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How to compute the similarity between two text documents?
... package, computing cosine similarities is as easy as
from sklearn.feature_extraction.text import TfidfVectorizer
documents = [open(f) for f in text_files]
tfidf = TfidfVectorizer().fit_transform(documents)
# no need to normalize, since Vectorizer will return normalized tf-idf
pairwise_similarity ...
What exactly does git's “rebase --preserve-merges” do (and why?)
...B --not $(git merge-base --all A B)
Replay the commits:
Create a branch B_new, on which to replay our commits.
Switch to B_new (i.e. "git checkout B_new")
Proceeding parents-before-children (--topo-order), replay each commit c in C on top of B_new:
If it's a non-merge commit, cherry-pick a...
java.sql.SQLException: Incorrect string value: '\xF0\x9F\x91\xBD\xF0\x9F…'
...se 4-byte UTF8 with Connector/J configure the MySQL server with
character_set_server=utf8mb4. Connector/J will then use that setting
as long as characterEncoding has not been set in the connection
string. This is equivalent to autodetection of the character set.
Adjust your columns and datab...
Make a URL-encoded POST request using `http.NewRequest(…)`
...alues{}
data.Set("name", "foo")
data.Set("surname", "bar")
u, _ := url.ParseRequestURI(apiUrl)
u.Path = resource
urlStr := u.String() // "https://api.com/user/"
client := &http.Client{}
r, _ := http.NewRequest(http.MethodPost, urlStr, strings.NewReader(data.Encode()...
Why unsigned integer is not available in PostgreSQL?
...l.org/docs/9.4/static/sql-createdomain.html
CREATE DOMAIN name [ AS ] data_type
[ COLLATE collation ]
[ DEFAULT expression ]
[ constraint [ ... ] ]
where constraint is:
[ CONSTRAINT constraint_name ]
{ NOT NULL | NULL | CHECK (expression) }
Domain is like a type but with an addition...
Select unique or distinct values from a list in UNIX shell script
...ile)}"
tar
more than one word
gz
java
class
Or you can use AWK:
% awk '!_[$0]++' infile
tar
more than one word
gz
java
class
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...
How to count certain elements in array?
...
for laughs: alert(eval('('+my_array.join('==2)+(')+'==2)')) jsfiddle.net/gaby_de_wilde/gujbmych
– user40521
Jan 7 '16 at 19:29
34
...
Should one call .close() on HttpServletResponse.getOutputStream()/.getWriter()?
...f it not closed.
public void close() throws IOException
{
if (_closed)
return;
if (!isIncluding() && !_generator.isCommitted())
commitResponse(HttpGenerator.LAST);
else
flushResponse();
super.close();
}
Also as ...
Instance variables vs. class variables in Python
...test:
import timeit
setup='''
XGLOBAL= 5
class A:
xclass = 5
def __init__(self):
self.xinstance = 5
def f1(self):
xlocal = 5
x = self.xinstance
def f2(self):
xlocal = 5
x = A.xclass
def f3(self):
xlocal = 5
x = XGLOBAL
...
Determine Whether Two Date Ranges Overlap
...
Proof:
Let ConditionA Mean that DateRange A Completely After DateRange B
_ |---- DateRange A ------|
|---Date Range B -----| _
(True if StartA > EndB)
Let ConditionB Mean that DateRange A is Completely Before DateRange B
|---- DateRange A ...