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. 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. 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.

Topic	Replies	Views	Activity
About the Data Preprocessing category Data Preprocessing	0	128	September 10, 2021
What is one-hot encoding? Feature Engineering	0	20	November 8, 2022
Error: Iterable over raw text documents expected, string object received tfidf vectorizer Feature Engineering	3	10325	May 22, 2019
What is the difference between cross sectional and panel data? Data Exploration and Visualilzation	0	443	May 8, 2019
A Systematic Way to Build a List of Stopwords Data Preprocessing	3	616	April 23, 2019
How can outlier values be treated? Data Preprocessing	7	936	April 23, 2019
How can I manipulate a pandas Series with a self defined function? Data Preprocessing	1	444	April 23, 2019
During analysis, how do you treat missing values? Data Preprocessing	4	655	April 17, 2019
Confusion Matrix for Multiclass Classification Problem Data Exploration and Visualilzation	3	2676	April 17, 2019
Best Visual Analysis Practices Data Exploration and Visualilzation	4	565	April 16, 2019
Choosing Right tool for visualization Data Exploration and Visualilzation	3	568	April 16, 2019
Standardization and Normalization Data Preprocessing	4	861	April 16, 2019
Text analytics dfm to matrix problem Data Preprocessing	2	631	April 16, 2019
Visualizing GeoSpatial Data in Python Data Exploration and Visualilzation	2	618	April 15, 2019
Hypothesis testing and P-values Feature Engineering	2	638	April 9, 2019
What is the best possible way to split data into training and validation sets? Data Preprocessing	7	1898	April 3, 2019
Confusion between Correlation and Causation Data Exploration and Visualilzation	3	498	April 3, 2019
Cross validation and Overfitting Data Preprocessing	2	485	April 3, 2019
Should I perform both lemmatization and stemming? Feature Engineering	2	1641	April 2, 2019
Creating Confidence intervals via bootstrapping Data Preprocessing	2	463	April 2, 2019
How to clean titanic dataset? Data Preprocessing	0	2117	October 16, 2017
Data Visualization using ggplot2 Data Exploration and Visualilzation	0	1177	October 16, 2017
Feature engineering without domain knowledge Feature Engineering	1	789	October 3, 2017