Thoughts and Links

Plastic eating fungi

2012-01-30T19:08:00.001-08:00

http://www.fastcoexist.com/1679201/fungi-discovered-in-the-amazon-will-eat-your-plastic

Step 1. Get Plastic Eating Fungi.
Step 2. Put plastic eating fungi in box with over the top eco branding.
Step 3. Profit!

Class of the future

2012-01-29T10:23:00.001-08:00

https://plus.google.com/107809899089663019971/posts/4VuN2RsRggB

"We propose a flipped classroom model, in which students use our interactive videos to watch the content in advance, and classroom time is used for a more meaningful and engaging interaction between faculty and students, and between students themselves."

I like this idea a lot.

Eye tracker

2012-01-24T10:27:00.001-08:00

Here is an interesting idea:

The first article is about tricking your eye into seeing impossible color combinations. (Red-Green, Yellow-Blue, etc). The key is to use an eye tracker to always show the same parts of your eyes the same colors.
The second article is on eye tracking with open CV. It would take a bit of work, but I think this whole system could be done on iPad/etc.

http://www.lifeslittlemysteries.com/2069-forbidden-colors-red-green.html
http://opencv-code.com/Real_Time_Eye_Tracking_and_Blink_Detection

Once you have the eyes, You can determine your position relative to the camera (and thus iPad screen) using some simple trig. X and Y for sure... Z would be a little more tricky, but essentially use pairwise distance/scale change.

The next step would be to determine the direction of the eyes themselves. I'm not entirely sure what the best method would be to do that. Any ideas?

Once you had a general purpose library to give you this field of view information, I bet you could come up with a whole bunch of applications.

Optical illusions seem like the obvious first class of products, but I wonder if you could create an entirely new style of UI? For example a lot of UI's currently hide menu bars unless the cursor has entered a region... But the optical illusion idea seems to indicate a whole new class of objects can be drawn that aren't really there. More vivid colors for sure...perhaps some form of 3D that doesn't require glasses.

-JD

---Update---
Apparently you want "Gaze Tracking".

This guy apparently nailed it
http://www.youtube.com/watch?v=iQyG8eFJGgQ

And here is another project with source that _may_ be what we need:
http://www.codeproject.com/Articles/26897/TrackEye-Real-Time-Tracking-Of-Human-Eyes-Using-a

I think these people are utilizing a much simpler approach to detection, by using nightvision mode of a camera, and the iris' high reflectivity, etc.. But after that I suppose all the angle calculations would be the same.

http://www.gazegroup.org/downloads/23-gazetracker

Some papers:
http://books.google.com/books?id=k0VGgU0lHroC&pg=PA117&lpg=PA117&dq=calculate+eye+gaze+calculation&source=bl&ots=RQZLpULcAU&sig=AzWUX6VeRXON6cAvkrKQK7mObH8&hl=en&sa=X&ei=3gsfT82BBeSjmQXc5cHIDg&ved=0CEAQ6AEwAQ#v=onepage&q=calculate%20eye%20gaze%20calculation&f=false

http://www.google.com/url?sa=t&rct=j&q=calculate%20eye%20direction%20of%20view&source=web&cd=1&ved=0CCMQFjAA&url=http%3A%2F%2Fwww.cs.clemson.edu%2F~hmurphy%2Fpapers%2Fbrmic%2FBET102cr.pdf&ei=9ggfT7_JFqSfmQXsnvXADg&usg=AFQjCNHAuzIpjDXxWruUt0Aft5GbL8aD8Q&cad=rja

This must have been a lot of work

2012-01-24T09:37:00.001-08:00

Practically full SQL support on top of Map Reduce framework.
http://research.google.com/pubs/pub37200.html

This is a pretty big deal.

This could be very useful

2012-01-21T10:32:00.000-08:00

Techniques for: finding, solving, proving, optimizing .. etc

http://www.tricki.org/tricki/map

S-Expressions

2012-01-20T08:44:00.001-08:00

All that is old is new again.

http://shinkirou.org/blog/2010/06/s-expressions-the-fat-free-alternative-to-json/

Goths up trees

2012-01-07T14:40:00.000-08:00

Good for 5 minutes of entertainment.
http://gothsuptrees.net/

Integral Images

2012-01-02T17:23:00.001-08:00

http://www.aishack.in/2010/07/integral-images/

Suppose an image is w pixels wide and h pixels high. Then the integral of this will be w+1 pixels wide and h+1 pixels high. The first row and column of the integral image are all zeros.

All other pixels have a value equal to the sum of all pixels before it.

recursive average

2012-01-02T12:48:00.001-08:00

double average = 0;
int number_of_samples = 0;
for(int i=0; i<v.size(); ++i) {
  number_of_samples++;
  average = (average * (number_of_samples - 1) + v[i]) / number_of_samples;
};

The advantage is that the variable "average" will always keep a value that is roughly in the same order of magnitude as the elements that are being averaged. That should improve the resulting accuracy.

Why The Vasa Sank: 10 Lessons Learned

2012-01-02T09:45:00.001-08:00

http://faculty.up.edu/lulay/failure/vasacasestudy.pdf

Lessons-Learned

The lessons to be learned from the sinking of the Vasa are as relevant today as in 1628. Those lessons are summarized as follows:

1. Excessive schedule pressure: The Vasa was completed under strong time constraints to meet a pressing need.

2. Changing needs: Many changes to operational characteristics were made during construction of the ship.

3. Lack of technical specifications: The (non-existent) specifications were not revised as the operational requirements changed.

4. Lack of a documented project plan: During a year-long transition in leadership it was difficult for the assistant to manage the project. This resulted in poor supervision of the various groups working on the ship (i.e., the shipwright, the ship builder, and the

Prepared by 5 of 7 R. Fairleynumerous subcontractors). There is no evidence that the new project manager (the former assistant) prepared any plans after the original shipwright died.

5. Excessive innovation: No one in Sweden, including the shipwright, had ever built a ship having two gun decks.

6. Secondary innovations: Many secondary innovations were added during construction of the Vasa to accommodate the increased length, the additional gun deck, and other changes.

7. Requirements creep: It seems that no one was aware of the degree to which the Vasa had evolved during the 2 1⁄2 years of construction.

8. Lack of scientific methods: There were no known methods for calculating center of gravity, stiffness, and the resulting stability relationships of the Vasa.

9. Ignoring the obvious: The Vasa was launched after failing a stability test.

10. Possible mendacity: Results of the stability test were known to some but were not communicated to others.

While #7 should be well known to everyone, I particularly like #5 and 6.

Someday I'm going to get around to putting together my personal "Lessons Learned". Perhaps a companion cheat sheet/flow chart to help alert me when things are going off the rails. Something like:

"Have I spent 2 months reimplementing a standard feature like SQL Transactions, but in application code?"

etc.

LAB Color Space

2012-01-02T09:18:00.001-08:00

http://en.wikipedia.org/wiki/Lab_color_space

I like the idea of color spaces with imaginary colors...

But here is the best part:

The nonlinear relations for L*, a*, and b* are intended to mimic the nonlinear response of the eye. Furthermore, uniform changes of components in the L*a*b* color space aim to correspond to uniform changes in perceived color, so the relative perceptual differences between any two colors in L*a*b* can be approximated by treating each color as a point in a three dimensional space (with three components: L*, a*, b*) and taking the Euclidean distance between them.

If a saturated green is viewed until the green receptors are fatigued and then a saturated red is viewed, a perception of red more intense than pure spectral red can be experienced. This is due to the fatigue of the green receptors and the resulting lack of their ability to desaturate the perceptual response to the output of the red receptors.^[2]

At Walt Disney World, Kodak engineered Epcot's pavement to be a certain hue of pink so that the grass would look greener.

flying body parts

2011-12-30T11:46:00.001-08:00

Dead man to be sued over flying body parts

http://www.rawstory.com/rs/2011/12/30/dead-man-to-be-sued-over-flying-body-parts/

Really.. what can be said here.

Nearest Neghbor

2011-12-17T16:12:00.001-08:00

In Defense of Nearest-Neighbor Based Image Classification:

http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0CCcQFjAA&url=http%3A%2F%2Fwww.wisdom.weizmann.ac.il%2F~irani%2FPAPERS%2FInDefenceOfNN_CVPR08.pdf&ei=5h_tTo7uDpDKiALzsZ27BA&usg=AFQjCNGWk0lo_L6AEjgco6PPMUZ0YE-zOQ

My first Nearest Neighbor image classifier is working now... I can't say I'm particularly impressed with the results of my first attempt. I'm just converting to a standard image patch doing a normalized correlation.

for( int x=0;x<patch1.length;x++) {

correlation += (double)patch1[x] * (double)patch2[x];

norm1 += (double)patch1[x] * (double)patch1[x];

norm2 += (double)patch2[x] * (double)patch2[x];

}

return( (((correlation / Math.sqrt(norm1*norm2)) + 1.0) / 2.0) );

So I'm going to give this paper a try...

Odd

2011-12-08T10:05:00.001-08:00

I'm always amazed what my keyboard muscle memory comes up with.
Today I was trying to type "must be" and my fingers typed "number".
Looking at the keyboard ...

(m/n) (u/u) s/m t/b ' '/e b/r e/

It must have been triggered by the first two characters + something in my brain thinking about numbers...

Nearest Neighbor with various tree structures (including VP tree)

2011-12-06T13:33:00.001-08:00

http://www.cs.columbia.edu/CAVE/projects/nnsearch/

some useful stuff.

2011-12-04T18:11:00.001-08:00

Might be useful:
VP trees.
http://stevehanov.ca/blog/index.php?id=130

Specifically Normalized Cross Correlation.
http://en.wikipedia.org/wiki/Cross-correlation

Usefull Generics

2011-11-08T11:58:00.000-08:00

This is quite useful:

    public static <T> List<T> asList(T... obj) {
        List<T> result = new ArrayList<T>();
        Collections.addAll( result, obj );
        return( result );
    }

asList(a,b,c,d,e);

Hand made.

2011-11-08T07:44:00.001-08:00

http://thisismadebyhand.com/film/the_knife_maker

JetBrains AppCode is way better than XCode

2011-10-26T09:50:00.000-07:00

This is your public service announcement.

http://www.jetbrains.com/objc/

This changed my perception of reality.

2011-09-16T13:19:00.000-07:00

For real...

http://www.youtube.com/watch?v=EnrwrwMfNSs

Always be Closing... or something like that.

2011-08-24T10:48:00.001-07:00

http://bostinnovation.com/2011/08/24/how-to-sell-tips-from-a-marketing-guy-who-can-actually-sell-something/

see i fixed it!

2011-06-04T13:24:00.000-07:00

hours of lulz

http://seeifixedit.com/

Vegan Black Metal Chef

2011-05-11T20:32:00.000-07:00

It does drag on a bit... but still entertaining.
http://veganblackmetalchef.com/

http://www.youtube.com/watch?v=CeZlih4DDNg

China ghost town

2011-04-03T21:50:00.001-07:00

http://www.sbs.com.au/dateline/story/watch/id/601007/n/China-s-Ghost-Cities

apple store

2011-04-03T20:38:00.001-07:00

http://www.thinkgeek.com/interests/looflirpa/e8bb/?pfm=Carousel_20110401_Apple_Store_2

vision tracking / etc. cool

2011-04-03T19:57:00.001-07:00

http://info.ee.surrey.ac.uk/Personal/Z.Kalal/tld.html

most important algorithms

2011-02-13T09:52:00.001-08:00

http://www.risc.jku.at/people/ckoutsch/stuff/e_algorithms.html

Static Data Race detection

2011-02-12T15:13:00.001-08:00

I'm sure there was a free static analysis tool for data races.. but my internet has lost it.
http://code.google.com/p/jchord/wiki/DataraceChecker
http://code.google.com/p/data-race-test/wiki/RaceDetectionLinks

Racey

2011-02-06T13:37:00.000-08:00

http://mailinator.blogspot.com/2009/06/beautiful-race-condition.html

Much like the author, I love race conditions. I like finding them, I like dreaming up new scenarios where they arise, I like finding all manner of unusual behaviors that arise during concurrency...

Art of negotiating.

2011-02-06T13:33:00.001-08:00

http://www.inc.com/guides/2011/01/five-things-to-never-say-while-negotiating.html

todo: make pitcher of these for hot summer day:

2011-01-01T10:30:00.001-08:00

To be served at the grand opening of the deck, first hot day 2011.

http://gourmetfood.about.com/od/drinkrecipes/r/wtrmelonmartini.htm

1 cup watermelon juice (press watermelon through a sieve or cheesecloth)
1/2 cup (4 oz) Vodka
1/4 cup simple syrup (sugar)
juice of 1 lime
ice
Garnish with hot pepper.

-JD

lock free stuff

2010-12-27T14:40:00.001-08:00

http://www.1024cores.net/

Interesting Java stuff

2010-12-19T18:41:00.001-08:00

I've been following the AZUL pauseless GC for a while...

http://www.artima.com/lejava/articles/azul_pauseless_gc.html

This is also an interesting development:
http://www.managedruntime.org/

Oil and Gadgets

2010-12-19T18:13:00.001-08:00

The #1 stock by market cap is Exxon.
The #2 stock by market cap is Apple.

America: Oil and Gadgets.

http://www.theonlineinvestor.com/large_caps/

If we want to extend that to the top 5:

#3 Microsoft.
#4 Bershire Hathaway
#5 Walmart

America: Oil, Gadgets, Office/Windows, Insurance, and cheap Chinese crap.

Ben Strong's Blog: Google and Microsoft Cheat on Slow-Start. Should You?

2010-11-26T10:44:00.001-08:00

http://blog.benstrong.com/2010/11/google-and-microsoft-cheat-on-slow.html

interesting article about ACID in SQL

2010-11-24T11:51:00.001-08:00

http://danweinreb.org/blog/acid-in-theory-and-practice

Also an interesting link to Postgres' implementation of true Serializable isolation.

http://wiki.postgresql.org/wiki/Serializable

point and crack

2010-11-19T20:28:00.001-08:00

https://groups.google.com/group/pyrit/browse_thread/thread/6fb00f6c41e6ee0c?pli=1

I like that I now have the option to drop $20 to crack any wifi in a couple hours.

I really want to donate...

2010-11-18T21:17:00.001-08:00

So I was reading wikipedia (of course) and they are asking for donations (cool)...
I see the usual donate (10,20,50) dollars buttons... But the "Other" box caught my attention.
If you keep mashing numbers into the box you can get it up to "inf" dollars.
I'm going to sleep on it but I really want to charge infinite dollars to my credit card just to see what it does.

http://wikimediafoundation.org/wiki/WMFJA010/en/US?utm_medium=sitenotice&utm_campaign=20101117BT01&utm_source=2010_JA1_Banner9_US&country_code=US

map reduce plus stream processing

2010-11-07T10:18:00.001-08:00

http://horicky.blogspot.com/2010/11/map-reduce-and-stream-processing.html

rules of drinking

2010-11-04T22:51:00.001-07:00

http://www.drunkard.com/issues/01-02/01_02_booze_rules.htm

I can poop $100

2010-11-02T01:32:00.001-07:00

Funny: "I got $100 for doing this huge thing. I can poop $100"

Under 5 things google did wrong in their hiring/incentivizing etc... only mildly interesting except for the quote.

http://piaw.blogspot.com/search/label/google

who's suing who

2010-11-02T01:23:00.001-07:00

http://www.informationisbeautiful.net/2010/whos-suing-whom-in-the-telecoms-trade/

Part of me wants to say "ha ha, losers!"
But part of me fears that some day soon I won't be able to create something that sprang wholly from my brain simply because someone thought of it first, and got a patent.

password hashing

2010-10-30T11:13:00.001-07:00

http://www.ciozone.com/index.php/Security/Cracking-14-Character-Complex-Passwords-in-5-Seconds.html

I like this guy

2010-10-09T08:42:00.001-07:00

Historian Jason Scott.
I would buy him a beer any day of the week.
The History of the Software Piracy...
http://vimeo.com/15400820

I like this (possibly unintentional) double entendre:
"Something inside of your pants runs software ... maybe something
inside of your chest runs software"

-JD

Google Java Oracle

2010-10-07T08:37:00.001-07:00

http://www.groklaw.net/article.php?story=20101005114201136

I own Oracle stock and I hadn't considered selling till I saw Google's response to Oracle's Java lawsuit. In the end I'm sure Oracle will continue to make a lot of money, but after reading the response I've lost faith in Oracle's Mojo. Their business leadership comes off as arrogant and bumbling... Makes me wonder...

Hunter

2010-10-03T22:37:00.001-07:00

Recently finished a decent biography on HST, and got a kick out of this:

http://www.ottawacitizen.com/Hunter+Thompson+brutally+honest+Canadian+request/3606508/story.html

Most efficient framing/msg header

2010-09-13T22:37:00.001-07:00

claims that the most efficient header for a payload is just 1 byte. (N
more bytes of Payload). ZeroMQ has definitely been on my list of
technologies to check out...

http://www.imatix.com/articles:whats-wrong-with-amqp

probability

2010-09-13T22:34:00.001-07:00

http://jsteinhardt.wordpress.com/2010/09/13/nobody-understands-probability/

How f'd is my database

2010-08-26T08:42:00.000-07:00

http://howfuckedismydatabase.com/

The Official Machete of Hiking the Amazon.

2010-07-28T18:23:00.000-07:00

It must be good....
http://www.ralphmartindale.co.uk/ralphmartindale/index.html

http://www.walkingtheamazon.com/

Interesting blog post on levenshtein Automata

2010-07-28T17:52:00.000-07:00

http://blog.notdot.net/2010/07/Damn-Cool-Algorithms-Levenshtein-Automata

HAHA MySQL Sucks

2010-07-22T22:37:00.000-07:00

http://www.draconianoverlord.com/2010/07/22/dammit-mysql.html

Major League Eating

2010-07-11T09:54:00.000-07:00

http://www.slate.com/id/2259695/

qsandra

2010-07-11T09:20:00.000-07:00

TODO: Read this to see what their architecture looks like.
http://github.com/ticktock/qsandra

MongoDB == :(

2010-07-08T21:22:00.000-07:00

I have been hearing nothing but bad things about Mongo. Glad I dodged
that NOSQL bullet.
http://www.mikealrogers.com/2010/07/mongodb-performance-durability/

-JD

Java 4 Evar

2010-06-26T10:11:00.000-07:00

http://www.youtube.com/watch?v=KrfpnbGXL70

payload in Tcp Syn packet

2010-06-24T21:16:00.000-07:00

Interesting...
Apparently you can send payload data in the Tcp SYN packet, avoiding
the handshake...

Random Load Balancing

2010-06-21T20:52:00.000-07:00

In short:
For N buckets.
Choose( Lowest( randBucket1, randBucket2) ) is significantly better
than Choose( randBucket1).

http://berezecki.com/?p=22

Gasland

2010-06-21T08:09:00.000-07:00

Should be interesting...
http://www.gaslandthemovie.com/

Mining explorations

2010-06-20T09:50:00.000-07:00

http://www.2drx.com/

Salami Attack!

2010-06-15T08:09:00.000-07:00

Didn't know there was another term for penny-shaving.
http://en.wikipedia.org/wiki/Salami_slicing

Links

2010-06-15T07:49:00.000-07:00

Kind of behind the times on my reading, but here it goes:

This article has an interesting perspective on optimizing algorithms for paging/cache affects. I didn't particularly like his writing style though. I half expected him to say: Yo Dawg, my algorithm is the shiznit!

http://queue.acm.org/detail.cfm?id=1814327

In the comments you find an adult has stepped in and started us on the literature:

"In fact, there is a whole branch of theoretical computer science dedicated to finding algorithms that are optimal once you consider memory paging."

http://en.wikipedia.org/wiki/Cache-oblivious_algorithm

A good article on partition tolerance:

http://www.cloudera.com/blog/2010/04/cap-confusion-problems-with-partition-tolerance/

Kanellos the Greek protest dog.

2010-05-25T16:16:00.000-07:00

http://www.guardian.co.uk/world/gallery/2010/may/06/greece-protest

Branch prediction

2010-05-25T12:38:00.000-07:00

http://igoro.com/archive/fast-and-slow-if-statements-branch-prediction-in-modern-processors/

vcdiff / dmdiff

2010-05-19T12:57:00.001-07:00

Bently-mcllroy compression.

http://code.google.com/p/open-vcdiff/

http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.11.8470&rep=rep1&type=pdf

-JD

fast wait free non blocking hashmap..

2010-05-15T16:38:00.001-07:00

Cliff Click is da man.

http://www.youtube.com/watch?v=WYXgtXWejRM

FLP proof. (Consensus is impossible in asynchronous system with even one failure)

2010-04-23T12:36:00.001-07:00

http://the-paper-trail.org/blog/?p=49

The Last freak show

2010-04-16T20:49:00.001-07:00

http://sideshowworld.com/Tribute-Bruce-Snowden.html

I saw the Jim Rose freak show back when I was in college... And my thought on hearing of the death of the last "Fat Man" is that we can modernize this a bit... I wouldn't pay money to see a Fat Man.. The result of a life time of obsessive over eating:

"Bruce was working on becoming professionally fat. He was fat already but he wasn't one hundred percent there yet. So every now and then he'd fill a mayonnaise jar with a five-pound bag of sugar, add a little water to it to make a solution, and drink in down."

But I would spend money to stare at someone that is the result of a lifetime of drug abuse.

http://www.drugfree.org/portal/drugissue/methresources/faces/index.html

Availability and Partition Tolerance

2010-04-16T13:01:00.000-07:00

A nice summary.

http://pl.atyp.us/wordpress/?p=2521#

Clock synchronization...

2010-03-25T10:26:00.001-07:00

Wikipedia says practical limit is 200us with ntp over lan. And 10ms over Internet.

http://en.wikipedia.org/wiki/Network_Time_Protocol

Precision time protocol is supposed to improve on this.. (also over lan)

http://en.wikipedia.org/wiki/Precision_Time_Protocol

http://ptpd.sourceforge.net/

More Cassandra fan mail, indexes on cassandra.

2010-03-19T10:40:00.001-07:00

http://ria101.wordpress.com/2010/02/22/cassandra-randompartitioner-vs-orderpreservingpartitioner/

http://ria101.wordpress.com/2010/02/24/hbase-vs-cassandra-why-we-moved/

Interesting benchmark papers

2010-03-17T15:33:00.001-07:00

Benchmark comparison of Cassandra, HBase, Sharded MySql, and PNUTS (Yahoo proprietary)

http://www.brianfrankcooper.net/pubs/ycsb.pdf

Led me to this comparison of Batch processing techniques: Parallel SQL / Map Reduce etc.

http://database.cs.brown.edu/sigmod09/benchmarks-sigmod09.pdf

Saving for later investigation

2010-03-17T08:58:00.001-07:00

http://code.google.com/p/korus/

Now this is funny:

2010-03-16T10:51:00.001-07:00

This is implemented in Java, a language I have been told by people who get heavily voted up on this site is a ball and chain.

BigTable is implemented in C++ or Java. Cassandra appears to be most or all Java. But Java and other compiled languages are death for startups and corporations. Error! Error! Does not compute! Why aren't they using Ruby or Lisp?

visual map reduce article

2010-03-15T08:55:00.001-07:00

http://ayende.com/Blog/archive/2010/03/14/map-reduce-ndash-a-visual-explanation.aspx

Cassandra paper

2010-03-14T21:14:00.000-07:00

http://www.cs.cornell.edu/projects/ladis2009/papers/lakshman-ladis2009.pdf

Visual GUide to NoSQL systems

2010-03-14T20:56:00.001-07:00

http://blog.nahurst.com/visual-guide-to-nosql-systems

cassandra at digg

2010-03-11T09:23:00.001-08:00

http://about.digg.com/node/564

Another blog roll

2010-03-10T08:18:00.001-08:00

Another blog to follow...
http://theinvisiblethings.blogspot.com/

McRIb is Back!!!

2010-03-09T20:23:00.001-08:00

My Hero:
http://www.questionsleep.com/mindspill/?p=1196
MCRIB IS BACK, AND I WILL MURDER EVERY LAST MOTHERFUCKER THAT GETS IN
THE WAY OF ME AND THAT SANDWICH BECAUSE WHO KNOWS HOW LONG THIS
RAPTURE WILL LAST?!

Pacific NW abandoned mine locations

2010-03-07T15:34:00.001-08:00

http://images.brainyquote.com/types/WA.mine.html

More cassandra love fest

2010-03-03T14:36:00.001-08:00

https://www.cloudkick.com/blog/2010/mar/02/4_months_with_cassandra/

Amazons Dynamo

2010-03-02T21:46:00.001-08:00

Ok, I'll admit my blog has become as much a list of things _I plan to
read_ as it is things I have read...
http://www.allthingsdistributed.com/2007/10/amazons_dynamo.html

At some point I'll go back and read my own blog.. Imagine that.

Good blog for all things cassandra

2010-03-02T21:41:00.001-08:00

http://spyced.blogspot.com/

BASE vs ACID

2010-03-02T19:05:00.001-08:00

BASE: An ACID alternative
http://queue.acm.org/detail.cfm?id=1394128

Info on DB scalability

2010-02-28T20:25:00.001-08:00

A good talk on DB Scalability and the various approaches.
http://pycon.blip.tv/file/3261223/

Nice summary of NoSQL options

2010-02-25T21:04:00.000-08:00

http://cattell.net/datastores/Datastores.pdf

cassandra at twitter

2010-02-23T13:41:00.000-08:00

http://nosql.mypopescu.com/post/407159447/cassandra-twitter-an-interview-with-ryan-king

Message Queue Comparison

2010-02-21T20:56:00.001-08:00

http://wiki.secondlife.com/wiki/Message_Queue_Evaluation_Notes

cassandra data model

2010-02-19T10:45:00.000-08:00

http://arin.me/blog/wtf-is-a-supercolumn-cassandra-data-model

Scaling Hibernate + postgres

2010-02-17T12:35:00.001-08:00

http://www.redhat.com/f/pdf/jbw/jmlodgenski_940_scaling_hibernate.pdf

jfastlz

2010-02-16T19:11:00.001-08:00

Found it!

A Fast LZ compression in Java

http://code.google.com/p/jfastlz/

port of

http://www.fastlz.org/

MIT License

Postgres + Memcache == Chocolate + Peanut Butter?

2010-02-09T21:17:00.001-08:00

There might be something cool here.. but I can't really tell because I
can't really find any documentation on it.
http://pgfoundry.org/projects/pgmemcache/

Update: here you go:

http://people.FreeBSD.org/~seanc/pgmemcache/pgmemcache.pdf

Not quite as magic as I had hoped..

Dig in:

2010-02-08T21:04:00.000-08:00

http://dbmsmusings.blogspot.com/2009/06/what-is-right-way-to-measure-scale.html

http://dbmsmusings.blogspot.com/

Also need to find a fast compression algo, that is not burdened with
GPL nonsense:
http://www.oberhumer.com/opensource/

Cache effects

2010-02-02T13:07:00.000-08:00

http://igoro.com/archive/gallery-of-processor-cache-effects/

Ok, I admit that lately I have been cribbing a lot of these articles off of Reddit.

Here is my obligatory link Karma:

http://www.reddit.com/r/programming/

Comparison of various Serialization techniques

2010-02-01T18:39:00.001-08:00

http://code.google.com/p/thrift-protobuf-compare/

Comprehension Failure:

2010-02-01T11:37:00.000-08:00

Tomcat documentation comprehension failure:

https://sec1.woopra.com/docs/manager-howto.html

WARNING: even if it doesn't make many sense, and is always a bad idea, calling a Catalina task more than once, badly set Ant tasks depends chains may cause that a task be called more than once in the same Ant run, even if not intended to. A bit of caution should be exercised when you are capturing output from that task, because this could lead to something unexpected:

Vector Clocks again...

2010-01-31T10:08:00.000-08:00

http://blog.basho.com/2010/01/29/why-vector-clocks-are-easy/

This is my second post on Vector clocks, they must be in style! I blame No-SQL.

Bram Cohen is a Douche

2010-01-31T10:04:00.000-08:00

Every time I read/hear this guy speak he strikes me as an incredible DBag. *SOB* He lost his nick on IRC...

http://bramcohen.livejournal.com/72298.html

...
given that I've always had this nick, and that there are only two people named Bram which are recognizable names in open source, and that my name is one of the most well known in open source, I'd like my nick back :-P
...
if nobody does anything about this I'm going to go public about it, freenode does NOT want the publicity of me being pissed off
...
and I hope you realize that you just completely pissed off one of the most well known and respected people in the whole open source community