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Across
  1. 2. used to detect positive or negative tone in text.
  2. 4. metric combining term frequency and inverse document frequency.
  3. 6. to reduce raw text to key words.
  4. 8. technique in text analytics to categorize documents.
  5. 9. library in Python for working with arrays.
Down
  1. 1. term for messy, inconsistent, or incomplete data.
  2. 3. graphical display of data before deep analysis
  3. 5. graphical representation showing data distribution in bars.
  4. 6. used in R for elegant data visualization.
  5. 7. Python library for visualizing with statistical plots.