---
tags:
- spacy
- token-classification
language:
- en
model-index:
- name: en_chemner
  results:
  - task:
      name: NER
      type: token-classification
    metrics:
    - name: NER Precision
      type: precision
      value: 0.9906542056
    - name: NER Recall
      type: recall
      value: 0.9636363636
    - name: NER F Score
      type: f_score
      value: 0.9769585253
widget:
- text: "Cinammaldehyde is a fragrant compound found in cinammon. Arachidic acid, also known as icosanoic acid, is a saturated fatty acid with a 20-carbon chain. Triptane is commonly used as an anti-knock additive in aviation fuels. Benzophenone is a widely used building block in organic chemistry, being the parent diarylketone. Geraniol is a monoterpenoid and an alcohol. It is the primary component of citronella oil and is a primary component of rose oil, palmarosa oil."
---
| Feature | Description |
| --- | --- |
| **Name** | `en_chemner` |
| **Version** | `1.0.0` |
| **spaCy** | `>=3.6.1,<3.7.0` |
| **Default Pipeline** | `tok2vec`, `ner` |
| **Components** | `tok2vec`, `ner` |
| **Vectors** | 514157 keys, 514157 unique vectors (300 dimensions) |
| **Sources** | n/a |
| **License** | n/a |
| **Author** | [n/a]() |

### Label Scheme

<details>

<summary>View label scheme (7 labels for 1 components)</summary>

| Component | Labels |
| --- | --- |
| **`ner`** | `ALCOHOL`, `ALDEHYDE`, `ALKANE`, `ALKENE`, `ALKYNE`, `C_ACID`, `KETONE` |

</details>

### Accuracy

| Type | Score |
| --- | --- |
| `ENTS_F` | 97.70 |
| `ENTS_P` | 99.07 |
| `ENTS_R` | 96.36 |
| `TOK2VEC_LOSS` | 151.95 |
| `NER_LOSS` | 259.22 |