1. Research School
11th WS on Interoperable Social
Multimedia Applications (WISMA 2010)
WISMA
Workshop
19 May 2010
Dejan Kovachev
A Cloud Multimedia Platform
Ralf Klamma
Dejan Kovachev & Ralf Klamma
May 19th, 2010
Informatik 5 (Information Systems), RWTH Aachen University
&
Bonn-Aachen International Center for Applied Information Technology
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke Barcelona, Spain
I5-KoKl-0510-1

2. Research School
Agenda
Motivation
WISMA
Workshop

19 May 2010
Dejan Kovachev
 Cloud Computing Concepts
 Multimedia & Cloud Computing
Ralf Klamma
 Case Studies
– Multimedia processing & metadata
– SNA in the Cloud
– Mobile Multimedia Elastic
Cloud Applications
 Summary
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke (Image: http://lonewolflibrarian.wordpress.com/)
I5-KoKl-0510-2

3. Research School
Motivation/Trends
Web as a channel for mass social interaction and
WISMA
Workshop

19 May 2010
collaboration
User Generated Content (UGC)
Dejan Kovachev
Ralf Klamma 
– Information overload
 Large data volumes
– US American consume 34 GB per day (2009); mostly video
 Pay-per-use Computing
– Costs are based on consumption (CPU cycles, storage)
– Not having to buy and configure new equipment
– No software/hardware maintenance
Lehrstuhl Informatik 5
(Informationssysteme)
 Novel data processing systems
Prof. Dr. M. Jarke
I5-KoKl-0510-3

4. Research School
What is Cloud Computing?
WISMA
Workshop
19 May 2010
Dejan Kovachev
Ralf Klamma
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke
I5-KoKl-0510-4

5. Research School
Cloud Computing – Driver of new
technologies
WISMA
Workshop
19 May 2010
Dejan Kovachev
Ralf Klamma
Lehrstuhl Informatik 5
(Informationssysteme) (Image: http://blogs.zdnet.com/hinchcliffe)
Prof. Dr. M. Jarke
I5-KoKl-0510-5

6. Research School
Needs for a Cloud Multimedia
Platform
Speed-up getting the idea to market for new multimedia app
WISMA
Workshop

19 May 2010
concepts
Diverse resource requirements during the app lifecycle
Dejan Kovachev
Ralf Klamma 
 Avoidance of disasters resulting from the success
 Fast development of scalable multimedia resources
 Flexible and comprehensive services
 Cost reduction IT Resources Needs
(Image: www.rightscale.com)
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke
I5-KoKl-0510-6 time

7. Research School
A Cloud Multimedia Architecture
WISMA
Workshop
Interface
Service
19 May 2010
services
Custom
Multimedia Storytelling
SNA Services …
Services Services
Dejan Kovachev Principal Properties:
Ralf Klamma
 Scalability
Programming  Elasticity
Interface
Platform
Message Broker Framework
 Abstraction
MapReduce HDFS HBase  Simplicity
 Interoperability
 Distributed
Data Management
Sun LDoms
Infrastructure Interface
 Responsive
Control Domain Start
Services
Sun Enterprise T5240
Monitor
Stop
Load Balancer  Service
Sun LDoms Orchestration
Database Master
Guest Domain
User Manager
Lehrstuhl Informatik 5
(Informationssysteme) Security Manager
Prof. Dr. M. Jarke
I5-KoKl-0510-7

8. Research School
Multimedia processing
and metadata management
“Cloudification” of Virtual Campfire Scenario (Renzel et al. 2009)
WISMA
Workshop

Management and analysis of terabytes of digital multimedia
19 May 2010

data
Dejan Kovachev
Ralf Klamma
 Combination of multimedia semantics with different semantic
sources (Dbpedia, GeoNames)
 Context-aware semantic query processing on distributed
metadata sources (Schenk et al. 2009, Urbani 2009)
 Context-aware mobile multimedia applications
(Kovachev & Klamma 2009)
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke
I5-KoKl-0510-8

9. Research School
SNA in the Cloud:
Visualization of Knowledge Network
WISMA
Workshop (Pham & Klamma 2010)
19 May 2010
Dejan Kovachev
Ralf Klamma
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke
I5-KoKl-0510-9

10. Research School
Social Network Analysis in the Cloud
AERCS*: Academic Event Recommender system for
WISMA
Workshop

19 May 2010
Computer Scientists (Pham, Cao & Klamma 2009)
Semantics mining
Dejan Kovachev
Ralf Klamma 
 Data collections
– DBLP: 1,226,412 publication entries
– CiteSeerX: 7,385,652 publication entries
 Network parameters
– Clustering, PageRank, diameter, centrality degree
 Recommendations
– Similarity search
Lehrstuhl Informatik 5
(Informationssysteme)
– Recommendation generation
Prof. Dr. M. Jarke
I5-KoKl-0510-10 * http://bosch.informatik.rwth-aachen.de:5080/AERCS/

11. Research School
Mobile Multimedia Elastic Cloud
Applications
WISMA
Workshop
19 May 2010
Interface
Dejan Kovachev
Service
services
Custom
Multimedia Storytelling
SNA Service
Ralf Klamma
Services Services
Mobile App
AppCore
Message Broker Programming Framework
RabbitMQ
Hadoop,
Interface
AppComponnet
Platform
AppComponent
MapReduce BigTable Hbase
AppComponent Component Container
Elasticity Manager
Sun LDoms
Infrastructure Interface
Context Sensing Start
Control Domain
Sun Enterprise T5240
Monitor
Load Balancer
Stop
Database Master
Sun LDoms
Guest Domain
User Manager
Security Manager
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke
I5-KoKl-0510-11

12. Research School
Summary
Cloud computing comes in many shapes and sizes from
WISMA
Workshop

19 May 2010
infrastructure, to middleware, to entire platforms
Dejan Kovachev
Ralf Klamma – On-demand, elastic scalability, usage-metered
 Cloud computing is a new operations delivery model
– Driver of new data processing systems and technologies
 Fast development of scalable multimedia services
 Focus on the applications logic
– The heavy lifting of scaling in the cloud services layer
 Application to different domains sharing similar needs
 Benefits of Cloud computing for multimedia systems
What is reasonable to be in the Cloud?
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke

I5-KoKl-0510-12

13. Research School
Feedback? Questions?
Thank You!
WISMA
Workshop
19 May 2010
Dejan Kovachev
kovachev@dbis.rwth-aachen.de
Ralf Klamma
@dkovachev
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke
I5-KoKl-0510-13