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Welcome to my blog, which was once a mailing list of the same name and is still generated by mail. Please reply via the "comment" links.

Always interested in offers/projects/new ideas. Eclectic experience in fields like: numerical computing; Python web; Java enterprise; functional languages; GPGPU; SQL databases; etc. Based in Santiago, Chile; telecommute worldwide. CV; email.

© 2006-2013 Andrew Cooke (site) / post authors (content).

Sentidos Comunes (Chilean Online Magazine)

From: andrew cooke <andrew@...>

Date: Sun, 21 Sep 2014 11:03:16 -0300

http://www.sentidoscomunes.cl/

Looks like some good, serious reporting on local and international issues in
spanish.

Andrew

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Previous Entries

For comments, see relevant pages (permalinks).

Hilary Mantel: The Assassination of Margaret Thatcher - August 6th 1983

From: andrew cooke <andrew@...>

Date: Fri, 19 Sep 2014 15:25:25 -0300

http://www.theguardian.com/books/2014/sep/19/hilary-mantel-short-story-assassination-margaret-thatcher

Andrew

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NSA Interceptng Gmail During Delivery

From: andrew cooke <andrew@...>

Date: Thu, 11 Sep 2014 08:59:12 -0300

Well, it doesn't actually say that, but...

http://www.cert.org/blogs/certcc/post.cfm?EntryID=206

(I may be jumping to conclusions but this seems pretty big.  I wonder if
Google et al track the source address of incoming SMTP connections?)

Andrew

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General IIR Filters

From: andrew cooke <andrew@...>

Date: Sun, 7 Sep 2014 22:48:05 -0300

I just wasted a weekend on this...

When you read about IIR filters they're always drawn in a certain way, as a
rather orderly set of delays, scales, and sums.  It struck me that there must
be a lot more variety if you allow general (directed) graphs.  So I had the
idea to write some Julia code that would evolve filters, using a GA, given a
target response function.  The GA doesn't really "care" that the graphs are
complex, and the hope was to generate much more compact expressions for useful
filters.

Well, the code didn't get that far.  I wrote a few basic data structures and
the routines to generate graphviz plots of the filters (the graphs).  To test
this I decided to define and graph a filter from a DSP textbook.  The most
complicated I could find was in a section that showed how arbitrary
combinations of filters could be reduced to the orderly canonical form...

So by looking for a nice filter to test I found the evidence that what I was
doing was pointless - it doesn't provide anything that the canonical approach
doesn't also provide (well, that's not completely true - it's possible it
might find a way to use less memory space, but there's no possibility for a
"completely new kind of filter").

Ah well.  Live and learn.  At least I wanted to program in my spare time,
which has been unusual this last 6 months or so.

Andrew

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What's happening with Scala?

From: andrew cooke <andrew@...>

Date: Fri, 5 Sep 2014 22:36:39 -0400

3 different compilers:

Typesafe (Odersky's company)'s original (canonical scala)
https://github.com/scala/scala

A community fork
http://typelevel.org/blog/2014/09/02/typelevel-scala.html
https://github.com/typelevel/scala
and related HN discussion which I haven't read yet -
https://news.ycombinator.com/item?id=8258255

And now https://github.com/paulp/policy from the guy who did most of the work
on the canonical code.
http://www.reddit.com/r/programming/comments/2fl5te/yet_another_fork_of_the_scala_compiler/
http://www.reddit.com/r/programmingcirclejerk/comments/2fkx8l/finally_scala_gets_multiple_dialects_watch_out/

So, did Scala just implode?

Andrew

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Interesting (But Largely Illegible) Typeface

From: andrew cooke <andrew@...>

Date: Mon, 1 Sep 2014 10:48:25 -0400

https://www.behance.net/gallery/19004863/Nihon-Typeface

Andrew

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Retiring Essentialism

From: andrew cooke <andrew@...>

Date: Sat, 30 Aug 2014 12:04:46 -0400

http://edge.org/response-detail/25366

Andrew

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Poorest in UK, Poorest in N Europe

From: andrew cooke <andrew@...>

Date: Mon, 25 Aug 2014 08:33:41 -0400

https://welfaretales.files.wordpress.com/2014/08/43_poor_north_europe_700.png

Andrew

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I Want To Be A Redneck!

From: andrew cooke <andrew@...>

Date: Tue, 19 Aug 2014 14:49:06 -0400

https://www.youtube.com/watch?v=KiydUoBhvZs

Andrew

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Reverse Racism

From: andrew cooke <andrew@...>

Date: Mon, 18 Aug 2014 08:55:42 -0400

https://www.youtube.com/watch?v=ojJxGRgU0KE

Andrew

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The Lost Art Of Nomography

From: andrew cooke <andrew@...>

Date: Wed, 13 Aug 2014 21:19:40 -0400

Nom nom nom!

http://myreckonings.com/wordpress/wp-content/uploads/JournalArticle/The_Lost_Art_of_Nomography.pdf

Andrew

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IBM Data Center (Photo)

From: andrew cooke <andrew@...>

Date: Tue, 12 Aug 2014 15:40:05 -0400

http://i.imgur.com/JoNHc6K.jpg

Andrew

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