如果你在 Colab 中打开这个 Notebook，可能需要先安装 LlamaIndex 🦙。

%pip install llama-index-vector-stores-neptune

初始化 Neptune Analytics 向量封装

from llama_index.vector_stores.neptune import NeptuneAnalyticsVectorStore

graph_identifier = ""
embed_dim = 1536

neptune_vector_store = NeptuneAnalyticsVectorStore(
    graph_identifier=graph_identifier, embedding_dimension=1536
)

加载文档，构建 VectorStoreIndex

from llama_index.core import VectorStoreIndex, SimpleDirectoryReader
from IPython.display import Markdown, display

下载数据

!mkdir -p 'data/paul_graham/'
!wget 'https://raw.githubusercontent.com/run-llama/llama_index/main/docs/examples/data/paul_graham/paul_graham_essay.txt' -O 'data/paul_graham/paul_graham_essay.txt'

# load documents
documents = SimpleDirectoryReader("./data/paul_graham").load_data()

from llama_index.core import StorageContext

storage_context = StorageContext.from_defaults(
    vector_store=neptune_vector_store
)
index = VectorStoreIndex.from_documents(
    documents, storage_context=storage_context
)

query_engine = index.as_query_engine()
response = query_engine.query("What happened at interleaf?")
display(Markdown(f"<b>{response}</b>"))