Theory of the topical coverage of multiple databases | Zendy

Egghe L. | Zendy

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Theory of the topical coverage of multiple databases

Author(s) -

Egghe L.

Publication year - 2013

Publication title -

journal of the american society for information science and technology

Language(s) - English

Resource type - Journals

eISSN - 1532-2890

pISSN - 1532-2882

DOI - 10.1002/asi.22766

Subject(s) - fraction (chemistry) , limiting , generalization , computer science , function (biology) , usability , database , information retrieval , mathematics , mechanical engineering , mathematical analysis , chemistry , organic chemistry , human–computer interaction , evolutionary biology , engineering , biology

We present a model that describes which fraction of the literature on a certain topic we will find when we use n ( n = 1, 2, …) databases. It is a generalization of the theory of discovering usability problems. We prove that, in all practical cases, this fraction is a concave function of n , the number of used databases, thereby explaining some graphs that exist in the literature. We also study limiting features of this fraction for n very high and we characterize the case that we find all literature on a certain topic for n high enough.

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