Tools

Visualization

RAW

RAW is a free, open-source web application for creating visualizations that can be exported in SVG or PNG format and embedded into a website. Users can upload data with RAW's web interface and generate a variety of vector-based visualizations. RAW uses the D3.js library, and is maintained by the Density Design research studio at Polaitecnico di Milano.

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Analysis

SentiStrength

SentiStrength is a tool for sentiment analysis available for free to academic users (with registration), in Java and Windows-optimized versions. It estimates the strength of sentiment in short texts, and can handle informal language. Strength is expressed in a scale of 1 to 5 for positive sentiments, and -1 to -5 for negative; it also includes an option for assessing neutrality. SentiStrength is available for multiple languages, with extensibility for languages and contexts not already included. According to the developers, SentiStrength has human-level accuracy for short English texts. Commercial users must purchase a license.

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Analysis

Compare Lists

Compare Lists is a free, web-based tool for comparing text from two lists of URLs supplied by the user. This tool was developed and is maintained by the Digital Methods Initiative.

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Search

Google Blogsearch Scraper

The Google Blogsearch Scraper is a free, web-based tool for batch querying Google Blog Search. Users can submit a list of URLs to search, and a set of keywords to apply to them. For each query, the tool supplies a tag cloud and an HTML table, plus a text file that may be downloaded for further analysis.

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Search

Netvizz

Netvizz is a free, web-based tool for extracting datasets from Facebook. As the tool utilizes Facebook Apps, users must have a Facebook account to access it.

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Analysis

NetvizzToSentiStrength

NetvizzToSentiStrength is a free, web-based sentiment analysis tool for short texts, designed to work particularly with a Netvizz search of Facebook data. In addition to Netvizz data, it also accepts DMI-TCAT and CSV files.

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Search

Google News Scraper

Google News Scraper is a free, web-based tool for batch querying news.google.com. Users can specify search terms, news sources, date range, location, language, version of Google (ex. .com, .ca, .co.uk, etc.), and what facets to include in the output. The tool returns the results as a table suitable for further analysis, and can also include thumbnail images for each search item.

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Search

Googlescraper (Lippmannian Device)

Googlescraper (Lippmannian Device) is a free, web-based tool for querying Google and saving the results for analysis. It allow users to specify URLs, keywords, and which keywords apply to each URL. The tool outputs as HTML, a tag cloud, and a text file. The tool must be used with FireFox, and requires users to first install the DMI toolbar , which permits the tool to work around Google's block against automated requests.

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Search

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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