#1068We find that simple interpolation methods, like log-linear and linear interpolation, improve the performance but fall short of the performance of an oracle .
tech,1-3-H01-1058,ak
</term>
of an
<term>
oracle
</term>
. The
<term>
oracle
</term>
knows the
<term>
reference word string
#1071The oracle knows the reference word string and selects the word string with the best performance (typically, word or semantic error rate) from a list of word strings, where each word string has been obtained by using a different LM.
tech,3-4-H01-1058,ak
different
<term>
LM
</term>
. Actually , the
<term>
oracle
</term>
acts like a
<term>
dynamic combiner
#1118Actually, the oracle acts like a dynamic combiner with hard decisions using the reference.
tech,10-6-H01-1058,ak
method that mimics the behavior of the
<term>
oracle
</term>
using a
<term>
neural network
</term>
#1162We suggest a method that mimics the behavior of the oracle using a neural network or a decision tree.