Hi Rene,
years ago I experimented with Bhattacharyya distance (DB on You are not allowed to view links. Register or Login to view.) but I dropped it because it falls in the 0...infinite range. On the other hand, the Bhattacharyya Coefficient (BC) fits your description, so I guess this is what you are referring to: range 0...1 "where higher values mean greater similarity".
Ideally, trigrams could add something, for instance, by including spaces as suggested by Rene, one could measure the high frequency of y.q and other word-boundary effects. If one wanted to include line-boundary effects, the approach proposed by Rene could be extended to include a symbol for Line Breaks.
One could also consider the MATTR measures You are not allowed to view links. Register or Login to view.. These of course require a sufficient number of words, but the most peculiar feature of voynichese is computed on very small windows (w=5) and 400 words should be enough for that.
For whatever measure, there is the problem mentioned by Tavie of the the different "dialects", e.g. Currier A, Currier B, pharmacese (the small-plants aka pharma section belongs to A but has a distinctive high frequency of EVA:eol) etc. One should compare the candidate text with the individual dialects, but the boundaries between the dialects are blurred. A possibility is picking sections where both the illustrations and the scribe are homogeneous (e.g. "Herbal A", "pharma", "Q13").
years ago I experimented with Bhattacharyya distance (DB on You are not allowed to view links. Register or Login to view.) but I dropped it because it falls in the 0...infinite range. On the other hand, the Bhattacharyya Coefficient (BC) fits your description, so I guess this is what you are referring to: range 0...1 "where higher values mean greater similarity".
Ideally, trigrams could add something, for instance, by including spaces as suggested by Rene, one could measure the high frequency of y.q and other word-boundary effects. If one wanted to include line-boundary effects, the approach proposed by Rene could be extended to include a symbol for Line Breaks.
One could also consider the MATTR measures You are not allowed to view links. Register or Login to view.. These of course require a sufficient number of words, but the most peculiar feature of voynichese is computed on very small windows (w=5) and 400 words should be enough for that.
For whatever measure, there is the problem mentioned by Tavie of the the different "dialects", e.g. Currier A, Currier B, pharmacese (the small-plants aka pharma section belongs to A but has a distinctive high frequency of EVA:eol) etc. One should compare the candidate text with the individual dialects, but the boundaries between the dialects are blurred. A possibility is picking sections where both the illustrations and the scribe are homogeneous (e.g. "Herbal A", "pharma", "Q13").
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