macOS
Homebrewverified · 100%
brew install crfsuitelocal Homebrew formula metadata
MacPortsverified · 94%
sudo port install crfsuiteMacPorts ports tree · math/crfsuite/Portfile · source: api.github.com
brew
Install crfsuite with Homebrew, MacPorts
Fast implementation of conditional random fields. Version 0.12 via Homebrew; verified 2026-07-10. Also installable with macports: sudo port install crfsuite.
install
Additional install commands
overview
Package summary
Fast implementation of conditional random fields
Project links
Commands and aliases
- crfsuite
history
Project history and usage
CRFsuite is Naoaki Okazaki's fast implementation of Conditional Random Fields for labeling sequential data. It provides command-line training/tagging, C++ and SWIG APIs, and training algorithms such as L-BFGS, OWL-QN, SGD, averaged perceptron, passive aggressive, and AROW.
Project history
The official changelog records internal releases beginning with CRFsuite 0.1 on 2007-10-29 and a first public release, 0.4, on 2008-03-05. The 0.4 release added the website, documentation, a tutorial, and a CoNLL 2000 chunking performance comparison.
Adoption history
The project page presents CRFsuite as a faster and more flexible CRF package than older template-oriented tools, with a simple data format, benchmark results, and model storage based on CQDB. Version 0.12 added Python SWIG modules and sample programs, including named entity recognition and part-of-speech tagging examples.
How it is used
CRFsuite users train and tag sequence-labeling models with a feature-per-line data format. The official documentation emphasizes speed, training-method choice, performance evaluation during training, and programmatic use through C++ and SWIG APIs.
Why package nerds care
For package maintainers, CRFsuite is a compact C/C++ NLP toolkit with historical source and binary releases, a BSD license, and a small command-line surface. It is also useful as a contrast point with CRF++ because its official page calls out data-format flexibility that CRF++ lacks.
Timeline
- 2007-10-29: CRFsuite 0.1 internal release
- 2008-03-05: CRFsuite 0.4 first public release
- 2009-03-07: Version 0.6 added SGD and reduced training memory usage
- 2011-08-11: Version 0.12 optimized training, added more algorithms, revised APIs, and added Python SWIG support
Related projects
- The official page links CRFsuite's data-format comparison to CRF++, and also points to libLBFGS and CQDB as implementation-related software.
Sources
security posture
No protected-tool coverage found yet
No matching local secret-handling manifest was found for crfsuite. Nucleus package metadata is still published here so future coverage has a stable package URL.
Install behavior
- No Homebrew post-install hook is recorded in formula metadata.
- Homebrew bottle metadata is available for 12 platform targets.
- Installs with 1 runtime dependencies.
- Build metadata lists 3 build dependencies.
Recommended review
Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.
executables
Installed executables
| Command | Kind | Exposure | Note |
|---|---|---|---|
crfsuite | cli | global executable |
freshness
Version and freshness
These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.
page generated2026-07-25
manager version0.12
manager updated2026-07-10
local dataok
upstreamcurrent
latest detected0.12
https://github.com/chokkan/crfsuite
- okNo freshness warnings were generated.
install metadata
Package metadata
| Package key | brew:crfsuite |
|---|---|
| Version | 0.12 |
| Package manager | Homebrew |
| Package manager page | https://formulae.brew.sh/formula/crfsuite |
| Homepage | https://www.chokkan.org/software/crfsuite/ |
| Repository | https://github.com/chokkan/crfsuite |
| Upstream docs | https://www.chokkan.org/software/crfsuite |
| License | BSD-3-Clause |
| Source archive | https://github.com/chokkan/crfsuite/archive/refs/tags/0.12.tar.gz |
| Last updated | 2026-07-10T13:05:07-04:00 |
| Pulse | updated |
| Dependencies | liblbfgs |
| Build dependencies | autoconf, automake, libtool |
| Bottle | available (on arm64_big_sur, arm64_linux, arm64_monterey, arm64_sequoia, arm64_sonoma, arm64_tahoe, arm64_ventura, big_sur, monterey, sonoma, ventura, x86_64_linux) |
| Homebrew post-install | not defined |
| Service | none declared |
registry facts
Source database details
| Source Database | Homebrew formula API |
|---|---|
| Tap | homebrew/core |
| Full Name | crfsuite |
| Version Scheme | 0 |
| Revision | 0 |
| Conflicts With |
|
| Bottle Stable Root URL | https://ghcr.io/v2/homebrew/core |
| Deprecated | no |
| Disabled | no |
| Keg Only | no |
| URL Keys |
|
source database matches
Other package-manager records
Matches are pulled from external package-manager indexes and kept separate from local Automic Vault package links.
MacPorts95%
crfsuite
sudo port install crfsuite- normalized package name match
- Matched by: Crfsuite
source trail
Generated from repository data
This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.
Combined YAML source
View the package source record on GitHub.
Used sources
- Nucleus package database
- av.db category and tag curation
- cross-ecosystem install command graph
- curated package history
- external package-manager database matches
- package relationship graph
- package version freshness
- package-page enrichment