1 files changed, 23 insertions, 0 deletions
diff --git a/rag/llm/encoder.py b/rag/llm/encoder.py
new file mode 100644
index 0000000..d5e0566
--- /dev/null
+++ b/rag/llm/encoder.py
@@ -0,0 +1,23 @@
+import os
+from typing import List
+
+import numpy as np
+import ollama
+
+
+class Encoder:
+    def __init__(self) -> None:
+        self.model = os.environ["ENCODER_MODEL"]
+        self.query_prompt = "Represent this sentence for searching relevant passages: "
+
+    def __encode(self, prompt: str) -> np.ndarray:
+        x = ollama.embeddings(model=ENCODER_MODEL, prompt=prompt)
+        x = np.array([x["embedding"]]).astype("float32")
+        return x
+
+    def encode(self, doc: List[str]) -> List[np.ndarray]:
+        return [self.__encode(chunk) for chunk in doc]
+
+    def query(self, query: str) -> np.ndarray:
+        query = self.query_prompt + query
+        return self.__encode(query)