Cohere

Milvus supporta i modelli di reranker Cohere attraverso la classe CohereRerankFunction. Questa funzionalità consente di attribuire un punteggio alla rilevanza delle coppie query-documento in modo efficace.

Per utilizzare questa funzionalità, installare le dipendenze necessarie:

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

Quindi, istanziare la 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
)

Parametri

• model_name (stringa)

  Il nome del modello da usare. È possibile specificare uno qualsiasi dei nomi dei modelli di reranker Cohere disponibili, ad esempio rerank-english-v3.0, rerank-multilingual-v3.0, ecc. Se si lascia questo parametro non specificato, verrà utilizzato rerank-english-v2.0. Per un elenco dei modelli disponibili, consultare Rerank.

• api_key (stringa)

  La chiave API per accedere all'API di Cohere. Per informazioni su come creare una chiave API, consultare la dashboard di Cohere.

Quindi, utilizzare il codice seguente per rerankare i documenti in base alla query:

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")

Il risultato atteso è simile al seguente:

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.