Commercial vs. Independent Content: Power and Scope

Regarding the dimension of their financial and human resources commercial media companies are at any rate much more powerful players than their independent counterparts. Still those reply with an extreme multiplicity and diversity. Today thousands of newsgroups, mailing-list and e-zines covering a wide range of issues from the environment to politics, social and human rights, culture, art and democracy are run by alternative groups.

Moreover independent content provider have started to use digital media for communication, information and co-ordination long before they were discovered by corporate interest. They regularly use the Internet and other networks to further public discourse and put up civic resistance. And in many cases are very successful with their work, as initiatives like widerst@ndMUND's (AT) co-ordination of the critics of the participation of the Freedom Party in the Austrian government via mailing-lists, an online-magazine and discussion forums, show.

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Expert system

Expert systems are advanced computer programs that mimic the knowledge and reasoning capabilities of an expert in a particular discipline. Their creators strive to clone the expertise of one or several human specialists to develop a tool that can be used by the layman to solve difficult or ambiguous problems. Expert systems differ from conventional computer programs as they combine facts with rules that state relations between the facts to achieve a crude form of reasoning analogous to artificial intelligence. The three main elements of expert systems are: (1) an interface which allows interaction between the system and the user, (2) a database (also called the knowledge base) which consists of axioms and rules, and (3) the inference engine, a computer program that executes the inference-making process. The disadvantage of rule-based expert systems is that they cannot handle unanticipated events, as every condition that may be encountered must be described by a rule. They also remain limited to narrow problem domains such as troubleshooting malfunctioning equipment or medical image interpretation, but still have the advantage of being much lower in costs compared with paying an expert or a team of specialists.

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