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From Sean Owen <>
Subject Re: Big Longs in RecommenderJob
Date Mon, 07 Jun 2010 22:39:53 GMT
Yeah the problem is that signed values are zig-zag encoded into an
unsigned value, which loses 1 bit, in addition to losing another bit
by mapping to unsigned values.

Still there is definitely a way to make it work; the encoding is
certainly defined for larger values and there is a need for it. I can
work on the right fix.

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