निम्नलिखित में से कौन सा सूचना विज्ञान के सिद्धांतों पर आधारित एक मानक गणितीय या संज्ञानात्मक सूचना पुनर्प्राप्ति (Information Retrieval) मॉडल नहीं है?

The representation and retrieval of classes whose boundaries are not precisely defined or are imprecise are dealt with by:

Given below are two statements: One is labelled as Assertion (A) and the other as Reason (R): Assertion (A): The Vector Space Model in IRS represents documents and queries as points or vectors in a multidimensional space. Reason (R): This allows computation of similarity between documents and queries using measures like Cosine Similarity. In light of the above statements, choose the most appropriate answer: