- Do you think all of the top 500 word tokens contain valuable information? If not, can you impose another list of stop words?
- Can you use stemming instead of lemmatization to process the newsgroups data?
- Can you increase max_features in CountVectorizer from 500 to 5000 and see how the t-SNE visualization will be affected?
- Try visualizing documents from six topics (similar or dissimilar) and tweak parameters so that the formed clusters look reasonable.
United States
United Kingdom
India
Germany
France
Canada
Russia
Spain
Brazil
Australia
Argentina
Austria
Belgium
Bulgaria
Chile
Colombia
Cyprus
Czechia
Denmark
Ecuador
Egypt
Estonia
Finland
Greece
Hungary
Indonesia
Ireland
Italy
Japan
Latvia
Lithuania
Luxembourg
Malaysia
Malta
Mexico
Netherlands
New Zealand
Norway
Philippines
Poland
Portugal
Romania
Singapore
Slovakia
Slovenia
South Africa
South Korea
Sweden
Switzerland
Taiwan
Thailand
Turkey
Ukraine