Archives | DataScienceTribe

2022

05

15

How to plot mulitiple subplots of barplots using seaborn

Sometimes we want to plot multiple barplots in subplots, this examples shows a nice way to do it. load sample dataimport

2022-05-15 data science

04

10

How to use SentenceTransformer, a powerful and simple text embedding method based on transformer methods

SentenceTransfomer is a Python framework developed based on Sentence-BERT that can generate high-quality embedding vecto

2022-04-10 machine learning

transformer BERT SentenceTransfomer embedding

03

20

What is Web3? Its relationship with Web1, Web2 and metaverse

The Internet has so far been in two phases: Web 1.0 and Web 2.0. The next phase, naturally, is Web 3.0 (Web3 for short).

2022-03-20 Metaverse

Web3

19

Good use of regular expression, remove spaces between punctuation and words, normalize texts automatically

Regular expression (shortened as regex) is very powerful way to improve efficiency and change formats for us.Here are ex

2022-03-19 data science

python regex

13

Ten important Python libraries that Data Scientist must know

Good libraries are like useful toolbox, and learning these libraries can make you more productive, whether you’re a novi

2022-03-13 data science

python

02

22

Convert arbitrary date to the date of Monday or Sundy within the same week in Python

It is common practice to convert date to the week number for normalization or feature preprocessing. While this is prett

2022-02-22 data science

python

01

27

A transformer example to maintain same feature order and add missing features back for feature engineering

For data science projects, one important steps in feature engineering is to make sure the order of feature columns durin

2022-01-27 data science

pipeline transformer scikit-learn

15

Convert short texts to numeric vectors with Character ngram tf-idf vectorizer using scikit learn in Python

When apply machine learning algorithms, to handel words or short texts, we usually need to get their numeric embedding v

2022-01-15 machine learning

text mining natural language processing

2021

12

29

Use Python to solve Linear Programming optimization problem

Let’s first define the standard format of linear programming problem,in which we will minimize the following equation$$

2021-12-29 optimization

linear programming optimization

26

Multi-class classification using simple deep learning structure in Pytorch with iris dataset

As one can see from the following example, it is very easy to apply deep learning structure in Pytorchto perform multi-c

2021-12-26 machine learning

multi-class classification pytorch

10

24

How to auto run python jobs using crontab

In ubuntu Linux，many times we need to run certain tasks regularly, such as every 10 minutes, at 2 o’clock in the morning

2021-10-24 data engineering

crontab

01

How to serve the Flask app with nginx as the reverse proxy

We are going to build a simple and smooth process using the following steps: if you don’t have uwsgi installed, try th

2021-10-01 data engineering

flask app nginx