From: Maxious Date: Wed, 01 May 2013 23:17:16 +0000 Subject: add school of data tutorials X-Git-Url: http://maxious.lambdacomplex.org/git/?p=tools.git&a=commitdiff&h=91affd16551f6fde8e19b0084f9e69bf6609cb3f --- add school of data tutorials --- --- a/README.md +++ b/README.md @@ -1,64 +1,4 @@ -# [HTML5 Boilerplate](http://html5boilerplate.com) +# GovHack toolkit -HTML5 Boilerplate is a professional front-end template for building fast, -robust, and adaptable web apps or sites. +Collection of resources for data analysis and visualisation -This project is the product of many years of iterative development and combined -community knowledge. It does not impose a specific development philosophy or -framework, so you're free to architect your code in the way that you want. - -* Source: [https://github.com/h5bp/html5-boilerplate](https://github.com/h5bp/html5-boilerplate) -* Homepage: [http://html5boilerplate.com](http://html5boilerplate.com) -* Twitter: [@h5bp](http://twitter.com/h5bp) - - -## Quick start - -Choose one of the following options: - -1. Download the latest stable release from - [html5boilerplate.com](http://html5boilerplate.com/) or a custom build from - [Initializr](http://www.initializr.com). -2. Clone the git repo — `git clone - https://github.com/h5bp/html5-boilerplate.git` - and checkout the tagged - release you'd like to use. - - -## Features - -* HTML5 ready. Use the new elements with confidence. -* Cross-browser compatible (Chrome, Opera, Safari, Firefox 3.6+, IE6+). -* Designed with progressive enhancement in mind. -* Includes [Normalize.css](http://necolas.github.com/normalize.css/) for CSS - normalizations and common bug fixes. -* The latest [jQuery](http://jquery.com/) via CDN, with a local fallback. -* The latest [Modernizr](http://modernizr.com/) build for feature detection. -* IE-specific classes for easier cross-browser control. -* Placeholder CSS Media Queries. -* Useful CSS helpers. -* Default print CSS, performance optimized. -* Protection against any stray `console.log` causing JavaScript errors in - IE6/7. -* An optimized Google Analytics snippet. -* Apache server caching, compression, and other configuration defaults for - Grade-A performance. -* Cross-domain Ajax and Flash. -* "Delete-key friendly." Easy to strip out parts you don't need. -* Extensive inline and accompanying documentation. - - -## Documentation - -Take a look at the [documentation table of -contents](/h5bp/html5-boilerplate/blob/master/doc/README.md). This -documentation is bundled with the project, which makes it readily available for -offline reading and provides a useful starting point for any documentation -you want to write about your project. - - -## Contributing - -Anyone and everyone is welcome to -[contribute](/h5bp/html5-boilerplate/blob/master/doc/contribute.md). Hundreds -of developers have helped make the HTML5 Boilerplate what it is today. - --- a/index.md +++ b/index.md @@ -18,7 +18,7 @@ The key thing here is that your source material demonstrates to the judges that some of the end result was your own work and that it is possible for another person to replicate that work. -# General References {#general-data-hacking-and-programming-references} +# General References ## The basics of being a data scientist @@ -58,7 +58,7 @@ -# Developer Tools For Your Computer {#developer-tools-for-your-computer} +# Developer Tools For Your Computer No matter what kind of application you have for the data, there are many tools you can use to better collaborate and manage your project. ### Source Control @@ -66,11 +66,8 @@ [![](img/Screenshot-at-2012-04-29-172132-300x235.png "Git Screenshot")](http://progit.org/book/) -[tutorials on git](http://progit.org/book/) and -[GUIs to help you](http://code.google.com/p/tortoisegit/) - -[manual for Subversion](http://svnbook.red-bean.com/) -and a [similar GUI for Subversion](http://tortoisesvn.net/) +There are [tutorials on git](http://progit.org/book/) and GUIs to help you like [TortoiseGit for Windows](http://code.google.com/p/tortoisegit/) and [Atlassian SourceTree for Windows and OSX](http://sourcetreeapp.com/) +There is also a [manual for Subversion](http://svnbook.red-bean.com/) and a [similar GUI for Subversion](http://tortoisesvn.net/) ### Task Tracking @@ -79,7 +76,10 @@ [Trello](https://trello.com/) and [Workflowy](https://workflowy.com/) are free, lightweight project management tools suitable for a rapid project! -## Hosted Developer Tools {#hosted-developer-tools} +## Virtual Servers +Many free services to try out virtual/cloud servers before scaling up: https://www.chunkhost.com/ or heroku or https://www.appfog.com/pricing/ + +## Hosted Developer Tools Can get many tools (source control, issue tracking) combined into one service cloud hosted so there's no setup required. @@ -101,10 +101,10 @@ # Applications of data hacking -## API Development {#api-development} - - -So an API isn't just an XML file ![;)](http://www.govhack.org/wp-includes/images/smilies/icon_wink.gif) +## API Development + + +So an API isn't just an XML file! A good web based data API: @@ -123,17 +123,13 @@ HowTo.gov has a bunch of api resources about choosing SOAP vs. REST etc. http://www.howto.gov/mobile/apis-in-government API documentation is important too! Traditionally for SOAP APIs, you use WSDL but for REST try [Swagger](http://swagger.wordnik.com/) or [iodocs](https://github.com/mashery/iodocs) -Many web app frameworks can generate the documentation for you. For example Symfony for PHP http://symfony.com/ https://github.com/FriendsOfSymfony/FOSRestBundle http://williamdurand.fr/2012/08/02/rest-apis-with-symfony2-the-right-way/ https://github.com/nelmio/NelmioApiDocBundle +Many web app frameworks can generate the documentation for you. For example Symfony for PHP http://symfony.com/ https://github.com/FriendsOfSymfony/FOSRestBundle http://williamdurand.fr/2012/08/02/rest-apis-with-symfony2-the-right-way/ https://github.com/nelmio/NelmioApiDocBundle https://github.com/liip/LiipHelloBundle Or for Ruby on Rails there is is https://github.com/elc/rapi_doc https://github.com/Pajk/apipie-rails - better apis https://github.com/liip/LiipHelloBundle - - http://amberonrails.com/building-stripes-api/ - -example WeatherTree weather API - - -## Infographics and Data Visualisation {#data-visualisation} +For example [Stripe's API](http://amberonrails.com/building-stripes-api/) or previous GovHack entrant [WeatheredOak](http://www.govhack.org/2012/06/02/weatheredoak/) + + +## Infographics and Data Visualisation Infographics try to contextualise charts and graphs to tell a story. Data vis builds on this to find new ways to design insight. @@ -146,8 +142,8 @@ - http://selection.datavisualization.ch/ data viz tools catalog Also check out [http://thejit.org](http://thejit.org/) & [http://www.senchalabs.org/philogl/](http://www.senchalabs.org/philogl/) (contributed by Matt Adcock) -A good infographic should use visual art concepts and [good color schemes](http://www.r-bloggers.com/the-paul-tol-21-color-salute/) -For more information on the theory of data visualisation check out the (Stanford CS448B notes)[https://graphics.stanford.edu/wikis/cs448b-12-fall/] +A good infographic should use visual art concepts and [good color schemes](http://www.r-bloggers.com/the-paul-tol-21-color-salute/). See the [data visualisation guidelines from the international journalism festival](http://schoolofdata.org/2013/04/26/data-visualization-guidelines-by-gregor-aisch-international-journalism-festival/) +For more information on the theory of data visualisation check out the [Stanford CS448B notes](https://graphics.stanford.edu/wikis/cs448b-12-fall/) or [The Ultimate Collection of Data Storytelling Resources](http://www.juiceanalytics.com/writing/the-ultimate-collection-of-data-storytelling-resources/) Some examples of data visualisation can be seen on [the Sunlight Foundation tumblr](http://sunfoundation.tumblr.com/) or at the GovHack alumn [The Open Budget](http://www/.theopenbudget.org) @@ -155,11 +151,10 @@ ## Web Applications With the rise of HTML5 technologies it is easier than ever to make a web application for engaging use of data. - - - css framework like bootstrap or zurb foundation -- css gauges http://www.larentis.eu/donuts/ -- bootstrap themes, web fonts, css sprites, icon fonts - - http://designmodo.com/flat-free/ http://designmodo.github.com/Flat-UI/ +It's easy to quickly make a good looking and accessible webpage if you use a CSS framework like Bootstrap or Zurb Foundation. +There are a variety of bootstrap themes like [Flat-UI](http://designmodo.com/flat-free/) + +Check out the visualisation tools listed in the data sections for web application tools like these [CSS Dashboard gauges](http://www.larentis.eu/donuts/) ### Examples @@ -200,14 +195,14 @@ ## Mobile -Frameworks, http://www.sencha.com/products/touch http://phonegap.com/ http://cordova.apache.org/ - -html5 jquery mobile like directory.gov.au +If you want to get stared quickly with mobile application development, it's worth considering cross platform frameworks like http://www.sencha.com/products/touch http://phonegap.com/ http://cordova.apache.org/ + +For a simple mobile app, a web application with a framewrok like jQuery Mobile can work quite well (as used on directory.gov.au) For data visualisation, there are a variety of graph widgets http://code.google.com/p/afreechart/ http://code.google.com/p/snowdon/ http://code.google.com/p/chartdroid/ http://androidplot.com/ http://code.google.com/p/achartengine/ - -Backend frameworks http://helios.io/ https://www.parse.com/ +You may wish to consider backend frameworks like http://helios.io/ or https://www.parse.com/ + ### Examples Bureau of Meteorology Water Storage App http://icelab.com.au/work/bureau-of-meteorology/ @@ -215,14 +210,13 @@ NZ Gov budget http://www.treasury.govt.nz/budget/app -# Geographical Data Tools {#geographical-data-tools} +# Geographical Data Tools Check out the [GeoRabble Boundary Mapper's Cookbook](http://georabble.org/2012/05/31/the-boundary-mappers-cookbook/) to see how you can tie all these things together! -GeoDjango TileMill ## Key datasets -base layers like agri http://agri.openstreetmap.org/, http://irs.gis-lab.info/ wms or http://www.gdal.org/frmt_wms_openstreetmap_tms.xml +There are a variety of base layers like AGRI aerial imagery of Australia http://agri.openstreetmap.org/ or WMS services like http://irs.gis-lab.info/ wms or http://www.gdal.org/frmt_wms_openstreetmap_tms.xml ASGS from ABS including suburbs/postcodes andrewharvey4.wordpress.com postgis/asgs tutorial You can also get KML layers for various statistical measures on the ABS TableBuilder tool. @@ -230,13 +224,14 @@ ## Wrangling ### Converting -There are many spatial data formats and often the one your tool requires is not the one the dataset is provided in -Online - - http://converter.mygeodata.eu/vector kml exporter for shp -or locally using GDAL (better for many megabyte datasets) +There are many spatial data formats and often the one your tool requires is not the one the dataset is provided in. +You can convert spatial datasets online with http://converter.mygeodata.eu/vector or locally using GDAL (which better for >10 megabyte datasets) ### Geocoding -Google Maps APIs allow you to convert an address to map co-ordinates (geocoding) but you must display on a Google Map. The easiest way to do is with a Google Spreadsheet/Fusion Table http://williamparry.blogspot.com.au/2011/04/putting-data-into-google-fusion-tables.htm http://support.google.com/fusiontables/answer/1012281?hl=en&ref_topic=2592806 + +See this [introduction to geocoding](http://schoolofdata.org/2013/02/19/geocoding-part-i-introduction-to-geocoding/) + +Google Maps APIs allow you to convert an address to map co-ordinates (geocoding) but you must display on a Google Map. The easiest way to do is with a Google Spreadsheet/Fusion Table http://schoolofdata.org/2013/02/19/geocoding-part-ii-geocoding-data-in-a-google-docs-spreadsheet/ If you need geocoding for more than display (working out the distance between points etc) or you don't want to use Google Maps, Cloudmade offers free OpenStreetMap based geocoding http://developers.cloudmade.com/projects/show/geocoding-http-api @@ -251,9 +246,12 @@ [![](img/How-to-participate-in-GovHack_html_m50afbe88-300x160.jpg "QGIS Screenshot")](img/How-to-participate-in-GovHack_html_m50afbe88.jpg)QGIS is a graphical desktop application that allows viewing and editing of geospatial data. Some good base maps are available by adding the WMS layer/server [http://irs.gis-lab.info/](http://irs.gis-lab.info/) +See this [Creating a Map in QGIS tutorial](http://schoolofdata.org/2013/04/27/creating-a-map-using-qgis/) + ## Visualisation ### Layar and other augmented reality tools +[Layar](http://www.layar.com/) provides a platform for exploring a dataset by travelling to the actual locations of the data and looking through a smartphone. Custom markers (2D or 3D) seem to float in the air and can be clicked on for more information. You can even trigger an event like playing music when within a certain range of a location. ### Google Fusion Tables/ChartsBin/[OpenHeatMap](http://www.openheatmap.com/) @@ -263,9 +261,8 @@ ### [Cartographer.js](http://cartographer.visualmotive.com/) -[![](img/cartographerjs-300x187.png "cartographerjs screenshot")](img/cartographerjs.png)Input data as JSON and maps are produced. -See also d3 maps. - - http://bost.ocks.org/mike/map/ +[![](img/cartographerjs-300x187.png "cartographerjs screenshot")](img/cartographerjs.png)Input data as JSON and interactive maps are produced. +You can also try d3 maps: http://bost.ocks.org/mike/map/ ### OpenLayers/Google Maps/[Leaflet](http://leaflet.cloudmade.com/) @@ -273,61 +270,84 @@ [![](img/How-to-participate-in-GovHack_html_512fcbe1-300x173.jpg "OpenLayers Screenshot")](img/How-to-participate-in-GovHack_html_512fcbe1.jpg)Display points and different layers. Leaflet is the easiest to use if you just want to show points with popups when clicked on. There are wrappers for Google maps like http://hpneo.github.com/gmaps/examples.html and Mapstraction that can make it easier to use too. +If you need to customise the base map, try TileMill. See the [THE INSANELY ILLUSTRATED GUIDE TO YOUR FIRST DATA-DRIVEN TILEMILL MAP](http://dataforradicals.com/the-insanely-illustrated-guide-to-your-first-tile-mill-map/) + ### NASA World Wind/Google Earth [![](img/How-to-participate-in-GovHack_html_4dda24a4-300x261.jpg "WorldWind screenshot")](img/How-to-participate-in-GovHack_html_4dda24a4.jpg)Google Earth provides 3\. viewing of KML/GML files which represent points and shapes, both through a desktop application and a web plugin. These can be extended with interactive features that allow you to view by timeline or have animated tours between different points. You can also develop and customise your own viewer with the open source [NASA World Wind toolkit.](http://goworldwind.org/demos/) ### -# Tabular Data Tools {#tabular-data-tools} +# Tabular Data Tools ## Wrangling -Converting formats json/xml/csv etc. - - http://shancarter.com/data_converter/ - - +### data access +#### Relational IO platform + +- Datasets from the new data.gov.au CKAN repository +- Datasets from data.act.gov.au Socrata repository +- Access to NLAs Trove API +- Select data from data.nsw.gov.au (csv based) +- Datasets from data.vic.gov.au (csv based) +- Datasets from data.qld.gov.au (csv based) +- Access to web services such as Flickr image search, Twitter Search API, Bing search API, Google Search API, Google geocoding, Textrazor language analysis. + +Teams will get their own read-only SQL-powered workspace that will give them access to all the above datasets / services allowing them to join and mashup data quickly and easily. + + +### conversion +Converting between formats like json/xml or csv can be done online with http://shancarter.com/data_converter/ + +### correction Tabular data may have duplicate entries or incorrect formats (varying ways to enter dates/phonenumbers etc.). There are tools to quickly fix common problems [DataWrangler](http://vis.stanford.edu/wrangler/)/[Google Refine](http://code.google.com/p/google-refine/) [![](img/google_refine_interface.png "google_refine_interface")](img/google_refine_interface.png)Clean up duplicate or inconsistent data entries. -Can also use general purpose tools; grep/awk/sed -regex http://www.regexper.com/ http://www.debuggex.com/?re=&str= +You can also use general purpose file manipulation tools like grep/awk/sed. These work best when you instruct them what search/change you need using Regular Expressions (RegEx) which you can learn more about at http://www.regexper.com/ and http://www.debuggex.com/?re=&str= ## Analysis ### Excel / Google Docs -Great basic analysis and viewing. Older versions can be limited to 6500\. or so rows. Eg [http://www.tcij.org/training-material/car/data-mining/3474](http://www.tcij.org/training-material/car/data-mining/3474) - -http://training.sunlightfoundation.com/module/data-visualizations-google-docs/ +Great basic analysis and viewing but older versions can be limited to 6500 rows. Eg [http://www.tcij.org/training-material/car/data-mining/3474](http://www.tcij.org/training-material/car/data-mining/3474) or [http://training.sunlightfoundation.com/module/data-visualizations-google-docs/](http://training.sunlightfoundation.com/module/data-visualizations-google-docs/) + + See this [Excel Data Journalism tutorial](http://schoolofdata.org/2013/04/24/using-excel-to-do-precision-journalism-an-update-from-the-school-of-data-journalism-in-perugia/) ### PostgreSQL/MySQL [![](img/How-to-participate-in-GovHack_html_209ee972.jpg "SQL screenshot")](img/How-to-participate-in-GovHack_html_209ee972.jpg)Next step up, large datasets can be manipulated/extracted efficiently for example [http://www.postgresql.org/docs/8.4/static/tutorial-window.html](http://www.postgresql.org/docs/8.4/static/tutorial-window.html) , no built-in data visualisation though. +See this [SQL for lightweight data analysis tutorial](http://schoolofdata.org/2013/03/26/using-sql-for-lightweight-data-analysis/) + ### R Statistical Language -[![](img/rstudio-windows-300x249.png "rstudio-windows")](img/rstudio-windows.png)Advanced data analysis, can find and visualise trends in large datasets. Some reference resources to learn the language [http://cran.r-project.org/doc/manuals/R-intro.html ](http://cran.r-project.org/doc/manuals/R-intro.html)There are also some addons that provide graphical interfaces that make it easier to use such as Rattle [http://rattle.togaware.com/](http://rattle.togaware.com/) , RStudio [http://rstudio.org/](http://rstudio.org/) or Deducer [http://www.deducer.org/pmwiki/pmwiki.php?n=Main.DeducerManual](http://www.deducer.org/pmwiki/pmwiki.php?n=Main.DeducerManual) - - - http://blog.yhathq.com/posts/10-R-packages-I-wish-I-knew-about-earlier.html - - excel -> R/rattle/ deducer? http://www.r-bloggers.com/updates-to-the-deducer-family-of-packages/ - - http://www.twotorials.com/ for R - - http://www.r-bloggers.com/gradient-word-clouds/ http://www.rstudio.com/shiny/ http://blog.ouseful.info/2012/11/28/quick-shiny-demo-exploring-nhs-winter-sit-rep-data/ https://github.com/timelyportfolio/shiny-d3-plot https://github.com/trestletech/shiny-sandbox/tree/master/grn - - http://www.r-bloggers.com/video-simpler-tricks-and-tools-help-debugging-git-latex-and-workflow-with-r-by-prof-rob-hyndman/ - - http://yihui.name/knitr/ makes reports including google widgets/charts/maps via http://www.r-bloggers.com/googlevis-0-3-2-is-released-better-integration-with-knitr/ - - http://chartsnthings.tumblr.com/post/36978271916/r-tutorial-simple-charts http://flowingdata.com/2012/12/17/getting-started-with-charts-in-r/ - - http://www.r-bloggers.com/to-plot-them-is-my-real-test/ - http://blog.revolutionanalytics.com/2013/04/visualize-large-data-sets-with-the-bigvis-package.html 10 Million Points in 5 seconds. +[![](img/rstudio-windows-300x249.png "rstudio-windows")](img/rstudio-windows.png) +R provides a platform for advanced data analysis which can find and visualise trends even in large datasets. Some reference resources to learn the language [http://cran.r-project.org/doc/manuals/R-intro.html ](http://cran.r-project.org/doc/manuals/R-intro.html)There are also some addons that provide graphical interfaces that make it easier to use such as Rattle [http://rattle.togaware.com/](http://rattle.togaware.com/) , RStudio [http://rstudio.org/](http://rstudio.org/) or Deducer [http://www.deducer.org/pmwiki/pmwiki.php?n=Main.DeducerManual](http://www.deducer.org/pmwiki/pmwiki.php?n=Main.DeducerManual) + + R's value lies in the wide array of libraries and addons you can use. For example [BigVis](http://blog.revolutionanalytics.com/2013/04/visualize-large-data-sets-with-the-bigvis-package.html) lets you visualise 10 Million data points in 5 seconds on an ordinary computer. + Be sure to checkout the list of ["10 R packages I wish I knew about earlier"](http://blog.yhathq.com/puosts/10-R-packages-I-wish-I-knew-about-earlier.html) + +ggplot2 is the typical graphical output of R and is very powerful. See these tutorials for instructions: http://chartsnthings.tumblr.com/post/36978271916/r-tutorial-simple-charts http://flowingdata.com/2012/12/17/getting-started-with-charts-in-r/ +You can do some very creative plotting for example [putting pictures of Pokemon where their power level is on an X/Y axis](http://www.r-bloggers.com/to-plot-them-is-my-real-test/) or [a 2D plot with histograms for each dimension](http://www.r-bloggers.com/2d-plot-with-histograms-for-each-dimension-2013-edition/) + +To share your analysis with the world you can use [KnittR](http://yihui.name/knitr/) which to make reports. These can include google widgets/charts/maps with the [googlevis](http://www.r-bloggers.com/googlevis-0-3-2-is-released-better-integration-with-knitr/) package. + + For advanced interactive visualisation you can use [Shiny](http://www.rstudio.com/shiny/) which allows visitors to you page to adjust the R charts. + Examples of Shiny use include: + http://blog.ouseful.info/2012/11/28/quick-shiny-demo-exploring-nhs-winter-sit-rep-data/ https://github.com/timelyportfolio/shiny-d3-plot https://github.com/trestletech/shiny-sandbox/tree/master/grn + + ## Visualisation ### [Tableau Desktop](http://www.tableausoftware.com/) Create visualisations from various data formats by dragging and dropping. Free trial available on website. [![](img/Tableau-Screenshot-300x190.jpg "Tableau Screenshot")](img/Tableau-Screenshot.jpg) + +See this [Tableau Desktop Tutorial](http://schoolofdata.org/2013/04/27/ddjschool-tutorial-analysing-datasets-with-tableau-public/) ### Web page (Javascript) graphs [Flotr2](http://www.humblesoftware.com/flotr2/)/[Google Chart Tools](https://developers.google.com/chart/) @@ -337,39 +357,29 @@ ### D3.js (Data-Driven Documents) [![](img/How-to-participate-in-GovHack_html_m90d8020-300x277.jpg "d3 screenshot")](img/How-to-participate-in-GovHack_html_m90d8020.jpg)Javascript visualisations that are more interactive or intricate than charts. Can be hard to learn but there are examples and easier to use premade visualisations such as [word clouds](http://www.jasondavies.com/wordcloud/), [realtime filtering of barcharts](http://square.github.com/crossfilter/), or [bubble trees for comparing amount sizes](https://github.com/okfn/bubbletree). -d3 - - http://datadrivenjournalism.net/resources/data_driven_documents_defined - - http://www.benmcmahen.com/blog/posts/50eb57d55a94d35262000001 d3 svg - - d3 tools and tutorial http://enjalot.com/ http://news.ycombinator.com/item?id=4608440 - - Why d3 is the way it is and how to make charts http://bost.ocks.org/mike/chart/ - - how to make an xkcd chart http://bl.ocks.org/3914862 - -### Processing.js +See these tutorials to get started: http://datadrivenjournalism.net/resources/data_driven_documents_defined http://bost.ocks.org/mike/chart/ + # Unstructured (Text) Data Tools Most of the world's data isn't structured because it is contained in documents (webpages, tweets etc.). Sometimes it is possible to structure it, sometimes there are tools that are better suited it unstructured data. ## Wrangling For extracting data from webpages, checkout Scraperwiki pytemplate scrapy -PDFs - http://source.mozillaopennews.org/en-US/articles/introducing-tabula/ for text PDFs or http://www.reporterslab.org/dochive/ for imafges +PDFs - http://source.mozillaopennews.org/en-US/articles/introducing-tabula/ for text PDFs or http://www.reporterslab.org/dochive/ for images (common in scanned document PDFs) If there is no way to form a table structure to be able to apply tabular data techniques , you need a more sophisticated analysis as detailed below. ## Analysing -Natural Language Processing - - opennlp/nltk / https://github.com/clips/pattern +Natural Language Processing libraries like OpenNLP for Java or NLTK / [Pattern](https://github.com/clips/pattern) for Python allow you to extract information from text. +One of the most useful techniques found in these libraries is Named entity recognition which extracts the subjects named in a piece of text. -A search engine just for your dataset can also help - - lucene/solr +A search engine just for your dataset can also help. Tools like Apache Lucene/Solr or ElasticSearch can help you index and search large datasets in new ways. -For light weight analysis, try R or Ruby - - http://www.r-bloggers.com/simple-text-mining-with-r/ - - - http://blog.josephwilk.net/ruby/latent-semantic-analysis-in-ruby.html similar terms usually found together +For light weight analysis, try R or Ruby: http://www.r-bloggers.com/simple-text-mining-with-r/ http://blog.josephwilk.net/ruby/latent-semantic-analysis-in-ruby.html ## Visualising -Make word trees of blocks of text, webpages or twitter account and share them http://www.jasondavies.com/wordtree/ +You can make word trees of blocks of text, webpages or twitter account and share them http://www.jasondavies.com/wordtree/ "Overview automatically sorts thousands of documents into topics and sub-topics, by reading the full text of each one." Simply make a CSV file with two columns, id and text. 10,000 documents is a good limit for the current state of the system. https://www.overviewproject.org/ @@ -377,12 +387,8 @@ -# Graph (relationships and networks) Data Tools {#graph-relationships-and-networks-data-tools} +# Graph (relationships and networks) Data Tools Graph data can be very valuable for finding communities, hubs and connections between entities (the 6 degrees of separation). This is through the techniques of Social Network Analysis. - - http://www.slideshare.net/OReillyStrata/visualizing-networks-beyond-the-hairball - - http://blog.sciencenet.cn/blog-554179-622011.html SNA tools catalog - - https://github.com/jacomyal/osdc2012-sigmajs-demo sigmajs filtering/searching - ## Analysis @@ -394,7 +400,7 @@ ### Graph Databases [![](img/webadmin-data-300x127.png "Neo4\. web admin screenshot")](img/webadmin-data.png)Help understand relationships - how is X connected to Y and via what other entities they both are connected to. -Imports and exports can be done by [writing a java program](http://www.slideshare.net/maxdemarzi/etl-into-neo4j) or [spreadsheet](http://blog.neo4j.org/2013/03/importing-data-into-neo4j-spreadsheet.html) +Imports and exports can be done by [writing a java program](http://www.slideshare.net/maxdemarzi/etl-into-neo4j) or [spreadsheet](http://blog.neo4j.org/2013/03/importing-data-into-neo4j-spreadsheet.html) (for example, [Gmail contacts](http://blog.neo4j.org/2013/04/gmail-email-analysis-with-neo4j-and_24.html)). The fastest way to import data into Neo4j is the [REST batch import API](http://docs.neo4j.org/chunked/milestone/rest-api-batch-ops.html) There are other graph databases worth considering like [OrientDB](http://www.orientdb.org/) or [Titan](http://thinkaurelius.github.com/titan/) Major graph databases like these can be accessed using a common syntax called Gremlin or by writing a simple Java/Python/Ruby application. Queries can be tested in the built in data browser. @@ -411,13 +417,22 @@ ## Visualisation + +Proper visualisation of networks can be hard as described in this presentation [Visualising Networks: Beyond the Hairball](http://www.slideshare.net/OReillyStrata/visualizing-networks-beyond-the-hairball) + ### Tree/Hierarchy visualisation -Sometimes what you actually have is a tree/hierarchy with no interconnections. In these cases, it's better to use a Tree visualisation. - http://www.randelshofer.ch/treeviz/ http://thejit.org/demos/ http://mbostock.github.com/protovis/ex/treemap.html http://blog.pixelingene.com/2011/07/building-a-tree-diagram-in-d3-js/d3 for Trees and Hierarchies - http://mbostock.github.com/d3/ex/pack.html http://mbostock.github.com/d3/ex/tree.html +Sometimes when you analyse a network what you actually have is a tree/hierarchy with no interconnections. +In these cases, it's faster and more visually effective to use a Tree visualisation. +You can run [TreeViz](http://www.randelshofer.ch/treeviz/) locally or use [d3 on a website](http://bl.ocks.org/mbostock/4063550), [step by step instructions for creating tree data for d3](http://blog.pixelingene.com/2011/07/building-a-tree-diagram-in-d3-js/) +d3 also includes [treemaps - bubbles inside bubbles](http://bl.ocks.org/mbostock/4063530) + +### Flow Visualisations +Sometimes it's more about the magnitude (money? amount of communication?) of the connections between nodes. +A sankey diagram can easily visualise this http://bost.ocks.org/mike/sankey/ ### NodeXL for Microsoft Excel - - http://nodexl.codeplex.com/ network graphs for excel +[![](img/ExcelWindow.png "NodeXL Screenshot")](img/ExcelWindow.png) + [NodeXL](http://nodexl.codeplex.com/) allows you to visualise networks/graphs quickly inside Excel. ### [Graphviz](http://www.graphviz.org/) @@ -427,7 +442,10 @@ [![](img/How-to-participate-in-GovHack_html_74d01d05-300x195.jpg "Gephi Screenshot")](img/How-to-participate-in-GovHack_html_74d01d05.jpg)Desktop graph editor and renderer. Many good automatic layout algorithms even for very large graphs. +Many tools can produce input files for Gephi including Graph Databases and [a Excel Spreadsheet to map twitter social networks](http://dfreelon.org/2013/04/26/spreadsheet-converts-tweets-for-social-network-analysis-in-gephi/) + ### [sigma.js](http://sigmajs.org/) [![](img/How-to-participate-in-GovHack_html_m6006eaf3-300x130.jpg "Sigma.js Screenshot")](img/How-to-participate-in-GovHack_html_m6006eaf3.jpg)Javascript graph viewer for displaying graphs on webpages without any other plugins/applications required. It can use GEXF files exported from tools like neo4j, gephi or NetworkX. - + It's also possible to [filter/search the displayed network in sigma.js](https://github.com/jacomyal/osdc2012-sigmajs-demo) + --- a/index.php +++ b/index.php @@ -1,3 +1,10 @@ + @@ -26,8 +33,22 @@

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[toggle title=\"",$content); + $content = str_replace("
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@@ -41,13 +62,13 @@ $('#toc').toc({ 'selectors': 'h1' }); - /*$(function(){ + $(function(){ $('
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