Platform license

EOP is released under the terms of General Public License (GPL) version 3.

Please note that if you are going to contribute to the EXCITEMENT Open Platform (EOP) you should accept this license policy:

We reserve the right to redistribute the GPL release with modifications under the terms of another license (either Apache v2.0 or LGPL v3 or any other similar license agreement) at a later time without prior notification and permit from the contributors.

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The platform can be configured to use different pipelines to process the data sets (e.g. OpenNLP) and different tools and resources (e.g. WordNet) to annotate entailment relations. Pipelines, tools, and resources can have licences that are compatible or not compatible with General Public License (GPL) version 3 according to the tables below:

Lib=library, Resource=additional resources (knowledge resources, parsers, tools, etc.)

Table 1: GPL-v3-incompatible ones:

No.	Item	Lib/Resource	License	Usecase/Comments
1	GermaNet	Resource	It's own license	Similar to the English (Princeton) WordNet, provides entailment rules for German
2	TextPro	Resource	It's own license	NLP analysis for English and Italian
3	TreeTagger	Resource (tool)	It's own license (The copyright owner, Helmut Schmid, has permitted the EXCITEMENT project to redistribute the binaries with the EOP.)	German Processing
4	JWKTL	lib	http://www.ukp.tu-darmstadt.de/software/jwktl At the moment, JWKTL is not GPL-compatible, as it is not available as open-source software. However, we plan to release the software soon (possibly in July/August?). So far, we planned to use the Apache License, which would (as far as I know) allow using JWKTL in your GPL software. Please also study the license of the Berkeley DB, which is being used by JWKTL and might imply transitive conditions. Should be no problem though, but still needs consideration" (Christian Meyer)	-
5	Lingpipe	lib	http://alias-i.com/lingpipe/web/licensing.html “It is not considered to be GPL-v3 compatible but we will very likely adopt the AGPL in the near future. If there is a good reason to move more quickly let me know. I expect within the next 60 days.” (Breck Baldwin)	-
6	JUnit	lib	Common Public License	-
7	jni-svmlight	lib	http://morphix-nlp.berlios.de/manual/node48.html “the code is not GPL. But it is free for research and teaching” (Thorsten Yoachim)"	-
8	CatVar	Resource	According to Mr. Nizar Habash’s reply, the license is going to soon change to GPLv-3 compatible. Previous (and current) license: Open Software License version 1.1 (Mutual Termination for Patent Action: This License shall terminate automatically and You may no longer exercise any of the rights granted to You by this License if You file a lawsuit in any court alleging that any OSI Certified open source software that is licensed under any license containing this “Mutual Termination for Patent Action” clause infringes any patent claims that are essential to use that software.)	Uninflected words (lemmas) and their categorical (i.e., part-of-speech) variants

Table 2: GPL-v3-compatible ones:

No.	Item	Lib/Resource	License	Usecase/Comments
1	VerbOcean	Resource	No limitations were declared	Various semantic relations between verbs
2	WordNet (English)	Resource	BSD-like: WordNet License	Entailment rules for English
3	Italian MultiWordNet	Resource	Creative Commons Attribution 3.0 Unported License	Similar to the English (Princeton) WordNet, provides entailment rules for Italian
4	Lin proximity-based	Resource	No limitations were declared	Distributional similarity rules for English nouns, verbs, adjectives and adverbs
5	Lin similarity-based	Resource	No limitations were declared	Distributional similarity rules for English nouns, verbs, adjectives and adverbs
7	Lin similarity-based, Reuters	Resource	MIT	Distributional similarity rules for English nouns
8	Directional similarities	Resource	MIT	Directional similarity rules for English nouns and verbs
9	Wikipedia (EN)	Resource	MIT	Entailment rules for English nouns
10	Geo	Resource	MIT	Geographic resource: each location entails its location entities
11	Wikipedia (IT)	Resource	MIT	Entailment rules for Italian nouns
12	libSVM	lib	LGPL	Support Vector Machines (SVM)
13	OpenNLP	lib	Apache v2.0	NLP
14	MST Parser	lib	Apache v2.0	-
15	UIMA	lib	Apache v2.5	Unstructured Information Management applications
16	Stanford Parser	lib	GPL	-
17	ArkRef	lib	MIT	-
18	Commons-lang	lib	Apache v2.0+	-
19	Apache-servicemix-bundles-collections	lib	Apache	-
20	extJwnl	lib	BSD	-
21	Jwnl	lib	BSD	-
22	Stanford-NER	lib	GPL	-
23	Apache Lucene	lib	Apache v2.0+	-
24	Stanford-Pos-Tagger	lib	GPL	-
25	Open-NLP tools	lib	Apache v2.0+	-
26	Gate	lib	AGPL	-
27	JOrtho	lib	GPL	-
28	MySQL Connector	lib	GPL	-
29	Easy-First	lib	GPL	-
30	Sebastian Nagel sentence-splitter	lib	GPL	-
31	supersense-tagger	lib	Apache license V2.0	-
32	JWI	lib	http://projects.csail.mit.edu/jwi/license.html “JWI is free to use for all purposes (commercial or otherwise), doesn’t rely on any 3rd party libraries, and all the source code is available. It’s licensed under Creative Commons CC-BY, which to my understanding only requires users to grant credit where credit is due; it allows derivative works and commercial use at no charge. I think this fits with GPL, but, again, I’m not a lawyer. I will certainly not complain if you use JWI in your project, whatever it is, as long as you credit me for JWI.” (Mark Finlayson)	-
33	Biu-normalizer	lib	Free to use, no guarantee (code cleanup and bug fixes are required)	-
34	Morph-Adorner	lib	http://morphadorner.northwestern.edu/morphadorner/licenses/ The principal license for MorphAdorner is the NCSA license. This license is based on the terms of the Expat and modified BSD licenses. It is a lax, permissive non-copyleft free software license, compatible with the GNU GPL. On the other hand, many of the libraries used by MorphAdorner have their own licenses as noted on that page as well: http://morphadorner.northwestern.edu/morphadorner/licenses/#thirdpartylicenses	-
35	German DEWac 1k/10k dist sim	Resource	-	Data kept internally in JAR
36	German Derivational Lexical resource	Resource	-	Data kept internally in JAR