Youth, Pornography and the Internet: Can We Provide Sound Choices in a Safe Environment?
Youth, Pornography and the Internet: Can We Provide Sound Choices in a Safe Environment?
Performance analysis of filtering software using signal detection theory
Decision Support Systems
Commercial Internet filters: Perils and opportunities
Decision Support Systems
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Surveys in the U.S. have found that 95% of schools [4], 43% of public libraries [5], and 33% of teenagers' parents [8] employ filtering software to block access to pornography and other inappropriate content. Many products are also now available to filter out spam email.Filtering software, however, cannot perfectly discriminate between allowed and forbidden content, resulting in two types of errors. First, under-blocking occurs when content is not blocked that should be restricted. Second, over-blocking occurs when content is blocked that should not have been restricted. Steps can be taken to reduce the frequency of errors, and to reduce their costs (for example, by providing easy appeals processes, quick overrides, and corrections) but some errors are inevitable.