In the example in Figure 1.2 the first document can be related to a library in KPU but it is most likely not the university library because the term ‘university’ does not occur in it. Document 2 can be related to KPU University but not to the library while the third document is related to ‘KPU’, ‘University’ and ‘Library’.
The exact method of storing the documents representations can vary from system to system, but the Boolean Information Retrieval requires a method to verify whether a term is relevant to a document or not (e.g. whether it occurs in the document or – for