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SS2 MINIMUM STORAGE-TIME
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Sequencing on One Processor
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Sequencing on One Processor
SS1 M
AXIMUM
C
ONSTRAINED
S
EQUENCING
TO
M
INIMIZE
T
ARDY
T
ASK
W
EIGHT
I
NSTANCE
: Set
T
of tasks, for each task
a length
, a weight
, and a deadline
, a subset
, and a positive integer
K
.
S
OLUTION
: A one-processor schedule
for
T
such that the sum of
w(t)
, taken over all
for which
does not exceed
K
.
M
EASURE
: Cardinality of jobs in
S
completed by the deadline.
Bad News:
Not approximable within
for some
[
352
].
Garey and Johnson:
Similar to SS3
Viggo Kann
Mon Apr 21 13:07:14 MET DST 1997