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Why does one hot encoding improve machine learning performance?

...ill get confused without one-hot encoding. With the naive encoding and Euclidean distance, the distance between French and US is 1. The distance between US and UK is 2. But with the one-hot encoding, the pairwise distances between [1, 0, 0], [0, 1, 0] and [0, 0, 1] are all equal to √2. This is no...
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Nullable ToString()

... I had no idea this was the behavior. I definitely would have thought that any construct which returns true for (x == null) would also throw a NullReferenceException if you call x.ToString(). – Dan Bryant ...
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Specifying Maven's local repository location as a CLI parameter

... The local repository must be an absolute path, maven.apache.org/guides/mini/guide-configuring-maven.html. – luka5z Dec 28 '16 at 16:21 3 ...
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What is meant by Ems? (Android TextView)

... android:ems or setEms(n) sets the width of a TextView to fit a text of n 'M' letters regardless of the actual text extension and text size. See wikipedia Em unit but only when the layout_width is set to "wrap_content". Other layo...
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How to escape a pipe char in a code statement in a markdown table?

... As of March 2019, in Gitlab Wikis, you still need to use "|" inside the markup code. – knb Mar 22 '19 at 13:52 ...
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Get Unix Epoch Time in Swift

...you have to account for networking delays and check for connectivity. I decided to just use Foundation... – Chase Roberts Dec 9 '16 at 20:23 ...
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Oracle: If Table Exists

...nd most efficient way is to catch the "table not found" exception: this avoids the overhead of checking if the table exists twice; and doesn't suffer from the problem that if the DROP fails for some other reason (that might be important) the exception is still raised to the caller: BEGIN EXECUTE...
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JavaScript Date Object Comparison

... @RobG You know, you are absolutely right. =) I was writing a library and did a test "just cuz." In real software it makes no difference whatsoever. – Nick Zalutskiy Jan 15 '13 at 5:12 ...
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How can I get WebStorm to recognize Jasmine methods?

... You can use predefined JS library stubs in Webstorm/PHPStorm/Idea Open File > Settings... Select Languages & Frameworks > JavaScript > Libraries Click on Download... Swich to TypeScript community stubs Find karma-jasmine (originally under the name jasmine) (If this ...
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Contributing to project on github, how to “rebase my pull request on top of master”

... var channelOptions = { tags: "".split(" "), id: "1" }; initTagRenderer("".split(" "), "".split(" "), channelOptions); StackExchange.using("externalEditor", function() { // Have to fire editor after snippets, if snippets enabled...