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How Do I Fetch All Old Items on an RSS Feed?

... RSS/Atom feeds does not allow for historic information to be retrieved. It is up to the publisher of the feed to provide it if they want such as in the blogger or wordpress examples you gave above. The only reason that Google Reader has more inform...
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Why does one hot encoding improve machine learning performance?

...e. The three possible values of w×x are 0, w and 2×w. Either these three all lead to the same decision (they're all < b or ≥b) or "UK" and "French" lead to the same decision, or "French" and "US" give the same decision. There's no possibility for the model to learn that "UK" and "US" should b...
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What is a Proxy in Doctrine 2?

I just finished reading all the Doctrine 2 documentation, I started my own sandbox, I understood most of the principes, but there is still a question and I couldn't find any complete explanation in the doc. ...
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Proper Linq where clauses

...collection where as in the first one, it's applying the first predicate to all items first and the result (which is narrowed down at this point) is used for the second predicate and so on. The results get narrowed down every pass but still it involves multiple passes. Also the chaining (first metho...
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Ternary operator is twice as slow as an if-else block?

...several additional registers available, and each register is 64-bits. This allows the X64 JIT to perform the inner loop entirely using registers aside from loading i from the array, while the X86 JIT places several stack operations (memory access) in the loop. value is a 64-bit integer, which requir...
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Format a date using the new date time API

...in JavaScript or DateTime in Perl) are based on the concept of a universal all-purpose unique temporal type (in German there is the poetic expression "eierlegende Wollmilchsau"). In this design there cannot be an unsupported field. But the price is high: Many time problems cannot be adequately handl...
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Simplest way to do a recursive self-join?

...e ultimate ancestors in your chain, change it as appropriate UNION ALL SELECT m.* FROM mytable m JOIN q ON m.parentID = q.PersonID ) SELECT * FROM q By adding the ordering condition, you can preserve the tree order: WITH q AS ...
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How can I select every other line with multiple cursors in Sublime Text?

...t already enabled, enable them: Alt+R Type in the expression .*\n.*\n Find all: Alt+Enter Press left arrow to get rid of the selections, leaving just the cursors: ← You now have a cursor at the start of every odd-numbered line. If you wanted even-numbered lines, press down: ↓ Depending on the fi...
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How to change max_allowed_packet size

...ading files larger than approx 1MB I get an error Packets larger than max_allowed_packet are not allowed. 12 Answers ...
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Why should I use core.autocrlf=true in Git?

...y specific reasons to set autocrlf to true are: avoid git status showing all your files as modified because of the automatic EOL conversion done when cloning a Unix-based EOL Git repo to a Windows one (see issue 83 for instance) and your coding tools somehow depends on a native EOL style being pre...