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At SXSW Interactive in 2011, I attended a session on geotemporal data visualization that made me keen to make it easier for Maps API developers to build visualizations similar to those discussed. For this reason I’m particularly excited to introduce a simple, yet powerful, new concept to the Maps API v3 that we call Symbols.
Unlike the image icons currently used for marking locations on a map, a Symbol is defined as a vector shape. The size, stroke width, color, and opacity of the shape, are all set by the Maps API application and can be dynamically modified. A small number of shapes, such as a circle, are provided by the Maps API, and custom shapes can be expressed as an SVG path.
Symbols open up a wide range of compelling new possibilities for data visualization and visual effects. For example, the below map illustrates the expansion of the Walmart chain of stores between 1962 and 2006:
In addition to using symbols to represent point features you can also decorate polylines with Symbols. One or more symbols, such as an arrowhead, can be placed at fixed positions on the polyline or repeated along the polyline. Because the polyline that has been decorated does not need to be visible, this feature can also be used to created dotted or dashed polylines, and just as the style of the symbols can be dynamically modified, so too can their location on the polyline:
Developers often ask how they can represent large amounts of data on a map. Improvements in web browser technology have increased the number of markers that can be rendered by a Maps API application, but above a certain threshold the density of markers can overwhelm the user.
An alternative approach is to use a heatmap, and to enable this approach we’re launching support for browser rendering of heatmaps by the Maps API using the new Heatmap Layer. Your Maps API application can define the colour spectrum, intensity range, and behaviour of the heatmap when the map is zoomed. Here’s the Walmart example from above, but this time visualized as a heatmap:
Conversion attribution is the practice advertisers use to give appropriate credit to every impression, interaction or click that helped drive a conversion in a campaign. Instead of the typical “last click wins” model, in which 100% credit is given to that last ad that was clicked on before a conversion, attribution modeling shines a light on the entire path the customer took to get there.
Beyond the “last click wins” approach
There are many reasons why online advertisers have relied on this “last click wins” model. There is a lot of data to sift through, and making sense of it can be a overwhelming. Although only 14% of respondents in a recent survey by Google Analytics in partnership with eConsultancy consider “last click” attribution to be “very effective,” it remains common; most likely because marketers haven't yet found or mastered the right attribution tools. But simply giving all the credit to the final click ignores the contribution of the customer’s previous interactions—whether through search, display or rich media —that led to the final purchase.
At DoubleClick, we provide you with the data needed to properly credit the different channels that led to conversions for your campaigns. First came the Exposure to Conversion Report (E2C), a premium report which lets advertisers view data on up to ten ad interactions leading up to a conversion. Then we released Multi-Channel Funnels in DFA to offer all clients an aggregated view of which channels contribute to and result in conversions.
Expanded insights: The Path to Conversion report
Now, we’re pleased to introduce the Path to Conversion Report. This report, available in new DFA Reporting, makes it easier for you to gain insight into your customer’s journey to a purchase.
For a trial period, the new Path to Conversion report is available to any customer who is already receiving the E2C report.
This new report, currently available to any customer who receives the E2C report, provides similar insights but offers E2C customers significant improvement in a few key areas:
We invite existing E2C customers to log in to DFA Reporting and try out the Path to Conversion report during this trial period. We’re excited to see how you can leverage this report to take the next step in your attribution modeling efforts.
Posted by Aaron Nelson, Product Manager