Chaos Computer Club - archive feed

Erläutert werden Fallbeispiele aus Sicht des Produkt-Managers und Entwicklers, der die Entscheidung zwischen Integration in den Standard oder kundenspezifisches Customizing trifft. „Gescheitert am ERP-System“ titelt die Computerwoche und meint damit unter anderem die fehlgeschlagene Einführung von SAP bei Lidl. An dritter Stelle der Ursachenforschung wird unverhältnismäßiges Customizing genannt. D...

The closing session of the State of the Map 2022 conference. about this event: https://2022.stateofthemap.org/sessions/LX3EGF/

This proposal expands an understanding of humanitarian mapping from an ethnographic perspective, seeking to understand the complex mechanics behind this confluence of humanitarianism, technology, and crowdsourced labor. It seeks to scaffold a notion of the “open source mapping supply chain”, situating both humanitarian mapping and OpenStreetMap itself within a larger ecosystem of commercial, human...

Wikimedia Italia, the Italian OpenStreetMap Local Chapter of the OSM Foundation, presents its activities, online infrastructure developed to support OpenStreetMap in Italy and the Italian community. The talk will share the experience, situations and factors that have influenced agreat collaboration with the local contributors and institutions during the last years. The presentation will go through...

Die Zeiten des einsamen weißen Hackers im Keller seiner Eltern sind lange vorbei. Moderne Cyber-Angriffe werden von Staaten oder organisierten kriminellen Gruppen durchgeführt. Um gegen die schiere Anzahl solcher Angriff und Akteure an zu kommen ist viel Kreativität und Durchhaltevermögen gefragt. Man spricht klassischerweise davon, dass es eine Asymmetrie zwischen Hackern und Defendern gibt: die...

Vortrag über den neuen MySQL Operator für den Betrieb von MySQL in Kubernetes Umgebungen (mit Demo). Kubernetes ist eine standardisierte Umgebung für die Verwaltung von Arbeitslasten auf verschiedenen Maschinen, die sowohl für die Bereitstellung vor Ort als auch von allen großen Cloud-Anbietern unterstützt wird. Kubernetes funktioniert durch die Bereitstellung von containerisierten Arbeitslasten,...

Serverlandschaften sind ständigen Änderungen unterworfen. Umso wichtiger ist die Verwendung von Configuration-Managment-Tools zur Strukturierung der eigenen Infrastruktur. In Zeiten der Public, Hybrid oder sogar Multi Cloud-Umgebungen kann dies jedoch rasch zu einem ganzen ‚Zoo‘ an plattformspezifischen Management-Tools führen. Diese müssen einzeln gepflegt und gewartet werden, eine aufwändige und...

Because of access restrictions imposed during the Covid-19 pandemic, access to the physical laboratories of our university was no longer possible for students. Lectures requiring specific hardware which is only available to students in laboratories could no longer take place. Therefore, we developed a solution which allows remote access to hardware of our laboratory. The FLOSS application WorkAdve...

Data minimization, data economy and transparency are mandatory for getting GDPR conform. This talk is a discussion, what you could do on your database to increase your privacy level. Getting GDPR conform still is an issue for lots of developers. How you can implement some GDPR rules directly in your database? What kind of extra. columns does your SQL database need? How to control your SQL data? Ho...

Follow the OSM journey of the Médecins Sans Frontières (MSF) from a mapathon in Berlin in 2014 to creating and contributing geodata for numerous MSF operations through the Missing Maps project. This talk will be about how MSF uses OpenStreetMap internally and how we contribute through remote and field mapping. We will also share the lessons learned and reflect on the biggest challenges for MSF in...

Geo-literacy provides skills to read, interpret and use geospatial information, where little evidence exists regarding the potential and capacity of new education programs in advancing these skills. We present a citizen science project held in 13 high schools in Israel, where the students practice participatory mapping with OpenStreetMap to map features relevant to the navigation of visually impai...

OpenIndoor is an open source SaaS that uses OpenStreetMap indoor data to display a 3D graphical rendering of building interiors. The resulting map offers a gamified experience to meet different types of needs: indoor navigation, data representation, immersive tour etc. We will discuss how we use the available open data and the Maplibre engine to address these different use cases. about this event:...

The YouthMappers experience lends itself to explore interesting questions about the cultural and organizational aspects of data production and usage practices in OpenStreetMap, in order to improve them. First, this study aims to identify what are some of the qualitative and quantitative characteristics distinguishing the performance of YouthMappers as an academic-based community within OSM. Second...

This talk explores the effects of OpenStreetMapping on the mappers. These effects also infer that OSM mapping can be used as a tool for skill-building. OpenStreetMap, the crowdsourced geospatial database, currently has over eight million registered members [1]. This makes it one of the largest VGI projects with proven multifaceted use cases e.g. post-disaster response, combating female genital mut...

OpenStreetMap data represents a valuable source of information for public green areas in large urban centers and effectively measures the United Nations' Sustainable Development Goal 11.7. Our study provides a threefold contribution in this direction. First, we validate land-use-related tags in OpenStreetMap, through a comparison with satellite data from the European Urban Atlas. We then propose a...

Cities worldwide encourage urban active mobility by advocating policy and planning. Although contribution is evident, in practice, these actions disregard population parts that have mobility impairments. This research suggests using OpenStreetMap data in customized analytical models to assess the accessibility level of the urban environment for visually impaired pedestrians. Models results show th...

As part of a larger endeavour to make floor plan representations from building models available for indoor map and navigation services, we study the integration of IFC and OSM. # Introduction, background, motivation Official geo data is increasingly published not only in the form of 2D maps, but also in 3D, mainly as city models in CityGML. Usually the outer shell of buildings is captured in such...

Bei der Eisenbahn wird seit ungefähr 150 Jahren Sicherheit (=Safety) gelebt. Seit kurzem kommen diese komischen Nerds und wollen der Bahn ihre Sicherheit (=Security) beibringen. Das muss ja schiefgehen, oder? Ein hoffentlich sehr unterhaltsamer Überblick über die Bahn und die Herausforderungen der Informationssicherheit bei der Bahn Die Eisenbahn ist der faszinierendste Verkehrsträger der Welt. Gl...

This talk will cover topics related to providing relevant recommendations to users. We don’t aim to declare one recommendation method as the best but instead highlight different approaches to enriching recommendations by combining machine learning with graph databases. The methods we evaluate include: - Matrix Factorization with Graph Embeddings - Content-based TFIDF - Cosine Similarity with AQL a...

Infrastructure as Code, Continuous Integration und viele weitere Schlagworte sind in aller Leute Munde. Doch wie soll das Umgesetzt werden ? Der Vortrag gibt eine Übersicht wie Systemkonfiguration mit Puppet für grosse und kleine Umgebungen umgesetzt werden kann. Der Vortrag gibt einen Überblick und soll helfen Zusammenhänge zu verstehen. Der Fokus wird auf dem Aufbau und der Architektur einer Pup...

The CrypTool Team is in the middle of finishing the new edition of the CrypTool-Book at the moment. We added/updated many SageMath Examples, some of which will be shown and also provided for trying them out by yourself. The CrypTool Book is an Open-Source-Project containing texts from various authors about many topics of cryptography, via LaTeX all in one PDF, together with a lot of SageMath Examp...

How much effort does it take to build a Libre bicycle computer? I found out so you don't have to. Jazda.org is a project I started this year. It combines my 3 favorite things: bicycles, Rust the programming language, and tiny, networkless electronics. I will introduce you to the concept of a bike computer, and show why building one differs from building your typical gadget. about this event: https...

The lack of data on the distribution of the water resources, possess a great challenge for the water resource investment and AI/ML-enabled advancements in the water sector compared to all other sectors like heath. This paper describes the methodology for combining different water mapping schemas to create comprehensive multi-platform water infrastructure data and enhance rapid updates to support a...

Tips und Best-Practises für PostgreSQL Administration und Betrieb für Leute deren Job eigentlich ein anderer ist. PostgreSQL ist die fortschrittlichste Relationale Open Source Datenbank. Es bietet eine große Anzahl an Features und ist dabei für die meisten Workloads relativ einfach zu managen, vor allem wenn ein Managed Service verwendet wird. Wenn allerdings kein DBA vorhanden ist muss trotzdem j...

This talk shows how to enhance GitOps by putting observability and Service Level Objectives in the center of the deployment process, based on CNCF projects like Argo and Keptn. GitOps has arrived and shapes today’s way of delivering applications on cloud-native systems. Although GitOps controllers maintain the technical state of an application, there are additional – not necessarily technical – th...