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We reached 1 200 million archived contents

August 4, 2024August 29, 2011 by admin

Last updated on August 4th, 2024 at 06:18 pm

Numbers from July 2011 about volume of archived data.

We reached 1 200 million contents archived since 1996, 79% of them are indexed
We save 62% of disk space by using DeDuplicator on our daily crawls
We estimated to have disk space until 2017 to archive data and memory until 2014 to make it searchable

rARC service suspended

September 29, 2017August 19, 2011 by admin

Last updated on September 29th, 2017 at 02:46 pm

The rARc project is suspended since July, 2011.

The project for collaborative preservation named rARC started in 2007 within the Portuguese Web Archive.

Contributions:

Successful proof of concept and project in production
Master thesis of André Nogueira, Preservation of the Web through distributed large-scale replication, University of Lisbon
Source code
Page of the project

We thank all the contributors for their collaboration and support.

Our beta-version search service was available 100% of the time

August 4, 2024August 19, 2011 by admin

Last updated on August 4th, 2024 at 06:19 pm

Data from April to June, 2011

Our search is supported by a distributed system composed by 111 multi-thread processes
We have 61 computers:
- 1.8 TB of memory;
- 122 processors (488 cores);
- 348 hard discs (320 TB).
Try our search ove the past!

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

August 4, 2024August 19, 2011 by admin

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!

Video about the Portuguese Web Archive

August 5, 2024May 17, 2011 by admin

Last updated on August 5th, 2024 at 10:54 am

The Portuguese Web Archive was presented at the Jornadas FCCN, on the 9th February, 2011.

The presentation focused on the following points:

Motivation for the Web archiving topic
Portuguese Web Archive project status report
Services available to the community

Find out more:

Usability in practice: we have published a video about our experience

December 20, 2019May 17, 2011 by admin

Last updated on December 20th, 2019 at 05:44 pm

We share our experience with usability processes used to solve problems in the development of the Portuguese Web Archive.

The presentation focuses on the following points:

What is usability?
The Portuguese Web Archive
Usability problems and development iterations
Usability recommendations and user-centred design

Find out more:

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

August 4, 2024May 17, 2011 by admin

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:

Collection from 1996 to 2000 can now be searched

August 5, 2024May 17, 2011 by admin

Last updated on August 5th, 2024 at 08:35 am

A collection of contents from the .PT domain between 1996 and 2000, provided by the Internet Archive, has been successfully integrated in the Portuguese Web Archive.

Search it now

Sample pages from the collection:

Governing in Dialogue – message from the prime minister of Portugal in his official page in 1998
Jacques Delors Information Centre – information on topics related to the European Union in 1997
National Commission for the Commemoration of Portuguese Discoveries – information on the projects and activities of the Commission in 1997
Expo 98 opening – news in Expresso newspaper on the preparations for the opening of the exhibition in 1998 (in Portuguese)
Expo 98 – with photographs and descriptions of points of interest of the exhibition in 1998 (in Portuguese)
Opening of the Vasco da Gama Bridge – new about the opening of the new crossing over the Tagus river in Expresso newspaper in 1998 (in Portuguese)
Diário de Notícias newspaper – online edition in 1996 (in Portuguese)

The Internet Archive is a nonprofit organization founded in 1996 and located in San Francisco. It was conceived as a library of the Internet and provides collections of digital content, including Web sites, music and books.

How to supply historical contents to the Portuguese Web Archive?

Scientific study characterizes search behaviour in a Web archive

September 29, 2017April 8, 2011 by admin

Last updated on September 29th, 2017 at 03:01 pm

This research presents a search behaviour characterization of Web archive users. Detailed statistics about the users’ sessions, queries, terms and clicks were analised from search logs.

The paper Characterizing Search Behavior in Web Archives, by Miguel Costa and Mário J. Silva, was presented at Temporal Web Analytics Workshop 2011, in Hyderabad, India.