| --- |
| license: cc-by-nc-sa-4.0 |
| tags: |
| - web-privacy |
| - tracker-detection |
| - feedforward |
| - safetensors |
| - webassembly |
| datasets: |
| - olafuraron/tracker-radar-ml |
| --- |
| |
| # Entity Cluster Classifier |
|
|
| Classifies third-party web domains into four behavioral entity types based on metadata and API usage patterns from DuckDuckGo's [Tracker Radar](https://github.com/duckduckgo/tracker-radar) dataset. |
|
|
| ## Live Preview |
|
|
| [Live preview](https://olafurjohannsson.github.io/tracker-ml/) |
|
|
| ## Labels |
|
|
| | Label | Description | |
| |---|---| |
| | `ad_tech` | Advertising, analytics, and tracking companies (Google, Microsoft, Adobe, etc.) | |
| | `cdn_infra` | CDN and infrastructure providers (Amazon, Akamai, Fastly, etc.) | |
| | `platform` | Hosting and platform services (Shopify, GitHub, etc.) | |
| | `ad_management` | Ad blocking and ad management tools | |
|
|
| ## Performance |
|
|
| - **Accuracy:** 75.2% |
| - **Weighted F1:** 0.767 |
| - **Training data:** 4,973 domains from Tracker Radar US region |
| - **Features:** 164 behavioral features (API usage, cookie behavior, prevalence, resource types) |
|
|
| ## Architecture |
|
|
| Feedforward neural network: 164 → 64 → 32 → 4 with ReLU activations and dropout (0.2). Model size: 50.3 KB. |
|
|
| Designed for on-device inference via [Kjarni](https://github.com/olafurjohannsson/kjarni) WebAssembly runtime with SIMD128 acceleration. |
|
|
| ## Usage |
|
|
| Features must be standardized using the provided scaler (mean and scale in `entity_cluster_classifier_scaler.json`) before inference. |
|
|
| ## Context |
|
|
| 57% of domains in Tracker Radar have no ownership information. This model predicts what type of entity a domain belongs to based purely on behavioral signals — no ownership metadata is used as input. See [TrackerML](https://github.com/olafurjohannsson/tracker-ml) for the full project. |
|
|
| ## Links |
|
|
| [Kjarni](https://kjarni.ai) |
|
|
| ## License |
|
|
| CC-BY-NC-SA 4.0 (derived from DuckDuckGo Tracker Radar). |
|
|
