X-Git-Url: https://fleuret.org/cgi-bin/gitweb/gitweb.cgi?a=blobdiff_plain;f=tasks.py;h=29f1e5a783024a3948867d2ffc0dae8c71b09954;hb=2be22c9825d8aebe8d184e9501355a31318abf2b;hp=6b6b8f2a5ed055c3f80473f70fa7b0ac87f6a526;hpb=621231cc5bb94f983c556a1b450b66067bec4165;p=picoclvr.git

diff --git a/tasks.py b/tasks.py
index 6b6b8f2..29f1e5a 100755
--- a/tasks.py
+++ b/tasks.py
@@ -1944,13 +1944,14 @@ class Escape(Task):
         # Generate iteration after iteration
 
         optimistic_bias = result.new_zeros(self.nb_codes, device=result.device)
-        optimistic_bias[(-1) + escape.first_lookahead_rewards_code + 1] = math.log(1e-1)
-        optimistic_bias[(1) + escape.first_lookahead_rewards_code + 1] = math.log(1e1)
+        optimistic_bias[escape.lookahead_reward2code(-1)] = -math.log(1e1)
+        optimistic_bias[escape.lookahead_reward2code(1)] = math.log(1e1)
 
         for u in tqdm.tqdm(
             range(it_len, result.size(1) - it_len + 1, it_len), desc="thinking"
         ):
-            # Generate the lookahead_reward pessimistically
+            # Re-generate the lookahead_reward pessimistically in the
+            # previous iterations
             ar_mask = (t < u).long() * (t % it_len == index_lookahead_reward).long()
             ar(result, ar_mask, logit_biases=-optimistic_bias)
 
@@ -1958,7 +1959,8 @@ class Escape(Task):
             ar_mask = (t >= u).long() * (t < u + state_len).long()
             ar(result, ar_mask)
 
-            # Generate the lookahead_reward optimistically
+            # Re-generate the lookahead_reward optimistically in the
+            # previous iterations
             ar_mask = (t < u).long() * (t % it_len == index_lookahead_reward).long()
             ar(result, ar_mask, logit_biases=optimistic_bias)