Ervin Varga, Ph.D.

icon indicating a website link https://www.ErvinVarga.com icon indicating an email [email protected]

icon company Expro I.T. Consulting icon location Serbia icon location I'm an IEEE certified software engineer, owner/CEO of Expro I.T. Consulting, and associate professor at the Faculty of Technical Sciences, Novi Sad, Serbia.

Results 3 issues of Ervin Varga, Ph.D.

Improvement to the Log Analyzer SQL example

The following code can be improved by better leveraging SQL: ``` // Calculate statistics based on the content size. Tuple4 contentSizeStats = sqlContext.sql("SELECT SUM(contentSize), COUNT(*), MIN(contentSize), MAX(contentSize) FROM logs") .map(row...

Typos in the text in section 'First Logs Analyzer in Spark'

The following text contains a small typo: > Again, call cache on the conte**x**t size RDD... The word _context_ should be replaced with _content_. Also, the next section of the...

Incorrect solution for Exercise 5.4-4

4 comment

Mutual independence is required for exact calculation, because it assumes that the sample space is uniformly distributed (any sequence of k birthdays should be equally likely with probability $\frac 1...