Trend Analysis of the Digital Library Community (21 Jan 2005)
Oddly, the term "user" (Figure 7), although highly general, has experienced a gradual decline in term frequency since its spikes in 1995 and 1998. Several hypothesis could be proposed to explain this phenomenon. New terms may have supplanted "user" to denote similar concepts, or this area is receiving less attention because it is generally considered to be a "solved" problem. A similar phenomenon may be observed for the term "image" which has experienced a declining frequency over the past 10 years.
Article URL: http://www.dlib.org/dlib/january05/bollen/01bollen.html
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