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24:20 FOSSGIS e.V. German 2014

Neues vom Open Geospatial Consortium

Die Standards des OGC sind aus den meisten Geodateninfrastrukturen, Geoportalen und WebGIS-Lösungen nicht wegzudenken. Viele Ausschreibungen setzen den Einsatz von OGC Standards voraus und Richtlinien wie die INSPIRE Direktive basieren auf ISO und OGC Standards. Wie in den Jahren davor, werden in diesem Vortrag Neuigkeiten aus dem OGC vorgestellt und Fragen aus dem Publikum beantwortet. Nach einer kurzen Einführung, in der unter anderem das Memorandum of Understanding zwischen der OSGeo und dem OGC dargestellt wird, wird das OGC Compliance Programm (Software Zertifizierung) näher erläutert und die Rolle von Open Source Software und der OSGeo Community. Abschließend wird erklärt, was sich hinter dem Ideas4OGC Prozess verbirgt und ein Ausblick auf das OGC Technical Committee Meeting im März 2014 gegeben.
  • Published: 2014
  • Publisher: FOSSGIS e.V.
  • Language: German
25:07 FOSSGIS e.V. German 2014

Einsatzmöglichkeiten von Open Source GIS im Geomarketing

Einsatzmöglichkeiten von Open Source GIS im Geomarketing Im modernen Marketing eines Unternehmens wächst der Bedarf an Geomarketing-Funktionalitäten ständig. Jedoch werden viele Unternehmen von der Tatsache, dass ein Software-Paket und die passenden Daten sehr kostenintensiv sind, abgeschreckt. Trotzdem können viele Unternehmen nicht auf entsprechende Tools verzichten. In den letzten Jahren entstand ein großer Markt für frei zugängliche Software, darunter auch Geographische Informationssysteme (Open Source GIS), die als Basis für Analysen im Geomarketing dienen können. Dieser Markt wächst stetig weiter. Der Beitrag soll die Einsatzmöglichkeiten von Open Source GIS im Geomarketing analysieren (use cases) und aufzeigen, welche Systeme sich für Fragestellungen im Geomarketing besonders eignen. Auf Basis von verschiedenen Kriterien wird eine Evaluierung der Systeme durchgeführt und die daraus abgeleiteten Erkenntnisse für die optimale Wahl eines der gängigen Open Source GIS vorgestellt. Dabei stehen sowohl Aspekte des klassischen Marketings als auch insbesondere des Geomarketings im Vordergrund.
  • Published: 2014
  • Publisher: FOSSGIS e.V.
  • Language: German
41:32 droidcon Berlin English 2015

Android reactive programming with Rxjava

In a world where there is a smartphone in every pocket, designing and building applications that can run smoothly and provide the User Experience that users will like it’s the only way to go. Reactive Programming style with RxJava will help you to beat Android Platform limitations to create astonishing Android Apps. This talk will be a practical journey from basic Reactive Programming and Observer Pattern concepts to the main feature of RxJava, with practical code examples and a real-world app. I'll show the audience how to create an Observable "from scratch", from a list or from a function we already have in our code base. Our listeners will learn how to filter an Observable sequence to create a new sequence containing only the values we want; they will learn how to apply a function to an Observable, how to concatenate, merge or zip Observables. I'll show how to enjoy RxAndroid Schedulers to overcome the threading and concurrency hell in Android. I will close the talk with a practical example about RxJava + Retrofit, to easily communicate with a REST API.
  • Published: 2015
  • Publisher: droidcon Berlin
  • Language: English
1:08:02 FOSSGIS e.V. German 2015

FOSSGIS KonferxPlanBox Anwendertreffen

Mit der xPlanBox können Planwerke der kommunalen Bauleitplanung einfach bereitgestellt werden.
  • Published: 2015
  • Publisher: FOSSGIS e.V.
  • Language: German
55:49 Vanschoren, Joaquin English 2014

Meta-Learning on QSAR data

Can we learn how to design drugs? Topics include: Automating drug discovery with the Robot Scientist. Using chemoinformatic databases and in-house datasets to systematically run extensive comparative QSAR experiments. Learning how to better apply existing QSAR methods. Decreasing the time and cost to develop new drugs. Prof. Dr. Ross D. King is Professor of Machine Intelligence in the School of Computer Science at the University of Manchester. King's research interests are in the automation of science, drug design, AI, machine learning and synthetic biology. He is probably best known for the Robot Scientist.
  • Published: 2014
  • Publisher: Vanschoren, Joaquin
  • Language: English
1:22:24 Hasso Plattner Institut (HPI) German 2009

Aussagenlogik und Prädikatenlogik

  • Published: 2009
  • Publisher: Hasso Plattner Institut (HPI)
  • Language: German
1:36:48 Hasso Plattner Institut (HPI) German 2009

Beschreibungslogiken

  • Published: 2009
  • Publisher: Hasso Plattner Institut (HPI)
  • Language: German
1:21:20 Hasso Plattner Institut (HPI) German 2009

RDFS, RDFa, SPARQL und Triple Stores

  • Published: 2009
  • Publisher: Hasso Plattner Institut (HPI)
  • Language: German
1:19:23 Hasso Plattner Institut (HPI) German 2009

SWRL/RIF

  • Published: 2009
  • Publisher: Hasso Plattner Institut (HPI)
  • Language: German
1:13:36 Hasso Plattner Institut (HPI) German 2009

Resource Description Framework - RDF

  • Published: 2009
  • Publisher: Hasso Plattner Institut (HPI)
  • Language: German
57:26 Hasso Plattner Institut (HPI) German 2009

Einführung (Teil 2) / Vom WWW zum Semantic Web

  • Published: 2009
  • Publisher: Hasso Plattner Institut (HPI)
  • Language: German
1:27:29 Hasso Plattner Institut (HPI) German 2012

13 Semantic Web Technologien - Semantic Search

  • Published: 2012
  • Publisher: Hasso Plattner Institut (HPI)
  • Language: German
1:19:37 Hasso Plattner Institut (HPI) German 2011

01 Semantic Web Technologien - Einführung

  • Published: 2011
  • Publisher: Hasso Plattner Institut (HPI)
  • Language: German
1:23:14 Hasso Plattner Institut (HPI) German 2011

02 Semantic Web Technologien - URI und RDF

  • Published: 2011
  • Publisher: Hasso Plattner Institut (HPI)
  • Language: German
1:38:38 Hasso Plattner Institut (HPI) German 2011

06 Semantic Web Technologien - Beschreibungslogiken

  • Published: 2011
  • Publisher: Hasso Plattner Institut (HPI)
  • Language: German
1:27:08 Hasso Plattner Institut (HPI) German 2011

08 Semantic Web Technologien - OWL und OWL Semantik

  • Published: 2011
  • Publisher: Hasso Plattner Institut (HPI)
  • Language: German
1:27:30 Hasso Plattner Institut (HPI) German 2011

09 Semantic Web Technologien - OWL 2

  • Published: 2011
  • Publisher: Hasso Plattner Institut (HPI)
  • Language: German
1:31:29 Hasso Plattner Institut (HPI) German 2012

11 Semantic Web Technologien - Ontological Engineering

  • Published: 2012
  • Publisher: Hasso Plattner Institut (HPI)
  • Language: German
1:30:23 Hasso Plattner Institut (HPI) German 2011

05 Semantic Web Technologien - Aussagenlogik und Prädikatenlogik

  • Published: 2011
  • Publisher: Hasso Plattner Institut (HPI)
  • Language: German
26:21 Technische Informationsbibliothek (TIB) English 2013

Bringing crystal structures to life in the scientific literature

Crystallographic research frequently involves determination of three-dimensional crystal lattices or molecular structures by diffraction techniques. The adoption of a standard computer-interpretable data description by the International Union of Crystallography (IUCr) has allowed the development of new workflows for its scientific journals. These result in a tight integration of scientific articles with the actual data and metadata that underpin the results that they discuss. Data validation is an integral (and largely automatic) part of the peer review procedure for IUCr journals; the structural models can be visualised directly while reading the published article, and can be used as the basis for interactive database searches and queries. The journals also link and transfer data to curated domain-wide structural databases such as the Protein Data Bank, Cambridge Structural Database and Inorganic Crystal Structure Database. For short structural articles, the actual data files, annotated with the text of the discussion, actually form the submission medium, and tools have been created to allow easy authoring and the creation of interactive molecular graphics.
  • Published: 2013
  • Publisher: Technische Informationsbibliothek (TIB)
  • Language: English
1:31:27 Hasso Plattner Institut (HPI) German 2009

OWL 2

  • Published: 2009
  • Publisher: Hasso Plattner Institut (HPI)
  • Language: German
1:27:23 Hasso Plattner Institut (HPI) German 2012

03 Semantic Web Technologien - RDFS and RDFa

  • Published: 2012
  • Publisher: Hasso Plattner Institut (HPI)
  • Language: German
1:30:24 Hasso Plattner Institut (HPI) German 2012

02 Semantic Web Technologien - URI and RDF

  • Published: 2012
  • Publisher: Hasso Plattner Institut (HPI)
  • Language: German
1:14:17 Hasso Plattner Institut (HPI) German 2012

05 Semantic Web Technologien - Ontologies

  • Published: 2012
  • Publisher: Hasso Plattner Institut (HPI)
  • Language: German
14:25 Moving Pictures, US Army Construction Engineering Research Laboratory English 1987

GRASS

Video presentation explaining the features and capabilities of this computer-based mapping system.
  • Published: 1987
  • Publisher: Moving Pictures, US Army Construction Engineering Research Laboratory
  • Language: English
1:22:17 Stiftung Universität Hildesheim English 2015

Retrieval in the Web II

This lecture gives an overview on Information Retrieval. It explains why documents are ranked the way they are. The lecture explains the most relevant ways for content representation: Automatic indexing and manual indexing. For automatic indexing, the frequencey of word is of special relevance and their influence on the weighting of term are discussed. The most relevant models are introduced. The session on evaluation discusses new metrics like the Normalized Discounted Cumulative Gain. The session of information behavior provides a brief overview and explains the relation to IR. The session on optimization mainly introduces term expansion and fusion methods. The session on Web retrieval is concerned with the quality aspects and gives a basic insight to the PageRank algorithm.
  • Published: 2015
  • Publisher: Stiftung Universität Hildesheim
  • Language: English
41:15 Vanschoren, Joaquin English 2014

OpenML, R, mlr

I will first introduce an R package to interface with OpenML. We support querying and downloading, running experiments and uploading results, so that all your experiments are organized online. R itself allows many forms of machine learning methods and experiments, from completely custom code to powerful semi-automated frameworks. The OpenML package is framework-agnostic in that regard. The mlr package provides a generic, object-oriented, and extensible interface to a large number of machine learning methods in R. It enables researchers and practitioners to easily compare methods and implementations from different packages, rapidly conduct complex experiments, and implement their own meta-methods using mlr's building blocks. Classification, regression, survival analysis, and clustering are supported and virtually every resampling strategy. Meta-Optimization can be performed by tuning, feature filtering and feature selection, and most modeling steps can be parallelized. Its object-oriented structure provides in many cases a close match to the OpenML structure, and it can already be connected to the OpenML R package in a simple manner. The talk will conclude with an outlook regarding the next steps, open challenges and ideas to improve upon the current state of the project.
  • Published: 2014
  • Publisher: Vanschoren, Joaquin
  • Language: English
46:58 Vanschoren, Joaquin English 2014

Estimating the Performance of Predictive Models in R

This talk will start with a very brief introduction to R and the main concepts of this data analysis environment and programming language. We will then shift focus to predictive tasks and models obtained from data to solve these tasks. Finally, the main topic of the talk will be on how to solve the critical issue of estimating the predictive performance of alternative models to solve some task. This estimation process is key to answer the question of which model is the "best" for a problem we are facing. We will describe the facilities provided by the R package performanceEstimation to address this model selection problem and provide some illustrative case studies. We wrap up with the ongoing plans of interfacing this package to OpenML.
  • Published: 2014
  • Publisher: Vanschoren, Joaquin
  • Language: English
16:22 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2013

Working With Spatial Databases With GeoAlchemy

GeoAlchemy helps you use spatial databases from Python. GeoAlchemy provides extensions to SQLAlchemy, the Python SQL toolkit and ORM. GeoAlchemy builds on SQLAlchemy's extreme flexibility, and can be used for different types of applications, from simple scripts to complex web applications. In this talk we will present GeoAlchemy and SQLAlchemy. We will describe when and how SQLAlchemy and GeoAlchemy can be useful. We will demonstrate the power and flexibility of the tools. We will also present the new version of GeoAlchemy, namely GeoAlchemy 2. GeoAlchemy 2 enables leveraging PostGIS' new features. For example, GeoAlchemy 2 supports PostGIS's new raster type. Finally, we will demonstrate how GeoAlchemy integrates with other well-known Python tools, such as Shapely.
  • Published: 2013
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
24:39 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2013

TileServer: Hosting Map Tiles And MBTiles

OpenGIS Web Map Tiling Service (WMTS) is becoming the standard used for distributing raster maps to the web and mobile applications, cell-phones, tablets as well as desktop software. Practically all popular desktop GIS products now support this standard as well, including ESRI ArcGIS for Desktop, open-source Quantum GIS (qgis) and uDig, etc. The TileServer, a new open-source software project, is going to be demonstrated. It is able to serve maps from an ordinary web-hosting and provide an efficient OGC WMTS compliant map tile service for maps pre-rendered with MapTiler, MapTiler Cluster, GDAL2Tiles, TileMill or available in MBTiles format. The presentation will demonstrate compatibility with ArcGIS client and other desktop GIS software, with popular web APIs (such as Google Maps, MapBox, OpenLayers, Leaflet) and with mobile SDKs. We will show a complete workflow from a GeoTIFF file (Ordnance Survey OpenData) with custom spatial reference coordinate system (OSGB / EPSG:27700) to the online service (OGC WMTS) provided from an ordinary web-hosting. The software has been originally developed by Klokan Technologies GmbH (Switzerland) in cooperation with NOAA (The National Oceanic and Atmospheric Administration, USA) and it has been successfully used to expose detailed aerial photos during disaster relief actions, for example on the crisis response for Hurricane Sandy and Hurricane Isaac in 2012. The software was able to handle large demand from an ordinary in-house web server without any issues. The geodata were displayed in a web application for general public and provided to GIS clients for professional use - thanks to compatibility with ArcIMS. It can be easily used for serving base maps, aerial photos or any other raster geodata. It very easy to apply - just copy the project files to a PHP-enabled directory along with your map data containing metadata.json file. The online service can be easily protected with password or burned-in watermarks made during the geodata rendering. Tiles are served directly by Apache web server with mod rewrite rules as static files and therefore are very fast and with correct HTTP caching headers. The web interface and XML metadata are delivered via PHP, because it allows deployment on large number of existing web servers including variety of free web hosting providers. There is no need to install any additional software on the webserver. The mapping data can be easily served in the standardized form from in-house web servers, or from practically any standard web-hosting provider (the cheap unlimited tariffs are applicable too), and from a private cloud. The same principle can be applied on an external content distribution network (Amazon S3 / CloudFront) to serve the geodata with higher speed and reliability by automatically caching it geographically closer to your online visitors, while still paying only a few cents per transferred gigabyte.
  • Published: 2013
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
1:21:45 Stiftung Universität Hildesheim English 2015

Retrieval in the Web I

This lecture gives an overview on Information Retrieval. It explains why documents are ranked the way they are. The lecture explains the most relevant ways for content representation: Automatic indexing and manual indexing. For automatic indexing, the frequencey of word is of special relevance and their influence on the weighting of term are discussed. The most relevant models are introduced. The session on evaluation discusses new metrics like the Normalized Discounted Cumulative Gain. The session of information behavior provides a brief overview and explains the relation to IR. The session on optimization mainly introduces term expansion and fusion methods. The session on Web retrieval is concerned with the quality aspects and gives a basic insight to the PageRank algorithm.
  • Published: 2015
  • Publisher: Stiftung Universität Hildesheim
  • Language: English
1:18:34 Stiftung Universität Hildesheim English 2015

Representation II: Automatic Indexing

This lecture gives an overview on Information Retrieval. It explains why documents are ranked the way they are. The lecture explains the most relevant ways for content representation: Automatic indexing and manual indexing. For automatic indexing, the frequencey of word is of special relevance and their influence on the weighting of term are discussed. The most relevant models are introduced. The session on evaluation discusses new metrics like the Normalized Discounted Cumulative Gain. The session of information behavior provides a brief overview and explains the relation to IR. The session on optimization mainly introduces term expansion and fusion methods. The session on Web retrieval is concerned with the quality aspects and gives a basic insight to the PageRank algorithm.
  • Published: 2015
  • Publisher: Stiftung Universität Hildesheim
  • Language: English
1:19:08 Stiftung Universität Hildesheim English 2015

Information Behavior

This lecture gives an overview on Information Retrieval. It explains why documents are ranked the way they are. The lecture explains the most relevant ways for content representation: Automatic indexing and manual indexing. For automatic indexing, the frequencey of word is of special relevance and their influence on the weighting of term are discussed. The most relevant models are introduced. The session on evaluation discusses new metrics like the Normalized Discounted Cumulative Gain. The session of information behavior provides a brief overview and explains the relation to IR. The session on optimization mainly introduces term expansion and fusion methods. The session on Web retrieval is concerned with the quality aspects and gives a basic insight to the PageRank algorithm.
  • Published: 2015
  • Publisher: Stiftung Universität Hildesheim
  • Language: English
1:04:15 Stiftung Universität Hildesheim English 2015

Models I

This lecture gives an overview on Information Retrieval. It explains why documents are ranked the way they are. The lecture explains the most relevant ways for content representation: Automatic indexing and manual indexing. For automatic indexing, the frequencey of word is of special relevance and their influence on the weighting of term are discussed. The most relevant models are introduced. The session on evaluation discusses new metrics like the Normalized Discounted Cumulative Gain. The session of information behavior provides a brief overview and explains the relation to IR. The session on optimization mainly introduces term expansion and fusion methods. The session on Web retrieval is concerned with the quality aspects and gives a basic insight to the PageRank algorithm.
  • Published: 2015
  • Publisher: Stiftung Universität Hildesheim
  • Language: English
49:15 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2013

FOSS4G13 Keynote QGIS 2.0

  • Published: 2013
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
28:47 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2013

GIS Is Not Dead, It's Coming For You And It's Been Drinking JavaScript

This talk will discuss several super kick-ass ways that JavaScript and the web have re-shaped GIS and are changing how we visualize, analyze and share geospatial data with each other and the world. GIS is dead? No, it’s not, and it’s coming to find you and spatially kick your ass with a big bag of JavaScript. The world changes fast (hello, Internet). Yet, our industry (map making in one form or another) is stuck, and has generally shown itself to be slow to react to new ideas and paradigms that grow rapidly in other spaces. But there is still hope! GIS is coming back, and it’s being re-tooled with lots of shiny new software and geo-weapons. It’s going to make an assault on all of our previous notions of its old self. Of course this new and shiny GIS resembles its former self in many ways, it's also full many new ideas about how we experience maps and data on the web. As we witness a massive resurgence in JavaScript (hello D3 & node.js), and more emphasis placed on the web in general, we see that there are actually still large holes that should be filled the geo-spatial stack. New waves of JavaScript developers have, and will continue to fill these gaps. This talk will discuss several super kick-ass ways that JavaScript and the web have re-shaped GIS and are changing how we visualize, analyze and share geospatial data with each other and the world.
  • Published: 2013
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
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Version

AV-Portal 3.8.0 (dec2fe8b0ce2e718d55d6f23ab68f0b2424a1f3f)