Questions tagged [data-mining]
Data mining is the process of analyzing large amounts of data in order to find patterns and commonalities.
44 questions
8 votes
1 answer
266 views
TF-IDF Implementation in Java
I have tried following the formulas for Term frequency–Inverse document frequency (TF-IDF) calculation and Cosine similarity calculation, and translated it into code. The results I get seems to be ...
- 81
4 votes
1 answer
215 views
FPGrowth Algorithm Implementation
This is my implementation of the FPGrowth algorithm where, as an optimisation, I avoid re-creating the tree at each extension of the prefix, while I use a view representation that I think would be ...
- 113
1 vote
1 answer
330 views
Better way to create a contingency table with pandas for film genres from a Film DataFrame
From a public dataset available on film rating I created a contingency table as follow. Honestly I don't like all these "for-loops" I think the quality of the code can be definitely improved ...
- 599
2 votes
0 answers
204 views
producer-consumer Pipeline problem implementation in asyncio
I wrote this code to make a non-blocking manager along with pipeline operations using asyncio, my main concern is to catch received items producer, and when the received operation is complete. I want ...
- 21
2 votes
2 answers
163 views
Data mining in Java: finding undrawn lottery rows
(See the next iteration.) Introduction Suppose Evil Lottery Inc is interested in not paying millions of dollars back to players. They gather the drawn lottery rows first, after which they mine rows ...
- 32.3k
2 votes
1 answer
525 views
Analyzing patient treatment data using Pandas
I work in the population health industry and get contracts from commercial companies to conduct research on their products. This is the general code to identify target patient groups from a provincial ...
- 225
2 votes
2 answers
328 views
Python program to rank based on the frequency of names that appears in text files
I've written a python program to rank the names that appear in the file(s) based on their frequency. In other words, there are multiple files and want to rank the frequency of the names that appears ...
- 163
5 votes
1 answer
6k views
k-means using numpy
This is k-means implementation using Python (numpy). I believe there is room for improvement when it comes to computing distances (given I'm using a list comprehension, maybe I could also pack it in a ...
- 381