Update README.md

README.md

@@ -144,6 +144,58 @@ The dataset is organized into the following subsets:
 - **Original Source**: [dataunitylab/json-schema-store](https://huggingface.co/datasets/dataunitylab/json-schema-store)
 
 
+## Dataset Validation and Filtering
+
+To ensure the quality and validity of the JSON schemas in each split, a filtering process was applied to remove invalid schemas. The following statistics summarize the filtering results for each subset:
+
+- **Washington Post**: 
+  - Dropped: 0/125 invalid schemas
+  - Kept: 125/125 valid schemas
+
+- **Snowplow**: 
+  - Dropped: 6/420 invalid schemas
+  - Kept: 414/420 valid schemas
+
+- **Kubernetes**: 
+  - Dropped: 0/1087 invalid schemas
+  - Kept: 1087/1087 valid schemas
+
+- **Github**: 
+  - Dropped: 380/6335 invalid schemas
+  - Kept: 5955/6335 valid schemas
+
+- **Handwritten**: 
+  - Dropped: 50/197 invalid schemas
+  - Kept: 147/197 valid schemas
+
+- **Synthesized**: 
+  - Dropped: 35/450 invalid schemas
+  - Kept: 415/450 valid schemas
+
+- **Github Trivial**: 
+  - Dropped: 37/570 invalid schemas
+  - Kept: 533/570 valid schemas
+
+- **Github Easy**: 
+  - Dropped: 59/2035 invalid schemas
+  - Kept: 1976/2035 valid schemas
+
+- **Github Medium**: 
+  - Dropped: 112/2121 invalid schemas
+  - Kept: 2009/2121 valid schemas
+
+- **Github Hard**: 
+  - Dropped: 139/1405 invalid schemas
+  - Kept: 1266/1405 valid schemas
+
+- **Github Ultra**: 
+  - Dropped: 33/204 invalid schemas
+  - Kept: 171/204 valid schemas
+
+- **JSON Schema Store (JsonSchemaStore)**: 
+  - Dropped: 59/650 invalid schemas
+  - Kept: 591/650 valid schemas
+
 ## Citation
 
 The datasets listed above are featured in the paper "Witness Generation for JSON Schema." We extend our gratitude to the authors for their valuable contributions. For more detailed information about the datasets and the methods used, please refer to the paper: [Witness Generation for JSON Schema](https://arxiv.org/abs/2202.12849).