Frog-Webservice

Frog is a suite containing a tokeniser, Part-of-Speech tagger, lemmatiser, morphological analyser, shallow parser, and dependency parser for Dutch. This is the webservice for it, for both humans and machines.

Provided tools & services

Frog Webservice

Frog is a suite containing a tokeniser, Part-of-Speech tagger, lemmatiser, morphological analyser, shallow parser, and dependency parser for Dutch.
Go to the WebApplication https://webservices.cls.ru.nl/frog
Type
  • Web Application
Version
2.7
Service Provider
      Centre for Language and Speech Technology, Radboud University and KNAW Humanities Cluster
Input data
Name
*.txt
Description
Text document
Type
DigitalDocument
Encoding Format
text/plain
Name
*.xml
Description
FoLiA XML document
Type
TextDigitalDocument
Encoding Format
text/xml
Output data
Name
*.xml
Description
FoLiA Document
Type
TextDigitalDocument
Encoding Format
text/xml
Name
*.frog.out
Description
Frog Columned Output (legacy)
Type
TextDigitalDocument
Encoding Format
text/plain
Name
error.log
Description
Log file with (standard) error output
Type
DigitalDocument
Encoding Format
text/plain

Frog-Webservice

Note: No URL was registered for this service (yet)
Type
  • Web API

Tool suite: Frog

The following closely related tools are in a tool suite together with Frog-Webservice:

  • Command-line Application
  • Software Library
  • 9 - Proven: Technology complete and proven in practice by real users.
  • Active: The project has reached a stable, usable state and is being actively developed.
thumbnail/logo

Frog 0.34

Frog is an integration of memory-based natural language processing (NLP) modules developed for Dutch. It performs automatic linguistic enrichment such as part of speech tagging, lemmatisation, named entity recognition, shallow parsing, dependency parsing and morphological analysis. All NLP modules are based on TiMBL. [view more]
  • Annotating
  • Contextualizing
  • Linguistics
  • Named Entity Recognition
  • POS-Tagging
  • Segmenting
  • Tagging
  • Textual and content analysis
  • Tree-Tagging
  • dependency parsing
  • dutch
  • lemma
  • lemmatisation
  • natural language processing
  • ner
  • nlp
  • parser
  • part-of-speech tagging
  • pos
  • shallow parsing
  • tagger
  • Bsd
  • Linux
  • Macos
Created: 2011-03-31
Modified: 2023-12-05
  • 9 - Proven: Technology complete and proven in practice by real users.
  • Active: The project has reached a stable, usable state and is being actively developed.

python-frog 0.6.12

Python binding to Frog, an NLP suite for Dutch doing part-of-speech tagging, lemmatisation, morphological analysis, named-entity recognition, shallow parsing, and dependency parsing. [view more]
  • Annotating
  • Contextualizing
  • Linguistics
  • Named Entity Recognition
  • POS-Tagging
  • Segmenting
  • Tagging
  • Textual and content analysis
  • Tree-Tagging
  • nlp computational_linguistics dutch pos lemmatizer
  • Bsd
  • Cython
  • Linux
  • Macos
  • Python
Created: 2014-09-07
Modified: 2026-02-02
  • Active: The project has reached a stable, usable state and is being actively developed.

toad v0.9

Toad: Trainer Of All Data, the Frog training collection [view more]
Created: 2015-12-08
Modified: 2024-12-16

Citation

You can cite this software using the following citation generated from its metadata:

(2023) Frog-Webservice 2.7 .
  • Humanities Cluster
.

Logs & Reviews

Name
Automatic software metadata validation report for Frog-Webservice 2.7
Author
  • codemetapy validator using software.ttl
Date
2026-02-07 03:13:04
Review
Please consult the CLARIAH Software Metadata Requirements at https://github.com/CLARIAH/clariah-plus/blob/main/requirements/software-metadata-requirements.md for an in-depth explanation of any found problems

Validation of Frog-Webservice 2.7 was successful (score=3/5), but there are some warnings which should be addressed:

1. Info: Software source code *SHOULD* link to a continuous integration service that builds the software and runs the software's tests (This is missing in the metadata)
2. Warning: Documentation *SHOULD* be expressed (This is missing in the metadata)
3. Info: Reference publications *SHOULD* be expressed, if any (This is missing in the metadata)
Rating
★ ★ ★ ☆ ☆ 
(log file starts at Sat Feb  7 03:12:43 UTC 2026)

[harvester info] --> Processing frog-service (https://github.com/proycon/frog_webservice) [Sat Feb  7 03:12:43 UTC 2026]

[harvester info] Git updating cached clone of https://github.com/proycon/frog_webservice...

[harvester info] Found release v2.7

[harvester info] Using 'v2.7'

[harvester info] Git reference: v2.7

[harvester info] Scanning directory /tmp/codemeta-harvester.cache/frog-service for harvestable resources...

[harvester info] found codemeta-harvest.json for frog-service (md5sum d17aa23ae9ca03cec3d43b543a494443); values in here take precendence over (override) those in later detection stages

[harvester info] found python setup for frog-service, converting to codemeta

[harvester info] Looking for license....

[harvester info] Found license GPL-3.0-only

[harvester info] Getting contributors from git...

[harvester info] Getting top contributor from git...

[harvester info] Git top contributor Maarten van Gompel <proycon@anaproy.nl> will be assigned as author (and maintainer) if none are found in the metadata

[harvester info] Extracting last and first commit date from git log....

[harvester info] Date created: 2022-02-17T20:41:15Z+0100, date modified: 2023-12-05T16:06:08Z+0100

[harvester info] Querying Github/GitLab API (https://github.com/proycon/frog_webservice)

[harvester info] Adding URL for found README: README.md

[harvester info] Found releaseNotes

[harvester info] Querying Zenodo API for DOI (access token provided)...

[harvester info] Looking for TRL information in README.md...

[harvester info] Looking for repostatus information in README.md...

[harvester info] Found repostatus https://www.repostatus.org/#active

[harvester info] Looking for continuous integration information in README.md...

[harvester info] Looking for documentation links in README.md...

[harvester info] Falling back to git tag (v2.7) if no version number is specified...

[harvester info] Inferring repostatus information from git activity (used only as a fallback if not explicitly provided)...

[harvester info] Inferred repostatus https://www.repostatus.org/#inactive

[harvester info] Looking for repostatus information in README.md in master branch...

[harvester info] Found repostatus (master branch) https://www.repostatus.org/#active

[harvester info] Setting group Frog

[harvester info] Reconciliating: codemetapy  --baseuri https://tools.clariah.nl --baseuri https://tools.clariah.nl --includecontext --addcontext https://w3id.org/nwo-research-fields --addcontext https://w3id.org/research-technology-readiness-levels --addcontextgraph https://vocabs.dariah.eu/rest/v1/tadirah/data?format=text/turtle --trl --identifier "frog-service" --codeRepository "https://github.com/proycon/frog_webservice" --validate /etc/software.ttl --released --enrich --textv "Please consult the CLARIAH Software Metadata Requirements at https://github.com/CLARIAH/clariah-plus/blob/main/requirements/software-metadata-requirements.md for an in-depth explanation of any found problems" -O /tmp/out/frog-service.codemeta.json /tmp/codemeta-harvester.cache//tmp/99-version.frog-service.codemeta.json /tmp/codemeta-harvester.cache//tmp/99-repostatus.frog-service.codemeta.json /tmp/codemeta-harvester.cache//tmp/90-authors.frog-service.codemeta.json /tmp/codemeta-harvester.cache//tmp/43-releasenotes.frog-service.codemeta.json /tmp/codemeta-harvester.cache//tmp/41-readme.frog-service.codemeta.json /tmp/codemeta-harvester.cache//tmp/40-gitapi.frog-service.codemeta.json /tmp/codemeta-harvester.cache//tmp/39-gitdate.frog-service.codemeta.json /tmp/codemeta-harvester.cache//tmp/32-contributors.frog-service.codemeta.json /tmp/codemeta-harvester.cache//tmp/29-license.frog-service.codemeta.json /tmp/codemeta-harvester.cache//tmp/20-python.frog-service.codemeta.json /tmp/codemeta-harvester.cache//tmp/11-repostatus.frog-service.codemeta.json /tmp/codemeta-harvester.cache//tmp/10-harvest.frog-service.codemeta.json /tmp/codemeta-harvester.cache//tmp/05-repostatus.frog-service.codemeta.json /tmp/codemeta-harvester.cache//tmp/04-applicationSuite.frog-service.codemeta.json 

-- begin log --

/usr/lib/python3.12/site-packages/pyshacl/extras/__init__.py:6: UserWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html. The pkg_resources package is slated for removal as early as 2025-11-30. Refrain from using this package or pin to Setuptools<81.

  import pkg_resources

Passed 14 files/sources but specified 0 input types! Automatically guessing types...

Detected input types: [('/tmp/codemeta-harvester.cache//tmp/99-version.frog-service.codemeta.json', 'json'), ('/tmp/codemeta-harvester.cache//tmp/99-repostatus.frog-service.codemeta.json', 'json'), ('/tmp/codemeta-harvester.cache//tmp/90-authors.frog-service.codemeta.json', 'json'), ('/tmp/codemeta-harvester.cache//tmp/43-releasenotes.frog-service.codemeta.json', 'json'), ('/tmp/codemeta-harvester.cache//tmp/41-readme.frog-service.codemeta.json', 'json'), ('/tmp/codemeta-harvester.cache//tmp/40-gitapi.frog-service.codemeta.json', 'json'), ('/tmp/codemeta-harvester.cache//tmp/39-gitdate.frog-service.codemeta.json', 'json'), ('/tmp/codemeta-harvester.cache//tmp/32-contributors.frog-service.codemeta.json', 'json'), ('/tmp/codemeta-harvester.cache//tmp/29-license.frog-service.codemeta.json', 'json'), ('/tmp/codemeta-harvester.cache//tmp/20-python.frog-service.codemeta.json', 'json'), ('/tmp/codemeta-harvester.cache//tmp/11-repostatus.frog-service.codemeta.json', 'json'), ('/tmp/codemeta-harvester.cache//tmp/10-harvest.frog-service.codemeta.json', 'json'), ('/tmp/codemeta-harvester.cache//tmp/05-repostatus.frog-service.codemeta.json', 'json'), ('/tmp/codemeta-harvester.cache//tmp/04-applicationSuite.frog-service.codemeta.json', 'json')]

Adding to contextgraph: /tmp/turtle

Initial URI automatically generated, may be overriden later: https://tools.clariah.nl/frog-service

Processing source #1 of 14

Parsing json-ld file from /tmp/codemeta-harvester.cache//tmp/99-version.frog-service.codemeta.json

    NOTE: Not a valid JSON-LD document, @context missing! Attempting to inject automatically...

    Injected (possibly temporary) URI https://tools.clariah.nl/frog-service

[CODEMETA COMPOSITION (https://tools.clariah.nl/frog-service)] processed 1 new triples, total is now 2

Processing source #2 of 14

Parsing json-ld file from /tmp/codemeta-harvester.cache//tmp/99-repostatus.frog-service.codemeta.json

    NOTE: Not a valid JSON-LD document, @context missing! Attempting to inject automatically...

    Injected (possibly temporary) URI https://tools.clariah.nl/frog-service

[CODEMETA COMPOSITION (https://tools.clariah.nl/frog-service)] processed 1 new triples, total is now 3

Processing source #3 of 14

Parsing json-ld file from /tmp/codemeta-harvester.cache//tmp/90-authors.frog-service.codemeta.json

    Found main resource with URI https://tools.clariah.nl/frog-service.topcontributor/snapshot

    Injected (possibly temporary) URI https://tools.clariah.nl/frog-service

[CODEMETA COMPOSITION (https://tools.clariah.nl/frog-service)] processed 8 new triples, total is now 10

Processing source #4 of 14

Parsing json-ld file from /tmp/codemeta-harvester.cache//tmp/43-releasenotes.frog-service.codemeta.json

    NOTE: Not a valid JSON-LD document, @context missing! Attempting to inject automatically...

    Injected (possibly temporary) URI https://tools.clariah.nl/frog-service

[CODEMETA COMPOSITION (https://tools.clariah.nl/frog-service)] processed 2 new triples, total is now 12

Processing source #5 of 14

Parsing json-ld file from /tmp/codemeta-harvester.cache//tmp/41-readme.frog-service.codemeta.json

    NOTE: Not a valid JSON-LD document, @context missing! Attempting to inject automatically...

    Injected (possibly temporary) URI https://tools.clariah.nl/frog-service

[CODEMETA COMPOSITION (https://tools.clariah.nl/frog-service)] processed 1 new triples, total is now 13

Processing source #6 of 14

Parsing json-ld file from /tmp/codemeta-harvester.cache//tmp/40-gitapi.frog-service.codemeta.json

    Found main resource with URI https://tools.clariah.nl/frog_webservice/snapshot

    Injected (possibly temporary) URI https://tools.clariah.nl/frog-service

[CODEMETA COMPOSITION (https://tools.clariah.nl/frog-service)] overriding old http://schema.org/author (https://tools.clariah.nl/stub/H63c0a2eca44e7a8e -> https://tools.clariah.nl/stub/H-5947aed5c829cc23)

[CODEMETA COMPOSITION (https://tools.clariah.nl/frog-service)] processed 29 new triples, total is now 36

Processing source #7 of 14

Parsing json-ld file from /tmp/codemeta-harvester.cache//tmp/39-gitdate.frog-service.codemeta.json

    NOTE: Not a valid JSON-LD document, @context missing! Attempting to inject automatically...

    Injected (possibly temporary) URI https://tools.clariah.nl/frog-service

[CODEMETA COMPOSITION (https://tools.clariah.nl/frog-service)] overriding old http://schema.org/dateCreated (2022-02-17T21:15:33Z -> 2022-02-17T20:41:15Z+0100)

[CODEMETA COMPOSITION (https://tools.clariah.nl/frog-service)] overriding old http://schema.org/dateModified (2023-12-05T15:14:48Z -> 2023-12-05T16:06:08Z+0100)

[CODEMETA COMPOSITION (https://tools.clariah.nl/frog-service)] processed 2 new triples, total is now 36

Processing source #8 of 14

Parsing json-ld file from /tmp/codemeta-harvester.cache//tmp/32-contributors.frog-service.codemeta.json

    Found main resource with URI https://tools.clariah.nl/frog-service.contributors/snapshot

    Injected (possibly temporary) URI https://tools.clariah.nl/frog-service

[CODEMETA COMPOSITION (https://tools.clariah.nl/frog-service)] processed 8 new triples, total is now 37

Processing source #9 of 14

Parsing json-ld file from /tmp/codemeta-harvester.cache//tmp/29-license.frog-service.codemeta.json

    NOTE: Not a valid JSON-LD document, @context missing! Attempting to inject automatically...

    Injected (possibly temporary) URI https://tools.clariah.nl/frog-service

[CODEMETA COMPOSITION (https://tools.clariah.nl/frog-service)] overriding old http://schema.org/license (http://spdx.org/licenses/GPL-3.0-only -> GPL-3.0-only)

[CODEMETA CORRECTION (https://tools.clariah.nl/frog-service)] automatically converting license to spdx URI

[CODEMETA COMPOSITION (https://tools.clariah.nl/frog-service)] processed 1 new triples, total is now 37

Processing source #10 of 14

Parsing json-ld file from /tmp/codemeta-harvester.cache//tmp/20-python.frog-service.codemeta.json

    Found main resource with URI https://tools.clariah.nl/frog-webservice/2.7

    Injected (possibly temporary) URI https://tools.clariah.nl/frog-service

[CODEMETA COMPOSITION (frog-webservice)] overriding old http://schema.org/author (https://tools.clariah.nl/stub/H-5947aed5c829cc23 -> https://tools.clariah.nl/stub/H-28230a7983791f9b)

[CODEMETA COMPOSITION (frog-webservice)] overriding old http://schema.org/description (Webservice and web interface for Frog, a dutch NLP suite -> Frog is a suite containing a tokeniser, Part-of-Speech tagger, lemmatiser, morphological analyser, shallow parser, and dependency parser for Dutch. This is the webservice for it, for both humans and machines.)

[CODEMETA COMPOSITION (frog-webservice)] overriding old https://codemeta.github.io/terms/developmentStatus (https://www.repostatus.org/#inactive -> https://www.repostatus.org/#active)

[CODEMETA COMPOSITION (frog-webservice)] overriding old http://schema.org/keywords (nlp -> clam webservice rest nlp computational_linguistics rest)

[CODEMETA COMPOSITION (frog-webservice)] overriding old http://schema.org/keywords (part-of-speech-tagger -> clam webservice rest nlp computational_linguistics rest)

[CODEMETA COMPOSITION (frog-webservice)] overriding old http://schema.org/keywords (dutch -> clam webservice rest nlp computational_linguistics rest)

[CODEMETA COMPOSITION (frog-webservice)] overriding old http://schema.org/keywords (webservice -> clam webservice rest nlp computational_linguistics rest)

[CODEMETA COMPOSITION (frog-webservice)] overriding old http://schema.org/keywords (named-entity-recognition -> clam webservice rest nlp computational_linguistics rest)

[CODEMETA COMPOSITION (frog-webservice)] overriding old http://schema.org/keywords (frog -> clam webservice rest nlp computational_linguistics rest)

[CODEMETA COMPOSITION (frog-webservice)] overriding old http://schema.org/keywords (folia -> clam webservice rest nlp computational_linguistics rest)

[CODEMETA COMPOSITION (frog-webservice)] overriding old http://schema.org/name (frog_webservice -> Frog-Webservice)

[CODEMETA COMPOSITION (frog-webservice)] overriding old http://schema.org/version (v2.7 -> 2.7)

[CODEMETA COMPOSITION (frog-webservice)] processed 58 new triples, total is now 76

Processing source #11 of 14

Parsing json-ld file from /tmp/codemeta-harvester.cache//tmp/11-repostatus.frog-service.codemeta.json

    NOTE: Not a valid JSON-LD document, @context missing! Attempting to inject automatically...

    Injected (possibly temporary) URI https://tools.clariah.nl/frog-service

[CODEMETA COMPOSITION (frog-webservice)] processed 1 new triples, total is now 76

Processing source #12 of 14

Parsing json-ld file from /tmp/codemeta-harvester.cache//tmp/10-harvest.frog-service.codemeta.json

    Injected (possibly temporary) URI https://tools.clariah.nl/frog-service

[CODEMETA COMPOSITION (frog-webservice)] overriding old http://schema.org/softwareRequirements (https://tools.clariah.nl/dependency/clam-ge-3-2-4 -> https://tools.clariah.nl/stub/H2fb1e2ea66933eb4)

[CODEMETA COMPOSITION (frog-webservice)] overriding old http://schema.org/softwareRequirements (https://tools.clariah.nl/dependency/folia-tools -> https://tools.clariah.nl/stub/H2fb1e2ea66933eb4)

[CODEMETA COMPOSITION (frog-webservice)] overriding old http://schema.org/applicationCategory (Internet > WWW/HTTP > WSGI > Application -> https://w3id.org/nwo-research-fields#Linguistics)

[CODEMETA COMPOSITION (frog-webservice)] overriding old http://schema.org/applicationCategory (Text Processing > Linguistic -> https://w3id.org/nwo-research-fields#Linguistics)

[CODEMETA COMPOSITION (frog-webservice)] processed 44 new triples, total is now 114

Processing source #13 of 14

Parsing json-ld file from /tmp/codemeta-harvester.cache//tmp/05-repostatus.frog-service.codemeta.json

    NOTE: Not a valid JSON-LD document, @context missing! Attempting to inject automatically...

    Injected (possibly temporary) URI https://tools.clariah.nl/frog-service

[CODEMETA COMPOSITION (frog-webservice)] processed 1 new triples, total is now 114

Processing source #14 of 14

Parsing json-ld file from /tmp/codemeta-harvester.cache//tmp/04-applicationSuite.frog-service.codemeta.json

    NOTE: Not a valid JSON-LD document, @context missing! Attempting to inject automatically...

    Injected (possibly temporary) URI https://tools.clariah.nl/frog-service

[CODEMETA COMPOSITION (frog-webservice)] processed 1 new triples, total is now 115

Remapping URI to (possibly) new identifier and version component: https://tools.clariah.nl/frog-service -> https://tools.clariah.nl/frog-service/2.7

[CODEMETA VALIDATION (frog-service)] done

[CODEMETA ENRICHMENT (frog-service)] Guessing interface type http://schema.org/WebAPI based on clues

[CODEMETA ENRICHMENT (frog-service)] automatically adding programmingLanguage Python derived from runtimePlatform Python

[CODEMETA ENRICHMENT (frog-service)] automatically adding programmingLanguage Python derived from runtimePlatform Python

[CODEMETA ENRICHMENT (frog-service)] automatically adding programmingLanguage Python derived from runtimePlatform Python

[CODEMETA ENRICHMENT (frog-service)] automatically adding programmingLanguage Python derived from runtimePlatform Python

[CODEMETA ENRICHMENT (frog-service)] automatically adding programmingLanguage Python derived from runtimePlatform Python

[CODEMETA ENRICHMENT (frog-service)] automatically adding programmingLanguage Python derived from runtimePlatform Python

VALIDATION https://tools.clariah.nl/frog-service/2.7 #1: Info: Software source code *SHOULD* link to a continuous integration service that builds the software and runs the software's tests (This is missing in the metadata)

VALIDATION https://tools.clariah.nl/frog-service/2.7 #2: Warning: Documentation *SHOULD* be expressed (This is missing in the metadata)

VALIDATION https://tools.clariah.nl/frog-service/2.7 #3: Info: Reference publications *SHOULD* be expressed, if any (This is missing in the metadata)

-- end log --

[harvester info] Output written to /tmp/out/frog-service.codemeta.json

[harvester info] Harvesting remote service URL https://webservices.cls.ru.nl/frog/ for frog-service: codemetapy  --baseuri https://tools.clariah.nl --baseuri https://tools.clariah.nl --includecontext --addcontext https://w3id.org/nwo-research-fields --addcontext https://w3id.org/research-technology-readiness-levels --addcontextgraph https://vocabs.dariah.eu/rest/v1/tadirah/data?format=text/turtle --trl -O "/tmp/codemeta-harvester.cache//tmp/frog-service.codemeta.json" "/tmp/out/frog-service.codemeta.json" "https://webservices.cls.ru.nl/frog/"

[harvester info] <-- Finished processing frog-service (https://github.com/proycon/frog_webservice) [Sat Feb  7 03:13:09 UTC 2026]

Metadata Properties

Version
2.7 (release notes)
Interface types
  • Web API
  • Web Application
Software website
Source code repository
 https://github.com/proycon/frog_webservice Stars are an indicator of the popularity of this project on GitHub
Category
  • Annotating
  • Contextualizing
  • Linguistics
  • Named Entity Recognition
  • POS-Tagging
  • Segmenting
  • Tagging
  • Textual and content analysis
  • Tree-Tagging
Keywords
  • clam webservice rest nlp computational_linguistics rest
Development Status
  • 8 - Complete: Technology complete and qualified, released for all end-users in scholarly environments.
  • Active: The project has reached a stable, usable state and is being actively developed.
Issue Tracker (Support)
https://github.com/proycon/frog_webservice/issues The number of open issues on the issue tracker The number of closes issues on the issue tracker
Documentation
License
Author(s)
Maintainer(s)
Contributor(s)
Producer
Programming Language
  • Python
Runtime Platform
  • Python 3
  • Python 3.10
  • Python 3.6
  • Python 3.7
  • Python 3.8
  • Python 3.9
Operating System
  • BSD
  • Linux
  • macOS
Software dependencies
  • frog
Metadata validation
★ ★ ★ ☆ ☆
Created
2022-02-17 20:41:15 +0100
Last modified
2023-12-05 16:06:08 +0100 Last commit (main branch). Gives an indication of project development activity and rough indication of how up-to-date the latest release is. Number of commits since the last release. Gives an indication of project development activity and rough indication of how up-to-date the latest release is.