An ontology represents knowledge as a set of concepts within a domain and the relationships between those concepts. Knowledge representation and knowledge engineering [17] allow AI …

In some forms of the puzzle, the first letters of each correct clue answer, read in order from clue A on down the list, will spell out the author of the quote and the title of the work it is taken from; …

Grids forming shapes other than squares are also occasionally used. Puzzles are often one of several standard sizes. For example, many weekday newspaper puzzles (such as the American …

The modern Sudoku was most likely designed anonymously by Howard Garns, a 74-year-old retired architect and freelance puzzle constructor from Connersville, Indiana, and first …

To solve the puzzle, one must recover the original lettering. Though once used in more serious applications, they are now mainly printed for entertainment in newspapers and magazines. …

Fill-Ins, also known as Fill-It-Ins or Word Fill-Ins, are a variation of the common crossword puzzle in which words, rather than clues, are given, and the solver must work out where to place them. …

In the computer security or Information security fields, there are a number of tracks a professional can take to demonstrate qualifications. [Notes 1] Four sources categorizing these, and many …

Frege's puzzles are puzzles about the semantics of proper names, although related puzzles also arise in the case of indexicals. Gottlob Frege (1848–1925) introduced the puzzle at the …