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web development

How to improve an online service (video)?

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Improving the robustness of the Arquivo.pt web archive (video thumbnail)

Last updated on August 5th, 2024 at 05:04 pm

Arquivo.pt recommendations to improve the quality of online services


This presentation provides an overview of the architecture and functioning of the system that supports the Arquivo.pt web archive.

It shares the main lessons learned from the experience of developing and maintaining this service for 10 years.

We believe that these recommendations can be useful to improve the quality of any web-based information system.

Share it with your IT department!

Arquivo.pt improves advanced search

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Last updated on August 4th, 2024 at 05:57 pm

Arquivo.pt launched a new version on June 23, 2017 called Venus, in which the Advanced Search operators were improved.

It stands out the improvement of the search operator site that allows to restrict searches to certain preserved sites. For example:

The reproduction of preserved pages containing error messages was also reduced.

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Technical report documents the creation of a searchable web archive

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Last updated on August 4th, 2024 at 06:22 pm

This report presents some of the work developed to create an efficient and effective web archive service, from data acquisition to user interface design.

The results of this research were applied to create the Portuguese Web Archive that is publicly available since January 2010. It supports full-text search over 1 billion contents archived from 1996 to 2010. The developed software is available as an open source project.

93% of the searches are answered in less than 5 seconds

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Last updated on August 4th, 2024 at 06:20 pm

Data from April to June, 2011

  • 93% of the full-text searches performed on the Portuguese Web Archive were responded in less than 5 seconds.
  • 95% of the URL searches were answered in less than 5 seconds.
  • 73% of the user clicks are on the first page of results.
  • We wrote 72 000 lines of code to improve the original search system based on the Archive-access project.
  • Try our search!

Trends in the evolution of the Web: we have published a video about our study

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Last updated on August 4th, 2024 at 06:21 pm

Talk about the evolution of Web characteristics, based on a scientific study performed by the Portuguese Web Archive.

The presentation focuses on the following points:

  • The Web
  • Web Archiving and crawlers
  • Web characteristics and its evolution within 5 years
  • The importance of the study on Web trends in the design of tools that process its data

Find out more: