Data Warehousing and Data Mining207810 marksSigned network
Write down any one advantage and disadvantage of MOLAP over ROLAP. Define signed network and how do you check whether it is balanced or not? How beam search reduces the space complexity? Illustrate with an example.
Write down any one advantage and disadvantage of MOLAP over ROLAP. Define signed network and how do you check whether it is balanced or not? How beam search reduces the space complexity? Illustrate with an example.[10]
--- Advantage of MOLAP over ROLAP: MOLAP stores data in a multidimensional cube (pre-aggregated), which allows faster query performance. Since data is pre-computed and stored in optimized multidimensional arrays, analytical queries are answered much more quickly compared to ROLAP, which must exec...