Data Preprocessing

Web Scraping Web Scraping is a method of collecting html data from a website, so that it can be transformed into proper structure for data analysis. Feature Engineering Feature Engineering is a systematic process of reducing dimension of data set, creating new features and selecting relevant features for making machine learning model useful. Data Exploration and Visualilzation Data Exploration is a method of understanding the structure of given data at high level. It can be done by using statistical or visualization tools.

Topic	Replies	Views	Activity
About the Data Preprocessing category Data Preprocessing	0	95	September 10, 2021
Error: Iterable over raw text documents expected, string object received tfidf vectorizer Feature Engineering	3	9595	May 22, 2019
What is the difference between cross sectional and panel data? Data Exploration and Visualilzation	0	405	May 8, 2019
A Systematic Way to Build a List of Stopwords Data Preprocessing	3	579	April 23, 2019
How can outlier values be treated? Data Preprocessing	7	887	April 23, 2019
How can I manipulate a pandas Series with a self defined function? Data Preprocessing	1	410	April 23, 2019
During analysis, how do you treat missing values? Data Preprocessing	4	622	April 17, 2019
Confusion Matrix for Multiclass Classification Problem Data Exploration and Visualilzation	3	2632	April 17, 2019
Best Visual Analysis Practices Data Exploration and Visualilzation	4	530	April 16, 2019
Choosing Right tool for visualization Data Exploration and Visualilzation	3	528	April 16, 2019
Standardization and Normalization Data Preprocessing	4	827	April 16, 2019
Text analytics dfm to matrix problem Data Preprocessing	2	594	April 16, 2019
Visualizing GeoSpatial Data in Python Data Exploration and Visualilzation	2	578	April 15, 2019
Hypothesis testing and P-values Feature Engineering	2	602	April 9, 2019
What is the best possible way to split data into training and validation sets? Data Preprocessing	7	1853	April 3, 2019
Confusion between Correlation and Causation Data Exploration and Visualilzation	3	458	April 3, 2019
Cross validation and Overfitting Data Preprocessing	2	448	April 3, 2019
Should I perform both lemmatization and stemming? Feature Engineering	2	1587	April 2, 2019
Creating Confidence intervals via bootstrapping Data Preprocessing	2	428	April 2, 2019
How to clean titanic dataset? Data Preprocessing	0	2077	October 16, 2017
Data Visualization using ggplot2 Data Exploration and Visualilzation	0	1139	October 16, 2017
Feature engineering without domain knowledge Feature Engineering	1	744	October 3, 2017