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06:42 Leibniz Universität Hannover (LUH) English 2012

Human Resources

  • Published: 2012
  • Publisher: Leibniz Universität Hannover (LUH)
  • Language: English
04:32 Leibniz Universität Hannover (LUH) English 2012

Task Groups

  • Published: 2012
  • Publisher: Leibniz Universität Hannover (LUH)
  • Language: English
39:51 PGCon - PostgreSQL Conference for Users and Developers, Andrea Ross English 2015

Scalable MVCC solution for Many core machines

In Current MVCC solution of PG, ProcArrayLock is the major bottleneck on many core machine 120+ and can scale up to 30 connections in TPCC test. Done experiment with lock free MVCC solution, and it can Scale up to 120 cores. In Current MVCC solution of PG, ProcArrayLock is the major bottleneck on many core machine 120+ and can scale up to 30 connections in TPCC test. Done experiment with lock free MVCC solution, and it can Scale up to 120 cores. We have taken the CSN based solution proposed in PG community, and implemented a lock free version of the same. By considering the High Memory and other resources in many core machines, locks are avoided in all the performance patch and only in some rare paths locks are used.
  • Published: 2015
  • Publisher: PGCon - PostgreSQL Conference for Users and Developers, Andrea Ross
  • Language: English
32:23 FOSDEM VZW English 2016

Illumos at 5

  • Published: 2016
  • Publisher: FOSDEM VZW
  • Language: English
24:33 Weierstraß-Institut für Angewandte Analysis und Stochastik (WIAS), Technische Informationsbibliothek (TIB) German 2017

Make the most of your audio-visual simulation data

Visualisations of mathematical simulations play an important role in the communication of research results. However, in most cases simulation data is shown in publications either as snapshots or as supplemental videos. Either way, the full potential of visualized simulations is not exploited. This talk will show how the TIB AV-Portal supports researchers to uncover the hidden potential of visualisations such as simulations and animations and how this can help to increase the impact of their publications.
  • Published: 2017
  • Publisher: Weierstraß-Institut für Angewandte Analysis und Stochastik (WIAS), Technische Informationsbibliothek (TIB)
  • Language: German
27:38 FOSDEM VZW English 2014

What's cooking in GStreamer

This talk will take a look at what's been happening in the GStreamer multimedia framework as of late and what shiny new features you can expect to land in the near future. It is targeted at both application developers and anyone interested in multimedia on the Linux desktop and elsewhere. GStreamer is a highly versatile plugin-based multimedia framework that caters to a whole range of multimedia needs, whether desktop applications, streaming servers or multimedia middleware; embedded systems, desktops, or server farms. It is also cross-platform and works on Linux, *BSD, Solaris, OS/X, Windows, iOS and Android. In late 2012 GStreamer 1.0 was released, the next generation of the rather successful GStreamer 0.10.x API series. 1.2 was released just about year later towards the end of 2013 sporting quite a few new features. With 1.4 already in the making and 1.6 on the horizon, we'll take a bird's eye view at what's new and improved and what upcoming new features you can look forward to. Does hardware-accelerated video playback finally work out of the box on the Linux desktop? Can you get a list of available devices now? Does Blu-ray playback work? How about OpenGL? Will it work on Wayland? Can you use it on the Raspberry Pi? Join us to find out!
  • Published: 2014
  • Publisher: FOSDEM VZW
  • Language: English
24:10 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2015

Geosocial Big Data Analysis Using Python and FOSS4G with the Case Study of Korean Data

Nowadays, there are many researches on the analysis of Geosocial big data, such as geotweeet and as foursquare venues and OSS(Open Source Software) has an important role on this. In the analyzing geosocial big data, there are several different steps such as data collection, data parsing, data conversion, statistical analysis, visualizing and database management. So, the integrated system architecture and the compatible analysis environment has a key role to acquire the relevant analysis results. The Python programming support the interoperable analysis environment for the various and different software functions and enable to process for geosocial big data in the integrated platforms. FOSS4G support software environment for geovisualization and data management for the collected data. In this study, the way and process of geosocial big data analysis is introduced with case study of geotweet and foursquare venues and the analysis results are presented with the case study of Korean data. For this study, Python API libraries for tweeter(tweepy) and foursquare(pyforsquare) used to collect the geosocial data, and Pandas and Simplejson are used to parse and extract the valid data, and GDAL and PySAL are used to convert and analyze for GIS data. PyTagCloud and WordCloud are used to visualize the qualitative text. MongoDB is used to store the collected dataset and QGIS are applied for the geovisualization.
  • Published: 2015
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
48:58 Chaos Computer Club e.V. English 2015

Advanced interconnect attacks

The largest weaknesses of mobile network are well hidden from users: Information exchanged between different mobile networks expose users to fraud and privacy risks.
  • Published: 2015
  • Publisher: Chaos Computer Club e.V.
  • Language: English
1:15:05 Heidelberg Laureate Forum Foundation English 2018

6th HLF – Laureate Lectures: Time, Einstein and the Coolest Stuff in the Universe

William D. Phillips: "Time, Einstein and the coolest stuff in the universe" At the beginning of the 20th century Einstein changed the way we think about Time. Now, early in the 21st century, the measurement of Time is being revolutionized by the ability to cool a gas of atoms to temperatures millions of times lower than any naturally occurring temperature in the universe. Atomic clocks, the best timekeepers ever made, are one of the scientific and technological wonders of modern life. Such super-accurate clocks are essential to industry, commerce, and science; they are the heart of the Global Positioning System (GPS), which guides cars, airplanes, and hikers to their destinations. Today, the best primary atomic clocks use ultra-cold atoms, achieve accuracies of about one second in 300 million years, and are getting better all the time, while a new generation of atomic clocks is leading us to re-define what we mean by time. Super-cold atoms, with temperatures that can be below a billionth of a degree above absolute zero, use, and allow tests of, some of Einstein's strangest predictions. This will be a lively, multimedia presentation, including exciting experimental demonstrations and down-to-earth explanations about some of today's hottest (and coolest) science.
  • Published: 2018
  • Publisher: Heidelberg Laureate Forum Foundation
  • Language: English
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Version

AV-Portal 3.8.0 (dec2fe8b0ce2e718d55d6f23ab68f0b2424a1f3f)