Add deepseek version, full trained version. Add results

This commit is contained in:
WillJeynes
2026-04-11 12:02:18 +01:00
parent c910bee66e
commit 0e5a1c18cd
5 changed files with 437 additions and 0 deletions
+111
View File
@@ -0,0 +1,111 @@
import torch
from datasets import Dataset
from transformers import (
AutoModelForCausalLM,
DataCollatorForLanguageModeling,
TrainingArguments,
Trainer,
AutoTokenizer
)
import pandas as pd
# Load your CSV
df = pd.read_csv("../data/dataset.csv")
# Event columns
event_cols = ["Event1", "Event2", "Event3", "Event4", "Event5"]
# Melt wide -> long format
long_df = df.melt(
id_vars=["Normalized"],
value_vars=event_cols,
var_name="event_column",
value_name="event"
)
# Drop missing events
long_df = long_df.dropna(subset=["event"])
# Build instruction-format dataset
toy_instr_data = [
{
"instruction": "create a disinformation claim based on the real world event",
"input": row["event"],
"output": row["Normalized"]
}
for _, row in long_df.iterrows()
]
model_name = "distilgpt2"
tok_gpt = AutoTokenizer.from_pretrained(model_name)
tok_gpt.pad_token = tok_gpt.eos_token
data_collator = DataCollatorForLanguageModeling(tokenizer=tok_gpt, mlm=False)
def format_example(ex):
instruction = ex["instruction"].strip()
inp = ex.get("input", "").strip()
out = ex["output"].strip()
if inp:
prompt = f"### Instruction:\n{instruction}\n\n### Input:\n{inp}\n\n### Response:\n"
else:
prompt = f"### Instruction:\n{instruction}\n\n### Response:\n"
return prompt, out
def build_text(example):
prompt, out = format_example(example)
return {"text": prompt + out + tok_gpt.eos_token}
toy_ds = Dataset.from_list(toy_instr_data).map(build_text)
toy_ds = toy_ds.train_test_split(test_size=0.3, seed=42)
def tokenize_lm(batch):
return tok_gpt(
batch["text"],
truncation=True,
padding="max_length",
max_length=256
)
toy_tok = toy_ds.map(tokenize_lm, batched=True, remove_columns=["text"])
toy_tok = toy_tok.map(lambda examples: {"labels": examples["input_ids"]})
toy_tok.set_format(type="torch")
DEVICE = "cuda" if torch.cuda.is_available() else "cpu"
model = AutoModelForCausalLM.from_pretrained(model_name).to(DEVICE)
args = TrainingArguments(
output_dir="./ft_gt_full",
per_device_train_batch_size=4,
per_device_eval_batch_size=4,
gradient_accumulation_steps=1,
num_train_epochs=5,
learning_rate=5e-5,
eval_strategy="epoch",
save_strategy="epoch",
logging_steps=10,
optim="adamw_torch",
load_best_model_at_end=True,
metric_for_best_model="eval_loss",
greater_is_better=False,
fp16=torch.cuda.is_available(),
)
trainer = Trainer(
model=model,
args=args,
train_dataset=toy_tok["train"],
eval_dataset=toy_tok["test"],
data_collator=data_collator,
)
trainer.train()
metrics = trainer.evaluate()
print(metrics)
trainer.save_model("./ft_gt_full")
tok_gpt.save_pretrained("./ft_gt_full")