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How does the Amazon Recommendation feature work?
...the data the better the model - and Amazon is BIG. I can only imagine how fun it is to play with models with that much data in a commerce driven site. Now many of those algorithms (like the predictor that started out in commerce server) have moved on to live directly within Microsoft SQL.
The fou...
Scaling Node.js
... with hiredis.
PING: 20000 ops 46189.38 ops/sec 1/4/1.082
SET: 20000 ops 41237.11 ops/sec 0/6/1.210
GET: 20000 ops 39682.54 ops/sec 1/7/1.257
INCR: 20000 ops 40080.16 ops/sec 0/8/1.242
LPUSH: 20000 ops 41152.26 ops/sec 0/3/1.212
LRANGE (10 elements): 20000 ops 36563.07 ops/sec 1/8/1.363
LRANGE (100...
Showing commits made directly to a branch, ignoring merges in Git
...
123
--no-merges
Both parents have equal weight in many contexts in git. If you've always been con...
Best way to use Google's hosted jQuery, but fall back to my hosted library on Google fail
...crawford.com/jquery-1.3.2.min.js"><\/script>');
}
window.onload = function() {
$('#test').css({'border':'2px solid #f00'});
};
</script>
</head>
<body>
<p id="test">hello jQuery</p>
</body>
</html>
The way it works is to use the google obj...
How to copy from CSV file to PostgreSQL table with headers in CSV file?
... to automate the creation of the ~100 columns, and COPY does not have this functionality, as of PG 9.3 at least.
– Daniel Vérité
Jul 28 '14 at 15:00
2
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MySQL - why not index every field?
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123
Indexes take up space in memory (RAM); Too many or too large of indexes and the DB is going to...
How do I add custom field to Python log format string?
...getLogger('Test')
if __name__=='__main__':
logger.logMessage('ERROR','123','This is an error')
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How to debug stream().map(…) with lambda expressions?
...ring[] args) {
List<Integer> naturals = Arrays.asList(3247,92837,123);
List<Integer> result =
naturals.stream()
.map(DebugLambda::timesTwo)
.collect(toList());
}
This might make it easier to see what's going on while you're debugging. In addition...
What is the http-header “X-XSS-Protection”?
So I've been toying around with HTTP for fun in telnet now (i.e. just typing in telnet google.com 80 and putting in random GETs and POSTs with different headers and the like) but I've come across something that google.com transmits in it's headers that I don't know.
...
Explanation of JSONB introduced by PostgreSQL
...esentation, why jsonb doesn't support this? UPDATE test SET data->'a' = 123 WHERE id = 1; from CREATE TABLE test(id SERIAL PRIMARY KEY, data JSONB);
– Kokizzu
Nov 28 '14 at 4:46
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