🔖 Decoding Anagrammed Texts Written in an Unknown Language and Script

Decoding Anagrammed Texts Written in an Unknown Language and Script by Bradley Hauer, Grzegorz Kondrak (Transactions of the Association for Computational Linguistics)
Algorithmic decipherment is a prime example of a truly unsupervised problem. The first step in the decipherment process is the identification of the encrypted language. We propose three methods for determining the source language of a document enciphered with a monoalphabetic substitution cipher. The best method achieves 97% accuracy on 380 languages. We then present an approach to decoding anagrammed substitution ciphers, in which the letters within words have been arbitrarily transposed. It obtains the average decryption word accuracy of 93% on a set of 50 ciphertexts in 5 languages. Finally, we report the results on the Voynich manuscript, an unsolved fifteenth century cipher, which suggest Hebrew as the language of the document.

Aside: It’s been ages since I’ve seen someone with Refbacks listed on their site!

👓 Mysterious 15th century manuscript finally decoded 600 years later | The Independent

Code in the 'world's most mysterious book' deciphered by AI (The Independent)
Artificial intelligence has allowed scientists to make significant progress in cracking a mysterious ancient text, the meaning of which has eluded scholars for centuries.

Interesting news if it’s really true! Though I do feel a bit sad as there are some methods I had wanted to try on this longstanding puzzle, but never had the time to play with.

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