Record visual conversion provenance and exclusions

provenance.json

@@ -0,0 +1,36 @@
+{
+  "source": "https://github.com/CogComp/perspectrum",
+  "revision": "b42c27b85f20f2a35c0a0895698fa242ccf160ab",
+  "source_hashes": {
+    "data/dataset/perspective_pool_v1.0.json": "d4d4e78c4777ea971d26546a8819aa9e02c5a68ffff45e10b40ca0cb91b43ae4",
+    "data/dataset/dataset_split_v1.0.json": "5ba5296f6e5956c44a2fd014b15a3f7c10b9a253451162932acaf217f20cd7da",
+    "data/dataset/perspectrum_with_answers_v1.0.json": "39d0391d26ebe21efb1cc3162abcc3c4212d2eadfb07514129c3015d6f6ae1f1"
+  },
+  "conversion_sha256": "32aec03d9c79ab7959747d178567b9fdb70e3b809a6882d797bf5d4fa88998b6",
+  "split_policy": "native claim partitions",
+  "license": "cc-by-sa-4.0",
+  "excluded_group_overlap": {
+    "test": 0,
+    "validation": 4,
+    "train": 38
+  },
+  "splits": {
+    "train": 2939,
+    "validation": 910,
+    "test": 1204
+  },
+  "label_counts": {
+    "train": {
+      "UNDERMINE": 1442,
+      "SUPPORT": 1497
+    },
+    "validation": {
+      "SUPPORT": 472,
+      "UNDERMINE": 438
+    },
+    "test": {
+      "SUPPORT": 635,
+      "UNDERMINE": 569
+    }
+  }
+}