Category Archives: Software

OVA3 released

Posted by chris on December 21, 2022

OVA3 is the latest release of the Online Visualisation of Argument analysis tool. OVA3 is thoroughly re-engineered for speed, stability and scalability and introduces collaborative editing, PDF annotation, utterance timestamps and a re-designed easy-to-use graphical interface. Like its predecessor (OVA2) it supports a wide variety of argumentation schemes and is also designed to handle both simple monological arguments and complex arguments situated in dialogue, as well as providing optional support for analysis using Inference Anchoring Theory. 

OVA has tens of thousands of users and is a native Argument Web application, interfacing to annotation of millions of words across thousands of arguments through the underlying AIF representation used in a variety of AI applications including argument mining algorithms, automatic grading software and visual analytics that provide insight and summary. 

OVA3 is released as free software and can be found online at ova.arg.tech with an accompanying user manual and further information.

The codebase is released under CC-BY-SA at github.com/arg-tech/OVA3

OVA Version 2.0 Released

Posted by chris on April 28, 2015

ova2-ss The ARG-tech tool for Online Visualisation of Argument, OVA, is released today. For the past eighteen months, OVA has been in use in beta form by research groups and educators around the world, with their feedback and suggestions helping to improve the software.

OVA provides a simple and intuitive interface for analysing argumentation, and is a native Argument Web tool which means that it can interact with the wide variety of other applications and systems which use AIF, including Araucaria, Argublogging, argugrader and others.

OVA runs in a browser and can be used to analyse text files or web pages. It provides argumentation schemes for capturing stereotypical patterns of reasoning, and also conflict schemes for capturing patterns of rebutting and undercutting attack. Analyses can be saved locally or directly to the Argument Web where they can be navigated using the AIFdb search interface, corpus management and other tools. It also supports online collaborative working, allowing remote teams to work together on argument analysis in real time.

OVA can be found online at http://ova.arg-tech.org (or, if you would rather play with a test deployment that does not add its data to the live Argument Web servers, you can try http://test.ova.arg-tech.org)

This is the first public release of OVA, and as usual we are keen to get comments and feedback.

A short video introducing OVA is also available.

 

 

Corpus Management Tools Released

Posted by chris on April 29, 2014

We are this week releasing a set of simple tools for using AIFdb to manage argument corpus resources. All of our previously released corpora are available as datasets in AIFdb, including AraucariaDB.

The tools are available at corpora.aifdb.org, and there is a short video describing how to use them:

New version of Arvina

Posted by chris on October 1, 2013

A new version of the dialogue support tool Arvina is coming together. Arvina

  • accepts any dialogue protocol specification (expressed using an extended version of DGDL),
  • allows an arbitrary starting point in the Argument Web,
  • automatically creates agents which are populated with data corresponding to statements that individuals have contributed to the Argument Web, and then
  • supports an online mixed initiative debate involving one or more users plus the automatically created agents, which
  • updates the Argument Web with appropriate AIF structures as the dialogue proceeds.

You can see a sneak preview of fully generalised mixed initiative argumentation in this video.

Continue reading

Argument AnalysisWall: analysis in real time

Posted by chris on July 19, 2012

Last night the ARG:dundee team conducted close argument analysis on a live 45 minute broadcast of an episode of the BBC Radio 4 programme, The Moral Maze, using our Argument AnalysisWall.

We aimed to make debates available on the Argument Web for all the different compatible online tools to access. Specifically, we wanted to analyse broadcast debate and support online interaction with those arguments. Live. To do it, we needed lots of analysts working together, using a large touch screen running bespoke software to collaboratively analyse the discourse. Stenographic transcription, argument segmentation and enthymeme reconstruction are all carried out by other team members. There are more details and a short video of the result is available and an unedited single-camera view of the full 45 minutes is also available. A more interesting, multi-camera version of the full analysis is also available.

TOAST: An ASPIC+ implementation

Posted by Mark on June 20, 2012

TOAST calculates acceptability semantics of structured argumentation frameworks.

As part of the work on the Dialectical Argumentation Machines project, we have implemented a version of Prakken‘s ASPIC+ framework. The application allows computation of various acceptability semantics over structured argumentation systems, making use of the Dung-O-Matic engine designed for abstract frameworks.

The system is deployed as a web service, with a demonstration interface available at http://www.arg.dundee.ac.uk/toast/. A help page, with details of the syntax used, can be found at http://www.arg.dundee.ac.uk/toast/help/web.

An API for programmatic access to the web service is also available.

The reference to go with it is:

Snaith, M. & Reed, C. (2012) “TOAST: online ASPIC+ implementation” in Proceedings of the 4th International Conference on Computational Models of Argument (COMMA 2012), IOS Press, Vienna.

It’s reasonably scalable: it’s being used with rulesets of around 20,000 in work by Phil Quinlan. It’s also providing an evaluation back-end to the AIFdb. But as ever, please let us have your feedback.

Get Argublogging!

Posted by chris on April 12, 2012

Today sees the release of the first application built on the Argument Web that is aimed at non-specialist audiences: Argublogging. For bloggers and online commentators, argublogging offers a way of expressing agreement and disagreement in online conversations using the rich language of the argument web, but in a style that is at least as easy to use as existing online comment systems.

Argublogging contributes to the growing set of resources available in the language of the Argument Web, AIF, and argublogged argument can be visualised using OVA, analysed using Rationale, Araucaria and Carneades, and will soon be extendable using further Argument Web compatible tools.

For more information, visit argublogging.com or see the argublogging demo video:

(Download the video here)

Infrastructure for the Argument Web released

Posted by chris on February 21, 2012

A full beta of several key parts of the infrastructure for the Argument Web are released today.

AIF-compliant Argument Web servers at Dundee provide the backend support, though you can also download the database schema if you want to host your own.

The databases here include examples from a number of popular tools including Rationale, Carneades and Araucaria, along with additional arguments analysed and produced as a part of the EPSRC-funded Dialectical Argumentation Machines project.

Access to the databases is via a search interface which provides access to both entire argument maps and a dynamically navigable claim-to-claim view.

Finally, the AIFdb at Dundee also provides import and export functionality to form Argument Web interfaces to Rationale, Carneades and Araucaria, as well as providing export to DOT and SVG. Existing files in these formats can be uploaded online, and argument maps can be downloaded from the AIFdb interface.  The ontology which drives the Argument Web is expressed in OWL, and all resources are also submittable and available from the databases in RDF.

In the coming weeks, additional tools for updating, manipulating, searching and navigating argument web resources will also be made available along with APIs and other programmatic interfaces.

Argument Interchange

Posted by chris on January 6, 2012

A first glimpse of how AIF is supporting interchange on the Argument Web

Prototype development on infrastructure and basic tools has reached the point where we can get a first glimpse of how the Argument Web will support a wide range of argument-related practice online. The video shows how different argument analysis tools can interact with each other, and how tools for analysis can work in harmony with tools for argument authoring and debate.

All the software is currently available, and going through some final testing before release. Later on in January, we will open access to the AIF database, and the first set of import/export filters. Then in February, we will release a public beta of the first practical Argument Web tool: FireBack, a Firefox plugin for argublogging. Tools for debate, analysis and automated computation will then follow later in the Spring.

(Download the video here).

OVA-gen alpha-2 released

Posted by Mark on November 29, 2011

OVA-gen user interface

OVA-gen user interface

OVA-gen alpha-2 is the second release of our tool for constructing and analysing Dung-style argumentation frameworks.

What’s new:

  • Acceptability semantics can be individually selected (instead of computing all semantics and scrolling through)
  • When semantics are selected, acceptability renderings will be updated automatically
  • Integration with the new version of Dung-O-Matic, which allows the following new semantics to be computed:
    – admissible sets
    – all preferred extensions
    – all stable extensions

OVA-gen can be found at http://ova.computing.dundee.ac.uk/ova-gen

As ever, we welcome your feedback.