ACM DEBS 2012- Second Call for Papers
by Adrian Paschke
=====================================================================
DEBS2012
6th ACM International Conference on Distributed Event-Based Systems
July 16-20, 2012
Freie Universitaet Berlin, Berlin, Germany
http://www.csw.inf.fu-berlin.de/debs2012
=====================================================================
The objectives of the 6th ACM International Conference on Distributed
Event-Based Systems (DEBS) are to provide a forum dedicated to the
dissemination of original research, the discussion of practical insights,
and the reporting of relevant experience relating to event-based computing
that was previously scattered across several scientific and professional
communities. The conference also aims at providing a forum for academia and
industry to exchange ideas, for example, through industry papers and demo
papers.
DEBS 2012 Tracks
================
The conference will consist of the following tracks:
- Research track featuring high quality research paper on relevant topics.
- Industry track with two sub-tracks: industry full papers and industry
experience reports.
- Tutorials geared towards either the research or the industrial
communities.
- Demos and posters.
- The DEBS 2012 Grand Challenge is a problem solving competition for
commercial and research event-based systems.
- Gong show: The gong show will consist of short presentations about
visionary and outrageous ideas towards the next generation of event-based
systems. The audience will vote for the best idea.
- Doctoral workshop
Important Dates
=======================
- Abstract submission for research and Industry papers and Industry
experience reports: February 27, 2012
- Grand Challenge participation intent (non-binding): February 27, 2012
- Research, Industry and Tutorial papers submission, and (optional) Industry
experience report submission: March 5, 2012
- Grand Challenge problem description: March 7, 2012
- Author notification for tutorials, research and Industry papers, and
Industry experience reports: April 30, 2012
- Poster and demo submission: May 2, 2012
- Grand Challenge Solutions including 4 page papers: May 2, 2012
- Doctoral Workshop submission: May 2, 2012
- Grand Challenge abstracts: May 2, 2012
- Author notification for poster, demo, Challenge, PhD papers: May 16, 2012
- Conference: July 16-20, 2012
Paper Submission
=======================
Submissions will be accepted in the following tracks:
Research track;
Industry track;
Tutorials Track;
Demos& Posters;
Grand Challenge;
Doctoral Workshop.
All submissions must be original and unpublished. Accepted papers will be
published by ACM and disseminated through the ACM Digital Library.
More information about the tracks and submission information can be found on
the DEBS 2012 website:
http://www.csw.inf.fu-berlin.de/debs2012/calls.html
Scope of the Conference
=======================
The topics addressed by the conference include (but are not
limited to):
Models, Architectures and Paradigms
- Event-driven architectures
- Basic interaction models
- Event algebras, event schemas and type systems
- Languages for event correlation and patterns, streaming and continuous
queries, data fusion
- Models for static and dynamic environments
- Complex event processing
- Design and programming methodologies
- Event-based business process management and modeling
- Experimental methodologies
- Performance modeling and prediction based on analytic approaches
- Functional Reactive Programming
Middleware Infrastructures for Event-Based Computing
- Federated event-based systems
- Middleware for actuator and sensor networks
- Algorithms and protocols
- Optimization techniques for event-based (or streaming) systems
- Event dissemination based on p2p systems
- Context and location awareness
- Fault-tolerance, reliability, availability, and recovery
- Security issues
- (Self-)Management
- Mobility and resource constrained device support
- Streaming queries, transformations, or correlation engines
- Logic-based event processing
- Semantic event processing
- Business Process Management with events
Applications, Experiences, and Requirements
- Use cases and applications of event-based systems
- Real-world application deployments using event-based middleware
- Domain-specific deployments of event-based systems
- Real-world data characterizing event-based applications
- Benchmarks, performance evaluations, and testbeds
- Application requirements for next-generation event-based solutions
- Relation to other architectures
- Enterprise application integration
- Event-driven business process management
- Information logistics
- Seamless integration of event-based mechanisms into middleware platforms
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14 years
rule with array
by shawn
Hi,
I meet a problem to find an element in an array.
First, I have a 2 dimensional array and a 1 dimensional array.
I need to compare whether the element in 2 dimensional array is as same as 1
dimensional array.
How to solve it?
Like:
In Java - int [][] A; int [] B;
how to iterate array A and array B to find which element is the same in
Drool?
--
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14 years
Regex parsing of drl file versus Visitor pattern
by mikeg
My project uses Drools type declarations with custom annotations that are
used to assist in the dynamic mapping of underlying domain data to drools
fact types.
I need to provide a Swing user interface for rule creation that guides the
user through the custom type declarations, rules, and functions. Guvnor
doesn't seem to be a good fit.
I've looked at drools-verifier (and the older DrlDumper class) and its use
of the Visitor pattern to traverse a rule package, but it is a lot of work
to implement just for the type declaration enhancements. Producing
identical DRL to the imported file seems difficult. Also, any inline
comments and formatting is lost.
Alternatively, I could parse (via regex patterns) the DRL to extract the
type declarations, rules, and functions and then reconstruct the complete
package file. This seems simpler, though brittle. Also, the regex gets
complicated when attempting to get extended information (metadata,
annotations, etc.).
Any thoughts on either approach? Is there an easier way to process a rules
file into a simple data model that doesn't lose the original DRL syntax?
--
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14 years
ConsequenceException when using modify
by Vakimshaar
Hi everybody,
I have been struggling with a problem for a few hours now.
Basically, what I am trying to do is set a default value to variable1 in a
first rule. Then executes an other rule that checks the value of variable1
and set variable2 to a specific value under some conditions. Right now, my
rules go like this :
rule "First rule: default"
salience 10
lock-on-active true
when
$myObject : MyObject()
then
modify($myObject) {
setVariable1(defaultValue);
}
end
rule "Second rule"
salience 0
lock-on-active false
when
$myObject : MyObject(variable1 == defaultValue)
then
$myObject.setVariable2(value2);
end
When those rules are executed, an exception is thrown :
org.drools.runtime.rule.ConsequenceException: rule: First rule: default
...
Caused by: java.lang.NullPointerException
When I remove the "modify" in the first rule, the exception is not thrown
but obviously the second rule is not properly executed ...
What is the problem ? What am I doing wrong ?
Thanks for your help!
Vak'
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14 years
Failed to get rules from Guvor after apply Security using Tomcat and JAAS
by mujoko mujoko
Dear Rules Users,
Previously, I use guvnor with no security.
Now, my boss wants me to apply security on guvnor.
The way I implement is use this link
http://ngjweb.wordpress.com/2011/12/07/drools-guvnor-manage-access-part-2/
which is using realm of tomcat and create a table is the system for guvnor
user.
I tested from browser, the security is working fine even more than 10 users
access concurrently.
But when my application access the guvnor and try to create the knowledge
base. It's becoming intermittent.
After several time access the guvnor, the guvnor is hang/can not access
even from browser.
Here is the exception I got
java.lang.RuntimeException: java.io.IOException: Server returned HTTP
response code: 401 for URL:
http://localhost:9090/guvnor/org.drools.guvnor.Guvnor/package/com.rbtsb.t...
pCDR-LocalcallWithBRemarks.drl
....
at
org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:692)
at
org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:37
The way our app access the guvnor after apply security is as below.
Snipped Code
UrlResource urlResource = (UrlResource)
ResourceFactory.newUrlResource(ruleUrl);
urlResource.setBasicAuthentication("enabled");
urlResource.setUsername("admin");
urlResource.setPassword("admin");
builder.add(urlResource,ResourceType.DRL);
--
Mujoko
http://www.linkedin.com/in/mujoko
14 years
Can we edit "view source " option in Drools Guvnor
by Veera
Hi All,
I dont know wheter it is possible or not.
i was create a one Decison Table with 100 rules( 100 rows) , So i want to
copy
this decision table into another new Guvnor
(if i export the repository i am loosing the data which is there already in
new Guvnor )
So my requirement is to copy the Decision table into new Guvnor without
loosing the existing data in
new Guvnor.
(OR) else is there any way to edit the "view source" option , So that i can
copy the code into the new
Guvnor...
Thanks in Advance,
Regards,
Veera
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14 years
