Meeting
Agenda Meeting
Agenda
http://www.microsoft.com/canada/events/
Would you like to become a more effective classroom presenter by learning
how to prepare better, respond to your audience, control nervousness, and
improve your use of visual aids? During this interactive workshop,
you will receive practical, easy-to-apply tips on all of these topics.
The workshop will leave you with new material as well as give you a chance
to draw on your own experience. During the workshop, you will also
participate in some interesting and valuable exercises for presenters.
And at the end, you will receive handouts of tips on various aspects of
presentation skills. Youll be able to apply what you learn at your
next presentation!
Roberta Cochrane, IBM Almaden Research Center, will speak on ``Intersection Stacking for Multi-dimensional Aggregation in RDBMSs
ABSTRACT
Business Intelligence applications perform
complex aggregation for large amounts (typically
1 to 10 Terabytes) of data. This puts
increasing demands on database systems to provide
native support for such processing, often referred to
as Online Analytical Processing (OLAP). SQL
has recently extended the group-by clause
to provide primitives for common OLAP computations in the
DBMS, allowing the DBMS more flexibility
in processing and optimizing
such aggregation. These computations are
the data-cube, rollup, concatenations of rollup
(multi-dimensional cube), and combinations of ad-hoc
grouping elements. The specification of the group-by
clause can expand into many grouping sets. For example,
the cube alone will result in 2**n grouping sets where n is the number
of grouping elements. In this talk I will present the SQL
OLAP extensions and describe a novel technique for stacking grouping operations.
Our technique results in linear expansion of grouping sets, greatly reducing
the amount of complexity and resources required to optimize and compute
such queries.ce, control nervousness, and improve your use of visual
aids? During this interactive workshop, you will receive practical,
easy-to-apply tips on all of these topics. The workshop will leave
you with new material as well as give you a chance to draw on your own
experience. During the workshop, you will also participate in some
interesting and valuable exercises for presenters. And at the end, you
will receive handouts of tips on various aspects of presentation skills.
Youll be able to apply what you learn at your next presentation!
Dan Ford, IBM Almaden Research Center, will speak on ``Grand Central Station: Searching all digital sources of data
ABSTRACT
Grand Central Station is a system that extends search to all digital sources of data. The system consists of components to access and understand data sources and generate searchable metadata ("Gatherers"), a metadata repository for satisfying ad hoc queries, and an extensible profiling system for processing persistent queries.
The Gatherer is an extensible crawler framework written in Java that
is capable of using a variety of protocols (e.g., http, ftp, nntp, odbc,
cics, pop3) to access and understand a wide range
of data formats (HTML, Java Bytecode, PowerPoint,
TAR/Zip archives, and many others). The Gatherer
generates summaries of each data source it encounters
in an instance of XML we call
SumML (Summary Metalanguage). Key features
of the Gatherer are its ability to be
easily extended by adding protocol and data source specific code,
and its ability to r un, unchanged, on
any platform that supports Java.
The metadata repository is less advanced,
but the Profiling framework is moving forward
to encompass multimedia profiling. The system has been deployed
in the form of a Java specific search
engine called "jCentral" and is accessible from IBM's Java home page. This
talk will present and demonstrate the system, and discuss future
directions into searching video, image and audio.
``The LEP Learning System: An IVSA Approach''
Jian Zhang, Ph.D. candidate, Comp. Sci., Univ. of Regina