某一离散信道的信道矩阵为[img=358x247]17de8cec5d0b335.png[/img]其信道容量为( )bit/s.
A: log3
B: log4
C: log5
D: log6
A: log3
B: log4
C: log5
D: log6
举一反三
- 某一离散信道的信道矩阵为[img=358x247]17de8cec5d0b335.png[/img]其信道容量为( )bit/s. A: log3 B: log4 C: log5 D: log6
- 某一离散信道的信道矩阵为[img=358x247]1803b25eac7d349.png[/img]其信道容量为( )bit/s. A: log3 B: log4 C: log5 D: log6
- 求不定积分[img=115x46]17da65382f8e1b9.png[/img]; ( ) A: x - (5*log(x + 1))/4 - (3*log(x - 3)) B: (5*log(x + 1))/4 - (3*log(x - 3)) C: x - (5*log(x + 1))/4 - (3*log(x - 3))/4 D: (5*log(x + 1))/4 - (3*log(x - 3))/4
- 求不定积分[img=112x35]17da6538063a9e4.png[/img]; ( ) A: (x^4*log(x)^2)/4 + (x^4*(log(x) - 1/4))/ B: (x^4*log(x)^2)/4 - (x^4*(log(x) - 1/4))/8 C: (x^4*log(x)^2)/4 - (x^4*(log(x) - 1/4)) D: (x^4*log(x)^2)/4 + (x^4*(log(x) - 1/4))/8
- 以下是目标变量在训练集上的 8 个实际值 [0,0,0,1,1,1,1,1],目标变量的熵是所少() A: -(5/8 log(5/8) + 3/8 log(3/8)) B: 5/8 log(5/8) + 3/8 log(3/8) C: 3/8 log(5/8) + 5/8 log(3/8) D: 5/8 log(3/8) – 3/8 log(5/8)