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Answer: Use different Python version with virtualenv

qiumingming7@gmail.com — Mon, 17 Aug 2020 13:52:47 +0000

answer re: Use different Python version with virtualenv

Jul 2 '12

These are the steps you can follow when you are on a shared hosting environment and need to install & compile Python from source and then create venv from your Python version. For Python 2.7.9. you would do something along these lines:

mkdir ~/src
wget http://www.python.org/ftp/python/2.7.9/Python-2.7.9.tgz
tar -zxvf Python-2.7.9.tgz
cd

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Answer: Trouble with dependent types in templates

qiumingming7@gmail.com — Tue, 26 May 2020 21:51:18 +0000

answer re: Trouble with dependent types in templates

May 28 '10

Well, the warning says:

dependent name is not a type. prefix with 'typename' to indicate a type

The dependent name (that is, the iterator in std::set<result_t>::iterator) is not a type. You need to prefix it with typename to indicate a type:

typename std::set<result_t>::iterator

So, your declaration should be:

template<class

…

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Answer: gensim word2vec: Find number of words in vocabulary

qiumingming7@gmail.com — Mon, 25 May 2020 21:38:35 +0000

answer re: gensim word2vec: Find number of words in vocabulary

Feb 26 '16

The vocabulary is in the vocab field of the Word2Vec model's wv property, as a dictionary, with the keys being each token (word). So it's just the usual Python for getting a dictionary's length:

len(w2v_model.wv.vocab)

(In older gensim versions before 0.13, vocab appeared directly on the model. So you would…

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Pandas dataframe 'merge' method

qiumingming7@gmail.com — Sun, 24 May 2020 09:44:51 +0000

https://chrisalbon.com/python/data_wrangling/pandas_join_merge_dataframe/

Answer: What is the difference between “::” “.” and “->” in c++ [duplicate]

qiumingming7@gmail.com — Fri, 22 May 2020 13:24:11 +0000

answer re: What is the difference between "::" "." and "->" in c++

Aug 10 '12

156

1.-> for accessing object member variables and methods via pointer to object

Foo *foo = new Foo();
foo->member_var = 10;
foo->member_func();

2.. for accessing object member variables and methods via object instance

Foo foo;
foo.member_var = 10;
foo.member_func();

3.:: for accessing static variables and methods of a…

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Extended Slices in Python 2.3

qiumingming7@gmail.com — Thu, 21 May 2020 23:04:01 +0000

https://docs.python.org/2.3/whatsnew/section-slices.html

Answer: What are co-occurance matrixes and how are they used in NLP?

qiumingming7@gmail.com — Thu, 21 May 2020 22:27:26 +0000

answer re: What are co-occurance matrixes and how are they used in NLP?

Jun 6 '14

What is a co-occurrence matrix ?

Generally speaking, a co-occurrence matrix will have specific entities in rows (ER) and columns (EC). The purpose of this matrix is to present the number of times each ER appears in the same context as each EC As a consequence, in order to use…

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log-linear vs log-bilinear

qiumingming7@gmail.com — Thu, 21 May 2020 17:46:54 +0000

https://stats.stackexchange.com/a/177483/229895

Answer: How do I generate a random vector in TensorFlow and maintain it for further use?

qiumingming7@gmail.com — Tue, 19 May 2020 09:11:46 +0000

answer re: How do I generate a random vector in TensorFlow and maintain it for further use?

Jan 19 '16

The current version of your code will randomly generate a new value for rand_var_1 and rand_var_2 on each call to sess.run() (although since you set the seed to 0, they will have the same value within a single call to sess.run()).

If you want to retain the value of…

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Answer: What's the difference between tf.Session() and tf.InteractiveSession()?

qiumingming7@gmail.com — Sun, 17 May 2020 10:35:43 +0000

answer re: What's the difference between tf.Session() and tf.InteractiveSession()?

Jan 22 '17

Mainly taken from official documentation:

The only difference with a regular Session is that an InteractiveSession installs itself as the default session on construction. The methods Tensor.eval() and Operation.run() will use that session to run ops.

This allows to use interactive context, like shell, as it avoids having to pass…

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