Monday, September 30, 2013

Issue 13555: cPickle MemoryError when loading large file (while pickle works) - Python tracker

Issue 13555: cPickle MemoryError when loading large file (while pickle works) - Python tracker: "Well, replace cPickle by pickle and it works.

cPickle makes some direct call to malloc()/realloc()/free(), contrarily to pickle which uses pymalloc. This could lead to heap fragmentation."

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divisi2/divisi2/fileIO.py at master · commonsense/divisi2 · GitHub

divisi2/divisi2/fileIO.py at master · commonsense/divisi2 · GitHub: "# If you run out of memory reading a gzip'ed file, un-gzip it first."

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lshash 0.0.4dev : Python Package Index

lshash 0.0.4dev : Python Package Index: "LSHash depends on the following libraries:

numpy
redis (if persistency through Redis is needed)
bitarray (if hamming distance is used as distance function)
"

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Baby Steps - Algebra — Theano 0.6rc3 documentation

Baby Steps - Algebra — Theano 0.6rc3 documentation: ">>> import theano.tensor as T
>>> from theano import function
>>> x = T.dscalar('x')
>>> y = T.dscalar('y')
>>> z = x + y
>>> f = function([x, y], z)"

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Parallel | WestGrid

Parallel | WestGrid: "The GPUs are NVIDIA Tesla M2070s, each with about 5.5 GB of memory and what is known as Compute Capability 2.0 "

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Parallel | WestGrid

Parallel | WestGrid: "60 special 12-core nodes that have 3 general-purpose GPUs each."

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GPU Computation | WestGrid

GPU Computation | WestGrid:

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Saturday, September 28, 2013

I²S - Wikipedia, the free encyclopedia

I²S - Wikipedia, the free encyclopedia: "I2S, also known as Inter-IC Sound, Integrated Interchip Sound, or IIS, is an electrical serial bus interface standard used for connecting digital audio devices together. It is used to communicate PCM audio data between integrated circuits in an electronic device. The I2S bus separates clock and serial data signals, resulting in a lower jitter than is typical of communications systems that recover the clock from the data stream."

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GameFAQs: The Hitchhiker's Guide to the Galaxy (APL2) FAQ/Walkthrough by Rogue Nine

GameFAQs: The Hitchhiker's Guide to the Galaxy (APL2) FAQ/Walkthrough by Rogue Nine:

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Friday, September 27, 2013

▶ Lee Burridge - Robot Heart - Burning Man 2013 - YouTube

▶ Lee Burridge - Robot Heart - Burning Man 2013 - YouTube: ""

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How Google Converted Language Translation Into a Problem of Vector Space Mathematics | MIT Technology Review

How Google Converted Language Translation Into a Problem of Vector Space Mathematics | MIT Technology Review: "Having identified this mapping, it is then a simple matter to apply it to the bigger language spaces. Mikolov and co say it works remarkably well. “Despite its simplicity, our method is surprisingly effective: we can achieve almost 90% precision@5 for translation of words between English and Spanish,” they say."

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Thursday, September 26, 2013

Lessons from Burning Man – Part 1 | N-DEO::Architecture

Lessons from Burning Man – Part 1 | N-DEO::Architecture: "The result of Toby and Michael’s efforts was the most comfortable environment I experienced on the Playa during mid day, with the exception of actually getting sprayed with a pressure washer from 10 yards away but that really isn’t practical in the desert."

Tuesday, September 24, 2013

weka - Making predictions

weka - Making predictions: "java weka.classifiers.trees.J48 -T unclassified.arff -l j48.model -p 0"

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weka - Making predictions

weka - Making predictions: "Classifiers
After a model has been saved, one can make predictions for a test set, whether that set contains valid class values or not. The output will contain both the actual and predicted class. (Note that if the test class contains simply '?' for the class label for each instance, the "actual" class label for each instance will not contain useful information, but the predicted class label will.) The "-T " command-line switch specifies the dataset of instances whose classes are to be predicted, while the "-p " switch allows the user to write out a range of attributes (examples: "1-2" for the first and second attributes, or "0" for no attributes). Sample command line:

java weka.classifiers.trees.J48 -T unclassified.arff -l j48.model -p 0"

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weka - Saving and loading models

weka - Saving and loading models: "You save a trained classifier with the -d option (dumping), e.g.:
java weka.classifiers.trees.J48 -t /some/where/train.arff -d /other/place/j48.model
And you can load it with -l and use it on a test set, e.g.:
java weka.classifiers.trees.J48 -l /other/place/j48.model -T /some/where/test.arff"

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Monday, September 23, 2013

Mark Whittle: Big Bang Acoustics

Mark Whittle: Big Bang Acoustics: "It's quite a shock to find out that the sound spectrum of the early Universe is a bit like a vibrating object – it has a fundamental with harmonics!"

Sunday, September 22, 2013

Friday, September 20, 2013

search - Ukkonen's suffix tree algorithm in plain English? - Stack Overflow

search - Ukkonen's suffix tree algorithm in plain English? - Stack Overflow: "The algorithm works in steps, from left to right. There is one step for every character of the string. Each step might involve more than one individual operation, but we will see (see the final observations at the end) that the total number of operations is O(n)."

'via Blog this'



using ascii art in sublimetext. would be easy in emacs.

▶ Burning Man 2013 Time-Lapse: Seen Miles Away From A Mountain Top - YouTube

▶ Burning Man 2013 Time-Lapse: Seen Miles Away From A Mountain Top - YouTube: ""

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Thursday, September 19, 2013

High Scalability - High Scalability - If You're Programming a Cell Phone Like a Server You're Doing it Wrong

High Scalability - High Scalability - If You're Programming a Cell Phone Like a Server You're Doing it Wrong: "Power on a cell phone is like water in a desert. It’s the very stuff of life. If you take the same naive programming techniques you learned when programming on a server in a datacenter your cell phone will die of thirst."

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Wednesday, September 18, 2013

UK, Europe & Rest of World (RoW) | Our People | SMRU Marine

UK, Europe & Rest of World (RoW) | Our People | SMRU Marine:

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JASCO Research - Careers

JASCO Research - Careers: "JASCO always welcomes unsolicited resumés from qualified individuals. We are particularly interested in individuals with experience in marine biology, oceanography, physics, acoustics, optics, engineering or computer programming. Resumés from students seeking co-op terms or internships are welcome.

"

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swissmiss | Ostrich

swissmiss | Ostrich:

Plumbr – Why we dropped Eclipse in favour of IntelliJ

Plumbr – Why we dropped Eclipse in favour of IntelliJ: "For years, our friend Anton Arhipov has tried to convince us. He kept failing until he demoed something as simple as ALT+ENTER. Based on the documentation it is not doing much – just using the suggested quick fix. But this feature is backed by something that makes many other IntelliJ features so much more pleasing to use.

"

'via Blog this'

3D File Diffs

3D File Diffs: "Back in April, we introduced the 3D file viewer. Today we're improving this by displaying diffs of STL files on GitHub."

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The $25 FPGA | Dr Dobb's

The $25 FPGA | Dr Dobb's: "However, Lattice seems to have taken this idea to the extreme. The iCEstick evaluation kit looks like a naked USB memory stick. Onboard is a fairly small FPGA, a USB interface chip, an IrDA transceiver, an oscillator, and a 32-megabit flash memory. There are also 5 LEDs, 16 digital I/O pins, and a PMOD port that can connect to many off-the-shelf modules from Digilent and a few other vendors."

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A Pretty Good Work Day - Amir Rachum

A Pretty Good Work Day - Amir Rachum: "But our group leader (actually, his replacement) insisted that we give their way a chance. Not because their suggestion was good, but because it wasn’t just bad, it was dumber than a second coat of paint. It was so bad that it could not possibly work out for anyone. And that’s was he was counting on."

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Tuesday, September 17, 2013

Neyman-Pearson Lemma | STAT 414 / STAT 415

Neyman-Pearson Lemma | STAT 414 / STAT 415:

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Don't use Hadoop - your data isn't that big

Don't use Hadoop - your data isn't that big: "Hadoop << SQL, Python Scripts
In terms of expressing your computations, Hadoop is strictly inferior to SQL. There is no computation you can write in Hadoop which you cannot write more easily in either SQL, or with a simple Python script that scans your files."

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Five years ago, Stack Overflow launched. Then, a miracle occurred. « Blog – Stack Exchange

Five years ago, Stack Overflow launched. Then, a miracle occurred. « Blog – Stack Exchange: "Because here’s the crazy secret about gamification:  In the history of the world, gamification has never gotten a single person do anything they didn’t already basically like to do."

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Thursday, September 12, 2013

python - Check if a given key already exists in a dictionary - Stack Overflow

python - Check if a given key already exists in a dictionary - Stack Overflow: "if 'key1' in dict.keys():
print "blah"
else:
print "boo""

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How can I randomize the lines in a file using a standard tools on Redhat Linux - Stack Overflow

How can I randomize the lines in a file using a standard tools on Redhat Linux - Stack Overflow: "sort --random-sort"

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Prettt-tty, pretty, pretty good!: Actors are overly nondeterminstic

Prettt-tty, pretty, pretty good!: Actors are overly nondeterminstic: "Actors are overly nondeterminstic
Actors are useful as a low-level concurrency primitive, but as has been written elsewhere, they aren't the best high level programming model for writing concurrent programs."

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rabexc: I/O performance in Python

rabexc: I/O performance in Python: "This file can get large, in the order of several hundreds of megabytes. The python code is trivial, given that each record is exactly the same size, but what is the fastest way to access and use that index file?"

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Eloquent JavaScript Second Edition

Eloquent JavaScript Second Edition: "Eloquent JavaScript is an open, freely available textbook on JavaScript and computer programming in general. It was written in 2007 and has, since then, taught thousands of people, from Kashmir to Louisiana to Minas Gerais, to program."

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Should You Commit Your Dependencies?

Should You Commit Your Dependencies?: "There are a few cases where you should never commit dependencies. When your code is a third-party component, when this code is registered as a dependency in other applications, then committing dependencies clearly doesn't work. Some dependencies require compilation, they are not portable. In this case, you can't commit them. Some dependencies, once installed, have very large elements. GitHub triggers a warning for files larger than 50MB. If you depend on a large .jar for instance, you're out of luck."

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Game Programming Patterns / Optimizing Patterns / Dirty Flag

Game Programming Patterns / Optimizing Patterns / Dirty Flag: "Avoid unnecessary work by deferring it until the result is needed."

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Listening to Whisperers: Perfomance, ASMR Community and Fetish on YouTube | Sounding Out!

Listening to Whisperers: Perfomance, ASMR Community and Fetish on YouTube | Sounding Out!:

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Two Scoops of Django: Best Practices for Django 1.5

Two Scoops of Django: Best Practices for Django 1.5: "We’ll introduce you to various tips, tricks, patterns, code snippets, and techniques that we’ve picked up over the years.

This book is great for:

Beginning Django developers.
Developers with intermediate to advanced knowledge of Django who want to improve their Django projects."

'via Blog this'

Wednesday, September 11, 2013

How even agile development couldn't keep this mega-project on track | ZDNet

How even agile development couldn't keep this mega-project on track | ZDNet: "Touted as the world's biggest agile software project, the £2.4bn Universal Credit programme was supposed to showcase how the software methodology could be used on a grand scale.

But two years after the project — intended to create an IT system that would underpin a major reform the UK welfare system — got under way, crack began to show as it ran over time and over budget.

According to a report by the government watchdog the NAO published last week, the UK government has had to write off at least £34m on the programme and delay the national launch for the project. The department in charge of the project, the Department for Work and Pensions (DWP), can't guarantee the remainder of the £303m it has spent on the project so far will offer "good value" it said.

"

'via Blog this'

Tuesday, September 10, 2013

Sunday, September 08, 2013

Ibiza Global Radio · Official Site | 24H Of The Best Electronic Music From Ibiza

Ibiza Global Radio · Official Site | 24H Of The Best Electronic Music From Ibiza:

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beta.sewreview.com - Blog and News: Fiber Optic Fabric

beta.sewreview.com - Blog and News: Fiber Optic Fabric: "This technology allows to wave plastic optical fibers alongside synthetic fibers, forming a luminous fabric. The luminous fabric is similar to a synthetic fabric (it can be sewn, hand washed,…), except that it can emit light when connected to a specific electronic module. This electronic module can be powered either by a disposable or rechargeable battery, or by a small mains transformer (for non wearable items).

Unlike standard optical fibers, the fiber optic fabric emits light along the full lenght of the fibers.


Friday, September 06, 2013

Orcinus | WestGrid

Orcinus | WestGrid: "Phase One of the Orcinus cluster is comprised of 12 c7000 chassis, each containing 16 dual-density BL2x220 Generation 5 blades. There are 2 compute servers per blade (an A node, and a B node). Every node has 2 sockets, each containing an Intel Xeon E5450 quad-core processor, running at 3.0GHz"

'via Blog this'

Money Man Feeds Burning Man. Oy - Bloomberg

Money Man Feeds Burning Man. Oy - Bloomberg: ""We're airlifting in the challah again," said Steven Gluckstern, as he stood chatting recently with a few people. "Enough for 2,500 people," he added casually, taking a sip of his cocktail."

'via Blog this'

Tuesday, September 03, 2013

▶ Mano Le Tough - Primative People (Tale Of Us Remix) - YouTube

▶ Mano Le Tough - Primative People (Tale Of Us Remix) - YouTube: ""

'via Blog this'

▶ BURNING MAN PREPPERS 2013 @ THE WALTER DOME - YouTube

▶ BURNING MAN PREPPERS 2013 @ THE WALTER DOME - YouTube: ""

'via Blog this'

Passion M1

Passion M1: " open plan living/kitchen/dining area
-  bedroom or sauna with extra sleeping area for 2
-  1 bathroom with toilet
-  large sheltered terrace
-  2 fold-out beds for 2
-  facade with stone cladding
-  fully finished inside and outside
-  ventilation and heating-cooling
-  kitchen, furniture & home appliances included
-  tripple class windows
-  smart home system
-  highly energy efficient
-  eco-friendly materials"


Monday, September 02, 2013

ELAN description | The Language Archive

ELAN description | The Language Archive: "With ELAN a user can add an unlimited number of annotations to audio and/or video streams. An annotation can be a sentence, word or gloss, a comment, translation or a description of any feature observed in the media. Annotations can be created on multiple layers, called tiers. Tiers can be hierarchically interconnected. An annotation can either be time-aligned to the media or it can refer to other existing annotations. The textual content of annotations is always in Unicode and the transcription is stored in an XML format.
ELAN provides several different views on the annotations, each view is connected and synchronized to the media playhead."

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