The idea behind inverse document frequency (IDF) is that all words in the corpus are not equally important.

He scurrilously reviles the King and Parliament by the abuseful names of Hereticks and Schiamaticks

The hikers were issued with an on-the-spot fine for littering.

Omar has challenged Elliott Abrams’s record in Latin America, taken a firm line against Saudi Arabia and the Emirates, and advocated for—wait for it—the two-state solution for Israel and Palestine (even though the headlines have focused on her expressing support for the right to boycott as a tactic).