Add CharacterBERT(medical) model

config.json

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+{
+  "architectures": [
+    "CharacterBertModel"
+  ],
+  "attention_probs_dropout_prob": 0.1,
+  "character_embeddings_dim": 16,
+  "cnn_activation": "relu",
+  "cnn_filters": [
+    [
+      1,
+      32
+    ],
+    [
+      2,
+      32
+    ],
+    [
+      3,
+      64
+    ],
+    [
+      4,
+      128
+    ],
+    [
+      5,
+      256
+    ],
+    [
+      6,
+      512
+    ],
+    [
+      7,
+      1024
+    ]
+  ],
+  "hidden_act": "gelu",
+  "hidden_dropout_prob": 0.1,
+  "hidden_size": 768,
+  "initializer_range": 0.02,
+  "intermediate_size": 3072,
+  "layer_norm_eps": 1e-12,
+  "max_position_embeddings": 512,
+  "max_word_length": 50,
+  "mlm_vocab_size": 100000,
+  "model_type": "character_bert",
+  "num_attention_heads": 12,
+  "num_hidden_layers": 12,
+  "num_highway_layers": 2,
+  "tie_word_embeddings": false,
+  "type_vocab_size": 2
+}

pytorch_model.bin

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+version https://git-lfs.github.com/spec/v1
+oid sha256:df985d92f0dfad42742d3f685d7497a2d83e762be3b24e55322cfa5d6b043d03
+size 418464323

special_tokens_map.json

@@ -0,0 +1 @@
+{"unk_token": "[UNK]", "sep_token": "[SEP]", "pad_token": "[PAD]", "cls_token": "[CLS]", "mask_token": "[MASK]"}

tokenizer_config.json

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+{"max_word_length": 50, "do_lower_case": true, "do_basic_tokenize": true, "unk_token": "[UNK]", "sep_token": "[SEP]", "pad_token": "[PAD]", "cls_token": "[CLS]", "mask_token": "[MASK]"}