campari I.,(eds.) European Conference on Spatial Information Theory, COSIT 93, Elba, Italy. Springer-Verlag 1993. The Semantics Of Relations In 2D Space Using Representative Points: Spatial Indexes Dimitris Papadias1 and Timos Sellis1,2 Computer Science Division Department of
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/reports/1994/tr9401.ps.Z, 19950411 Foundations of Temporal Constraint Databases Manolis Koubarakis Foundations of Temporal Constraint Databases Manolis Koubarakis Doctoral Dissertation February 1994 Computer Science Division Dept. of Electrical and Computer Engineering National Technical University of Athens Athens, Greece
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/reports/1993/tr9304.ps.Z, 19950411 Appears in: Very Large Data Bases Journal, Special Issue on Spatial Databases, Vol 4, pp 100-138, 1994. On the Qualitative Representation of Spatial Knowledge in 2D Space Dimitris Papadias and Timos Sellis
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/publish/1995/PS95.ps.Z, 19950411 To appear in the Journal of Visual Languages and Computing, Special Issue on Visual Query Systems, March 1995. A Pictorial Query-By-Example Language Dimitris Papadias* and Timos Sellis Computer Science Division, Department of Electrical and Computer Engineering, National Technical University of Athens,
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/reports/1994/tr9405.ps.Z, 19950411 KDBSLAB-TR-94-05 August 1994 Relation-Based Representations for Spatial Knowledge Ph.D. Thesis Dimitris Papadias Supervisor: Timos Sellis Knowledge and Data Base Systems Laboratory Computer Science Division Department of Electrical and Computer Engineering National Technical University of Athens
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/publish/1994/PS94a.ps.Z, 19950411 Appears: in the Proceedings of the 6th International Symposium on Spatial Data Handling, Endinburgh, U.K. Taylor Francis, 1994. A Pictorial Language for the Retrieval of Spatial Relations from Image Databases Dimitris Papadias and Timos Sellis Computer Science Division Department of Electrical and
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/publish/1994/PA94.ps.Z, 19950411 order to include the new fact. The goal of error correction is, given a spatial knowledge representation which is not quite accurate and a new fact which is more precise, to improve the representation. Both these problems can be treated by operators, similar to the composition operator, that take two
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/reports/1994/tr9407.ps.Z, 19950411 To appear in the Journal of Visual Languages and Computing, Special Issue on Visual Query Systems, March 1995. A Pictorial Query-By-Example Language Dimitris Papadias* and Timos Sellis Computer Science Division, Department of Electrical and Computer Engineering, National Technical University of Athens,
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/publish/1994/PS94b.ps.Z, 19950411 Appears in: Very Large Data Bases Journal, Special Issue on Spatial Databases, Vol 4, pp 100-138, 1994. On the Qualitative Representation of Spatial Knowledge in 2D Space Dimitris Papadias and Timos Sellis
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/reports/1993/tr9302.ps.Z, 19950411 Technical Report KDBSLAB-TR-93-02 Spatial Relation-Based Representation Systems1 Dimitris Papadias Computer Science Division Department of Electrical and Computer Engineering National Technical University of Athens 157 73 Zographou, Athens, GREECE dp@theseas.ntua.gr
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/reports/1992/tr9202.ps.Z, 19950411 Appears: In Frank A.U., Campari I., Formentini U. (eds.) International Conference GIS- From Space to Territory: Theories and Methods of Spatio-Temporal Reasoning in Geographic Space. Pisa, Italy, Springer Verlag, 1992. Spatial Reasoning Using Symbolic Arrays1 Dimitris Papadias and Timos Sellis Computer
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/reports/1994/tr9406.ps.Z, 19950411 Technical Report KDBSLAB-TR-94-06 Topological Relations in the World of Minimum Bounding Rectangles: a Study with R-trees Dimitris Papadias Department of Computer Science and Engineering University of California, San Diego La Jolla, California, USA 92093-0114 dimitris@cs.ucsd.edu Yannis Theodoridis*
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/reports/1994/tr9403.ps.Z, 19950411 Technical Report KDBSLAB-TR-94-03 On the Retrieval of Direction Relations using R-trees** Dimitris Papadias1,2, Yannis Theodoridis1, Timos Sellis1 1Department of Electrical and Computer Engineering, National Technical University of Athens, Zographou 15773, Athens, Greece. e-mail:
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/reports/1994/tr9402.ps.Z, 19950411 Database Models for Infinite and Indefinite Temporal Information Manolis Koubarakis Knowledge and Data Base Systems Laboratory Computer Science Division Dept. of Electrical and Computer Engineering National Technical University of Athens Zographou 157 73, Athens, Greece Appears in: Informations Systems,
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/reports/1994/tr9404.ps.Z, 19950411 Technical Report KDBSLAB-TR-94-04 Spatial Relations, Minimum Bounding Rectangles, and Spatial Data Structures Dimitris Papadias Department of Computer Science and Engineering University of California, San Diego La Jolla, California, USA 92093-0114 dimitris@cs.ucsd.edu Yannis Theodoridis Department of
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/reports/1993/tr9303.ps.Z, 19950411 Appears: In Frank A.U., Campari I.,(eds.) European Conference on Spatial Information Theory, COSIT 93, Elba, Italy. Springer-Verlag 1993. The Semantics Of Relations In 2D Space Using Representative Points: Spatial Indexes Dimitris Papadias1 and Timos Sellis1,2 Computer Science Division Department of
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/reports/1992/tr9201.ps.Z, 19950411 Dense Time and Temporal Constraints With <> Manolis Koubarakis Dept. of Computer Science University of Toronto Toronto, Ontario M5S 1A4 Canada
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/publish/1995/PTSE95.ps.Z, 19950411 Topological Relations in the World of Minimum Bounding Rectangles: A Study with R-trees Dimitris Papadias Department of Computer Science and Engineering University of California, San Diego CA 92093-0114, USA dimitris@cs.ucsd.edu Yannis Theodoridis Department of Electrical and Computer Engineering
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/reports/1993/tr9305.ps.Z, 19950411 Representation and Querying in Temporal Databases: the Power of Temporal Constraints (Long Version) Manolis Koubarakis Computer Science Division Dept. of Electrical and Computer Engineering National Technical University of Athens Zographou 157 73 Athens GREECE koubarak@theseas.ntua.gr May 5, 1993
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/publish/1994/TS94.ps.Z, 19950411 in the ChooseSubtree algorithm. The F factor is computed for each group and the selected group is the one with the minimum F value. We have implemented the above mechanisms in order to experimentally evaluate the structures. Our implementation is affected by several parameters that could be tuned.
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/reports/1993/tr9308.ps.Z, 19950411 Technical Report KDBSLAB-TR-93-08 Optimization Issues in R-tree Construction* Yannis Theodoridis, Timos Sellis Knowledge and Database Systems Laboratory Computer Science Division Department of Elec. and Comp. Engineering National Technical University of Athens (NTUA) Zographou 157 73, Athens, Greece
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/reports/1995/tr9501.ps.Z, 19950412 Technical Report KDBSLAB-TR-95-05 1 The Abstraction Technique for Spatial Access Methods Emmanuel Stefanakis1 Y.C. Lee2 Timos Sellis1 1Department of Electrical and Computer Engineering National Technical University of Athens Zographou, Athens, GREECE 15773 {stefanak, timos}@theseas.ntua.gr 2Department
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/reports/1995/tr9506.ps.Z, 19950412 Technical Report KDBSLAB-TR-95-06 On the Determination of the Optimum Path in Space Emmanuel Stefanakis Marinos Kavouras Department of Electrical and Computer Engineering National Technical University of Athens Zographou, Athens, GREECE 15773 e-mail: stefanak@theseas.ntua.gr Tel #: 30-1-7484922, Fax #:
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/reports/1995/tr9504.ps.Z, 19950412 Range Queries Involving Spatial Relations: A Performance Analysis Yannis Theodoridis+ Department of Electrical and Computer Engineering National Technical University of Athens GREECE 15773 e-mail: theodor@theseas.ntua.gr tel: +30-1-7757401 fax: +30-1-7784578 Dimitris Papadias* Department of Computer
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/other/full.ps.Z, 19950503 ACCESS METHODS FOR SPATIAL OBJECTS: ALGORITHMS AND ANALYSIS Christos Faloutsos 2, Timos Sellis 1,2, Nick Roussopoulos 1,2, Dimitri Metaxas Department of Computer Science University of Maryland College Park, MD 20742
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/publish/1995/TP95.ps.Z, 19950705 Appears: In the Proceedings of the 2nd International Conference on Spatial Information Theory (COSIT'95), Semmering - Vienna, September 1995. Springer-Verlag LNCS. Range Queries Involving Spatial Relations: A Performance Analysis Yannis Theodoridis+ Dept. of Electrical and Computer Engineering National
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/reports/1995/tr9503.ps.Z, 19950705 1 On the Performance Analysis of Multi-dimensional R-tree-based Data Structures Yannis Theodoridis and Timos Sellis Computer Science Division Department of Electrical and Computer Engineering National Technical University of Athens Zographou 157 73, Athens, Greece e-mail: {theodor,timos}@theseas.ntua.gr
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/reports/1995/tr9508.ps.Z, 19950727 1 EVENT AND ACTION REPRESENTATION AND COMPOSITION FOR MULTIMEDIA APPLICATION SCENARIO MODELLING. M. Vazirgiannis, T. Sellis Department of Electrical Engineering, Division of Computer Science, National Technical University of Athens Zographou 157 73 Athens, Greece. e-mail: {mvazirg,
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/reports/1995/tr9507.ps.Z, 19951030 Direction Relationsand Two-Dimensional Range Queries: Optimization Techniques Yannis Theodoridis* Dimitris Papadias+ Emmanuel Stefanakis* Timos Sellis* *Computer Science Division Department of Electrical and Computer Engineering National Technical University of Athens Zographou, Athens, GREECE 15773
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/reports/1995/tr9509.ps.Z, 19951030 PAPER TITLE: SPATIO - TEMPORAL COMPOSITION IN MULTIMEDIA APPLICATIONS AUTHORS: Dr. Michael Vazirgiannis 1) Mr. Yannis Theodoridis 1) Prof. Timos Sellis 1) 1) Department of Electrical Engineering, Division of Computer Science, National Technical University of Athens Zographou 157 73 Athens, Greece.
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/publish/1996/VTS96.ps.Z, 19960109 Spatio - Temporal Composition in Multimedia Applications Michael Vazirgiannis, Yannis Theodoridis, Timos Sellis Department of Electrical Engineering, Division of Computer Science, National Technical University of Athens Zographou 157 73, Athens, Greece. e-mail: {mvazirg, theodor, timos}@cs.ntua.gr
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/publish/1996/VS96.ps.Z, 19960110 EVENT AND ACTION REPRESENTATION AND COMPOSITION FOR MULTIMEDIA APPLICATION SCENARIO MODELLING. M. Vazirgiannis, T. Sellis Department of Electrical Engineering, Division of Computer Science, National Technical University of Athens
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/reports/1995/tr9510.ps.Z, 19960117 A Model for the Prediction of R-tree Performance* (Extended Abstract) Yannis Theodoridis and Timos Sellis Computer Science Division Department of Electrical and Computer Engineering National Technical University of Athens 15773 Zographou, Athens, GREECE e-mail: {theodor,timos}@cs.ntua.gr tel:
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/reports/1995/tr9502.ps.Z, 19960126 Supporting Direction Relations in Spatial Database Systems Yannis Theodoridis* Dimitris Papadias+ Emmanuel Stefanakis* *Department of Electrical and Computer Engineering National Technical University of Athens Zographou, Athens, GREECE 15773 {theodor, stefanak}@theseas.ntua.gr +Department of Computer
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/publish/1995/VH95.ps.Z, 19960130 Integrated Multimedia Object and Application Modelling Based on Events and Scenarios Michael Vazirgiannis, Michael Hatzopoulos, Department of Informatics, University Campus, University of Athens, 15771, Ilisia, Athens, Greece E-mail: {michalis, mike}@di.uoa.gr
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/publish/1995/VKH95.ps.Z, 19960130 KNOWEL: A Hypermedia Kowledge Editor M. Vazirgiannis, A. Kalousis, M. Hatzopoulos Department of Informatics, University Campus, University of Athens, 15771, Ilisia, Athens, Greece e-mail: {michalis, grad0058, mike}@di.uoa.gr
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/publish/1996/TVS96.ps.Z, 19960201 Submitted to the 3rd IEEE International Conference on Multimedia Computing and Systems (ICMCS 96). Spatio-Temporal Indexing for Large Multimedia Applications Yannis Theodoridis** , Michael Vazirgiannis, Timos Sellis Computer Science Division Department of Electrical and Computer Engineering National
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/publish/1996/TS96.ps.Z, 19960227 A Model for the Prediction of R-tree Performance Yannis Theodoridis Computer Science Division Department of Electrical and Computer Engineering National Technical University of Athens Zographou 15773, GREECE e-mail: theodor@cs.ntua.gr Timos Sellis Computer Science Division Department of Electrical and
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/publish/1996/TVS.ps.Z, 19960704 In the proceedings of the IEEE-International Conference on Multimedia Systems 96, Hiroshima, Japan Spatio-Temporal Indexing for Large Multimedia Applications Yannis Theodoridis Michael Vazirgiannis Timos Sellis Computer Science Division Dept. of Elec. and Comp. Engineering National Tech. University of
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/other/survey.ps, 19961019 Multidimensional Access Methods Volker Gaede and Oliver G unther Institut f ur Wirtschaftsinformatik Humboldt-Universit at zu Berlin Spandauer Str. 1 10178 Berlin, Germany fgaede,guentherg@wiwi.hu-berlin.de
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/publish/1993/VM93.ps.Z, 19961025 3XEOLVKHG LQ &RPSXWHU -RXUQDOffl YRO ssff<=fi $1 2%-(&7 25,(17(' 02'(/ )25 ,17(5$&7,9( 08/7,0(',$ 35(6(17$7,216 0LFKDHO 9D]LUJLDQQLV &RQVWDQWLQ 0RXUODV 'HSDUWPHQW RI ,QIRUPDWLFVffl 8QLYHUVLW RI $WKHQVffl 7<3$ %XLOGLQJVffl 3DQHSLVWLPLRSROLVffl <= aeae<= $WKHQVffl *5((&( $%675$&7 ,Q WKLV SDSHU D
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/publish/1996/V96.ps.Z, 19961025 EDITED BOOK TITLE EDITED BY KLUWER ACADEMIC PUBLISHERS Boston/London/Dordrecht CONTENTS v CONTRIBUTORS 1 MULTIMEDIA DATA BASE OBJECT AND APPLICATION MODELLING ISSUES AND AN OBJECT ORIENTED MODEL Michael Vazirgiannis Computer Science Division, Department of Electrical and Computer Engineering, National
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/publish/1996/VRH96.ps.Z, 19961025 $8720$7,& +<3(50(',$ '2&80(17 (1(5$7,21 %$6(' 21 (/(&7521,& 0$5. 83 7(;7AE 7+( ,/',& &$6(<= 0 9D]LUJLDQQLV 'HSDUWPHQW RI (O &RPS (QJLQHHULQJ ffl 'LYLVLRQ RI &RPS 6FLHQFHffl 1DWLRQDO 7HFKQLFDO 8QLYHUVLW RI $WKHQVffl5((&( $ 5HNNDV 'HSDUWPHQW RI ,QIRUPDWLFVffl 8QLYHUVLW RI $WKHQVffl *5((&( 0
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/publish/1993/VH93.ps.Z, 19961025 (0 or e2,b4.button_up,crete_audio.play(),(_,e2), on ^C crete_audio.stop()), (3,b4.button_up, crete_image.display(dissolve),,,), (b1.button_up,,PI1.execute(),,,), (b2.button_up,,HI1.execute(),,,), (b3.button_up,,TI1.execute(),,,), (Close.button_up,,crete.stop(),,,) Scenario script_PI1 (PI1,
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/publish/1996/SVS96-1.ps.Z, 19961025 SPATIAL DECISION MAKING BASED ON FUZZY SET METHODOLOGIES Emmanuel Stefanakis, Michael Vazirgiannis and Timos Sellis Department of Electrical and Computer Engineering National Technical University of Athens Zographou, Athens 15773, Greece fstefanak,mvazirg,timosg@cs.ntua.gr XVIII ISPRS Congress -
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/publish/1996/SVS96.ps.Z, 19961025 Incorporating Fuzzy Logic Methodologies into GIS Operations Emmanuel Stefanakis Michael Vazirgiannis Timos Sellis Department of Electrical and Computer Engineering National Technical University of Athens Zographou, Athens, Greece 15773 e-mail: fstefanak,mvazirg,timosg@cs.ntua.gr
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/reports/1996/VB96.ps.Z, 19961223 (9(176 ,1 ,17(5$&7,9( 08/7,0(',$ $33/,&$7,216AE 02'(/,1* $1' ,03/(0(17$7,21 '(6,*1 0LFKDHO 9D]LUJLDQQLV 6XVDQQH %ROO Computer Science Division Dept. of Elec. And Comp. Engineering National Tech. University of Athens Zographou, Athens, 157 73, GREECE e-mail: mvazirg@cs.ntua.gr1 Database and Information
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/publish/1993/VM.ps.Z, 19961223 3XEOLVKHG LQ &RPSXWHU -RXUQDOffl YRO ssff<=fi $1 2%-(&7 25,(17(' 02'(/ )25 ,17(5$&7,9( 08/7,0(',$ 35(6(17$7,216 0LFKDHO 9D]LUJLDQQLV &RQVWDQWLQ 0RXUODV 'HSDUWPHQW RI ,QIRUPDWLFVffl 8QLYHUVLW RI $WKHQVffl 7<3$ %XLOGLQJVffl 3DQHSLVWLPLRSROLVffl <= aeae<= $WKHQVffl *5((&( $%675$&7 ,Q WKLV SDSHU D
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/publish/1997/PT97.ps.Z, 19970424 Spatial Relations, Minimum Bounding Rectangles, and Spatial Data Structures 'LPLWULV 3DSDGLDV 1DWLRQDO &HQWHU IRU *HRJUDSKLF ,QIRUPDWLRQ DQG $QDOVLV 'HSDUWPHQW RI 6SDWLDO ,QIRUPDWLRQ 6FLHQFH DQG (QJLQHHULQJ 8QLYHUVLW RI 0DLQH 2URQRffl 0( sso ae<=<=ffl 86$ GLPLWULV#VSDWLDO PDLQH HGX
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/publish/1997/VTS97.ps.Z, 19970424 S3$7,2-T(0325$/ C20326,7,21 $1' I1'(;,1* )25 L$5*( M8/7,0(',$ A33/,&$7,216 0LFKDHO 9D]LUJLDQQLV
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/publish/1996/TPS96.ps.Z, 19970424 Supporting Direction Relations in Spatial Database Systems Yannis Theodoridis* Dimitris Papadias+ Emmanuel Stefanakis* *Department of Electrical and Computer Engineering National Technical University of Athens Zographou, Athens, GREECE 15773 {theodor, stefanak}@cs.ntua.gr + National Center for
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/publish/1994/VM94.ps.Z, 19970506 3XEOLVKHG LQ &RPSXWHU -RXUQDOffl YRO ssff<=fi $1 2%-(&7 25,(17(' 02'(/ )25 ,17(5$&7,9( 08/7,0(',$ 35(6(17$7,216 0LFKDHO 9D]LUJLDQQLV &RQVWDQWLQ 0RXUODV 'HSDUWPHQW RI ,QIRUPDWLFVffl 8QLYHUVLW RI $WKHQVffl 7<3$ %XLOGLQJVffl 3DQHSLVWLPLRSROLVffl <= aeae<= $WKHQVffl *5((&( $%675$&7 ,Q WKLV SDSHU D
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/publish/1997/STSL97.ps.Z, 19970507 INT. J. GEOGRAPHICAL INFORMATION SYSTEMS 5HVHDUFK $UWLFOH 3RLQW 5HSUHVHQWDWLRQ RI 6SDWLDO 2EMHFWV DQG 4XHU :LQGRZ (
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/publish/1997/PTS97.ps.Z, 19970507 1 Multi-Dimensional Range Query Processing with Spatial Relations Dimitris Papadias1 Yannis Theodoridis2 Emmanuel Stefanakis2 1 Department of Computer Science Hong Kong University of Science and Technology Kowloon, Hong Kong dimitris@cs.ust.hk 2 Department of Electrical and Computer Engineering National
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/other/vldb87.ps.gz, 19970523 THE R+ R+-TREE: A DYNAMIC INDEX FOR MULTI-DIMENSIONAL OBJECTS Timos Sellis1,2, Nick Roussopoulos1,2 and Christos Faloutsos2 Department of Computer Science University of Maryland College Park, MD 20742
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/reports/1997/tr9701.ps.Z, 19970605 An Efficient Cost Model for Spatial Joins Using R-trees Yannis Theodoridis Emmanuel Stefanakis Timos Sellis Computer Science Division Department of Electrical and Computer Engineering National Technical University of Athens Zographou 15773, Athens, Greece {theodor, stefanak, timos}@cs.ntua.gr
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/reports/1997/tr9702.ps.Z, 19970902 Cost Models for Join Queries in Spatial Databases Yannis Theodoridis Emmanuel Stefanakis Timos Sellis Computer Science Division Department of Electrical and Computer Engineering National Technical University of Athens Zographou 15773, Athens, Greece {theodor, stefanak, timos}@cs.ntua.gr
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/other/vldb97.ps.gz, 19970909 VLDB 97 1 Multidimensional Access Methods Trees Have Grown Everywhere Timos Sellis Nick Roussopoulos Christos Faloutsos VLDB 97 2 Outline Introduction The way we were 10 years ago What has been done since then What was the influence What is coming up Summary VLDB 97 3 Introduction Multidimensional
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/publish/1998/TSS98.ps.Z, 19971126 Cost Models for Join Queries in Spatial Databases Yannis Theodoridis Emmanuel Stefanakis Timos Sellis Computer Science Division Department of Electrical and Computer Engineering National Technical University of Athens Zographou 15773, Athens, HELLAS (GREECE) E-mail: {theodor, stefanak, timos}@cs.ntua.gr
	ftp://ithaca.dbnet.ece.ntua.gr/pub/papers/publish/1998/VTSH98.ps.gz, 19980112 ,17(5$&7,9( 08/7,0(',$ 6&(1$5,2AE 02'(/,1* 5(1'(5,1* 9D]LUJLDQQLV , 6WDPDWL 0 7UDIDOLV 0 +DW]RSRXORV Dept of El. & Comp. Eng., National Technical University of Athens, 15773, Athens, Greece michalis@dbnet.ntua.gr Dept. of Informatics, University of Athens, TYPA buildings, 15771, Athens, Greece