Record visual conversion provenance and exclusions

provenance.json

@@ -0,0 +1,35 @@
+{
+  "source": "https://github.com/FakeNewsChallenge/fnc-1",
+  "revision": "29d473af2d15278f0464d5e41e4cbe7eb58231f2",
+  "source_hashes": {
+    "train_bodies.csv": "f1960cf7aa6972a9308aedbd3b393ab773893604d7d323378b75f66112f0c27a",
+    "train_stances.csv": "89d2e76db8ddb3a68d9dc7e572bc84c3cba7fb61827b3ee10925885245d7d167",
+    "competition_test_bodies.csv": "60c9eeb15b904764d2e6512eaea31c6edf148206867284a281e11c29c9919046",
+    "competition_test_stances.csv": "39d5c2572e61d2f65116fdd20183aeff533abaf26134078966c337e6a8ec3329"
+  },
+  "conversion_sha256": "32aec03d9c79ab7959747d178567b9fdb70e3b809a6882d797bf5d4fa88998b6",
+  "split_policy": "native train/competition-test, body-disjoint",
+  "license": "unspecified",
+  "excluded_group_overlap": {
+    "test": 0,
+    "train": 219
+  },
+  "splits": {
+    "train": 49753,
+    "test": 25413
+  },
+  "label_counts": {
+    "train": {
+      "unrelated": 36373,
+      "agree": 3675,
+      "disagree": 840,
+      "discuss": 8865
+    },
+    "test": {
+      "unrelated": 18349,
+      "agree": 1903,
+      "discuss": 4464,
+      "disagree": 697
+    }
+  }
+}