Tools

Analysis

Voyant Document Term Frequencies

Document Term Frequencies shows word frequencies for each document in the corpus. You can see the selected word at the top of the window highlighted in yellow. Its relevance to the documents is shown in the table below.

Rated 5.0 out of 5.

Visualization

Voyant Knots

Knots is a visualization tool that helps to understand patterns of word relevance in one or more documents. Each term is represented as a twisted line – when the lines overlap it means a relevance or linkage within the terms.

Rated 5.0 out of 5.

Search

Collocation - XML (TAPoRware)

This tool provides all words directly before and after a user-specified word, based on the desired context of words, lines or sentences. The results can be sorted alphabetically, by frequency, or by Z-score (an indication of how far and in what direction that item deviates from its distribution's mean, expressed in units of its distribution's standard deviation). HTML and plain text versions are also available within the TAPoRware toolsets. This tool’s functionality has been incorporated into Voyant available online at www.voyant-tools.org.

Rated 5.0 out of 5.

Search

Comparator - Plain Text (TAPoRware)

This tool compares two documents by comparing the words in each according to user specifications. HTML and XML versions are also available in the TAPoRware toolsets. This tool’s functionality has been incorporated into Voyant available online at www.voyant-tools.org

Rated 5.0 out of 5.

Natural Language Processing

NLTK 3.3 (Natural Language Toolkit)

NLTK 2.0 (Natural Language Tooklt) is a free, open source collection of Python modules, linguistic data and documentation for research and development in natural language processing and text analytics, with distributions for Windows, Mac OS X and Linux. It offers a platform for building Python programs to work with human language data, and integrates a guide to programming fundamentals.

Rated 5.0 out of 5.

Search

Pundit

Pundit is a cloud service that allows users to 'take notes' on web documents, like a web page or a PDF file. It consists of a set of components, amongst them the Annotator, a free extension for the Google Chrome browser used by users to create the annotations. Annotations can be highlights of text parts or comments, applied either on a selection of the text or on the whole document. It is also possible to create annotations to tag a selected text or an entire web page. Pundit supports semantic annotations, real RDF triples (subject - predicate -> object) to specify formal, structured and reusable statements associated to the annotated content.

Rated 5.0 out of 5.

Visualization

Gephi

Gephi is a free, open source interactive visualization and data exploration tool. Users can manipulate the display to uncover new facets of the data, enabling intutive exploration.

Rated 5.0 out of 5.

Visualization

TextArc

TextArc is a free visualization tool that represents an entire text on a single page. It has elements of an index, concordance and summary all in one place, encouraging the viewer to use its juxtapositions to uncover meaning. The web-based applet is preloaded with thousands of text collected from Project Gutenberg. Note: TextArc was designed for browsers circa 2002 and requires Java SE 6 to run.

Rated 5.0 out of 5.

Analysis

Textalyser

Textalyser is a free web-based text analysis tool offered by the Bernhard Huber Internet Engineering Company. Users can paste text into the provided entry field, upload a file or provide a URL for analysis. Textalyser provides detailed statistics on the text to determine subject, analyse word groupings, determine keyword density and deterimine the most prominent phrase. The Textalyser website is no longer available as of late 2014. It has been captured by the Internet Archive, and can still be viewed there.

Rated 5.0 out of 5.

Natural Language Processing

TUSTEP

TUSTEP (Tubingen System of Text Processing Tools) is a free, open source, widely-used toolbox for text processing. It is aimed at scholarly audiences, can work with texts in both latin and non-latin scripts, and is primarily designed for humanites applications. Its modules include data capture, information retrieval, text collation, text analysis, sorting and ordering, rule-based textual manipulation, data export and typesetting. The user manual is only available in German at this time. This tool has been in continuous development since the 1960s.

Rated 5.0 out of 5.