Knowledge discovery — good or bad?

Most people have some awareness that computer algorithms can be used to extract useful knowledge from large amounts of data. This is the basis of customer relationship management, which is used by many businesses to evaluate (?improve) the quality of their interactions with their customers, both individuals and other businesses. This way of extracting knowledge is called knowledge discovery or data mining.

Most people have some intuitive idea of how this might work — after all humans are extremely good at extracting knowledge from certain kinds of data themselves. However, people tend to jump quite quickly to one of two diametrically opposite assumptions about how knowledge discovery works.

The first is a dystopian view — knowledge extraction technology can be used to learn everything about individuals from their social gaffes to their deepest thoughts. With this kind of power, governments will be unable to resist and will use knowledge discovery as a tool for control, in the style imagined in 1984. A variation on this theme is that knowledge discovery only looks effective and so will seduce governments and others into spending vast amount of money and collecting huge datasets without any payback.

The second is a utopian view — knowledge extraction technology will make every interaction as efficient as possible, and will prevent all of the bad things in the world from happening.

The truth, of course, is somewhere between these two extremes. There are many powerful things that knowledge discovery can do, some of them non-obvious; but this requires careful thought about the process, and, potentially, considerable cost. We are a long way from using knowledge discovery to improve the collection of library fines.

There are serious issues around the intrusiveness of data collection for knowledge discovery. Many of these issues are less difficult and more manageable than they appear on the surface. The question of whether knowledge discovery is good or bad is more nuanced than almost all of the discussion about it would suggest. Stay tuned.



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