From 08f02bfadb1d9cf01e805a5aa19465029942f129 Mon Sep 17 00:00:00 2001
From: CG80499 <cg80492@gmail.com>
Date: Mon, 2 Oct 2023 20:00:18 +0000
Subject: [PATCH] latest evals

---
 .../chain_of_density_scoring_eval.py          | 99 +++++++++++++++++++
 1 file changed, 99 insertions(+)
 create mode 100644 libs/langchain/chain_of_density_scoring_eval.py

diff --git a/libs/langchain/chain_of_density_scoring_eval.py b/libs/langchain/chain_of_density_scoring_eval.py
new file mode 100644
index 00000000000..450c7f25ecc
--- /dev/null
+++ b/libs/langchain/chain_of_density_scoring_eval.py
@@ -0,0 +1,99 @@
+import asyncio
+from tqdm import tqdm
+from langchain.cache import SQLiteCache
+from dotenv import load_dotenv
+from datasets import load_dataset
+import langchain
+from langchain.prompts.chat import ChatPromptTemplate
+from langchain.chat_models.openai import ChatOpenAI
+from langchain.pydantic_v1 import BaseModel
+from langchain.output_parsers.json import SimpleJsonOutputParser
+from langchain.evaluation.scoring import ScoreStringEvalChain
+from langchain.callbacks.manager import get_openai_callback
+    
+class SummaryParser(SimpleJsonOutputParser):
+
+    def parse(self, text: str) -> str:
+        raw_json = super().parse(text)
+        return raw_json[-1]["Denser_Summary"]
+
+    @property
+    def _type(self) -> str:
+        return "summary_parser"
+
+langchain.llm_cache = SQLiteCache(database_path=".langchain.db")
+
+dataset = load_dataset("griffin/chain_of_density", "unannotated")
+
+load_dotenv()
+
+llm = ChatOpenAI(temperature=0, model="gpt-4-0613", max_retries=1000)
+
+ft_llm = ChatOpenAI(temperature=0, model="ft:gpt-3.5-turbo-0613:personal:cod-summarization:82oPBKod", max_retries=1000)
+
+class Sample(BaseModel):
+    article: str
+    starting_summary: str
+    final_summary: str
+
+
+samples: list[Sample] = []
+
+for sample in dataset["train"]:
+    samples.append(
+        Sample(
+            article=sample["article"],
+            starting_summary=sample["prediction"][0],
+            final_summary=sample["prediction"][-1],
+        )
+    )
+
+BASE_PROMPT = ChatPromptTemplate.from_template("""Write a VERY short summary of the Article. Do not exceed 70 words.
+                                               
+Article: {article}""")
+
+FT_PROMPT = ChatPromptTemplate.from_template("""Give a summary of the following article:\n\n{article}""")
+
+base_summarize_chaim = BASE_PROMPT | llm
+
+ft_summarize_chain = FT_PROMPT | ft_llm
+
+evaluator = ScoreStringEvalChain.from_llm(llm=llm)
+
+async def evaluate(sample: Sample) -> float:
+    #base_summary = (await base_summarize_chaim.ainvoke({"article": sample.article})).content
+    ft_summary = (await ft_summarize_chain.ainvoke({"article": sample.article})).content
+    result = await evaluator.aevaluate_strings(
+        input=f"Give a summary of the following article:\n\n{sample.article}",
+        prediction=ft_summary,
+    )
+    print("Summary:", ft_summary)
+    print("Reasoning:", result["reasoning"])
+    return result["score"]
+
+async def main() -> None:
+    pbar = tqdm(total=len(samples[:40]))
+    sempahore = asyncio.Semaphore(10)
+
+    async def boxed_evaluate(sample: Sample) -> str:
+        with get_openai_callback() as cb:
+            async with sempahore:
+                results = await evaluate(sample)
+                pbar.update(1)
+                print("Total cost:", cb.total_cost)
+                return results
+
+    results = await asyncio.gather(
+        *[boxed_evaluate(sample) for sample in samples[:40]]
+    )
+
+    print("Average score:", sum(results) / len(results))
+    
+if __name__ == "__main__":
+    asyncio.run(main())
+
+# N=40 With base summary
+# Average score: 6.4
+
+# N=40 With ft summary
+# Average score: 7.7
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