Presentation on "Open Source Possibilities" for geospatial to NSGIC 2011 annual conference in Boise, ID. Presented by Michael Terner, AppGeo and Learon Dalby, Sanborn.
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FIBEP WMIC 2015 - How Infomedia upgraded their closed-source search engine to...Charlie Hull
Infomedia upgraded their closed-source search engine to Apache Solr, an open-source platform. They worked with Flax to define their own query language, replace Verity with Flax Monitor which uses Apache Lucene, and replace Autonomy IDOL with Apache Solr. This provided benefits like faster indexing, a smarter monitoring solution, and control over their own query language. While challenging, the project was ultimately successful and allowed Infomedia to modernize their search capabilities.
The document summarizes the implementation of an open source search solution for a company with over 12 million documents. It discusses three plans for implementing access control to filter search results based on user permissions: 1) storing permissions with each document and filtering at search time, 2) checking permissions directly from the file server at search time, and 3) iterating user permissions at index time and storing readable documents as search terms to filter as booleans at search time. The third plan provided fast access control while only causing up to one day of indexing lag.
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Turning search upside down with powerful open source search softwareCharlie Hull
Turning Search Upside Down - how Flax works with media monitoring companies to build powerful and scalable 'inverted search' systems, applying hundreds of thousands of stored queries to millions of documents in real time. Features Apache Lucene/Solr as a replacement for Autonomy IDOL and our Luwak library as a replacement for Autonomy Verity.
FIBEP WMIC 2015 - How Infomedia upgraded their closed-source search engine to...Charlie Hull
Infomedia upgraded their closed-source search engine to Apache Solr, an open-source platform. They worked with Flax to define their own query language, replace Verity with Flax Monitor which uses Apache Lucene, and replace Autonomy IDOL with Apache Solr. This provided benefits like faster indexing, a smarter monitoring solution, and control over their own query language. While challenging, the project was ultimately successful and allowed Infomedia to modernize their search capabilities.
The document summarizes the implementation of an open source search solution for a company with over 12 million documents. It discusses three plans for implementing access control to filter search results based on user permissions: 1) storing permissions with each document and filtering at search time, 2) checking permissions directly from the file server at search time, and 3) iterating user permissions at index time and storing readable documents as search terms to filter as booleans at search time. The third plan provided fast access control while only causing up to one day of indexing lag.
This document discusses building news search systems using open source technologies. It describes indexing news content at high volumes, searching with filters and facets, and ensuring systems can scale as content grows. Examples given include the NLA Clipshare system with 20 million news stories and the Financial Times press cuttings search web service. Monitoring news also requires non-traditional search to reflect complex client needs.
The document describes Pelorus, a semantic web application platform developed by Clark & Parsia. Pelorus aims to ease the process of prototyping and assessing semantic web technologies for enterprises by providing an integrated development stack. It includes components like PelletServer for reasoning over ontologies, a semantic ETL toolkit to transform data into RDF, and Annex for publishing linked data. Pelorus handles steps from ontology development to application creation to reduce barriers to exploring semantic web approaches. The goal is to allow users to add their data and automatically generate a working application for data integration and analysis.
See some common myths, discover the various open source enterprise search packages available and see some case studies on how open source software has helped organisations build effective search.
The document outlines Michael Adcock's presentation at InfoCamp Seattle 2013 about using tools and structures to discover meaning in information architecture work. It provides examples of using a TiddlyWiki to understand a complex migration of client configuration files between systems, and explores other tools like Google Refine, Gephi, Gource, and D3 that can help with discovery. The presentation emphasizes the importance of experimentation and building tools to solve problems.
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EDINA is a national data center in the UK that delivers geospatial data and services using open standards and open source software. It provides access to collections like Digimap and OpenBoundaries through web mapping applications and data downloads. EDINA uses open standards like OGC and open source software from projects in OSGeo to build robust and interoperable systems while reducing costs and increasing flexibility.
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How do volunteer open-source projects create and maintain so many
compelling, competitive products? What is the Open Source Secret
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made.
In this session, you will learn
* Why open source matters;
* How open source development works at the ASF;
* What makes open source projects successful.
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Basics of contributing to an open source project - from the first Linux Learners Day at LinuxCon 2011
http://events.linuxfoundation.org/events/linuxcon/student-program
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Extend your Oracle Forms Application with Chatbots. A Chat Interface to your back-office system, for faster and efficient transactions.
Transforming the User Experience, without having to touch a single line of code!
For more information on AuraPlayer and on Oracle Forms:
Website: http://www.auraplayer.com/
Blog: http://oracleformsinfo.com/
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24. Kind of like an open source SDE/Oracle SpatialBrilliant person and excellent public speaker who puts it out there in plain terms Several of the following slides were presented at the recent FOSS4G conference, and are used with permission
25. What is open source software? Managed as a project with a team of contributors Source code of software is freely available Software license often allows free deployment Slides from Paul Ramsay, used with permission.
28. Open source and proprietary software companies are similar, but different Open Source Corp Proprietary Corp They both need to serve customers and make money The intellectual property comes from different places Slides from Paul Ramsay, used with permission.
29. There are now companies that provide support and services for geospatial OSS OpenGeo is following the “Red Hat model” Insurance: That if something is broken, some entity will help get it fixed; you can obtain support Assurance: That there is knowledge and expertise to assist you with deploying and solving problems with these tools Slides from Paul Ramsay, used with permission.
30. Many commercial companies employ open source Google Linux in its web farms Amazon The Xen virtual machine environment 85 of 135 third-party libraries are OSS Under 18 different OSS licenses Slides from Paul Ramsay, used with permission.
32. Opportunities Release cycles New features can be added more quickly Learon’s/DoD’s point: “Agility/Flexibility/Faster Delivery” You can pay for a feature Incremental improvements through releases 10.0 9.0 8.0 Versions 7.0 6.0
33. Challenges Meaningful quote at the conference: “Free is the least important word in FOSS4G” (FOSS4G = Free and Open Source Software for Geospatial) Free does not mean that there are no costs You can/should pay for support There are costs in training staff Etc.
34. Challenges Picking your tools It’s a large marketplace Server, desktop, DB, client framework, caching, ETL, etc. Many projects Many companies What do you need? How does it all fit together?
35. So what’s going on with FOSS4G in the NSGIC community? Massachusetts, Oklahoma and New Jersey Any others? Three questions What are you doing? Why did you do it? Any advice to offer? PS: None of these states has abandoned Esri
36. Massachusetts What are you doing? Powers OGC compliant web services Including consumable public services consistent with state’s overall services oriented architecture Consumed by wide variety of public and agency applications Including Oliver & Morris, public facing viewers
37. Massachusetts Why did you do it? Adopted OGC API over 10 years ago In 2001, ArcIMS was not up to task of affordably publishing 100+ OGC compliant map services Have viewed OSS as a supplement, not a replacement for Esri technology
38. Massachusetts Any advice to offer? Support exists, but finding it and becoming familiar with the new model takes some time Ensure you have access to adequate technical support via consultants and/or staff for configuration and deployment
39. Oklahoma What are you doing? Powers the OKMaps clearinghouse Catalog, data viewer, consumable OGC web services
40. Oklahoma Why did you do it? Reduce licensing costs Original project was grant funded, no budget for maintenance Ability to “clone this clearinghouse” and provide to counties so they can help feed the state system Not yet, however
41. Oklahoma Any advice to offer? “Although one may avoid licensing costs, there are still significant costs” Need for staff expertise Good professional partner OSS is under constant development, important to stay current on releases
42. New Jersey What are you doing? OGC web services (WMS, WFS) to power a variety of agency applications & Publish data to The National Map Web application front-end is OpenLayers; backend is EsriArcGIS Server REST/cached base map OGC compliant orthophoto services Via a LizardTech Express Server
43. New Jersey Why did you do it? Fill in some gaps in the Esri product offerings Robust OGC support JavaScript development before release of REST API Supplement existing Esri infrastructure Comfortable with a heterogeneous environment
44. New Jersey Any advice to offer? When you venture into OSS, understand the release cycle and model Daily builds are available and sometimes have something you want But can be less stable
45. Conclusion It’s continuing to mature Quality of tools Business ecosystem It’s adding value To both government and business We’re likely to be seeing more of it, not less