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README.md
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# HillStreet: A Relational Dataset for Evaluating Information Channels in Congressional Trading
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**HillStreet** is a large-scale, longitudinal dataset and multimodal dynamic graph formalizing the intersection of Capitol Hill and Wall Street. It spans **13.5 years** of mandatory STOCK Act disclosures (July 2012–December 2025), unifying the congressional trading ecosystem into a single, machine-learning-ready framework.
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## Dataset Summary
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The dataset represents the relationship between **1,137 legislators** and **6,825 companies**. By framing congressional trading as a **dynamic bipartite graph**, HillStreet allows researchers to treat trade signal validation as an edge classification task.
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- **Nodes:** Legislators (session-specific) and Publicly Traded Companies.
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- **Target Edges:** Individual stock trades.
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- **Structural Edges:** Lobbying records, campaign finance (PAC/527) contributions, and geographical/industrial-constituency alignments.
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## Dataset Structure
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HillStreet is divided into pre-built graph objects for deep learning and a relational tabular database accessed via Hugging Face configurations.
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### 1. Dynamic Graph Objects (`.pt` & `.npy`)
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For immediate use in Graph Neural Networks (GNNs) and Temporal Graph Networks (TGNs), the core of HillStreet consists of annual **PyTorch Geometric Temporal** objects.
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- **Graph Files:** `hillstreet_temporal_graph_YEAR.pt`
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- **Temporal Integrity:** Every node feature and edge is instantiated based on its **public disclosure date**, not its reference date, ensuring a look-ahead-bias-free environment for backtesting.
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- **Node Features:** Includes rolling DW-NOMINATE scores, SEC fiscal facts, and Census district employment statistics.
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- **ID Mappings:** `src_id_map.npy` (Legislator Bioguide IDs) and `dst_id_map.npy` (Company Tickers).
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### 2. Relational Tables (Hugging Face Configs)
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For researchers using flat-feature models (XGBoost, LightGBM) or custom graph builders, the structural connective tissue is provided as multiple dataset configurations. You can load these individually using the Hugging Face `datasets` library (e.g., `load_dataset("benroodman/HillStreet", "processed_events_lobbying")`).
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**Processed Edge Tables:**
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- **Corporate & Industry:** `raw_sec_financials`, `raw_naics_*` crosswalks, and `raw_district_industries_*` configs.
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- **Lobbying:** `raw_lobbyview_*` configs.
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## Feature Engineering & Normalization
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To stabilize variance in graph training, continuous features are transformed using signed log-scaling:
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$$x' = \text{sign}(x) \times \log(1 + |x|)$$
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## Intended Use
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- **Trade Signal Validation:** Determining if a trade constitutes a meaningful price signal based on political context.
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- **Graph Representation Learning:** A benchmark for GNNs and TGNs.
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---
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|
| 187 |
+
## HillStreet: A Relational Dataset for Evaluating Information Channels in Congressional Trading
|
| 188 |
|
| 189 |
**HillStreet** is a large-scale, longitudinal dataset and multimodal dynamic graph formalizing the intersection of Capitol Hill and Wall Street. It spans **13.5 years** of mandatory STOCK Act disclosures (July 2012–December 2025), unifying the congressional trading ecosystem into a single, machine-learning-ready framework.
|
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|
| 191 |
+
### Dataset Summary
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The dataset represents the relationship between **1,137 legislators** and **6,825 companies**. By framing congressional trading as a **dynamic bipartite graph**, HillStreet allows researchers to treat trade signal validation as an edge classification task.
|
| 193 |
|
| 194 |
- **Nodes:** Legislators (session-specific) and Publicly Traded Companies.
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| 195 |
- **Target Edges:** Individual stock trades.
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| 196 |
- **Structural Edges:** Lobbying records, campaign finance (PAC/527) contributions, and geographical/industrial-constituency alignments.
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| 197 |
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| 198 |
+
### Dataset Structure
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| 199 |
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| 200 |
HillStreet is divided into pre-built graph objects for deep learning and a relational tabular database accessed via Hugging Face configurations.
|
| 201 |
|
| 202 |
+
#### 1. Dynamic Graph Objects (`.pt` & `.npy`)
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For immediate use in Graph Neural Networks (GNNs) and Temporal Graph Networks (TGNs), the core of HillStreet consists of annual **PyTorch Geometric Temporal** objects.
|
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- **Graph Files:** `hillstreet_temporal_graph_YEAR.pt`
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| 205 |
- **Temporal Integrity:** Every node feature and edge is instantiated based on its **public disclosure date**, not its reference date, ensuring a look-ahead-bias-free environment for backtesting.
|
| 206 |
- **Node Features:** Includes rolling DW-NOMINATE scores, SEC fiscal facts, and Census district employment statistics.
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| 207 |
- **ID Mappings:** `src_id_map.npy` (Legislator Bioguide IDs) and `dst_id_map.npy` (Company Tickers).
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+
#### 2. Relational Tables (Hugging Face Configs)
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For researchers using flat-feature models (XGBoost, LightGBM) or custom graph builders, the structural connective tissue is provided as multiple dataset configurations. You can load these individually using the Hugging Face `datasets` library (e.g., `load_dataset("benroodman/HillStreet", "processed_events_lobbying")`).
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**Processed Edge Tables:**
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- **Corporate & Industry:** `raw_sec_financials`, `raw_naics_*` crosswalks, and `raw_district_industries_*` configs.
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- **Lobbying:** `raw_lobbyview_*` configs.
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+
### Feature Engineering & Normalization
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To stabilize variance in graph training, continuous features are transformed using signed log-scaling:
|
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$$x' = \text{sign}(x) \times \log(1 + |x|)$$
|
| 227 |
|
| 228 |
+
### Intended Use
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- **Trade Signal Validation:** Determining if a trade constitutes a meaningful price signal based on political context.
|
| 230 |
- **Graph Representation Learning:** A benchmark for GNNs and TGNs.
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| 231 |
|