Cohere

O Milvus suporta os modelos de reranker Cohere através da classe CohereRerankFunction. Esta funcionalidade permite-lhe classificar a relevância dos pares consulta-documento de forma eficaz.

Para utilizar esta funcionalidade, instale as dependências necessárias:

pip install --upgrade pymilvus
pip install "pymilvus[model]"

De seguida, instanciar a classe CohereRerankFunction:

from pymilvus.model.reranker import CohereRerankFunction

# Define the rerank function
cohere_rf = CohereRerankFunction(
    model_name="rerank-english-v3.0",  # Specify the model name. Defaults to `rerank-english-v2.0`.
    api_key=COHERE_API_KEY # Replace with your Cohere API key
)

Parâmetros

• model_name (string)

  O nome do modelo a utilizar. Pode especificar qualquer um dos nomes de modelo de reranker Cohere disponíveis, por exemplo, rerank-english-v3.0, rerank-multilingual-v3.0, etc. Se este parâmetro não for especificado, será utilizado rerank-english-v2.0. Para obter uma lista dos modelos disponíveis, consulte Rerank.

• api_key (string)

  A chave de API para acessar a API do Cohere. Para obter informações sobre como criar uma chave de API, consulte Painel de controle do Cohere.

Em seguida, use o código a seguir para classificar documentos com base na consulta:

query = "What event in 1956 marked the official birth of artificial intelligence as a discipline?"

documents = [
    "In 1950, Alan Turing published his seminal paper, 'Computing Machinery and Intelligence,' proposing the Turing Test as a criterion of intelligence, a foundational concept in the philosophy and development of artificial intelligence.",
    "The Dartmouth Conference in 1956 is considered the birthplace of artificial intelligence as a field; here, John McCarthy and others coined the term 'artificial intelligence' and laid out its basic goals.",
    "In 1951, British mathematician and computer scientist Alan Turing also developed the first program designed to play chess, demonstrating an early example of AI in game strategy.",
    "The invention of the Logic Theorist by Allen Newell, Herbert A. Simon, and Cliff Shaw in 1955 marked the creation of the first true AI program, which was capable of solving logic problems, akin to proving mathematical theorems."
]

results = cohere_rf(
    query=query,
    documents=documents,
    top_k=3,
)

for result in results:
    print(f"Index: {result.index}")
    print(f"Score: {result.score:.6f}")
    print(f"Text: {result.text}\n")

O resultado esperado é semelhante ao seguinte:

Index: 1
Score: 0.99691266
Text: The Dartmouth Conference in 1956 is considered the birthplace of artificial intelligence as a field; here, John McCarthy and others coined the term 'artificial intelligence' and laid out its basic goals.

Index: 3
Score: 0.8578872
Text: The invention of the Logic Theorist by Allen Newell, Herbert A. Simon, and Cliff Shaw in 1955 marked the creation of the first true AI program, which was capable of solving logic problems, akin to proving mathematical theorems.

Index: 0
Score: 0.3589146
Text: In 1950, Alan Turing published his seminal paper, 'Computing Machinery and Intelligence,' proposing the Turing Test as a criterion of intelligence, a foundational concept in the philosophy and development of artificial intelligence.