Infobright.org Forums

Is there some good reference for those theory?

2012-01-25T22:08:53-04:00

Hello,

anybody knows what kind of theory is in behind for those article below?

Theoretically, an Infobright table can go up to 147 trillion rows, but practically, 50 billion is the limit today – a count which greatly depends on the data row size and datatypes used (i.e. the row limit could go higher depending on the row size).

http://www.nileshpawar.com/mysqlexpert/2011/06/data-warehousing-with-mysql-and-infobright/

any help will be great and welcome.

Best regards,

Shingo

Ice Talend

2011-06-29T05:59:24-04:00

Hi,
I’ve downloaded ICE-Talend VM. I’ve connected to Ice as instructed using SQLYOG. I want to know whether i can copy tables from MSSQL server to Infobright Using this client? If so which client would be more user friendly to work on?

Sampath.

I am facing problem with instalation of Infobright Community Edition and Talend Open Studio tool

2011-06-22T08:58:13-04:00

getting error while extracting the Infobright Community Edition and Talend Open Studio tool(ice32-352p1-TOS412-vm). how can I use talend tool for infobright?

what software I have use for unzip this zip file . please specify with version also.

error message: skipping : ice 32.vmdk: this file is not in the standard zip 2.0 format . please see http://www.winzip.com/zip20.htm for more info.

I am getting the above error message while unzip the file.
Is it required any old version soft ware for unzip?

Using data content semantics in databases

2010-10-31T16:38:29-04:00

Hi,

The trigger to begin this topic is our paper published at CIKM 2010. I can’t attach the paper itself (the publishers wouldn’t probably like it) but I paste the abstract. You can also find the related presentation attached to one of my blogs.

So, here is the paper:

===================

TITLE: Injecting Domain Knowledge into a Granular Database Engine - A Position Paper

AUTHORS: Dominik Slezak & Graham Toppin

ABSTRACT: We discuss how to use techniques from such fields as text processing and knowledge management to better handle text attributes in the Infobright’s RDBMS engine. Our approach leads to a rich interface for domain experts who wish to share their knowledge about data content and, on the other hand, it remains unnoticeable to data users. It enables to improve data storage, data access, and data compression, with no changes required at the database schema level.

===================

There is more to come…

Best greetings,

Dominik

Rough Data Contest & RSFDGrC 2009 Conference

2009-02-25T11:35:35-04:00

Hello,

I open this thread in relation to the recent blogs about the Knowledge Grid-related data (aka Rough Data):

http://www.infobright.org/index.php/Blog/Entry/rough_data_contest/

http://www.infobright.org/index.php/Blog/Entry/rsfdgrc_2009_conference_rough_data_contest_2/

We’re going to proceed with organizing the Rough Data Contest at the following international conference:

http://web.iitd.ac.in/~rsfdgrc09/

I attach the official contest announcement and the conference poster.

Best greetings,

Dominik

SIGMOD 2009 Day by Day

2009-06-30T07:25:37-04:00

Hello,

Welcome to SIGMOD 2009 forum!

As introduced in the blog (http://www.infobright.org/Blog/Entry/good_morning_sigmod/), I’ll use this thread for more real-time updates.

Let me start with listing some sessions that we’ll probably attend:

—Industry 1, Data Warehouses (http://www.sigmod09.org/program_sigmod.shtml#ind1)

—Research 5, Large Scale Data (http://www.sigmod09.org/program_sigmod.shtml#res5)

—Research 8, Column Stores (http://www.sigmod09.org/program_sigmod.shtml#res8)

—Research 11, Optimization (http://www.sigmod09.org/program_sigmod.shtml#res11)

—Industry 4, Optimization (http://www.sigmod09.org/program_sigmod.shtml#ind4)

—Invited, Systems Research (http://www.sigmod09.org/program_sigmod.shtml#invited)

—Industry 5, Transactions (http://www.sigmod09.org/program_sigmod.shtml#ind5)

—Industry 6, Directions (http://www.sigmod09.org/program_sigmod.shtml#ind6)

And of course keynotes, awards…

Comments welcome!

Best greetings,

Dominik

Data Mining in Warehousing

2008-11-07T08:27:38-04:00

I tried to summarize possible ways of thinking about data mining in the context of data warehousing:

http://www.infobright.org/Open-Source/Blog/Academic

It’s certainly just a starting point for discussion. My observations are rough rather than exact.

I’ll be grateful for the comments on this topic… On my side, I’ll follow up with some examples soon…

Best greetings,

Dominik

Various Types of Inexact Data

2009-04-01T21:44:06-04:00

I open this thread to discuss various cases of data with values not necessarily crisply defined.

This is the topic getting more and more popular in theory and applications (see e.g. ICDE 2009 thread).

Among various examples of inexact data, let me refer to non-deterministic information systems (see academic projects thread, #1 and #2), as well as to Infobright’s Knowledge Grid as the source of rough data (see rough data contest thread as well as relevant posts on our academic blog).

Certainly, all those sources of inexact data require specific solutions with respect to specific applications. Nevertheless, let’s try to discuss them within the same thread. I believe that in this way we’ll be able to address some common high-level aspects, with no harm for more detailed discussions about particular cases.

Best greetings,

Dominik

PS: H.S. suggested starting posts with subtopics, e.g.: “Subtopic: Non-deterministic information” or “Subtopic: Interval information” to better navigate through this thread. I guess it may work out well. I’ll try to remember about it while posting.

Approximate Querying

2009-01-22T23:17:24-04:00

Hello,

Isn’t it just a matter of time when database users will have to accept approximate queries?

I open this thread in relation to the recent blog:

http://www.infobright.org/Blog/Entry/approximate_querying/

I’d be grateful for everyone’s opinion!

Best greetings,

Dominik

What are rough sets?

2008-09-03T08:50:18-04:00

Can somebody explain in one or two sentences?
One aspect is extension of set theory, where an element (1) can belong to a set, (2) can belong to the complement of a set, (3) can belong to the boundary of set, so we can not precisely say whether it belongs or not to the set.