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)
1986	9	9	9	9	8	9	1553	75536	77089	97.985	100.000	98.982	9	0	0
1987	19	19	19	19	19	18	2720	144921	147641	98.158	100.000	99.070	19	0	0
1989	21	21	21	21	21	19	2477	158208	160685	98.458	100.000	99.223	21	0	0
1990	18	18	18	18	17	18	2231	160976	163207	98.633	100.000	99.312	18	0	0
1991	21	21	21	21	18	17	2556	157221	159777	98.400	100.000	99.194	21	0	0
1992	18	18	18	18	15	18	2268	142529	144797	98.434	100.000	99.211	18	0	0
1993	18	18	18	18	18	18	2674	166519	169193	98.420	100.000	99.203	18	0	0
1994	20	20	20	20	20	20	2712	179841	182553	98.514	100.000	99.252	20	0	0
1995	17	17	17	17	16	17	2393	168063	170456	98.596	100.000	99.293	17	0	0
1996	15	15	15	15	15	15	2141	129915	132056	98.379	100.000	99.183	15	0	0
1997	15	15	15	15	14	15	2715	139419	142134	98.090	100.000	99.036	15	0	0
1998	22	22	22	22	20	22	3442	203560	207002	98.337	100.000	99.162	22	0	0
1999	18	18	18	18	18	18	3545	192719	196264	98.194	100.000	99.089	18	0	0
2000	18	18	18	18	17	18	2825	180861	183686	98.462	100.000	99.225	18	0	0
2001	18	18	18	18	18	18	3209	196772	199981	98.395	100.000	99.191	18	0	0
2002	21	21	21	21	20	21	3585	253613	257198	98.606	100.000	99.298	21	0	0
2003	19	19	19	19	14	14	4083	176022	180105	97.733	100.000	98.853	19	0	0
2004	20	20	20	20	1	2	5062	198347	203409	97.511	100.000	98.740	20	0	0
2005	25	25	25	25	0	0	6707	264697	271404	97.529	100.000	98.749	25	0	0
2006	27	27	27	27	1	7	6929	296558	303487	97.717	100.000	98.845	27	0	0
2007	35	35	35	35	0	20	9280	401808	411088	97.743	100.000	98.858	35	0	0
2008	23	23	23	23	0	13	5438	237824	243262	97.765	100.000	98.870	23	0	0
2009	28	28	28	28	0	17	7153	309203	316356	97.739	100.000	98.857	28	0	0
2010	41	41	41	41	0	27	10925	444629	455554	97.602	100.000	98.786	41	0	0
2011	40	40	40	40	34	39	9819	487445	497264	98.025	100.000	99.003	40	0	0
2012	23	23	23	23	12	13	6563	254188	260751	97.483	100.000	98.725	23	0	0
2013	65	65	65	65	30	30	20785	775315	796100	97.389	100.000	98.677	65	0	0
2014	71	71	71	71	31	36	21781	818474	840255	97.408	100.000	98.687	71	0	0
2015	57	57	57	57	21	24	17395	693617	711012	97.553	100.000	98.762	57	0	0
total	762	762	762	762	418	523	174966	8008800	8183766	97.862	100.000	98.919	762	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)= 4.151116666666667 minutes with 8 cores

computed on: Sun Sep 25 18:13:39 CEST 2016 from: METADONNEES_CSAL_141118.txt