Category: Data Vizualisation

Feed: Featured Posts - DataViz. Author: Vincent Granville. This chart communicates the same insights as a contour plot. What is interesting is the choice of hexagonal buckets (rather than squares) to aggregate data. In fact, any tessellation would work, in particular Voronoi tessellations. 3-D Voronoi tessellation  The reason for using hexagons is that it is still pretty simple, and when you rotate the chart by 60 degrees (or a multiple of 60 degrees) you still get the same visualization.  For squares, rotations of 60 degrees don't work, only multiples of 90 degrees work. Is it possible to find a tessellation such that smaller ... Read More

Feed: Featured Posts - DataViz. Author: Tim Miller. Data visualization is a general term that describes any effort to help people understand the significance of data by placing it in a visual context. Patterns, trends and correlations that might go undetected in text-based data can be exposed and recognized easier with data visualization software.This concept is not new.  Data has been visualized for at least 240 years, ever since Joseph Priestley first used timeline charts to plot the lifespan of people.  Inspired by Priestley’s work and his own childhood conducting rudimentary science experiments with his brother, William Playfair created the ... Read More

Feed: Featured Posts - DataViz. Author: Laura. No matter the job, most professionals do some level of analysis on their computer.  There are always some data sets that live outside the walls.  Or, some analyses that we know could be performed better in a not-easily-sharable tool such as excel, R, python, SPSS, SAS and so on. So how do you share your personal analysis with others?  Often times people export the graphs and tables to add into a presentation file.  One of the largest downfalls to this approach is that it can cause versioning and updating nightmares.   What if I ... Read More

Feed: Featured Posts - DataViz. Author: Scott Whitaker. Pictographs are exceptionally good for some types of data. In this post, I show how useful they are for displaying proportions (e.g. rates, percentages, fractions).Look at the pictograph example on the right. It shows the case fatality rate using colored stick figure icons. These quantities could be just as appropriately shown using pie or bar charts (see above). However, the pictorial representation makes this statistic intuitive: out of every 100 individuals infected with SARS, you can expect 11 to die.Pictographs have an intrinsic scaleThe icons give the pictograph an intrinsic scale. Compare ... Read More

Feed: Featured Posts - DataViz. Author: Vincent Granville. Guest blog by Robert Breen.What is PowerBI? Power BI is a collection of software services, apps, and connectors that work together to turn your unrelated sources of data into coherent, visually immersive, and interactive insights. Whether your data is a simple Excel spreadsheet, or a collection of cloud-based and on-premises hybrid data warehouses, Power BI lets you easily connect to your data sources, visualize (or discover) what’s important, and share that with anyone or everyone you want. Power BI can be simple and fast – capable of creating quick insights from an Excel ... Read More

Feed: AnalyzeCore by Sergey Bryl' – data is beautiful, data is a story. The larger and more complex the business the more metrics and dimensions. One day you understand that it is impossible to track them with only your eyes. Reducing the number of metrics and/or dimensions can prevent us from tracking all aspects of the business or analyzing aggregated data (for example, without dimensions), which can substantially smooth out or hide the anomalies. In such a situation, the detection of any anomalies after the actual occurrence can either be missed or have a significant time gap. Therefore, we have ... Read More

Feed: AnalyzeCore – data is beautiful, data is a story. This is the last post in the series of articles about using Multi-Channel Attribution in marketing. In previous two articles (part 1 and part 2), we’ve reviewed a simple and powerful approach based on Markov chains that allows you to effectively attribute marketing channels. In this article, we will review another fascinating approach that marries heuristic and probabilistic methods. Again, the core idea is straightforward and effective. Sales Funnel Usually, companies have some kind of idea on how their clients move along the user journey from first visiting a website to ... Read More

Feed: AnalyzeCore – data is beautiful, data is a story. This is the second post about the Marketing Multi-channel Attribution Model with Markov chains (here is the first one). Even though the concept of the first-order Markov chains is pretty simple, you can face other issues and challenges when implementing the approach in practice. In this article, we will review some of them. I tried to organize this article in a way that you can use it as a framework or can help you to create your own. The main steps that we will review are the following: splitting paths depending on purchases ... Read More

London – April 6, 2017 If you are using 2.2.x series, please upgrade your production environments to v2.2.18. View our Change Log for a full list of new functionalities, bug fixes and other improvements. Download The Latest OrientDB (v2.2.18) version: http://orientdb.com/download If you are currently using a previous version of OrientDB, we recommend you upgrade using the link above. However, if you would like to download previous versions of OrientDB Community Edition, you may do so here: http://orientdb.com/download-previous/ Noteworthy Enhancements For a complete list of enhancements, improvements and bug fixes, have a look at the complete OrientDB Changelog. Console – New LOAD SCRIPT command Studio – New studio notifications and enhancements– ... Read More

Feed: Featured Posts - DataViz. Author: Andrei Macsin. This article is not about any futuristic "Iron Man style dashboard/data visualization product" where you are combing through holographic cubic chunks from your ultra fast Big Data pipeline. From time to time I keep pondering on what could be the future and I am sure lot of us get this science fiction imagery where the future data analyst will be given just a pair of holographic gloves and perform three dimensional analysis. Let us stop day dreaming and get to the basics.Dashboards have come a long way. These days lot of vendors ... Read More