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)
1997	16	16	16	16	9	13	2348	102049	104397	97.751	100.000	98.863	16	0	0
1999	8	8	8	8	2	8	1563	47644	49207	96.824	100.000	98.386	8	0	0
2000	36	36	0	0	0	0	0	0	0	0.000	0.000	0.000	0	0	0
2001	26	26	13	13	13	13	869	61488	62357	98.606	50.000	66.354	13	0	0
2002	35	35	19	19	13	18	1034	66669	67703	98.473	54.286	69.988	18	0	1
2003	35	35	35	35	30	35	2122	145917	148039	98.567	100.000	99.278	35	0	0
2004	24	24	24	24	19	23	1231	100324	101555	98.788	100.000	99.390	24	0	0
2005	39	39	39	39	34	39	2117	157512	159629	98.674	100.000	99.332	39	0	0
2006	38	38	37	37	32	36	2700	159297	161997	98.333	97.368	97.848	37	0	0
2007	131	131	130	130	128	129	12664	709398	722062	98.246	99.237	98.739	130	0	0
2008	40	40	40	40	35	40	3258	183196	186454	98.253	100.000	99.119	40	0	0
2009	46	46	46	46	41	45	3583	219844	223427	98.396	100.000	99.192	46	0	0
2010	50	50	50	50	46	48	4300	250715	255015	98.314	100.000	99.150	48	0	2
2011	51	51	51	51	49	49	3639	229413	233052	98.439	100.000	99.213	49	0	2
2012	139	139	139	139	137	139	16654	936413	953067	98.253	100.000	99.119	139	0	0
2013	42	42	42	42	42	42	4011	227486	231497	98.267	100.000	99.126	42	0	0
2014	33	33	33	33	32	33	3057	174320	177377	98.277	100.000	99.131	33	0	0
2015	53	53	53	53	51	53	4925	263006	267931	98.162	100.000	99.072	53	0	0
total	842	842	775	775	713	763	70075	4034691	4104766	98.293	92.043	95.065	770	0	5

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)= 2.0761333333333334 minutes with 8 cores

computed on: Sun Sep 25 18:09:30 CEST 2016 from: METADONNEES_CONLL_140407.txt