5bae0f23cf
In moving to a pointer mixture network from a traditional language model I had initially decreased model lookback to 50 tokens to facilitate faster model training iteration. Now that we've landed on a configuration that works well, increasing lookback to 100 tokens improves accuracy further. I also went ahead and followed a recommendation from Jacob to oversample Flutter sources since they're greatly underrrepresented in our training corpus compared to our users' code at prediction time. Change-Id: I885ddb606270394198f3aca2554e381f4465bdae Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/124083 Reviewed-by: Brian Wilkerson <brianwilkerson@google.com> Commit-Queue: Ari Aye <ariaye@google.com>