Tags » Data Analysis

Recommender engines and inner product

Last week, I introduced inner product of vectors as an essential tool for statistical models.  Let us apply inner product to recommender engines this week. 469 more words

Big Data

Word clouds: "mullets of the internet"? What would Tupac say?

The description of word clouds employed by Jeffrey Zeldman as the “mullets of the internet” made me laugh.  I’ve never found them particular attractive to look at.  576 more words

Data Analysis

Are men better drivers than women?

The age old question. I thought I would try and answer it using data from the Canadian National Collision Database. The Canadian government, as part of its Open Data initiative, has made publicly available, a dataset that contains over 4 million records of traffic collision reports. 227 more words

Car Accidents

Webinar: How Big Data Helped Cut Crime by Nearly a Third in Toledo

This blog post is sponsored by IBM.

It was just a few years ago—June 2011 to be exact—that Toledo saw a 226 percent jump in shootings over that same month in 2009. 159 more words

Technology

The invisible borders that define American culture

When we think about borders, we tend to think of administrative boundaries. Those demarcating lines, often grown out of rivers and mountain ranges or diplomatic quirks, govern our daily lives, and that’s doubly so if we live near a neighboring country or state. 989 more words

Master Compilation of Stock Market Performance During Thanksgiving Week

With the short Thanksgiving week coming up here is an extended compilation of historical stock market returns found across the web.

From Zerohedge:

Historically, many global markets have behaved differently during the week surrounding the US Thanksgiving holiday.

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Trading