Filling the Gaps in Ancient Akkadian Texts: A Masked Language Modelling Approach

• URL: http://arxiv.org/abs/2109.04513v1
• Date: Thu, 9 Sep 2021 18:58:14 GMT
• Title: Filling the Gaps in Ancient Akkadian Texts: A Masked Language Modelling Approach
• Authors: Koren Lazar, Benny Saret, Asaf Yehudai, Wayne Horowitz, Nathan Wasserman, Gabriel Stanovsky
• Abstract summary: We present models which complete missing text given transliterations of ancient Mesopotamian documents. Due to the tablets' deterioration, scholars often rely on contextual cues to manually fill in missing parts in the text.
• Score: 8.00388161728995
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We present models which complete missing text given transliterations of ancient Mesopotamian documents, originally written on cuneiform clay tablets (2500 BCE - 100 CE). Due to the tablets' deterioration, scholars often rely on contextual cues to manually fill in missing parts in the text in a subjective and time-consuming process. We identify that this challenge can be formulated as a masked language modelling task, used mostly as a pretraining objective for contextualized language models. Following, we develop several architectures focusing on the Akkadian language, the lingua franca of the time. We find that despite data scarcity (1M tokens) we can achieve state of the art performance on missing tokens prediction (89% hit@5) using a greedy decoding scheme and pretraining on data from other languages and different time periods. Finally, we conduct human evaluations showing the applicability of our models in assisting experts to transcribe texts in extinct languages.

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