A package that suggests similar titles to one being added
Project description
Introduction
EEA Similarity is a Plone add-on which provides content suggestions based on similarity scores to a search string. It uses NLP algorithms like TF-IDF (frequency–inverse document frequency) and LSI (Latent Semantic Indexing).
Initial use case is to provide a list of possible duplicates when adding content (based on the entered title).
Installation
zc.buildout
If you are using zc.buildout and the plone.recipe.zope2instance recipe to manage your project, you can do this:
Update your buildout.cfg file:
Add eea.similarity to the list of eggs to install
Tell the plone.recipe.zope2instance recipe to install a ZCML slug
[instance] ... eggs = ... eea.similarity zcml = ... eea.similarity
Re-run buildout, e.g. with:
$ ./bin/buildout
You can skip the ZCML slug if you are going to explicitly include the package from another package’s configure.zcml file.
Getting started
Go to Site Setup > Add-ons and install EEA Similarity
Create IDF index by calling @@create_idf_index Browser view on site root. If you have plone.app.async installed, it will add a daily job to async queue, otherwise you’ll have to setup an external cron job to call this periodically.
Customize settings via Site Setup > EEA Similarity Settings
Dependencies
- EEA Similarity has the following dependencies:
stemming
gensim (which in turn depends on numpy and scipy)
- On CentOS you need to install:
blas-devel
lapack-devel
gcc-fortran
- On Debian/Ubuntu you need to install:
libblas-dev
liblapack
gfortran
Possible issues with scipy and numpy:
Due to a bug in scipy, it is possible that the packages will not install when running buildout. There are two solutions/options:
Install them with easy_install pip before running the buildout.
Update zc.buildout to version 2.9.0 and activate the wheel support via buildout.wheel and the dependencies will be installed normally.
Source code
Copyright and license
The Initial Owner of the Original Code is European Environment Agency (EEA). All Rights Reserved.
The EEA Similarity (the Original Code) is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
More details in License.txt
Funding
EEA - European Environment Agency (EU)
Changelog
1.5 - (2017-05-22)
Upgrade step: Within “Plone > Site setup > Add-ons” click on upgrade button available for EEA Similarity [avoinea refs #84915]
Change: Add dedicated async quota for similarity jobs [avoinea refs #84915]
Change: fixed PyLint warnings and errors [valipod refs #84949]
1.4 - (2017-04-24)
Feature: add control panel option to show suggestions only after a certain title length [valipod refs #84480]
Change: updated package information [eduard-fironda]
1.3 - (2017-04-19)
Bug fix: fixed issue with the equivalent sets [valipod refs #84294]
Feature: added metadata info to the suggestion dialog [valipod refs #84294]
1.2 - (2017-04-14)
Bug fix: Remove hard dependency on plone.app.async and eea.versions [avoinea refs #83163]
Bug fix: removed hard coded path in the dialog’s javascript [valipod refs #83163]
Bug fix: added some defaults to the control panel settings [valipod refs #83163]
Bug fix: removed mandatory status for some control panel settings [valipod refs #83163]
1.1 - (2017-04-13)
Bug fix: fixed README markup [alecghica refs #82296]
Upgrade step: trigger index generation once (/www/create_idf_index) Feature: added index update frequency to the registry settings [valipod refs #83163]
1.0 - (2017-04-12)
- Feature: related to index and score:
moved the index creation to the async instance
add similarity score next to object link in dialog
[valipod refs #83163]
- Feature: added to registry settings:
equivalent content types sets, use of stopwords, number of shown suggestions
max. score difference between suggestions, dialog title and text
[valipod refs #83163]
Pre-upgrade step: run etc/scripts/prereq.sh on each backend [alecghica refs #82296]
Pre-upgrade step: run deploy.sh [alecghica refs #82296]
Upgrade step: from control panel instal eea.similarity [valipod refs #82296] [alecghica refs #82296]
Feature: Initial release [valipod refs #82296]
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