Record visual conversion provenance and exclusions

provenance.json

@@ -0,0 +1,34 @@
+{
+  "source_url": "https://doi.org/10.6084/m9.figshare.4479563.v1",
+  "revision": "figshare-v1",
+  "license": "cc-by-4.0",
+  "license_scope": "Annotations CC BY 4.0; Twitter retains tweet-content rights",
+  "split_id_offset": 500000000000000000,
+  "excluded_by_reason": {
+    "does_not_apply": 975,
+    "span_mismatch": 1
+  },
+  "source_file_sha256": {
+    "tweets.tar.gz": "361458f1b73b102bee5f1f359db3f855be864a89c2263be88fada94a757ded1e",
+    "annotations.tar.gz": "d0e6ad59bf08aa0c33253b01657910161a1317d5bc728a3f5a6ed284b6532d8c",
+    "train_id.txt": "1878606601b45dae07a7b3f11a4752b28c7f25f85705b2f2bcce7bac2d8c2cb0",
+    "test_id.txt": "683d01f9fe366678a594a6ebe8b2b2d47eda08f14f501ea0c0a1ab45e32fdd63"
+  },
+  "conversion_sha256": "fbc08a38a81591dc9b8b255dd381fcc9bbbba0b001576ae0ff7e8307a1f9a5a3",
+  "splits": {
+    "train": 9911,
+    "test": 2675
+  },
+  "label_counts": {
+    "train": {
+      "neutral": 3722,
+      "positive": 1466,
+      "negative": 4723
+    },
+    "test": {
+      "neutral": 985,
+      "negative": 1291,
+      "positive": 399
+    }
+  }
+}