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Tag: fastest

Regular expression – what is the fastest way to determine the full URL from a relative URL (given basic URL)

I am currently using the module URI::URL to generate a complete URL from a relative URL; however, it does not run as fast as I hoped. Does anyone know of another approach possible Will be faster?

October 18, 2021By Simo Regexp Basic, complete, determination, expression, fastest, given, method, regular, relative, URL, whatLeave a Comment

What is the fastest way to find a big table in radius mysql (latitude longitude)

Currently I have several tables with 100k rows. I am trying to find the following data.

SELECT
* , SQRT(POW(69.1 * (latitude-‘49.1044302’), 2) + POW(69.1 * (‘-122.801094’-longitude) * COS(lat

October 4, 2021By Simo Mysql fastest, large, latitude, longitude, method, mysql, radius, search, table, whatLeave a Comment

What is the fastest Java collection of a lot of DTO?

I am returning a large number of collections from a DTO object, and would like to know if anyone can point me in the right direction. Any type of collection is fine, but I don’t know which one is b

October 3, 2021By Simo Search Engines collection, DTO, fastest, Java, large, retrieved, whatLeave a Comment

Performance – What is the fastest way to apply functions on each line of matrix?

I have searched so far and I know there are several methods (1, 2, 3, 4) I have used the following code so far:

Fv_calc(:,2) = arrayfun(@(n) MaxPositiveRoot2DegreePolynomial(QuadraticCoeffici

October 2, 2021By Simo Performance application, each, fastest, function, line, Matrix, method, performance, whatLeave a Comment

Performance – What is the fastest way to expand matrix in matlab?

How to turn the matrix:

[ 0.12 0.23 0.34 ;
0.45 0.56 0.67 ;
0.78 0.89 0.90 ] Enter a’coordinates’ matrix with a bunch of rows?

[ 1 1 0.12 ;
1 2 0.23 ;
1 3 0.34 ;
2 1 0.45 ;
2 2 0.

October 2, 2021By Simo Performance Expand, fastest, Matlab, Matrix, method, performance, whatLeave a Comment

(Heavy pound) fastest Hadoop fully distributed operation

1. Prepare the virtual machine Clone 3 linux virtual machines, only the machine with centos minimal mode installed

Network allocation table

Host name

IP address

hadoop1

<

August 22, 2021By Simo Hadoop complete, distributed, fastest, Hadoop, Heavy pound, runLeave a Comment
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