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Kevin Clarke (ksclarke)
Works at University of California, Los Angeles
Attended UNC Chapel Hill
Lives in Boone, NC
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Kevin Clarke

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Kevin Clarke

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via +Kristian Allen 
sar, benchmarking, tuning: Images license: creative commons Attribution-ShareAlike 4.0. This page links to various Linux performance material I've created, including the tools maps on the right. These show: Linux observability tools, Linux benchmarking tools, Linux tuning tools, and Linux sar.
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Kevin Clarke

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Home Solar Investment Better Than Stock Market
According to the North Carolina Solar Center, a resource center for sustainable energy programs at North Carolina State University, in 46 of America’s 50 largest cities, a fully-financed, typically-sized solar PV system is a better investment than the stock market, and in 42 of these cities, the same system already costs less than energy from a residential customer’s local utility.

See report: http://nccleantech.ncsu.edu/wp-content/uploads/Going-Solar-in-America-Ranking-Solars-Value-to-Customers_FINAL.pdf

Image credit:
http://www.solarpowerpanelsystem.com/
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I usually don't pay much attention to the numbers behind social network use (since I use what I use because of the interactions I have and the features of the system (e.g., being able to edit posts, etc.)), but this is an interesting article. I didn't know Google was publishing sitemaps for G+.  Sounds like something with which it might be fun to experiment...

via +Cara Evangelista 
 
My G+ public posting activity estimates have been cited again -- and misrepresented

This time the source is Mike Murphy, writing at Quartz, in "Google, proving it still hasn’t figured out social, will strip Google+ for parts"
http://qz.com/354015/google-proving-it-still-hasnt-figured-out-social-it-will-strip-google-for-parts/

I'll pass comment on the headline for now.

Regards G+ activity, Murphy writes:

Google+ is a social graveyard. It’s reported to have more than 2 billion profiles, but fewer than 6 million active users.

The paragraph links to +Kevin Anderson's graphic based on my results (which I've adopted as a profile cover photo), so there's no doubt as to his source:  http://kevinanderson.nl/how-many-people-are-publicly-using-google-plus/


Unfortunately that's a misrepresentation of my analysis and results.  I've sent the following to Mr. Murphy's email address at Quartz:


I'd like to correct one point as I'm the source of the stats and you're misrepresenting them.  I did NOT find that there are only 6 million monthly actives on G+.  I don't have access to Google's systems or data which would be capable of showing that.  Rather, I looked at a specific question I could answer through data sampling:

How many G+ profiles show a most recent post within the current calendar month?

The full report is here:
https://ello.co/dredmorbius/post/nAya9WqdemIoVuVWVOYQUQ

The answer I arrived at:  about 6.6 million users, have made public G+ post in 2015, as measured January 19.

If you look at a full months' data, the number is closer to 10 million.  If you consider non-public activity (I did a second analysis to impute that), there's probably another 50% of users.  After which things start getting really squirrelly and the best tool I've got to pull out is the old 90-9-1 heuristic which suggests that of the 10-15 million users we're seeing there's probably another 90% who are mostly lurking.  There are a few ways that might slide, but true actives could be anywhere from 50 - 150m monthly.  Still far below what Facebook claims (likely also inflated).  But well above the 6 you cite.

I'd prefer you clarified that 6 million is "publicly visible posts January 1-18, 2015", and is NOT a direct indicator of monthly active users.

Much as I'm annoyed at Google for not publishing credible and useful numbers themselves, I've no interest in seeing my own estimates misused or misrepresented.

I'm also happy to report that I use G+ extensively myself.  Though smallish and with many annoyances, it does have a number of compelling features and a community I've found useful.
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I think it was Ranganathan who said "Save the time of the search engine"... :)
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What Makes an Electric Guitar Sound Like an Electric Guitar http://trib.al/pPgexs0
A series of happy accidents and analog technologies led to the weird sound effects of the 1950s and beyond. An Object Lesson.
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Kevin Clarke

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Watch the most explosive video you'll see all day.
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* sniff  *

#thefeels  

via +Joren Van Severen 
 
Finding the right car insurance should be fast and easy. That's why you'll soon be able to search for car insurance on Google and quickly compare quotes from over a dozen providers. Find a quote customized just for you, and buy online or over the phone through a licensed agent. In the UK, most people are already saving an average of $110. Check out Google Compare today: google.com/compare. This sponsored unit is available in California, with more states to follow.

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Sony Pictures Classics presents 'Merchants of Doubt' - A film by by Robert Kenner - Opens NY & LA March 6, Coming Soon to A City Near You
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Cool, but obscure unix tools
A little collection of cool unix terminal/console/curses tools. Just a list of 20 (now 28) tools for the command line. Some are little-known, some are just too useful to miss, some are pure obscure -- I hope you find something useful that you weren't aware of yet! Use your operating system's ...
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I know I've posted this before, but it's in my stream again and I like it so...

via +Brett Coulthard 
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I do like this video. 
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People
In his circles
841 people
Work
Occupation
Digital Library Programmer at the UCLA Library
Employment
  • University of California, Los Angeles
    Digital Library Programmer, 2012 - present
  • University of California, Santa Cruz (IMLS Grant)
    Digital Library Programmer for the Grateful Dead Archive, 2011 - 2012
  • Duke University/NESCent (NSF Grant)
    Dryad Data Repository Programmer, 2009 - 2011
  • Appalachian State University
    Coordinator of Web Services, 2007 - 2009
  • Princeton University
    Digital Library Programmer, 2004 - 2007
  • Stanford University
    Digital Information Systems Developer, 2000 - 2004
  • UNC Chapel Hill
    Copy Cataloger, 1994 - 2000
Places
Map of the places this user has livedMap of the places this user has livedMap of the places this user has lived
Currently
Boone, NC
Previously
Richmond, VA - Mountain View, CA - Princeton, NJ - Chapel Hill, NC - Greensboro, NC
Story
Tagline
A father, husband, programmer, librarian, tattoo and sci-fi fan; a vegan, quaker, buddhist, and introvert; a 1979 westfalia owner... and, a perpetual rambler who is rarely at ease.
Introduction
My tagline probably says it all, but in case not:

"Anything you want to know, just ask me,
I'm the world's most opinionated man.
I'll give you an answer if I can
Catch one passing through
That feels right for you.

Anything you want to know, just ask me,
It's worth every cent it costs.
And you know it's free for you,
Special deal.

Anything you want to know, it should be perfectly clear.
You see just beneath the surface of the mud,
There's more mud here...
Surprise." -- David Crosby

Things that interest me (feel free to add me to related circles):
  • Animals (veganism, vegetarianism, psychology, etc.)
  • Music (folk, rock, acoustic, bluegrass, old time, etc.)
  • Science (astronomy, cognitive science, health, etc.)
  • Programming (Java, XQuery, PHP, XML, etc.)
  • Tech (Android, Arduino, Raspberry Pi, DIY, etc.)
  • Religions (Quakerism, Buddhism, Non-violence, etc.)
  • Digital libraries/archives, curation, and digital access
  • Copyright, gift-culture, and open source software
  • Appalachia (music, culture, region, preservation, etc.)
  • Volkswagon Type II Campers (repair, history, etc.)
  • Science Fiction (movies, books, literary criticism, etc.)
For what it's worth, I post (almost) everything to my main G+ stream.  I won't be upset if you uncircle me (or don't add me) because you want a more focused stream.

If you'd prefer to follow my G+ stream in your RSS reader, feel free to use this link:


Perhaps this goes without saying but, since I list my current employer and previous places I've worked, I'll say it anyway:
 
All opinions on this account are my own and not my employers'
Bragging rights
I live in the NC mountains and work in Los Angeles, CA
Education
  • UNC Chapel Hill
    Information Science, 1995 - 2000
  • Guilford College
    English, 1988 - 1994
Basic Information
Gender
Male
Relationship
Married
Other names
ksclarke