1979 ◽  
Vol 2 (1) ◽  
pp. 17-41
Author(s):  
Michał Jaegermann

In the paper is developed a theory of information storage and retrieval systems which arise in situations when a whole possessed information amounts to a fact that a given document has some feature from properly chosen set. Such systems are described as suitable maps from descriptor algebras into sets of subsets of sets of documents. Since descriptor algebras turn out to be pseudo-Boolean algebras, hence an “inner logic” of our systems is intuitionistic. In the paper is given a construction of systems and are considered theirs properties. We will show also (in Part II) a formalized theory of such systems.


2021 ◽  
Vol 70 ◽  
pp. 24-33
Author(s):  
Johnatan Aljadeff ◽  
Maxwell Gillett ◽  
Ulises Pereira Obilinovic ◽  
Nicolas Brunel

1981 ◽  
Vol 3 (5) ◽  
pp. 227-233 ◽  
Author(s):  
K.P. Broadbent

China has suffered from over a decade of turmoil which has prevented the development of modern information ser vices. Present policy stresses the role of information storage and retrieval in national development. Apart from technical and political constraints, China faces a serious handicap with its unique written language, where the 5000 plus characters needed to express scientific and technical concepts are too large to be handled cost-effectively by present computers. This report outlines ways in which China is currently attempt ing to meet these problems and provide for modern informa tion services by the end of the decade.


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