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24:53 FOSSGIS e.V. German 2014

Geo mit Python

In vielen Bereichen hat sich Python als Allzweck-Programmiersprache etabliert -- dies gilt auch für den Geo-Bereich. Von der Plugin Entwicklung, über automatisiertes Geoprocessing bis zu eigenständigen GIS Anwendungen ist für viele Entwickler Python das Tool der Wahl. Hierfür ist neben der Effizienz der Sprache sicherlich auch die große Auswahl an bestehenden Geo-Komponenten verantwortlich. Durch die einfache Integrierbarkeit von C und C++ Bibliotheken hat der Entwickler zudem Zugriff auf bewährte Komponenten wie GEOS, GDAL/OGR und Proj4. Der Vortrag zeigt auf, was Python als Programmiersprache attraktiv macht und wie es einem im Arbeitsalltag mit Geodaten das Leben einfacher machen kann. Es werden eine Vielzahl an Tools und Bibliotheken vorgestellt die mit Python verwendet, oder durch Python erweitert werden können. An kurzen Beispielen wird aufgezeigt, wie mit Python z.B. Geodaten aus einem Shapefile geladen, in Python verarbeitet und anschließend in eine PostGIS Datenbank importiert werden können.
  • 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
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
1:22:20 Hasso Plattner Institut (HPI) German 2009

OWL und OWL-Semantik

Aufbauend auf die Beschreibungslogik SHOIN(D) wird die Ontologiebeschreibungssprache OWL DL eingeführt und deren Semantik erläutert.
  • 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
1:22:46 Hasso Plattner Institut (HPI) German 2009

RDF(S) Semantik

  • Published: 2009
  • Publisher: Hasso Plattner Institut (HPI)
  • Language: German
51:59 Hasso Plattner Institut (HPI) German 2009

XML und XML-Schema (Teil 2)

  • Published: 2009
  • 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
1:00:51 Hasso Plattner Institut (HPI) German 2011

03 Semantic Web Technologien - RDFS, RDFa und SPARQL

  • 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
34:24 Technische Informationsbibliothek (TIB) English 2013

The CNRS engagement in research infrastructures for digital humanities

The French CNRS (National Center for Scientific Research) is involved in almost all scientific fields, including Humanities and Social Sciences (HSS). Within the HSS, transition to digital humanities has been on the CNRS agenda for more than 10 years, leading in particular the creation of so-called very large-scale research infrastructures (TGIR). The presentation will provide a closer look at two of these TGIRs, TGE Adonis and CORPUS-IR, at related developments and the ways in which non-textual information is handled in these facilities. The goal of Adonis is to provide three types of services to the HSS communities: preservation, processing and dissemination of digital objects produced by the research labs. Adonis is working closely with CINES, center for long-term preservation in French higher education and research, and has a role of coordination of the Centers of digital resources, which have been created by CNRS since 2005. A special focus will be on the ISIDORE platform, a unique access point to various kinds of resources, using state-of-the-art data linking and enrichment techniques. It will finally be mentioned how non-textual information is also finding its way into the HAL central open archive run by CNRS.
  • Published: 2013
  • Publisher: Technische Informationsbibliothek (TIB)
  • Language: English
45:14 Technische Informationsbibliothek (TIB) English 2013

Context-driven semantic multimedia search

Video and multimedia data have become the predominant information on the World Wide Web. To cope with the ever growing amount of multimedia data on the web search engines have to open up the media content for search and retrieval. Automated multimedia analysis technologies such as, e.g. automated speech recognition, video OCR, or visual concept detection help to open up large scale multimedia repositories although the achieved analysis results often are error prone and unreliable. Semantic analysis considers the multiple (mostly text-based) metadata streams from automated analysis and constructs a semantic context to enable understanding the media content. Thus, semantic analysis enables the improvement of metadata reliability by evaluating the plausibility of the semantic assumptions. In addition, semantically annotated multimedia data enables semantic and exploratory search to open up new ways of accessing multimedia repositories.
  • 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
1:19:22 Hasso Plattner Institut (HPI) German 2009

Ontology Engineering

  • 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
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
1:25:22 Hasso Plattner Institut (HPI) German 2011

07 Semantic Web Technologien - RDF(S) Semantik

  • Published: 2011
  • Publisher: Hasso Plattner Institut (HPI)
  • Language: German
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
22:43 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2013

Using Spatial Business Intelligence For Asset Management

The maintenance of waterways is expensive. Optimization of reconstruction projects can save money and limit hindrance for the public. In this presentation I show how the implementation of Spatial OLAP can give better insight in the quality of the construction of waterway banks. By spatially overlaying inspection results with construction records, a better estimation can be made about the overall quality, potential danger and repair costs. Spatial OLAP is an excellent way to provide insight into the different variables involved in the planning proces of maintenance.
  • Published: 2013
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
04:04 Universität des Saarlandes Silent film 2012

The Wireless Bicycle Brake

Die drahtlose Fahrradbremse, ein Prototyp in besonderer Mission.
  • Published: 2012
  • Publisher: Universität des Saarlandes
  • Language: Silent film
1:24:21 Stiftung Universität Hildesheim English 2015

Representation I: Manual 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
1:21:45 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
59:57 Stiftung Universität Hildesheim English 2015

Optimization

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
25:37 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2013

Disconnected Geospatial Mobile & Open Source 5 Rules To Success?

We present the challenges of building a disconnected geospatial mobile solution and devise five simple rules for the success of your app. This paper will look at the following key issues: Rule 1 Data Storage. Streaming GI data requires good bandwidth, by implementing a caching mechanism the end-user will always have access to the data for a given area. Rule 2 - Use Open Source. Free and Open Source software for GIS has evolved significantly in recent years and in some cases faster than commercial alternatives. The mobile field is a bit different and few experts are using free and open source mobile GIS, despite the good tools that exist. Rule 3 - Use Open Standards. In combination with the use of Open Source products, Open Standards can help future proof the solution. Rule 4 - Simplify User Interfaces. The time of the stylus is gone and users now expect to use their finger for driving the application. Specific attention must be paid to designing simple and clear user interfaces. Rule 5 - Implement Non native Solutions. Should separate solutions be developed for IPhone and Android? Could the answer be instead to actually develop non native solutions reducing development and maintenance costs. Armed with these rules we will look at the challenges on the road ahead to implementing your GI Mobile solution.
  • Published: 2013
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
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Version

AV-Portal 3.8.0 (dec2fe8b0ce2e718d55d6f23ab68f0b2424a1f3f)