> ## Documentation Index
> Fetch the complete documentation index at: https://docs.hystersis.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Search Modes

> Different search modes in Hystersis

# Search Modes

Hystersis provides multiple search modes for different use cases.

## Semantic Search

Vector-based similarity search:

```python theme={null}
results = client.search(
    query="artificial intelligence",
    limit=10,
    threshold=0.7
)
```

## Hybrid Search

Combines semantic and keyword search:

```python theme={null}
results = client.hybrid_search(
    query="machine learning",
    semantic_limit=10,
    keyword_limit=10,
    boost=1.5
)
```

## Advanced Search

Complex filters with AND/OR/NOT:

```python theme={null}
results = client.advanced_search(
    filters={
        "logic": "AND",
        "rules": [
            {"field": "category", "operator": "eq", "value": "preferences"},
            {"field": "importance", "operator": "gte", "value": "high"}
        ]
    }
)
```

## Search Parameters

| Parameter   | Description      | Default  |
| ----------- | ---------------- | -------- |
| `query`     | Search query     | Required |
| `limit`     | Max results      | 10       |
| `threshold` | Min score (0-1)  | 0.5      |
| `rerank`    | Enable reranking | false    |
| `user_id`   | Filter by user   | -        |

## Reranking

Improve results with reranking:

```python theme={null}
results = client.search(
    query="ML algorithms",
    rerank=True,
    rerank_top_k=20
)
```