第三題: 在預測(分類)某人是否會辦理信用卡(視為變數 C)的問題中,會辦理信用卡者視為 類別 1,不會辦理信用卡者視為類別 0。評估預測方法好壞會利用到混淆矩陣(confusion matrix)。其中有四種情況,如下: 請分別回答下列問題:
6.(20 pts) Consider a SMP processor (Symmetric Multiprocessor) adopting the Write-Invalidate Snooping Cache
Cohorence protocol. Each processor has a 4KiB direct-mapped, physically-addressed L1 cache with 16-byte cache lines. Three
integer arrays A, B and C are placed contiguously in the memory in the order of A, B and C. The starting address of array A is
0x0000A000 (assuming 32-bit memory address). Processor Po and P1 execute the following code segment (the L1 cache is
empty initially):