Lynn Cherny, Ph.D.
EM-Lyon Marketing & Innovation
This was a google search, but also recommended: http://bigdatapix.tumblr.com/
Men in front of walls of big data.
Men in front of wall-sized networks.
A search for #BigData on Twitter is pretty gross...
And my spam folder looks similar.
Big data is like teenage sex: Everyone talks about it, nobody really knows how to do it, everyone thinks everyone else is doing it, so everyone claims they are doing it.
--Dan Ariely of Duke University
Mike Driscoll: https://www.quora.com/How-much-data-is-Big-Data
A server issue in Virginia is affecting most of the northeast, disrupting the infrastructure for many popular products and services including Netflix, Product Hunt, Medium, SocialFlow, Buffer, GroupMe, Pocket, Viber Amazon Echo and more.
It’s certainly not the first time AWS has taken much of the Internet out with it. In 2013, AWS suffered a similar outage that took services like Instagram, Airbnb and Vine offline. According to Buzzfeed, that’s a loss of about $1,100 per second for Amazon.
slide from Jeff Patti: http://www.slideshare.net/JeffPatti/map-reducebeyondwordcount
The nightmare that is Java Hadoop...
This is "hello world" word count.
At this point, I had a working data pipeline in an IPython notebook, but this was not the full project. I still needed to figure out how to make the pipeline fully automated, instead of manually running IPython notebook cells one after the other.
API: "application programming interface"
Related project with maybe cleaner data: Phoenix
Crossfilter / dc.js dash I built...
[ok, but for some problems]
The first lesson of Web-scale learning is to use available large-scale data rather than hoping for annotated data that isn’t available. For instance, we find that useful semantic relationships can be automatically learned from the statistics of search queries and the corresponding results-- or from the accumulated evidence of Web-based text patterns and formatted tables-- in both cases without needing any manually annotated data.
We were wrong. We found that phone metadata is unambiguously sensitive, even in a small population and over a short time window. We were able to infer medical conditions, firearm ownership, and more, using solely phone metadata.
4Square Checkins, AKA, Your secrets aren't safe.
Uber had just told all its users that if they were having an affair, it knew about it. Rides to Planned Parenthood? Regular rides to a cancer hospital? Interviews at a rival company? Uber knows about them, too.
Not just machine learning (or AI or deep learning or NLP)....
The most famous venn diagram of "data science skills"
This type is primarily concerned with making sense of data or working with it in a fairly static way. The Type A Data Scientist is very similar to a statistician (and may be one) but knows all the practical details of working with data that aren’t taught in the statistics curriculum: data cleaning, methods for dealing with very large data sets, visualization, deep knowledge of a particular domain, writing well about data, and so on.
Type B Data Scientists share some statistical background with Type A, but they are also very strong coders and may be trained software engineers. The Type B Data Scientist is mainly interested in using data “in production.” They build models which interact with users, often serving recommendations (products, people you may know, ads, movies, search results).
Robert Chang's piece on data scientist types
(Sometimes true for medium data, too!)
Visualization of daily Wikipedia edits created by IBM. At multiple terabytes in size, the text and images of Wikipedia are an example of big data.
Demo by Mike Bostock
How Do People Play The Trading Game: https://www.bloomberg.com/features/2015-stock-chart-trading-game/analysis/
"Playing the Trading Game"
Year in Graphics at Bloomberg: https://www.bloomberg.com/graphics/2016-in-graphics/
A Survey of Deep Learning Techniques Applied to Trading:
for finance, fyi :)
Demo in my acct
lots of tutorials and community code... https://www.quantopian.com/posts/quantopian-tutorial-series
their head data scientist: Thomas Wiecki @twiecki
Big Data and whole data are not the same. Without taking into account the sample of a data set, the size of the data set is meaningless. For example, a researcher may seek to understand the topical frequency of tweets, yet if Twitter removes all tweets that contain problematic words or content – such as references to pornography or spam – from the stream, the topical frequency would be inaccurate. Regardless of the number of tweets, it is not a representative sample as the data is skewed from the beginning.
d. boyd and K. Crawford, "Critical Questions for Big Data"
... four quantitatively adept social scientists reported that Google’s flu-tracking service not only wildly overestimated the number of flu cases in the United States in the 2012-13 flu season — a well-known miss — but has also consistently overshot in the last few years. Google Flu Trends’ estimate for the 2011-12 flu season was more than 50 percent higher than the cases reported by the Centers for Disease Control and Prevention. ...Their technical criticism of Google Flu Trends is that it is not using a broader array of data analysis tools. Indeed, their analysis shows that combining Google Flu Trends with C.D.C. data, and applying a few tweaking techniques, works best.
Big Data Hubris? Or "not invented here"...
And while there is an enormous structural power asymmetry between the surveillers and surveilled, neither are those with the greatest power free from being haunted by a very particular kind of data anxiety: that no matter how much data they have, it is always incomplete, and the sheer volume can overwhelm the critical signals in a fog of possible correlations.
In this article I explore the proposition that ‘big data’ is above all the foundational component in a deeply intentional and highly consequential new logic of accumulation that I call surveillance capitalism. This new form of information capitalism aims to predict and modify human behavior as a means to produce revenue and market control.
algorithms that are important, secret and destructive
monitoring YouTube and FB likes in real time....
Slide link: https://ghostweather.slides.com/lynncherny