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The Third International Conference on Social SOTICS 2013 |
| Tutorials |
T1.
The Hadoop Core - Understanding Map Reduce and the Hadoop Distributed File System
M.Sc. Daniel Kimming, Karlsruhe Institute of Technology, Germany
Prof. Dr. Andreas Schmidt, Karlsruhe University of Applied Sciences, Germany
T2.
New Applications of Virtual and Augmented Reality in Medicine and Surgery
Prof. Dr. Lucio Tommaso De Paolis, University of Salento - Lecce, Italy
DETAILS
T1.
The Hadoop Core - Understanding Map Reduce and the Hadoop Distributed File System
M.Sc. Daniel Kimming, Karlsruhe Institute of Technology, Germany
Prof. Dr. Andreas Schmidt, Karlsruhe University of Applied Sciences, Germany
In the last decade the amount of created digital data was growing exponentially. Different estimations support that 90% of all available digital data was generated in the last two years. So, for many application-fields like genomics, astronomy, RFID, internet search indexing, medicine etc. the classical scale-up strategies (get more main memory, faster CPU, faster and bigger disks) has reached its limits. Instead a new class of distributed database applications were established recently, following the so called scale-out approach (add more commodity hardware to a distributed system). Hadoop is probably the most popular representative of such a system following the new programing paradigm MapReduce. The storage component (Hadoop Distributed File System – HDFS) transparently supports partitioning, distribution, and replication. Together with MapReduce it allows an easy to understand new computational model for distributed, scalable, parallel processing on unreliable hardware.
The tutorial contains both theoretical and practical parts. For the practical exercises a preinstalled Hadoop-cluster in the cloud will be provided, which can be accessed from the participants laptops. As preinstalled software, a ssh client (i.e. putty.exe for windows users) is needed.
Outline: 1. General Architecture 2. Hadoop Distributed File System (HDFS) 3. The Map-Reduce Algorithm 4. Further components of the ecosystem (Hive, Pig)
Session duration: about 2.5/3 hours
T2.
New Applications of Virtual and Augmented Reality in Medicine and Surgery
Prof. Dr. Lucio Tommaso De Paolis, University of Salento - Lecce, Italy
Our definition of reality depends largely on our senses and how we perceive things around us. Virtual Reality (VR) aims at stimulating the senses to create a virtual world that is indistinguishable from the “real” world. We can then go one step further and provide a greater ranges of the various senses than what humans usually have. The synthetic world is not static, but responds to the user inputs and it can be modified in real time. Interactivity and captivating power contribute to the feeling of immersion in the virtual world, of being part of the action that the user experiences. It is not only possible to see and manipulate the virtual objects, but also to feel and touch them using specific haptic devices. The last few years have witnessed scientific advances in Virtual Reality, allowing virtual training environments to get closer and closer to reality. Interesting learning situations can emerge with free interaction in these simulated realities. In addition, the integration of pedagogical functions and motivational aspects as in serious gaming and interactive storytelling, offers new possibilities for training and allows the creation of relevant situations on the learning level.
Mixed Reality (MR) and Augmented Reality (AR) technologies permit the real-time fusion of computer-generated digital content with the real world and allow the creation of fascinating new types of user interfaces. Augmented Reality enhances the users' perception and improves their interaction in the real environment. The virtual objects, displaying information that they cannot directly detect with their own senses, help them to perform real-world tasks better. Unlike the Virtual Reality technology that completely immerses users inside a synthetic environment where they cannot see the real world around them, Augmented Reality technology allows to see 3-dimensional virtual objects superimposed upon the real environment. Therefore, AR supplements reality rather than completely replacing it; the user is under the impression that the virtual and real objects coexist in the same space.
VR/AR concepts are applicable to a wide range of applications (medical, entertainment, military, design, manufacture, maintenance, arts and cultural heritage) moving from pure academic research into industrial and potential consumer areas. In particular, these technological innovations have provided medicine and surgery with new tools for diagnosis and therapy definition and allow surgeons to practice and rehearse the surgical procedures on virtual patients, who are realistic replicas of living patients. A new form of medical education has then become possible by translating the information contained in medical images into a set of 3D models in order to obtain a kind of digital clone of the real patient and to experiment various scenarios without risks for the patients. In addition, advances in Augmented Reality technology are making it possible to develop systems that can help surgeons to perform their tasks in ways that are both faster and safer. This technology in surgery has the potential to bring the advantages of open-surgery visualization also in minimally invasive surgery.
Recently, new concepts such as Natural User Interfaces and Mobile Immersion have emerged and permit to combine AR/MR technologies with new mobile human machine interfaces. Consequently, mobile immersion will allow users to move away from purely physical communication mode to a mixed/augmented reality communication, interaction and collaboration mode. Interactions will be natural and augmentations will become ubiquitous.
This tutorial is intended to bring together researchers from academia and industry in computer science, electrical engineering, physics, and clinical and to share points of views and emerging impressions on the future of Virtual Reality and Augmented Reality technologies and on the developing of advanced human-computer interfaces.
