r02n8100029
r02n8100029
r02n8100029
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3<br />
<br />
2 <br />
<br />
<br />
3.1 <br />
tobler <br />
3.1.1 <br />
MDS<br />
<br />
<br />
<br />
<br />
<br />
<br />
2 <br />
1 <br />
<br />
i <br />
j 2 <br />
d ≥ 0 d = 0 i = j<br />
(3.1)<br />
ij<br />
ij<br />
d ij = d ji<br />
(3.2)<br />
d<br />
ij<br />
+ d ≥ d<br />
(3.3)<br />
jk<br />
ik<br />
3 d <br />
32