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visualization: All content tagged as visualization in NoSQL databases and polyglot persistence

Visualizing Algorithms

Mike Bostock:

Algorithms are a fascinating use case for visualization. To visualize an algorithm, we don’t merely fit data to a chart; there is no primary dataset. Instead there are logical rules that describe behavior. This may be why algorithm visualizations are so unusual, as designers experiment with novel forms to better communicate. This is reason enough to study them.

You are in for a BIG treat. Set aside at least 30 minutes to savor this article.

Original title and link: Visualizing Algorithms (NoSQL database©myNoSQL)

via: http://bost.ocks.org/mike/algorithms/


Play with data: Kinetica

Just wow!

Kinetica is a new app for visualizing and exploring data on tablets. Instead of forcing you to use a boring old spreadsheet, Kinetica lets you touch, sift, and play with your data in a physical environment. Each row of data becomes a circle that can be pulled like a magnet into charts, filtered through screens, and selectively highlighted.

Created by a team from Carnigie Mellon, Kinetica is an iPad app. The future of Tableau Software.

Original title and link: Play with data: Kinetica (NoSQL database©myNoSQL)

via: http://vimeo.com/88702738


Some of my favorite data visualization resources

Pretty much everything that contains the words visualization and data in the title is getting my attention. Moreover so if it promises a list of resources that could help me learn a bit of the art of visualization. Aaron Cordova’s list contains books, sites, and tools:

Visualization is more art than science at this point, although some have used it enough to be able to identify successful techniques for various purposes. Most successful visualizations are perhaps more dependent upon the decision or task at hand than the actual original structure of the data.

Original title and link: Some of my favorite data visualization resources (NoSQL database©myNoSQL)

via: http://www.aaroncordova.com/2014/02/some-of-my-favorite-data-visualization.html


A Tour Through the Visualization Zoo

I’ve been looking for such a resource for quite a bit of time. Yesterday I’ve run into the article signed by Jeffrey Heer, Michael Bostock and Vadim Ogievetsky from Stanford University which provides:

A survey of powerful visualization techniques, from the obvious to the obscure.

Everyone’s recommending Edward Tufte’s The Visual Display of Quantitative Information. After reading it, I realized that I was expecting something else.. This article is what I was looking for.

Original title and link: A Tour Through the Visualization Zoo (NoSQL database©myNoSQL)

via: http://queue.acm.org/detail.cfm?id=1805128


The 20 Best Tools for Data Visualization

Very nice list of visualization tools, some of them I’ve never heard of:

  1. iCharts
  2. Flot
  3. Raphaël
  4. ModestMaps
  5. Leaflet
  6. Timeline
  7. Exhibit
  8. WolframAlpha
  9. Visual.ly
  10. VisualizeFree
  11. BetterWorldFlux
  12. jQuery Visualize
  13. jqPlot
  14. Dipity
  15. ManyEyes
  16. D3.js
  17. JavaScript InfoVis Toolkit
  18. jpGraph
  19. Highcharts
  20. Google Charts

There’s one I know of that’s not in this list: Tableau Software.

Original title and link: The 20 Best Tools for Data Visualization (NoSQL database©myNoSQL)

via: http://www.creativebloq.com/design-tools/data-visualisation-712402


Neo4j-Based Bitcoin Block Chain Visualizer

Pretty interesting usage of Neo4j for visualizing Bitcoin block chain:

BlockViewer

Source code available on GitHub.

Original title and link: Neo4j-Based Bitcoin Block Chain Visualizer (NoSQL database©myNoSQL)

via: https://github.com/thallium205/BitcoinVisualizer


Linkurious: Visualize Graph Data Easily

Nice tool for visualizing and exploring graph databases:

linkurious-screenshot-12-e1354194477174

Currently it supports only Neo4j, but it can be extended to other graph databases.

Original title and link: Linkurious: Visualize Graph Data Easily (NoSQL database©myNoSQL)

via: http://linkurio.us/


Rickshaw: Interactive Time Series Graphs JavaScript Toolkit

Rickshaw is a JavaScript library providing the elements needed to create interactive time series graphs: renderers, legends, hovers, range selectors:

Rickshaw Scatter plot with multiple series

The Richshaw example page lists many other visualizations.

Original title and link: Rickshaw: Interactive Time Series Graphs JavaScript Toolkit (NoSQL database©myNoSQL)


Gallery of Named Graphs

Wikipedia: some of the finite structures considered in graph theory have names, sometimes inspired by the graph”s topology, and sometimes after their discoverer.

Strongly regular graphs

Even if you’re not into graphs, graph databases, or graph processing, some of these are truly beautiful.

Peter Neubauer

Original title and link: Gallery of Named Graphs (NoSQL database©myNoSQL)


Visualizing Systems Behavior: Subsecond Offset Heat Maps

This one is for ops, devops, noops and everyone else that loves some state-of-art real-systems behavior visualizations and investigation:

The subsecond offset heat map puts time on two axes. The x-axis shows the passage of time, with each column representing one second. The y-axis shows the time within a second, spanning from 0.0s to 1.0s (time offsets). The z-axis (color) show the count of samples or events, quantized into x- and y-axis ranges (“buckets”), with the color darkness reflecting the event count (darker == more).

Visualizing Systems Behavior: Subsecond Offset Heat Maps

Speechless

Original title and link: Visualizing Systems Behavior: Subsecond Offset Heat Maps (NoSQL database©myNoSQL)

via: http://dtrace.org/blogs/brendan/2012/03/26/subsecond-offset-heat-maps/


Different Graph Visualization Models: Graphs Beyond the Hairball

Networks are usually drawn using a technique called node-link diagrams. While that works well for small graphs (the technical name for networks), it breaks down beyond a few dozen nodes. […] For a while now, people in visualization have talked about the graph without the graph, i.e., graph visualization without the hairballs. Networks are clearly important and challenging data, and it seems a bit myopic to only look at node-link visualization. Node quilts and the PivotGraph represent promising steps into a very different direction.

These are some good answers to how to scale graph visualizations.

Original title and link: Different Graph Visualization Models: Graphs Beyond the Hairball (NoSQL database©myNoSQL)

via: http://eagereyes.org/techniques/graphs-hairball


Visualizing Hadoop data with Tableau Software and Cloudera Connector for Tableau

Put together one of the most impressive visualization tools, Tableau Software, with one of the best solutions for big data, Hadoop, and you’ll probably get some astonishing results.

Cloudera Connector for Tableau

Credit Cloudera.

While Tableau Software works with structured data only, with this connector it gets access to Hive through HiveQL.

Original title and link: Visualizing Hadoop data with Tableau Software and Cloudera Connector for Tableau (NoSQL database©myNoSQL)

via: http://www.cloudera.com/blog/2012/02/cloudera-connector-for-tableau-has-been-released/