**Enhanced question-answering** is the process of creating the knowledge base and generating answers with LLMs(large language model), thus preventing illusions. It involves inserting data as knowledge base and querying questions, and **eqa-search** is used to query questions from knowledge base.
<br/>
## Code Example
### **Create pipeline and set the configuration**
> More parameters refer to the Configuration.
```python
from towhee import AutoPipes, AutoConfig
config = AutoConfig.load_config('eqa-search')
config.collection_name = 'chatbot'
p = AutoPipes.pipeline('eqa-search', config=config)
res = p('https://raw.githubusercontent.com/towhee-io/towhee/main/README.md')
```
<br/>
## Enhanced QA Search Config
### Configuration for Sentence Embedding
***model (str):***
The model name in the sentence embedding pipeline, defaults to `'all-MiniLM-L6-v2'`.
You can refer to the above [Model(s) list ](https://towhee.io/tasks/detail/operator?field_name=Natural-Language-Processing&task_name=Sentence-Embedding)to set the model, some of these models are from [HuggingFace](https://huggingface.co/) (open source), and some are from [OpenAI](https://openai.com/) (not open, required API key).
***openai_api_key (str):***
The api key of openai, default to `None`.
This key is required if the model is from OpenAI, you can check the model provider in the above [Model(s) list](https://towhee.io/sentence-embedding/openai).
***embedding_device (int):***
The number of devices, defaults to `-1`, which means using the CPU.
If the setting is not `-1`, the specified GPU device will be used.
### Configuration for [Milvus](https://towhee.io/ann-search/milvus-client)
***host (str):***
Host of Milvus vector database, default is `'127.0.0.1'`.
***port (str):***
Port of Milvus vector database, default is `'19530'`.
***top_k (int):***
The number of nearest search results, defaults to 5.
***collection_name (str):***
The collection name for Milvus vector database.
***user (str):***
The user name for [Cloud user](https://zilliz.com/cloud), defaults to `None`.
***password (str):***
The user password for [Cloud user](https://zilliz.com/cloud), defaults to `None`.
<br/>
## Interface
Query a question from Milvus knowledge base.
**Parameters:**
- ***question (str):*** The question to query.
- ***history (List[str]):*** The chat history to provide background information.
