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Natural Language Processing

Profiler Plus

Profiler Plus is a commercial general-purpose text analysis program based on natural language processing. It supports multiple languages and can output in text, XML and CSV.

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Visualization

Crawdad Text Analysis Software

Crawdad is a commercial software package for qualitative data analysis based on natural language processing. It generates a network model of a text and calculates word influence based on its position within the network. It also includes visualization, classification and comparator features. A trial version is available by request. The Crawdad website is no longer maintained or available. It can still be viewed via the Internet Archive.

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Visualization

Tropes

Tropes is a legacy commercial text analysis tool now available for free. It is designed for natural language processing and semantic classification, including chronological analysis of sequential pieces of text and summarization. It includes a graphical interface and can generate a variety of hypertext-based graphs.

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Analysis

Yoshikoder

Yoshikoder is a free, open source cross-platform content analysis program. It works with text documents to apply basic content analysis in any language, examine KWIC, generate summaries and generate content analysis dictionaries.

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Natural Language Processing

Lexa

Lexa is a free legacy set of programs for corpus processing. It is designed to tag and lemmatize texts or series of texts. The website for Lexa is no longer maintained or active, but may still be viewed via the Internet Archive.

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Natural Language Processing

TABARI (Text Analysis By Augmented Replacement Instructions)

TABARI (Text Analysis By Augmented Replacement Instructions) is a legacy open-source successor to the KEDS program, written in C++ and maintained online to the present in an OS X edition. It runs in the Terminal command prompt, and is designed for analyzing short news stories such as wire service reports. It can determine who is acting against whom, the action and extract the date of the release.

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Search

Ethnograph

Ethnograph is a long-standing legacy software package, maintained into the present, for quantitative analysis and data management. It contains features for search, applying metadata and conducting corpus analysis.

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Search

SALT (Statistic Analysis of Language Transcripts)

SALT (Systemic Analysis of Language Transcripts) is a commercial software package for working with large datasets derived from transcripts. It includes transcription tools, text analysis based on natural language processing, content analysis, classification, and statistics. The Research version includes expanded search and metadata functions, and common text analysis functions such as word lists. A trial version is available.

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Visualization

Voyant RezoViz

Voyant RezoViz is a free, web-based tool in the Voyant toolset for visualizing the relationships between people, locations and organizations in a text or collection of texts.

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Analysis

TEXTPACK V

TEXTPACK V is a historic collection of interrelated text analysis utilities first released for mainframe computers in the 1970s. With the fifth edition, released in the 1980s, it was ported from FORTRAN to run on PC.

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