vldb_1997_elementary.txt

利用lwp：：get写的

<proceedings><paper><title>23. VLDB 1997:
Conference Organisers</title><year></year><conference>International Conference on Very Large Data Bases</conference><citation></citation><abstract></abstract></paper><paper><title>23. VLDB 1997:
Program Committee Members</title><year></year><conference>International Conference on Very Large Data Bases</conference><citation></citation><abstract></abstract></paper><paper><title>23.VLDB 1997: Foreword</title><year></year><conference>International Conference on Very Large Data Bases</conference><citation></citation><abstract></abstract></paper><paper><title>23. VLDB 1997:
Preface</title><year></year><conference>International Conference on Very Large Data Bases</conference><citation></citation><abstract></abstract></paper><paper><title>Innovation in Database Management: Computer Science vs. Engineering.</title><author><AuthorName>Kenneth R. Jacobs</AuthorName><institute><InstituteName></InstituteName><country></country></institute></author><year>1997</year><conference>International Conference on Very Large Data Bases</conference><citation></citation><abstract>Vendors of commercial database management systems face many challenges in
incorporating into their products innovative technologies developed in
academia.
Pragmatic considerations and operational requirements can limit the
viability of applying promising research.
Technology leadership in commercial products is often the result of taking
unconventional approaches rather than following "conventional wisdom",
as illustrated with several examples of technologies in Oracle8 and its
predecessors.
The challenge shared by researchers and practitioners alike:
"making what we do matter."

Short Biography
Ken Jacobs is vice president of Product Strategy for Oracle's Server
Technology Division.
He is responsible for a number of technology planning activities for
the Oracle database product family,
including parallel processing, object technology and high performance systems.
He has most recently acted as the senior manager responsible for coordinating
all company activities surrounding the release of Oracle's next generation
database product, Oracle8.
Mr. Jacobs is a frequent speaker at industry symposiums and conferences.
Previous to his current role, Mr. Jacobs was vice president of Product
Management for the Server Technologies Division, where he managed a team
responsible for product management and marketing for the Oracle7 database
server and related technologies.
Mr. Jacobs joined Oracle in July 1981 and has held a varity of positions
with technical, managerial and marketing responsibilities in field and
corporate roles.
Mr. Jacobs has contributed to several industry-wide activities including
the development of the SQL database language.
For many years, he served as Oracle's representative on the American
National Standards Instutute (ANSI) SQL Committee, the technical
committee on databases (X2H2). He also initiated and led effords to
enhance the security features of the Oracle database server,
working with the National Computer Security Center and other key
government agencies. Mr. Jacobs has also represented Oracle at the
Transaction Processing Performance Council.
Prior to joining Oracle, Mr. Jacobs was with Inslaw Inc., where he managed a
team providing computing support to social science survey data research.
Prior to this, he worked as a programmer and systems analyst for several
companies including: ADP Network Services, The Urban Institute, Oberlin
College and The Brookings Institution.
Mr. Jacobs received a bachelor's degree from Oberlin College and
performed graduate work in computer sciebce at
George Washington University.</abstract></paper><paper><title>The Microsoft Repository.</title><author><AuthorName>Philip A. Bernstein</AuthorName><institute><InstituteName></InstituteName><country></country></institute></author><author><AuthorName>Brian Harry</AuthorName><institute><InstituteName></InstituteName><country></country></institute></author><author><AuthorName>Paul Sanders</AuthorName><institute><InstituteName></InstituteName><country></country></institute></author><author><AuthorName>David Shutt</AuthorName><institute><InstituteName></InstituteName><country></country></institute></author><author><AuthorName>Jason Zander</AuthorName><institute><InstituteName></InstituteName><country></country></institute></author><year>1997</year><conference>International Conference on Very Large Data Bases</conference><citation><name>A Critique of ANSI SQL Isolation Levels.</name><name>Repositories and Object Oriented Databases.</name><name>An Overview of Repository Technology.</name><name>The Object Database Standard: ODMG-93 (Release 1.2).</name><name>The Software Information Base: A Server for Reuse.</name><name>Inside ODBC.</name><name>Inside COM.</name><name>PCTE - The Standard for Open Repositories.</name><name>Readings in Object-Oriented Database Systems.</name></citation><abstract>The Microsoft Repository is an object-oriented repository that 
ships as a component of Visual Basic (Version 5.0). It includes 
a set of ActiveX interfaces that a developer can use to define 
information models, and a repository engine that is the under-
lying storage mechanism for these information models. The 
repository engine sits on top of a SQL database system.
The repository is designed to meet the persistent storage needs 
of software tools. Its two main technical goals are:

compatibility with Microsoft's existing ActiveX object 
architecture consisting of the Component Object Model (COM) 
and Automation and 
extensibility by customers and independent software vendors 
who need to tailor the repository by adding functionality to 
objects stored by the repository engine and extending infor-
mation models provided by Microsoft and others. 

This paper explains how the Repository attains these goals by 
providing an object-oriented database (OODB) architecture based 
on Microsoft's binary object model (COM) and type system of 
Visual Basic (Automation).</abstract></paper><paper><title>Multidimensional Access Methods: Trees Have Grown Everywhere.</title><author><AuthorName>Timos K. Sellis</AuthorName><institute><InstituteName></InstituteName><country></country></institute></author><author><AuthorName>Nick Roussopoulos</AuthorName><institute><InstituteName></InstituteName><country></country></institute></author><author><AuthorName>Christos Faloutsos</AuthorName><institute><InstituteName></InstituteName><country></country></institute></author><year>1997</year><conference>International Conference on Very Large Data Bases</conference><citation></citation><abstract>This paper is a survey of work and issues on multi-dimensional search trees.
We provide a classification of such methods, we describe the related algorithms,
we present performance analysis efforts,
and finally outline future research directions.
Multi-dimensional search trees and Spatial Access Methods, in general,
are designed to handle spatial objects, like points, line segments,
polygons, polyhedra etc.
The goal is to support spatial queries, such as
nearest neighbors queries (find all cities within 10 miles from Washington D.C.),
or 
range queries (find all the lakes on earth, within 30 and 40 degrees of latitude),
and so on.
The applications are numerous, including
traditional database multi-attribute indexing,
Geographic Information Systems and spatial database systems, and
indexing multimedia databases by content.

From the spatial databases viewpoint we can distinguish between two major classes of access 
methods:

Point Access Methods (known as PAMs) which are used to organize
multidimensional point objects (e.g. cities, where each city is
represented by three coordinates longitude, 
latitude and altitude, or traditional records assuming one dimension
per attribute). 
Spatial Access Methods (known as SAMs) which are used to organize point objects as 
well as arbitrary shaped objects (e.g. line segments, polygons).