Estimation of the quality based on absence/presence of words in the TagParser lexicon.

year	nb of papers from the metadata	nb of papers in PDF	nb of papers in XML (= output of PDFBox)	nb of non empty papers as extraction result	nb of papers with an abstract (from extraction)	nb of papers with references (from extraction)	nb of unknown words	nb of known words	nb of words of the content	evaluation of noise = pourcentage of nb of known words / nb of words of the content	evaluation of silence = pourcentage of non empty papers as extraction result / PDF docs	combined evaluation of noise and silence	nb of English papers	nb of French papers	nb of papers in another language (es+de+ru)
2013	35	35	35	35	35	35	5646	273788	279434	97.979	100.000	98.979	35	0	0
2014	43	43	43	43	43	43	7465	353135	360600	97.930	100.000	98.954	43	0	0
2015	14	14	14	14	14	14	2441	119896	122337	98.005	100.000	98.992	14	0	0
total	92	92	92	92	92	92	15552	746819	762371	97.960	100.000	98.970	92	0	0

Note#1: the unknowns with initiale lower-case letter denote some full-size unknown words but often words which have been cut due to bad interpreation of PDF multi-columns by PDFBox.

Note#2: a paper without any content (i.e. without any body) is not taken in the pipeline. This situation may be the consequence of a processing problem or may be it is an invited presentation without any text.In constrast, a paper without abstract is taken.

Note#3: a paper without any content holds an entry in the metadata, and normally, each paper has an entry in the metadata.

Note#4: the combined evaluation is computed as: 2*EvalNoise*EvalSilence / EvalNoise+EvalSilence

total elapsed time (read and display included)= 0.3752166666666667 minutes with 8 cores

computed on: Sun Sep 25 19:38:30 CEST 2016 from: METADONNEES_TACL_150406.txt