Information Retrieval

Compute the vector space similarity between the query "digital cameras" and the document "digital cameras and video cameras" by filling out the empty columns in Table 6.1. Assume N = 10,000,000, logarithmic term weighting (wf columns) for query and document, idf weighting for the query only and cosine normalization for the document only. Treat and as a stop word. Enter term counts in the tf columns. What is the final similarity score? (Please provide the details of the calculation.) (15 points) Query Document Word | tf | wf | df | idf | qi =wf-idf | tf | wf | d. =normalized wf 10,000 100,000 50,000 video cameras