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Using Crystal Reports with Limesurvey
While Limesurvey is a very nice tool to create and manage web surveys, it’s a bit lacking in the reporting area. The functions are a limited and even if you want a quick and dirty, but presentable...
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Incoming call popup under Ubuntu and Asterisk
When I worked in a survey firm, I was tasked with building a VOIP system to cut costs and to raise productivity. The biggest productivity drain in an outbound call center is the dialing time and...
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Legislative Explorer | Multidimensional Vote Explorer
Less visually striking than my last project, this visualization shows the voting patterns of Canadian Members of Parliament. It uses a Principal Component Analysis (or PCA) transformation to convert...
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Limesurvey: How to import responses from a modified deactivated table
A good number of my consulting clients use the very useful and powerful survey tool Limesurvey. Unfortunately, since version 1.92+, it seems impossible to reimport deactivated responses tables into...
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Traquer les avions en temps réel avec une antenne et 20$
Un super-bidouilleur a récemment découvert qu’en utilisant une certaine marque (RTL) de clés USB pour écouter la télé, il était possible de capter et décoder une très grande partie du spectre radio à...
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A Map of the Geographic Structure of Wikipedia Topics
Mountains, peaks, summits, etc. A large number of Wikipedia articles are geocoded. This means that when an article pertains to a location, its latitude and longitude are linked to the article. As you...
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A Map of the Geographical Structure of Wikipedia Links
Click to enlarge! There are a lot of Wikipedia visualizations. Some concentrate on article contents, others on the links between articles and some use the geocoded content (like in my previous blog...
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Asterisk Call Notifications to PushBullet
Pushbullet Notification for an Incoming Call – no, it’s not my real phone number :-) Several years ago, I wrote a python script to notify me when my asterisk server got an incoming call. I programmed...
View Article15 Years of News – Analyzing CNN Transcripts: Retrieving & Parsing
A while back, I saw that the Internet Archive hosted an archive of CNN transcripts from 2000 to 2012. The first thing that came to my mind was that this was an amazing corpus to study. It contained the...
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15 Years of News – Analyzing CNN Transcripts: Timelines
Kibana shows that “elections”is a keyword that has a spike every 4 year With 15 years of CNN transcripts loaded a database, I could now run queries to visualize the occurrences of words – like names –...
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15 Years of News – Analyzing CNN Transcripts: Topics
High-level visualization of topics in CNN’s corpus As we saw in the previous article, temporal analysis of individual keywords can be very interesting and uncover interesting trends, but it can be...
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15 Years of News – Analyzing CNN Transcripts: Visualizing Topics
High-level visualization of topics in CNN’s corpus By extracting several topics from our news corpus, we gained a 10,000 feet view of corpus. We were able to outline many trends and events, but it took...
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Chart Miner – Exploring 2d Projections
T-SNE, PCA and other dimensionality reduction algorithms have always been a good way to visualize high-dimensionality datasets. Unfortunately, most of the time, the visualization stops there. If...
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