run-llama / llama_index

LlamaIndex is a data framework for your LLM applications
https://docs.llamaindex.ai
MIT License
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[Question]: how to remove metadata ? #15582

Open OKC13 opened 3 weeks ago

OKC13 commented 3 weeks ago

Question Validation

Question

how to remove metadata ?

OKC13 commented 3 weeks ago

query_engine = RetrieverQueryEngine.from_args( streaming=False, retriever=hybrid_retriever,

text_qa_template=QA_PROMPT,

            node_postprocessors=[rerank_llm],
            response_synthesizer=response_synthesizer,
            llm=llm,
            similarity_top_k=5
        )
dosubot[bot] commented 3 weeks ago

To remove metadata in the context of using RetrieverQueryEngine, you can create a deep copy of the nodes and then filter out the metadata fields you want to exclude. Here is a code snippet to achieve this:

from copy import deepcopy

# Create a deep copy of the nodes
nodes_no_metadata = deepcopy(uber_nodes) + deepcopy(lyft_nodes)

# Remove all metadata except for "page_label" and "file_name"
for node in nodes_no_metadata:
    node.metadata = {
        k: node.metadata[k]
        for k in node.metadata
        if k in ["page_label", "file_name"]
    }

# Print the content to verify the metadata removal
print(
    "LLM sees:\n",
    (nodes_no_metadata)[9].get_content(metadata_mode=MetadataMode.LLM),
)

This code ensures that only the "page_label" and "file_name" metadata fields are retained, effectively removing all other metadata [1].

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