update model to v2: uses 270k papers and MLM

config.json

@@ -1,10 +1,10 @@
 {
-  "_name_or_path": "out/checkpoint-310114",
+  "_name_or_path": "out/checkpoint-450000",
   "architectures": [
     "BertModel"
   ],
   "attention_probs_dropout_prob": 0.1,
-  "gradient_checkpointing": false,
+  "classifier_dropout": null,
   "hidden_act": "gelu",
   "hidden_dropout_prob": 0.1,
   "hidden_size": 768,
@@ -17,7 +17,8 @@
   "num_hidden_layers": 12,
   "pad_token_id": 0,
   "position_embedding_type": "absolute",
-  "transformers_version": "4.8.2",
+  "torch_dtype": "float32",
+  "transformers_version": "4.12.3",
   "type_vocab_size": 2,
   "use_cache": true,
   "vocab_size": 31116

pytorch_model.bin

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:972da2f2d00be39a171b5665c94729670880bb72387c0226d88949f273ac8ea8
+oid sha256:20682ce6afeb95b70b6abd1c3d2d7f5109610445b6141b055c8e8b4d37f63dfa
 size 439832305