FrankHines-CheapUserModelingForAdaptiveSystems - For want...

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ORWANT 0018-8670/96/$5.00 1996 IBM IBM SYSTEMS JOURNAL, VOL 35, NOS 3&4, 1996 398 The more a computer knows about a user, the better it can serve that user. But there are different styles, and even philosophies, of how to teach our computers about us—about our habits, interests, patterns, and preferences. “Cheap” user modeling, the subject of this essay, simply means ascertaining a few bits of information about each user, processing that information quickly, and providing the results to applications, all without intruding upon the user’s consciousness. In short, there are techniques for personalization that can—and should—be built into today’s systems. Like most journal papers, this is a description of an existing system: DOPPELGÄNGER. But it is also an exhortation for readers to incorporate the described techniques and philosophy into their own systems. ser modeling is nothing more than a fancy term for automated personalization. Humans model each other all the time. I am modeling you as I write; my topics, presentation, and language are all aimed at a hypothetical, average reader of this jour- nal. If I have guessed well, you will enjoy this essay. If not, you will skip to the next one. That is what user modeling systems do—they make guesses, and hopefully educated ones, about their users. Of course, not all readers are the same, and what entices one reader may alienate another. Ideally, this essay would itself be adaptive, able to gauge the interests of individual readers and transform itself accordingly. But since that is not yet possible, I will employ some “cheap” user modeling. I will make a one-bit distinction between philosophy and engi- neering in this essay: after this paragraph, the left column contains the “big picture,” and the right col- umn contains details. (The separation is suspended for the section “A user modeling toolbox,” then resumes until the “Reprise.”) Read either column, or both, depending on your interests. U For want of a bit the user was lost: Cheap user modeling by J. Orwant © Copyright 1996 by International Business Machines Corpora- tion. Copying in printed form for private use is permitted without payment of royalty provided that (1) each reproduction is done without alteration and (2) the Journal reference and IBM copy- right notice are included on the first page. The title and abstract, but no other portions, of this paper may be copied or distributed royalty free without further permission by computer-based and other information-service systems. Permission to republish any other portion of this paper must be obtained from the Editor.
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IBM SYSTEMS JOURNAL, VOL 35, NOS 3&4, 1996 ORWANT 399 User modeling: Philosophy You have experienced user modeling, even if you did not know it at the time. Any application that behaves differently for different users employs a user model. The models themselves can be big or small, complex or simple, rich or sparse. They often have different names: personality profiles, psycho- graphic profiles, or consumer databases. They are all collections of information about an individual.
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This note was uploaded on 07/30/2011 for the course COP 4810 taught by Professor Staff during the Spring '11 term at University of Central Florida.

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FrankHines-CheapUserModelingForAdaptiveSystems - For want...

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