This is a pre-production deployment of Warehouse, however changes made here WILL affect the production instance of PyPI.
Latest Version Dependencies status unknown Test status unknown Test coverage unknown
Project Description

Introduction

A Plone portlet that uses the catalog internals to find ‘similar’ content to the page you are looking at

This portlet uses some deep dark data structures within the ZCatalog and ZCTextindex, so it could be brittle in the future if those structures are changed. Then again, they have been the same for the past 8 years or so ;)

This portlet also runs in linear time relative to the number for documents you have in your site, so it could well slow things down. That said I’ve tried to make it pretty efficient.

How it Works

In a nutshell, this portlet compares the text content of an object with all other objects on the site to find other objects with a similar content. The steps are as follows:

  1. Find the path of this document
  2. Look up the record_id (docid) of this path in the catalog
  3. Look in the SearchableText index to find all word ids (wids) in this document
  4. Work out the top 20 most ‘important’ words in this document [*]
  5. For each of the top 20 words, find all documents containing any of those words
  6. Use a vector space model to measure similarity of each candidate document to our top 20 words
  7. Return the top 10 most similar documents.

[*] We work out the top 20 words using a TF*IDF algorithm (the same used in ZCTextIndex.OkapiIndex) to find the words that appear proportionately high in this document compared to all documents in general.

TODO

Add some caching ;)

Changelog

1.5 - 2011-12-12

  • Fixed portlet edit permission used [vangheem]

1.4

  • Added checks for security and language on results [Alessio Siniscalchi]

1.3

  • Fixed broken 1.2 release egg

1.2

  • Added ability to only search certain types [matth]
  • Do not display portlet if no similar items found [matth]

1.1

  • Bug fix important word selection code [matth]

1.0

  • Initial release
Release History

Release History

1.5

This version

History Node

TODO: Figure out how to actually get changelog content.

Changelog content for this version goes here.

Donec et mollis dolor. Praesent et diam eget libero egestas mattis sit amet vitae augue. Nam tincidunt congue enim, ut porta lorem lacinia consectetur. Donec ut libero sed arcu vehicula ultricies a non tortor. Lorem ipsum dolor sit amet, consectetur adipiscing elit.

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1.4

History Node

TODO: Figure out how to actually get changelog content.

Changelog content for this version goes here.

Donec et mollis dolor. Praesent et diam eget libero egestas mattis sit amet vitae augue. Nam tincidunt congue enim, ut porta lorem lacinia consectetur. Donec ut libero sed arcu vehicula ultricies a non tortor. Lorem ipsum dolor sit amet, consectetur adipiscing elit.

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1.3

History Node

TODO: Figure out how to actually get changelog content.

Changelog content for this version goes here.

Donec et mollis dolor. Praesent et diam eget libero egestas mattis sit amet vitae augue. Nam tincidunt congue enim, ut porta lorem lacinia consectetur. Donec ut libero sed arcu vehicula ultricies a non tortor. Lorem ipsum dolor sit amet, consectetur adipiscing elit.

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1.1

History Node

TODO: Figure out how to actually get changelog content.

Changelog content for this version goes here.

Donec et mollis dolor. Praesent et diam eget libero egestas mattis sit amet vitae augue. Nam tincidunt congue enim, ut porta lorem lacinia consectetur. Donec ut libero sed arcu vehicula ultricies a non tortor. Lorem ipsum dolor sit amet, consectetur adipiscing elit.

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1.0

History Node

TODO: Figure out how to actually get changelog content.

Changelog content for this version goes here.

Donec et mollis dolor. Praesent et diam eget libero egestas mattis sit amet vitae augue. Nam tincidunt congue enim, ut porta lorem lacinia consectetur. Donec ut libero sed arcu vehicula ultricies a non tortor. Lorem ipsum dolor sit amet, consectetur adipiscing elit.

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Download Files

Download Files

TODO: Brief introduction on what you do with files - including link to relevant help section.

File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
collective.portlet.similarcontent-1.5.zip (24.8 kB) Copy SHA256 Checksum SHA256 Source Dec 12, 2011

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