Update README.md

README.md

@@ -71,4 +71,146 @@ dataset_info:
     requiring models to handle reasoning across complex structures, numeric aggregation, and context-dependent 
     understanding. The `dataset_type` field indicates whether a sample is from the real world data sources
     (`realWorldHCTs`) or synthetically created (`syntheticHCTs`).
----
+---
+
+# HCT-QA: Human-Centric Tables Question Answering
+
+**HCT-QA** is a benchmark dataset designed to evaluate large language models (LLMs) on question answering over complex, human-centric tables (HCTs). These tables often appear in documents such as research papers, reports, and webpages and present significant challenges for traditional table QA due to their non-standard layouts and compositional structure.
+
+The dataset includes:
+
+- **2,188 real-world tables** with **9,835 human-annotated QA pairs**
+- **4,679 synthetic tables** with **67,500 programmatically generated QA pairs**
+- Logical and structural metadata for each table and question
+
+> 📄 **Paper**: [Title TBD]  
+> _The associated paper is currently under review and will be linked here once published._
+
+---
+
+## 📊 Dataset Splits
+
+| Config     | Split | # Examples (Placeholder) |
+|------------|-------|--------------------------|
+| RealWorld  | Train | 7,500                    |
+| RealWorld  | Test  | 2,335                    |
+| Synthetic  | Train | 55,000                   |
+| Synthetic  | Test  | 12,500                   |
+
+---
+
+## 🏆 Leaderboard
+
+| Model Name      | FT (Finetuned) | Recall | Precision |
+|-----------------|----------------|--------|-----------|
+| Model-A         | True           | 0.81   | 0.78      |
+| Model-B         | False          | 0.64   | 0.61      |
+| Model-C         | True           | 0.72   | 0.69      |
+
+> 📌 If you're evaluating on this dataset, open a pull request to update the leaderboard.
+
+---
+
+## Dataset Structure
+
+Each entry in the dataset is a dictionary with the following structure:
+
+### Sample Entry
+
+```json
+{
+  "table_id": "arxiv--1--1118",
+  "table_info": {
+    "table_csv_path": "../tables/csvs/arxiv--1--1118.csv",
+    "table_image_url": "https://hcsdtables.qcri.org/datasets/all_images/arxiv_1_1118.jpg",
+    "table_image_local_path": "../tables/images/arxiv--1--1118.jpg",
+    "table_properties": {
+      "Standard Relational Table": true,
+      "Row Nesting": false,
+      "Column Aggregation": false,
+      ...
+    },
+    "table_formats": {
+      "csv": ",0,1,2\n0,Domain,Average Text Length,Aspects Identified\n1,Journalism,50,44\n..."
+    }
+  },
+  "questions": [
+    {
+      "question_id": "arxiv--1--1118--M0",
+      "question": "Report the Domain and the Average Text Length where the Aspects Identified equals 72",
+      "gt": "{Psychology | 86} || {Linguistics | 90}",
+      "question_properties": {
+        "Row Filter": true,
+        "Aggregation": false,
+        "Returned Columns": true,
+        ...
+      }
+    }
+    ...
+  ]
+}
+```
+
+### Ground Truth Format
+
+<b> Explain the GT format here </b>  
+Example: {value1 | value2} || {value3 | value4}
+
+
+### Table Properties
+
+| Property Name                         | Definition |
+|--------------------------------------|------------|
+| Standard Relational Table            | TBD        |
+| Multi Level Column                   | TBD        |
+| Balanced Multi Level Column          | TBD        |
+| Symmetric Multi Level Column         | TBD        |
+| Unbalanced Multi Level Column        | TBD        |
+| Asymmetric Multi Level Column        | TBD        |
+| Column Aggregation                   | TBD        |
+| Global Column Aggregation            | TBD        |
+| Local Column-Group Aggregation       | TBD        |
+| Explicit Column Aggregation Terms    | TBD        |
+| Implicit Column Aggregation Terms    | TBD        |
+| Row Nesting                          | TBD        |
+| Balanced Row Nesting                 | TBD        |
+| Symmetric Row Nesting                | TBD        |
+| Unbalanced Row Nesting              | TBD        |
+| Asymmetric Row Nesting               | TBD        |
+| Row Aggregation                      | TBD        |
+| Global Row Aggregation               | TBD        |
+| Local Row-Group Aggregation          | TBD        |
+| Explicit Row Aggregation Terms       | TBD        |
+| Implicit Row Aggregation Terms       | TBD        |
+| Split Header Cell                    | TBD        |
+| Row Group Label                      | TBD        |
+
+### Question Properties
+
+| Property Name                          | Definition |
+|----------------------------------------|------------|
+| Row Filter                             | TBD        |
+| Row Filter Condition Type Lookup       | TBD        |
+| Row Filter Condition Type Expression   | TBD        |
+| Row Filter Involved Columns Single     | TBD        |
+| Row Filter Involved Columns Multiple   | TBD        |
+| Row Filter Max Depth Of Involved Columns | TBD      |
+| Row Filter Retained Rows Single        | TBD        |
+| Row Filter Retained Rows Multiple      | TBD        |
+| Row Filter Num Of Conditions           | TBD        |
+| Returned Columns                       | TBD        |
+| Returned Columns Project On Plain      | TBD        |
+| Returned Columns Project On Expression| TBD        |
+| Returned Columns Max Depth             | TBD        |
+| Returned Columns Expression In Table Present | TBD  |
+| Returned Columns Expression In Table Not Present | TBD |
+| Returned Columns Num Of Output Columns | TBD        |
+| Yes/No                                 | TBD        |
+| Aggregation                            | TBD        |
+| Aggregation Type Sum                   | TBD        |
+| Aggregation Type Avg                   | TBD        |
+| Aggregation Grouping Global            | TBD        |
+| Aggregation Grouping Local             | TBD        |
+| Rank                                   | TBD        |
+| Rank Type                              | TBD        |
+