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Issuecrawler

Issuecrawler is a free, web-based tool for performing co-link analysis on URLs, and generating a cluster graph of the results. Its options include snowball crawling for up to three degrees of separation, and inter-actor crawling. Users must request a free account before using the tool.

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Analysis

Compare Networks Over Time

Compare Networks Over Time is a free, web-based tool for comparing Issuecrawler networks, or data from a regularly scheduled crawl. The tool displays ranked actor lists for each comparison, in a format suitable for graphing via spreadsheet software. Tool input must be in XML format. Compare Networks Over Time is designed to be used particularly with output from the Govcom Foundation's Issuecrawler tool.

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Analysis

Ranked Deep Pages from Core Issue Crawler Network

The Ranked Deep Pages from Core Issue Crawler Network is a free, web-based tool for ranking pages based on inlink counts from a user-supplied Issuecrawler XML file. It outputs a three-column table with numbers, the inlink count from the core network, and the inlink count from the periphery of the network.

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BookLamp Labs: Stream Graph Viewer

BookLamp's Stream Graph Viewer is a tool for viewing where and how much of a story element ('StoryDNA') appears in a book. Books can be searched by title or author, and then graphed for one or several pieces of StoryDNA.

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BookLamp Labs: StoryDNA Viewer

BookLamp's StoryDNA Viewer is a corpus search tool designed to find all books sharing a user-selected set of characteristics ('StoryDNA'). From the resultant list, users can then view a book's entry in BookLamp to get more information about what characteristics it has, in what proportion, and in relation to other books in the database.

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BookLamp Labs: Suggestion Viewer

BookLamp's Suggestion Viewer is a faceted search and browser tool for finding new books based on how similar they are to another book. Users can search by either title or author and select the book to center the search on. The Suggestion Viewer then generates a radial visualization of other books similar to the central book, showing the strength of the connection by the thickness of the connecting line and characteristic ('StoryDNA'). Users can switch between StoryDNA connections via drop list, and can click on an outer book to recenter the tool on that book. BookLamp and its tools have been retired as of April 2014 and the website is no longer available. The main site has been captured by the Internet Archive ( https://web.archive.org/web/20140210212627/http://booklamp.org/ ) but this tool is not among the pages available there.

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BookLamp Labs: Sentiment Viewer

BookLamp's Sentiment Viewer is a visualization tool that graphs out a book's sentiments according to intensity and location in the text. Books to graph can be searched by title or author.

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Visualization

Weka (Waikato Environment for Knowledge Analysis)

Weka (Waikato Environment for Knowledge Analysis) is a free Java-based data mining workbench of machine learning algorithms, offered by the Machine Learning Group of the University of Waikato. It includes tools for data pre-processing, classification, clustering and visualization, among others. Development on Weka began in the early 1990s and it is extensively documented.

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Visualization

Textometrica

Textometrica is a free, web based text analysis tool offered by HUMlab at Umeå University. Users can upload a plain-text file and examine its word frequencies, see co-occurrences, and generate visualizations and graphs.

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Visualization

SIMILE Widgets: Welkin

Welkin is a free tool for visualizing complex RDF models offered for download by the SIMILE Project. Rather than permitting users to focus on specific nodes, it provides analytical views such as an overview of a dataset's connectivity or potential mappings between resources and ontologies. It runs best through Java WebStart and is compatible with Windows, OS X and Linux.

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