== Part of Speech tag sets for FCS ==
In search for a simple part-of-speech tagset for CLARIN Federated Content Search

The POS tag set shall be used by the human users of the FCS aggregator.

=== Sources ===
EAGLES: [[http://www.ilc.cnr.it/EAGLES96/pub/eagles/corpora/annotate.ps.gz|EAGLES Recommendations for the morphosyntactic annotation of corpora]], ''Obligatory attributes/values, Major Categories'', §4.2.1 on page 7

STTS/HW: [[http://www.sfs.uni-tuebingen.de/resources/stts-1999.pdf|Guidelines für das Tagging deutscher Textcorpora mit STTS (Kleines und großes Tagset)]], ''Hauptwortarten'', Tabelle 2.1 on page 4

TANL: [[http://medialab.di.unipi.it/wiki/Tanl_POS_Tagset#Coarse-grained_tags Tanl Coarse Grained Tags]]

UD-17: [[http://universaldependencies.github.io/docs/u/pos/all.html|Universal Dependencies]] 

UP-12: [[http://www.petrovi.de/data/universal.pdf|Universal POS]] 2nd paragraph in the right hand column of page 2

=== Summary table ===

The summary table shows the tags drawn from the tag sets quoted above (in their original spelling).

||= EAGLES =||= STTS/HW =||= TANL=||= UP-12 =||= UD-17 =||= Notes =||
||  N       ||  N        ||  S    ||  NOUN   ||  NOUN   || noun    ||
||          ||           ||       ||         ||  PROPN  || proper noun/named entity ||
||  V       ||  V        ||  V    ||  VERB   ||  VERB   || verb    ||
||          ||           ||       ||         ||  AUX    || auxiliary verb (includes modal auxiliaries like ''should'' or ''must'') ||
||  AJ      ||  ADJ      ||  A    ||  ADJ    ||  ADJ    || adjective ||
||  PD      ||  P        ||       ||         ||         || pronoun/determiner (as one single class) ||
||  AT      ||  ART      ||  R    ||         ||         || article ||
||          ||           ||  D    ||  DET    ||  DET    || determiner ||
||          ||           ||  T    ||         ||         || predeterminer (e.g., '''tutto''' il giorno)
||          ||           ||  P    ||  PRON   ||  PRON   || pronoun ||
||  AV      ||  ADV      ||  B    ||  ADV    ||  ADV    || adverb ||
||  AP      ||  AP       ||  E    ||  ADP    ||  ADP    || adposition (circum-, pre-, postposition) ||
||  C       ||  KO       ||  C    ||  CONJ   ||  CONJ   || conjunction ||
||          ||           ||       ||         ||  SCONJ  || subordinating conjunction ||
||  NU      ||  CARD     ||  N    ||  NUM    ||  NUM    || numeral; cardinal numeral (ordinals are tagged as adjectives or adverbs) ||
||  I       ||  ITJ      ||  I    ||         ||  INTJ   || interjection ||
||  U       ||  PTK      ||       ||  PRT    ||  PART   || unique; particle ||
||  R       ||           ||  X    ||  X      ||  X      || residual; other ||
||          ||           ||       ||         ||  SYM    || symbol ($, %, §, ©, +, −, 😝, !http://example.org, !a@example.org) ||
||  PU      ||           ||  F    ||  .      ||  PUNCT  || punctuation ||
||  13      ||  11       ||  14   ||  12     ||  17     || total number of tags ||

'''Notes:''' 

STTS/HW lacks generic tags for punctuation and other: They could be supplemented as $ (for punctuation) and X (for other)

UP-12 lacks a tag for interjection; interjections are mapped to the class X (c.f. [[https://code.google.com/p/universal-pos-tags/source/browse/trunk/nl-alpino.map]])

UP-12 and UD-17 lack a tag for article, it is absorbed into the determiner class.

UP-12 and UD-17 have a class determiner mostly separated out of the pronoun class; this separation is completely unnatural to German speakers, compare the [[http://universaldependencies.github.io/docs/tagset-conversion/de-stts-uposf.html|translation from STTS to UD-17]]

The use of DET is inconsistent in UD-17; e.g., Latin seems to have no determiners at all (c.f. [[http://universaldependencies.github.io/docs/tagset-conversion/la-conll-uposf.html|Tagset la::conll]]).

TANL lacks the category particle, the Italian negation particle ''non'' is classified as an adverb.

TANL considers article, determiner, predeterminer, and pronoun as first-class citizens in parts-of-speech.

TANL has one-letter class names: elegant, but not necessarily mnemonic.

=== Decision ===
A poll was taken in the video meeting on 2015-03-09, for the result see [[VidConf20150309]]