Mathematical philology: entropy information in refining classical texts' reconstruction, and early philologists' anticipation of information theory.

Philologists reconstructing ancient texts from variously miscopied manuscripts anticipated information theorists by centuries in conceptualizing information in terms of probability. An example is the editorial principle difficilior lectio potior (DLP): in choosing between otherwise acceptable altern...

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Autores principales: John L Cisne, Robert M Ziomkowski, Steven J Schwager
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Publicado: Public Library of Science (PLoS) 2010
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Acceso en línea:https://doaj.org/article/5ee9f8c20cbf4ab4af6a94d7303b8001
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spelling oai:doaj.org-article:5ee9f8c20cbf4ab4af6a94d7303b80012021-11-25T06:26:47ZMathematical philology: entropy information in refining classical texts' reconstruction, and early philologists' anticipation of information theory.1932-620310.1371/journal.pone.0008661https://doaj.org/article/5ee9f8c20cbf4ab4af6a94d7303b80012010-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/20084117/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203Philologists reconstructing ancient texts from variously miscopied manuscripts anticipated information theorists by centuries in conceptualizing information in terms of probability. An example is the editorial principle difficilior lectio potior (DLP): in choosing between otherwise acceptable alternative wordings in different manuscripts, "the more difficult reading [is] preferable." As philologists at least as early as Erasmus observed (and as information theory's version of the second law of thermodynamics would predict), scribal errors tend to replace less frequent and hence entropically more information-rich wordings with more frequent ones. Without measurements, it has been unclear how effectively DLP has been used in the reconstruction of texts, and how effectively it could be used. We analyze a case history of acknowledged editorial excellence that mimics an experiment: the reconstruction of Lucretius's De Rerum Natura, beginning with Lachmann's landmark 1850 edition based on the two oldest manuscripts then known. Treating words as characters in a code, and taking the occurrence frequencies of words from a current, more broadly based edition, we calculate the difference in entropy information between Lachmann's 756 pairs of grammatically acceptable alternatives. His choices average 0.26+/-0.20 bits higher in entropy information (95% confidence interval, P = 0.005), as against the single bit that determines the outcome of a coin toss, and the average 2.16+/-0.10 bits (95%) of (predominantly meaningless) entropy information if the rarer word had always been chosen. As a channel width, 0.26+/-0.20 bits/word corresponds to a 0.790.79(+0.09) (-0.15) likelihood of the rarer word being the one accepted in the reference edition, which is consistent with the observed 547/756 = 0.72+/-0.03 (95%). Statistically informed application of DLP can recover substantial amounts of semantically meaningful entropy information from noise; hence the extension copiosior informatione lectio potior, "the reading richer in information [is] preferable." New applications of information theory promise continued refinement in the reconstruction of culturally fundamental texts.John L CisneRobert M ZiomkowskiSteven J SchwagerPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 5, Iss 1, p e8661 (2010)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
John L Cisne
Robert M Ziomkowski
Steven J Schwager
Mathematical philology: entropy information in refining classical texts' reconstruction, and early philologists' anticipation of information theory.
description Philologists reconstructing ancient texts from variously miscopied manuscripts anticipated information theorists by centuries in conceptualizing information in terms of probability. An example is the editorial principle difficilior lectio potior (DLP): in choosing between otherwise acceptable alternative wordings in different manuscripts, "the more difficult reading [is] preferable." As philologists at least as early as Erasmus observed (and as information theory's version of the second law of thermodynamics would predict), scribal errors tend to replace less frequent and hence entropically more information-rich wordings with more frequent ones. Without measurements, it has been unclear how effectively DLP has been used in the reconstruction of texts, and how effectively it could be used. We analyze a case history of acknowledged editorial excellence that mimics an experiment: the reconstruction of Lucretius's De Rerum Natura, beginning with Lachmann's landmark 1850 edition based on the two oldest manuscripts then known. Treating words as characters in a code, and taking the occurrence frequencies of words from a current, more broadly based edition, we calculate the difference in entropy information between Lachmann's 756 pairs of grammatically acceptable alternatives. His choices average 0.26+/-0.20 bits higher in entropy information (95% confidence interval, P = 0.005), as against the single bit that determines the outcome of a coin toss, and the average 2.16+/-0.10 bits (95%) of (predominantly meaningless) entropy information if the rarer word had always been chosen. As a channel width, 0.26+/-0.20 bits/word corresponds to a 0.790.79(+0.09) (-0.15) likelihood of the rarer word being the one accepted in the reference edition, which is consistent with the observed 547/756 = 0.72+/-0.03 (95%). Statistically informed application of DLP can recover substantial amounts of semantically meaningful entropy information from noise; hence the extension copiosior informatione lectio potior, "the reading richer in information [is] preferable." New applications of information theory promise continued refinement in the reconstruction of culturally fundamental texts.
format article
author John L Cisne
Robert M Ziomkowski
Steven J Schwager
author_facet John L Cisne
Robert M Ziomkowski
Steven J Schwager
author_sort John L Cisne
title Mathematical philology: entropy information in refining classical texts' reconstruction, and early philologists' anticipation of information theory.
title_short Mathematical philology: entropy information in refining classical texts' reconstruction, and early philologists' anticipation of information theory.
title_full Mathematical philology: entropy information in refining classical texts' reconstruction, and early philologists' anticipation of information theory.
title_fullStr Mathematical philology: entropy information in refining classical texts' reconstruction, and early philologists' anticipation of information theory.
title_full_unstemmed Mathematical philology: entropy information in refining classical texts' reconstruction, and early philologists' anticipation of information theory.
title_sort mathematical philology: entropy information in refining classical texts' reconstruction, and early philologists' anticipation of information theory.
publisher Public Library of Science (PLoS)
publishDate 2010
url https://doaj.org/article/5ee9f8c20cbf4ab4af6a94d7303b8001
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AT stevenjschwager mathematicalphilologyentropyinformationinrefiningclassicaltextsreconstructionandearlyphilologistsanticipationofinformationtheory
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