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How do I do word Stemming or Lemmatization?
I've tried PorterStemmer and Snowball but both don't work on all words, missing some very common ones.
21 Answers
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Entity Framework: There is already an open DataReader associated with this Command
... use of Include:
var results = myContext.Customers
.Include(x => x.Orders)
.Include(x => x.Addresses)
.Include(x => x.PaymentMethods);
If you use the appropriate Includes, you can avoid enabling MARS. But if you miss one, you'll get the error, so enabling MARS is probably th...
How to concatenate strings of a string field in a PostgreSQL 'group by' query?
...e
GROUP BY company_id;
Postgres 9.0 also added the ability to specify an ORDER BY clause in any aggregate expression; otherwise, the order is undefined. So you can now write:
SELECT company_id, string_agg(employee, ', ' ORDER BY employee)
FROM mytable
GROUP BY company_id;
Or indeed:
SELECT str...
How can I reset a react component including all transitively reachable state?
...is:
this.setState(this.getInitialState());
Also (like Ben also said) in order to reset the "browser state" you need to remove that DOM node. Harness the power of the vdom and use a new key prop for that component. The new render will replace that component wholesale.
Reference: https://facebook....
When exactly is it leak safe to use (anonymous) inner classes?
... not, the Activity has an implicit reference to the View it contains.
In order for a View to be created, it must know where to create it and whether it has any children so that it can display. This means that every View has an reference to the Activity (via getContext()). Moreover, every View keep...
django.core.exceptions.ImproperlyConfigured: Error loading MySQLdb module: No module named MySQLdb
...ld be same architecture) and already tried everything like pip and etc. In order fix this problem do following steps:
Download MySql for Python from here
Untar downloaded file. In terminal window do following: tar xvfz downloade.tar.
cd /to untared directory
Run sudo python setup.py install
If you...
Order a MySQL table by two columns
...efault sorting is ascending, you need to add the keyword DESC to both your orders:
ORDER BY article_rating DESC, article_time DESC
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How to get next/previous record in MySQL?
...o cemkalyoncu's solution:
next record:
SELECT * FROM foo WHERE id > 4 ORDER BY id LIMIT 1;
previous record:
SELECT * FROM foo WHERE id < 4 ORDER BY id DESC LIMIT 1;
edit: Since this answer has been getting a few upvotes lately, I really want to stress the comment I made earlier about un...
How to fix 'sudo: no tty present and no askpass program specified' error?
...k for a password. For example in my system x11-ssh-askpass works fine.
In order to do that you have to specify what program to use, either with the environment variable SUDO_ASKPASS or in the sudo.conf file (see man sudo for details).
You can force sudo to use the askpass program by using the opti...
ActiveRecord: size vs count
...m?
That you might be hitting the DB twice if you don't do it in the right order (e.g. if you render the number of elements in a table on top of the rendered table, there will be effectively 2 calls sent to the DB).
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