perf(mathy_alpha_sm): slightly more trained multi-task model

 - ~25k steps across a few models and training sessions. Started with poly, moved on to multi-task poly/complex/binomial

libraries/mathy_alpha_sm/mathy_alpha_sm/model.config.json

@@ -1,21 +1,21 @@
 {
   "name": "mathy_alpha_sm",
   "version": "0.5.1",
-  "description": "Mathy.ai trained model",
+  "description": "Mathy.ai multi-task small model",
   "license": "CC BY-SA 3.0",
   "author": "Justin DuJardin",
   "email": "justin@dujardinconsulting.com",
   "url": "https://mathy.ai",
-  "mathy_version": ">=0.0.0,<1.0.0",
+  "mathy_version": ">=0.5.1,<1.0.0",
   "units": 512,
   "embedding_units": 512,
   "lstm_units": 128,
   "topics": [
-    "poly"
+    "poly",
+    "binomial",
+    "complex"
   ],
   "difficulty": "easy",
-  "model_dir": "./training/alpha_piv_new",
-  "model_name": "model",
   "init_model_from": null,
   "train": false,
   "verbose": false,
@@ -30,7 +30,7 @@
   "use_term_order": false,
   "use_tree_complexity": false,
   "use_grouping_control": true,
-  "clip_grouping_control": true,
+  "clip_grouping_control": false,
   "use_env_features": false,
   "use_node_values": true,
   "update_gradients_every": 64,
@@ -49,4 +49,4 @@
   "teacher_evaluation_steps": 20,
   "teacher_promote_wins": 0.95,
   "teacher_demote_wins": 0.6
-}
+}