Publications & Technical Reports | |
R261 | |
Deep Bucket Elimination
Yasaman Razeghi, Kalev Kask, Yadong Lu, Pierre Baldi, Sakshi Agarwal, and Rina Dechter.
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Abstract
Bucket Elimination (BE) is a universal inference
scheme that can solve most tasks over probabilistic
and deterministic graphical models exactly. However,
it often requires exponentially high levels of
memory (in the induced-width) preventing its execution.
In the spirit of exploiting Deep Learning
for inference tasks, in this paper, we will use neural
networks to approximate BE. The resulting Deep
Bucket Elimination (DBE) algorithm is developed
for computing the partition function. We provide a
proof-of-concept empirically using instances from
several different benchmarks, showing that DBE
can be a more accurate approximation than current
state-of-the-art approaches for approximating BE
(e.g. the mini-bucket schemes), especially when
problems are sufficiently hard.
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