Upload Instruction_finetuning_on_domain_specific_dataset.ipynb
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Instruction_finetuning_on_domain_specific_dataset.ipynb
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| 1 |
+
{
|
| 2 |
+
"cells": [
|
| 3 |
+
{
|
| 4 |
+
"cell_type": "markdown",
|
| 5 |
+
"metadata": {
|
| 6 |
+
"id": "kV67ewlS_iQQ"
|
| 7 |
+
},
|
| 8 |
+
"source": [
|
| 9 |
+
"Pretrain model(LLAMA)\n",
|
| 10 |
+
"\n",
|
| 11 |
+
"Non-instruction finetuning on plaine text\n",
|
| 12 |
+
"\n",
|
| 13 |
+
"intruction finetuning on instruciton dataset\n",
|
| 14 |
+
"\n",
|
| 15 |
+
"prefrence aligment\n"
|
| 16 |
+
]
|
| 17 |
+
},
|
| 18 |
+
{
|
| 19 |
+
"cell_type": "code",
|
| 20 |
+
"execution_count": null,
|
| 21 |
+
"metadata": {
|
| 22 |
+
"id": "y6yvA3-vQeJp"
|
| 23 |
+
},
|
| 24 |
+
"outputs": [],
|
| 25 |
+
"source": [
|
| 26 |
+
"from transformers import AutoTokenizer, AutoModelForCausalLM, TrainingArguments, Trainer\n",
|
| 27 |
+
"from peft import LoraConfig, get_peft_model, TaskType\n",
|
| 28 |
+
"from datasets import load_dataset"
|
| 29 |
+
]
|
| 30 |
+
},
|
| 31 |
+
{
|
| 32 |
+
"cell_type": "code",
|
| 33 |
+
"execution_count": null,
|
| 34 |
+
"metadata": {
|
| 35 |
+
"id": "1RGTcD2-SZNY"
|
| 36 |
+
},
|
| 37 |
+
"outputs": [],
|
| 38 |
+
"source": [
|
| 39 |
+
"model = \"TinyLlama/TinyLlama-1.1B-intermediate-step-1431k-3T\""
|
| 40 |
+
]
|
| 41 |
+
},
|
| 42 |
+
{
|
| 43 |
+
"cell_type": "code",
|
| 44 |
+
"execution_count": null,
|
| 45 |
+
"metadata": {
|
| 46 |
+
"id": "NiYmDvVESKuk"
|
| 47 |
+
},
|
| 48 |
+
"outputs": [],
|
| 49 |
+
"source": [
|
| 50 |
+
"tokenizer = AutoTokenizer.from_pretrained(model)\n",
|
| 51 |
+
"if tokenizer.pad_token is None:\n",
|
| 52 |
+
" tokenizer.pad_token = tokenizer.eos_token"
|
| 53 |
+
]
|
| 54 |
+
},
|
| 55 |
+
{
|
| 56 |
+
"cell_type": "code",
|
| 57 |
+
"execution_count": null,
|
| 58 |
+
"metadata": {
|
| 59 |
+
"id": "mIJF6oYdHrnY"
|
| 60 |
+
},
|
| 61 |
+
"outputs": [],
|
| 62 |
+
"source": [
|
| 63 |
+
"import zipfile\n",
|
| 64 |
+
"import os\n",
|
| 65 |
+
"# Path to your zip file\n",
|
| 66 |
+
"zip_path = \"/content/tinyllama-lora.zip\"\n",
|
| 67 |
+
"\n",
|
| 68 |
+
"# Extract all files\n",
|
| 69 |
+
"with zipfile.ZipFile(zip_path, 'r') as zip_ref:\n",
|
| 70 |
+
" zip_ref.extractall()"
|
| 71 |
+
]
|
| 72 |
+
},
|
| 73 |
+
{
|
| 74 |
+
"cell_type": "code",
|
| 75 |
+
"execution_count": null,
|
| 76 |
+
"metadata": {
|
| 77 |
+
"id": "AHrg04tQQUZD"
|
| 78 |
+
},
|
| 79 |
+
"outputs": [],
|
| 80 |
+
"source": [
|
| 81 |
+
"model_path = \"/content/checkpoint-5\""
|
| 82 |
+
]
|
| 83 |
+
},
|
| 84 |
+
{
|
| 85 |
+
"cell_type": "code",
|
| 86 |
+
"execution_count": null,
|
| 87 |
+
"metadata": {
|
| 88 |
+
"id": "w2tCUu_4QV_d"
|
| 89 |
+
},
|
| 90 |
+
"outputs": [],
|
| 91 |
+
"source": [
|
| 92 |
+
"non_instruction_model = AutoModelForCausalLM.from_pretrained(model_path, device_map=\"auto\")"
|
| 93 |
+
]
|
| 94 |
+
},
|
| 95 |
+
{
|
| 96 |
+
"cell_type": "code",
|
| 97 |
+
"execution_count": null,
|
| 98 |
+
"metadata": {
|
| 99 |
+
"id": "LEFPopA0QXjO"
|
| 100 |
+
},
|
| 101 |
+
"outputs": [],
|
| 102 |
+
"source": [
|
| 103 |
+
"prompt = \"Clinical trials demonstrated that combining Atorvastatin with Ezetimibe\""
|
| 104 |
+
]
|
| 105 |
+
},
|
| 106 |
+
{
|
| 107 |
+
"cell_type": "code",
|
| 108 |
+
"execution_count": null,
|
| 109 |
+
"metadata": {
|
| 110 |
+
"id": "I18lSYjBQY1l"
|
| 111 |
+
},
|
| 112 |
+
"outputs": [],
|
| 113 |
+
"source": [
|
| 114 |
+
"inputs = tokenizer(prompt, return_tensors=\"pt\").to(\"cuda\")"
|
| 115 |
+
]
|
| 116 |
+
},
|
| 117 |
+
{
|
| 118 |
+
"cell_type": "code",
|
| 119 |
+
"execution_count": null,
|
| 120 |
+
"metadata": {
|
| 121 |
+
"id": "NJuadbIZQaG1"
|
| 122 |
+
},
|
| 123 |
+
"outputs": [],
|
| 124 |
+
"source": [
|
| 125 |
+
"outputs = non_instruction_model.generate(\n",
|
| 126 |
+
" **inputs,\n",
|
| 127 |
+
" max_new_tokens=100,\n",
|
| 128 |
+
" temperature=0.8,\n",
|
| 129 |
+
" top_p=0.9,\n",
|
| 130 |
+
" do_sample=True,\n",
|
| 131 |
+
" repetition_penalty=1.1\n",
|
| 132 |
+
")"
|
| 133 |
+
]
|
| 134 |
+
},
|
| 135 |
+
{
|
| 136 |
+
"cell_type": "code",
|
| 137 |
+
"execution_count": null,
|
| 138 |
+
"metadata": {
|
| 139 |
+
"id": "c7OfbSZ7QbS4"
|
| 140 |
+
},
|
| 141 |
+
"outputs": [],
|
| 142 |
+
"source": [
|
| 143 |
+
"print(\"\\nModel Output:\\n\")\n",
|
| 144 |
+
"print(tokenizer.decode(outputs[0], skip_special_tokens=True))"
|
| 145 |
+
]
|
| 146 |
+
},
|
| 147 |
+
{
|
| 148 |
+
"cell_type": "markdown",
|
| 149 |
+
"metadata": {
|
| 150 |
+
"id": "FK3-vj54UzZq"
|
| 151 |
+
},
|
| 152 |
+
"source": [
|
| 153 |
+
"We have learn till here"
|
| 154 |
+
]
|
| 155 |
+
},
|
| 156 |
+
{
|
| 157 |
+
"cell_type": "markdown",
|
| 158 |
+
"metadata": {
|
| 159 |
+
"id": "9yQMIiioU3yv"
|
| 160 |
+
},
|
| 161 |
+
"source": [
|
| 162 |
+
"Now lets start with instructin finetuning"
|
| 163 |
+
]
|
| 164 |
+
},
|
| 165 |
+
{
|
| 166 |
+
"cell_type": "markdown",
|
| 167 |
+
"metadata": {
|
| 168 |
+
"id": "fvpQ1lq4U8Np"
|
| 169 |
+
},
|
| 170 |
+
"source": [
|
| 171 |
+
"first of all lets inspect the data"
|
| 172 |
+
]
|
| 173 |
+
},
|
| 174 |
+
{
|
| 175 |
+
"cell_type": "markdown",
|
| 176 |
+
"metadata": {
|
| 177 |
+
"id": "92-j9pKfVAvT"
|
| 178 |
+
},
|
| 179 |
+
"source": [
|
| 180 |
+
"I am starting with inbuilt data"
|
| 181 |
+
]
|
| 182 |
+
},
|
| 183 |
+
{
|
| 184 |
+
"cell_type": "code",
|
| 185 |
+
"execution_count": null,
|
| 186 |
+
"metadata": {
|
| 187 |
+
"id": "2-HVtooZSjCG"
|
| 188 |
+
},
|
| 189 |
+
"outputs": [],
|
| 190 |
+
"source": [
|
| 191 |
+
"from datasets import load_dataset\n",
|
| 192 |
+
"dataset = load_dataset(\"Amod/mental_health_counseling_conversations\", split=\"train\")"
|
| 193 |
+
]
|
| 194 |
+
},
|
| 195 |
+
{
|
| 196 |
+
"cell_type": "code",
|
| 197 |
+
"execution_count": null,
|
| 198 |
+
"metadata": {
|
| 199 |
+
"id": "YgUFGjLiBEhC"
|
| 200 |
+
},
|
| 201 |
+
"outputs": [],
|
| 202 |
+
"source": [
|
| 203 |
+
"dataset"
|
| 204 |
+
]
|
| 205 |
+
},
|
| 206 |
+
{
|
| 207 |
+
"cell_type": "code",
|
| 208 |
+
"execution_count": null,
|
| 209 |
+
"metadata": {
|
| 210 |
+
"id": "26GpStv1VAIU"
|
| 211 |
+
},
|
| 212 |
+
"outputs": [],
|
| 213 |
+
"source": [
|
| 214 |
+
"def format_row(example):\n",
|
| 215 |
+
" question = example[\"Context\"]\n",
|
| 216 |
+
" answer = example[\"Response\"]\n",
|
| 217 |
+
" example[\"Text\"] = f\"[INST] {question} [/INST] {answer}\"\n",
|
| 218 |
+
" return example"
|
| 219 |
+
]
|
| 220 |
+
},
|
| 221 |
+
{
|
| 222 |
+
"cell_type": "code",
|
| 223 |
+
"execution_count": null,
|
| 224 |
+
"metadata": {
|
| 225 |
+
"id": "_pEGrNoDBoUe"
|
| 226 |
+
},
|
| 227 |
+
"outputs": [],
|
| 228 |
+
"source": [
|
| 229 |
+
"def format_row(example):\n",
|
| 230 |
+
" question = example[\"Context\"]\n",
|
| 231 |
+
" answer = example[\"Response\"]\n",
|
| 232 |
+
" example[\"Text\"] = f\"[Context] {question} [/Response] {answer}\"\n",
|
| 233 |
+
" return example"
|
| 234 |
+
]
|
| 235 |
+
},
|
| 236 |
+
{
|
| 237 |
+
"cell_type": "code",
|
| 238 |
+
"execution_count": null,
|
| 239 |
+
"metadata": {
|
| 240 |
+
"id": "ScCStp6aVHFV"
|
| 241 |
+
},
|
| 242 |
+
"outputs": [],
|
| 243 |
+
"source": [
|
| 244 |
+
"formatted_dataset = dataset.map(format_row)"
|
| 245 |
+
]
|
| 246 |
+
},
|
| 247 |
+
{
|
| 248 |
+
"cell_type": "code",
|
| 249 |
+
"execution_count": null,
|
| 250 |
+
"metadata": {
|
| 251 |
+
"id": "nN3Hz7OIVJIt"
|
| 252 |
+
},
|
| 253 |
+
"outputs": [],
|
| 254 |
+
"source": [
|
| 255 |
+
"formatted_dataset"
|
| 256 |
+
]
|
| 257 |
+
},
|
| 258 |
+
{
|
| 259 |
+
"cell_type": "code",
|
| 260 |
+
"execution_count": null,
|
| 261 |
+
"metadata": {
|
| 262 |
+
"id": "ld4UtoM8VKQR"
|
| 263 |
+
},
|
| 264 |
+
"outputs": [],
|
| 265 |
+
"source": [
|
| 266 |
+
"print(formatted_dataset[0][\"Text\"])"
|
| 267 |
+
]
|
| 268 |
+
},
|
| 269 |
+
{
|
| 270 |
+
"cell_type": "code",
|
| 271 |
+
"execution_count": null,
|
| 272 |
+
"metadata": {
|
| 273 |
+
"id": "sy2s0SMbVRCO"
|
| 274 |
+
},
|
| 275 |
+
"outputs": [],
|
| 276 |
+
"source": [
|
| 277 |
+
"import pandas as pd\n",
|
| 278 |
+
"\n",
|
| 279 |
+
"# Convert dataset to DataFrame\n",
|
| 280 |
+
"df = pd.DataFrame(dataset)"
|
| 281 |
+
]
|
| 282 |
+
},
|
| 283 |
+
{
|
| 284 |
+
"cell_type": "code",
|
| 285 |
+
"execution_count": null,
|
| 286 |
+
"metadata": {
|
| 287 |
+
"id": "HYdm2MP2Vf8R"
|
| 288 |
+
},
|
| 289 |
+
"outputs": [],
|
| 290 |
+
"source": [
|
| 291 |
+
"df"
|
| 292 |
+
]
|
| 293 |
+
},
|
| 294 |
+
{
|
| 295 |
+
"cell_type": "code",
|
| 296 |
+
"execution_count": null,
|
| 297 |
+
"metadata": {
|
| 298 |
+
"id": "9nsdheiLVgxo"
|
| 299 |
+
},
|
| 300 |
+
"outputs": [],
|
| 301 |
+
"source": [
|
| 302 |
+
"df.to_csv(\"mental_health_counseling_conversations.csv\", index=False)"
|
| 303 |
+
]
|
| 304 |
+
},
|
| 305 |
+
{
|
| 306 |
+
"cell_type": "code",
|
| 307 |
+
"execution_count": null,
|
| 308 |
+
"metadata": {
|
| 309 |
+
"id": "k1V1mePAWEBF"
|
| 310 |
+
},
|
| 311 |
+
"outputs": [],
|
| 312 |
+
"source": [
|
| 313 |
+
"df.to_json(\"mental_health_counseling_conversations.jsonl\", orient=\"records\", lines=True)"
|
| 314 |
+
]
|
| 315 |
+
},
|
| 316 |
+
{
|
| 317 |
+
"cell_type": "code",
|
| 318 |
+
"execution_count": null,
|
| 319 |
+
"metadata": {
|
| 320 |
+
"id": "13tKjSG-WlKp"
|
| 321 |
+
},
|
| 322 |
+
"outputs": [],
|
| 323 |
+
"source": [
|
| 324 |
+
"from datasets import load_dataset\n",
|
| 325 |
+
"\n",
|
| 326 |
+
"dataset = load_dataset(\"csv\", data_files=\"mental_health_counseling_conversations.csv\",split=\"train\")\n",
|
| 327 |
+
"dataset\n"
|
| 328 |
+
]
|
| 329 |
+
},
|
| 330 |
+
{
|
| 331 |
+
"cell_type": "code",
|
| 332 |
+
"execution_count": null,
|
| 333 |
+
"metadata": {
|
| 334 |
+
"id": "WQu6WGXyXVK4"
|
| 335 |
+
},
|
| 336 |
+
"outputs": [],
|
| 337 |
+
"source": [
|
| 338 |
+
"from datasets import load_dataset\n",
|
| 339 |
+
"\n",
|
| 340 |
+
"dataset = load_dataset(\"json\", data_files=\"mental_health_counseling_conversations.jsonl\", split=\"train\")\n",
|
| 341 |
+
"dataset"
|
| 342 |
+
]
|
| 343 |
+
},
|
| 344 |
+
{
|
| 345 |
+
"cell_type": "markdown",
|
| 346 |
+
"metadata": {
|
| 347 |
+
"id": "AvbovRSOXl1Q"
|
| 348 |
+
},
|
| 349 |
+
"source": [
|
| 350 |
+
"till here the data loading part is clear i think"
|
| 351 |
+
]
|
| 352 |
+
},
|
| 353 |
+
{
|
| 354 |
+
"cell_type": "markdown",
|
| 355 |
+
"metadata": {
|
| 356 |
+
"id": "FJrndn2NXp4s"
|
| 357 |
+
},
|
| 358 |
+
"source": [
|
| 359 |
+
"# now lets load our data"
|
| 360 |
+
]
|
| 361 |
+
},
|
| 362 |
+
{
|
| 363 |
+
"cell_type": "code",
|
| 364 |
+
"execution_count": null,
|
| 365 |
+
"metadata": {
|
| 366 |
+
"id": "mYCsSPovXbNB"
|
| 367 |
+
},
|
| 368 |
+
"outputs": [],
|
| 369 |
+
"source": [
|
| 370 |
+
"from datasets import load_dataset\n",
|
| 371 |
+
"\n",
|
| 372 |
+
"dataset = load_dataset(\"csv\", data_files=\"/content/pharma_instruction_data.csv\",split=\"train\")\n",
|
| 373 |
+
"dataset\n"
|
| 374 |
+
]
|
| 375 |
+
},
|
| 376 |
+
{
|
| 377 |
+
"cell_type": "code",
|
| 378 |
+
"execution_count": null,
|
| 379 |
+
"metadata": {
|
| 380 |
+
"id": "zUfbnBXoZb_i"
|
| 381 |
+
},
|
| 382 |
+
"outputs": [],
|
| 383 |
+
"source": [
|
| 384 |
+
"def format_example(example):\n",
|
| 385 |
+
" prompt = f\"### Instruction:\\n{example['instruction']}\\n### Input:\\n{example['input']}\\n### Response:\\n{example['output']}\"\n",
|
| 386 |
+
" return {\"text\": prompt}"
|
| 387 |
+
]
|
| 388 |
+
},
|
| 389 |
+
{
|
| 390 |
+
"cell_type": "code",
|
| 391 |
+
"execution_count": null,
|
| 392 |
+
"metadata": {
|
| 393 |
+
"id": "ndwidNYcZgJ4"
|
| 394 |
+
},
|
| 395 |
+
"outputs": [],
|
| 396 |
+
"source": [
|
| 397 |
+
"dataset = dataset.map(format_example)"
|
| 398 |
+
]
|
| 399 |
+
},
|
| 400 |
+
{
|
| 401 |
+
"cell_type": "code",
|
| 402 |
+
"execution_count": null,
|
| 403 |
+
"metadata": {
|
| 404 |
+
"id": "0-pbUgN_ZifL"
|
| 405 |
+
},
|
| 406 |
+
"outputs": [],
|
| 407 |
+
"source": [
|
| 408 |
+
"dataset"
|
| 409 |
+
]
|
| 410 |
+
},
|
| 411 |
+
{
|
| 412 |
+
"cell_type": "code",
|
| 413 |
+
"execution_count": null,
|
| 414 |
+
"metadata": {
|
| 415 |
+
"id": "Jn90WJ82Esks"
|
| 416 |
+
},
|
| 417 |
+
"outputs": [],
|
| 418 |
+
"source": [
|
| 419 |
+
"dataset['text'][0]"
|
| 420 |
+
]
|
| 421 |
+
},
|
| 422 |
+
{
|
| 423 |
+
"cell_type": "markdown",
|
| 424 |
+
"metadata": {
|
| 425 |
+
"id": "6l2f_4CuFK7K"
|
| 426 |
+
},
|
| 427 |
+
"source": [
|
| 428 |
+
"### Instruction:\\nExplain the mechanism of action of Metformin.\\n### Input:\\nNone\\n### Response:\\nMetformin activates AMP-activated protein kinase (AMPK), which increases glucose uptake and fatty-acid oxidation while inhibiting hepatic gluconeogenesis, thereby lowering blood glucose."
|
| 429 |
+
]
|
| 430 |
+
},
|
| 431 |
+
{
|
| 432 |
+
"cell_type": "code",
|
| 433 |
+
"execution_count": null,
|
| 434 |
+
"metadata": {
|
| 435 |
+
"id": "zexcb9pkZmmk"
|
| 436 |
+
},
|
| 437 |
+
"outputs": [],
|
| 438 |
+
"source": [
|
| 439 |
+
"if tokenizer.pad_token is None:\n",
|
| 440 |
+
" tokenizer.pad_token = tokenizer.eos_token"
|
| 441 |
+
]
|
| 442 |
+
},
|
| 443 |
+
{
|
| 444 |
+
"cell_type": "code",
|
| 445 |
+
"execution_count": null,
|
| 446 |
+
"metadata": {
|
| 447 |
+
"id": "O3Iik8n6ZrTt"
|
| 448 |
+
},
|
| 449 |
+
"outputs": [],
|
| 450 |
+
"source": [
|
| 451 |
+
"def tokenize_fn(example):\n",
|
| 452 |
+
" tokens = tokenizer(example[\"text\"], truncation=True, padding=\"max_length\", max_length=512)\n",
|
| 453 |
+
" tokens[\"labels\"] = tokens[\"input_ids\"].copy()\n",
|
| 454 |
+
" return tokens"
|
| 455 |
+
]
|
| 456 |
+
},
|
| 457 |
+
{
|
| 458 |
+
"cell_type": "code",
|
| 459 |
+
"execution_count": null,
|
| 460 |
+
"metadata": {
|
| 461 |
+
"id": "dgKLwnftZuDm"
|
| 462 |
+
},
|
| 463 |
+
"outputs": [],
|
| 464 |
+
"source": [
|
| 465 |
+
"tokenized = dataset.map(tokenize_fn, batched=True)"
|
| 466 |
+
]
|
| 467 |
+
},
|
| 468 |
+
{
|
| 469 |
+
"cell_type": "code",
|
| 470 |
+
"execution_count": null,
|
| 471 |
+
"metadata": {
|
| 472 |
+
"id": "mABCpJCVZwH9"
|
| 473 |
+
},
|
| 474 |
+
"outputs": [],
|
| 475 |
+
"source": [
|
| 476 |
+
"from peft import LoraConfig, get_peft_model, TaskType"
|
| 477 |
+
]
|
| 478 |
+
},
|
| 479 |
+
{
|
| 480 |
+
"cell_type": "markdown",
|
| 481 |
+
"metadata": {
|
| 482 |
+
"id": "Pr7zXzwwDeKB"
|
| 483 |
+
},
|
| 484 |
+
"source": [
|
| 485 |
+
"| Parameter | Meaning | Typical Value | Effect |\n",
|
| 486 |
+
"| ---------------- | --------------------------- | --------------------- | -------------------------------- |\n",
|
| 487 |
+
"| `task_type` | Model type (Causal/Seq2Seq) | `CAUSAL_LM` | Ensures correct integration |\n",
|
| 488 |
+
"| `r` | Rank of LoRA matrix | 4–16 | Controls trainable param size |\n",
|
| 489 |
+
"| `lora_alpha` | Scaling factor | 16–64 | Balances adaptation strength |\n",
|
| 490 |
+
"| `lora_dropout` | Dropout probability | 0.05 | Regularization |\n",
|
| 491 |
+
"| `target_modules` | Which layers to tune | `[\"q_proj\",\"v_proj\"]` | Trade-off between cost & quality |\n",
|
| 492 |
+
"| `bias` | Bias fine-tuning | `\"none\"` | Keep simple |\n"
|
| 493 |
+
]
|
| 494 |
+
},
|
| 495 |
+
{
|
| 496 |
+
"cell_type": "code",
|
| 497 |
+
"execution_count": null,
|
| 498 |
+
"metadata": {
|
| 499 |
+
"id": "MyvVjtxQZyRe"
|
| 500 |
+
},
|
| 501 |
+
"outputs": [],
|
| 502 |
+
"source": [
|
| 503 |
+
"lora_config = LoraConfig(\n",
|
| 504 |
+
" task_type=TaskType.CAUSAL_LM,\n",
|
| 505 |
+
" r=8,\n",
|
| 506 |
+
" lora_alpha=16,\n",
|
| 507 |
+
" lora_dropout=0.05,\n",
|
| 508 |
+
" target_modules=[\"q_proj\", \"v_proj\"],\n",
|
| 509 |
+
" bias=\"none\"\n",
|
| 510 |
+
")"
|
| 511 |
+
]
|
| 512 |
+
},
|
| 513 |
+
{
|
| 514 |
+
"cell_type": "code",
|
| 515 |
+
"execution_count": null,
|
| 516 |
+
"metadata": {
|
| 517 |
+
"id": "dklTp_ClZz2W"
|
| 518 |
+
},
|
| 519 |
+
"outputs": [],
|
| 520 |
+
"source": [
|
| 521 |
+
"instruction_model = get_peft_model(non_instruction_model, lora_config)"
|
| 522 |
+
]
|
| 523 |
+
},
|
| 524 |
+
{
|
| 525 |
+
"cell_type": "code",
|
| 526 |
+
"source": [
|
| 527 |
+
"# #STEP A: Load base model\n",
|
| 528 |
+
"# model = AutoModelForCausalLM.from_pretrained(...)\n",
|
| 529 |
+
"# #STEP B: Load Stage-1 LoRA\n",
|
| 530 |
+
"# model = PeftModel.from_pretrained(model, non_instruction_model)\n",
|
| 531 |
+
"# model = model.merge_and_unload()\n",
|
| 532 |
+
"# # Why merge?\n",
|
| 533 |
+
"# # → Model clean + LoRA applied inside weights\n",
|
| 534 |
+
"# # → Now you can attach SECOND LoRA cleanly\n",
|
| 535 |
+
"# #STEP C: Attach NEW LoRA for instruction\n",
|
| 536 |
+
"# instruction_model_lora = get_peft_model(model, lora_config)"
|
| 537 |
+
],
|
| 538 |
+
"metadata": {
|
| 539 |
+
"id": "AIA9IiyAjdVg"
|
| 540 |
+
},
|
| 541 |
+
"execution_count": null,
|
| 542 |
+
"outputs": []
|
| 543 |
+
},
|
| 544 |
+
{
|
| 545 |
+
"cell_type": "code",
|
| 546 |
+
"execution_count": null,
|
| 547 |
+
"metadata": {
|
| 548 |
+
"id": "Vv7jx-oiZ1XW"
|
| 549 |
+
},
|
| 550 |
+
"outputs": [],
|
| 551 |
+
"source": [
|
| 552 |
+
"args = TrainingArguments(\n",
|
| 553 |
+
" output_dir=\"./tinyllama-instruction\",\n",
|
| 554 |
+
" num_train_epochs=3,\n",
|
| 555 |
+
" per_device_train_batch_size=1,\n",
|
| 556 |
+
" gradient_accumulation_steps=8,\n",
|
| 557 |
+
" learning_rate=2e-4,\n",
|
| 558 |
+
" fp16=True,\n",
|
| 559 |
+
" logging_steps=20,\n",
|
| 560 |
+
" save_total_limit=1,\n",
|
| 561 |
+
" report_to=\"none\"\n",
|
| 562 |
+
")\n"
|
| 563 |
+
]
|
| 564 |
+
},
|
| 565 |
+
{
|
| 566 |
+
"cell_type": "code",
|
| 567 |
+
"execution_count": null,
|
| 568 |
+
"metadata": {
|
| 569 |
+
"id": "LS33JYr2aEgh"
|
| 570 |
+
},
|
| 571 |
+
"outputs": [],
|
| 572 |
+
"source": [
|
| 573 |
+
"trainer = Trainer(\n",
|
| 574 |
+
" model=instruction_model_lora,\n",
|
| 575 |
+
" args=args,\n",
|
| 576 |
+
" train_dataset=tokenized,\n",
|
| 577 |
+
")"
|
| 578 |
+
]
|
| 579 |
+
},
|
| 580 |
+
{
|
| 581 |
+
"cell_type": "code",
|
| 582 |
+
"execution_count": null,
|
| 583 |
+
"metadata": {
|
| 584 |
+
"id": "b_G3mkjNaF9Z"
|
| 585 |
+
},
|
| 586 |
+
"outputs": [],
|
| 587 |
+
"source": [
|
| 588 |
+
"trainer.train()"
|
| 589 |
+
]
|
| 590 |
+
},
|
| 591 |
+
{
|
| 592 |
+
"cell_type": "code",
|
| 593 |
+
"execution_count": null,
|
| 594 |
+
"metadata": {
|
| 595 |
+
"id": "8JSOmCudaIgw"
|
| 596 |
+
},
|
| 597 |
+
"outputs": [],
|
| 598 |
+
"source": [
|
| 599 |
+
"model_path = \"/content/tinyllama-instruction/checkpoint-3\""
|
| 600 |
+
]
|
| 601 |
+
},
|
| 602 |
+
{
|
| 603 |
+
"cell_type": "code",
|
| 604 |
+
"execution_count": null,
|
| 605 |
+
"metadata": {
|
| 606 |
+
"id": "8Jvb8S2YaSqS"
|
| 607 |
+
},
|
| 608 |
+
"outputs": [],
|
| 609 |
+
"source": [
|
| 610 |
+
"instruction_model = AutoModelForCausalLM.from_pretrained(model_path, device_map=\"auto\")"
|
| 611 |
+
]
|
| 612 |
+
},
|
| 613 |
+
{
|
| 614 |
+
"cell_type": "code",
|
| 615 |
+
"execution_count": null,
|
| 616 |
+
"metadata": {
|
| 617 |
+
"id": "-fTJep9PjuKI"
|
| 618 |
+
},
|
| 619 |
+
"outputs": [],
|
| 620 |
+
"source": [
|
| 621 |
+
"prompt = \"Explain the mechanism of action of Metformin.\""
|
| 622 |
+
]
|
| 623 |
+
},
|
| 624 |
+
{
|
| 625 |
+
"cell_type": "code",
|
| 626 |
+
"execution_count": null,
|
| 627 |
+
"metadata": {
|
| 628 |
+
"id": "cE9wb66VaUyC"
|
| 629 |
+
},
|
| 630 |
+
"outputs": [],
|
| 631 |
+
"source": [
|
| 632 |
+
"inputs = tokenizer(prompt, return_tensors=\"pt\").to(\"cuda\")"
|
| 633 |
+
]
|
| 634 |
+
},
|
| 635 |
+
{
|
| 636 |
+
"cell_type": "code",
|
| 637 |
+
"execution_count": null,
|
| 638 |
+
"metadata": {
|
| 639 |
+
"id": "_GD65ONCageB"
|
| 640 |
+
},
|
| 641 |
+
"outputs": [],
|
| 642 |
+
"source": [
|
| 643 |
+
"outputs = instruction_model.generate(\n",
|
| 644 |
+
" **inputs,\n",
|
| 645 |
+
" max_new_tokens=100,\n",
|
| 646 |
+
" temperature=0.8,\n",
|
| 647 |
+
" top_p=0.9,\n",
|
| 648 |
+
" do_sample=True,\n",
|
| 649 |
+
" repetition_penalty=1.1\n",
|
| 650 |
+
")"
|
| 651 |
+
]
|
| 652 |
+
},
|
| 653 |
+
{
|
| 654 |
+
"cell_type": "code",
|
| 655 |
+
"execution_count": null,
|
| 656 |
+
"metadata": {
|
| 657 |
+
"id": "xL1hUGXLahx7"
|
| 658 |
+
},
|
| 659 |
+
"outputs": [],
|
| 660 |
+
"source": [
|
| 661 |
+
"print(\"\\nModel Output:\\n\")\n",
|
| 662 |
+
"print(tokenizer.decode(outputs[0], skip_special_tokens=True))"
|
| 663 |
+
]
|
| 664 |
+
},
|
| 665 |
+
{
|
| 666 |
+
"cell_type": "markdown",
|
| 667 |
+
"metadata": {
|
| 668 |
+
"id": "ezmpbNmMbAIC"
|
| 669 |
+
},
|
| 670 |
+
"source": [
|
| 671 |
+
""
|
| 672 |
+
]
|
| 673 |
+
},
|
| 674 |
+
{
|
| 675 |
+
"cell_type": "code",
|
| 676 |
+
"execution_count": null,
|
| 677 |
+
"metadata": {
|
| 678 |
+
"id": "Can_M-CqeqVh"
|
| 679 |
+
},
|
| 680 |
+
"outputs": [],
|
| 681 |
+
"source": [
|
| 682 |
+
"from datasets import load_dataset\n",
|
| 683 |
+
"from transformers import AutoTokenizer, AutoModelForCausalLM, TrainingArguments, Trainer\n",
|
| 684 |
+
"from peft import LoraConfig, get_peft_model, TaskType\n",
|
| 685 |
+
"import torch\n",
|
| 686 |
+
"\n",
|
| 687 |
+
"# Load dataset\n",
|
| 688 |
+
"dataset = load_dataset(\"csv\", data_files=\"/content/pharma_instruction_data.csv\", split=\"train\")\n",
|
| 689 |
+
"print(dataset)\n",
|
| 690 |
+
"\n",
|
| 691 |
+
"\n",
|
| 692 |
+
"# Format dataset to Alpaca-style text\n",
|
| 693 |
+
"def format_example(example):\n",
|
| 694 |
+
" # Build unified instruction-style prompt\n",
|
| 695 |
+
" prompt = f\"### Instruction:\\n{example['instruction']}\\n### Input:\\n{example['input']}\\n### Response:\\n{example['output']}\"\n",
|
| 696 |
+
" return {\"text\": prompt}\n",
|
| 697 |
+
"\n",
|
| 698 |
+
"dataset = dataset.map(format_example)\n",
|
| 699 |
+
"print(dataset[0][\"text\"])\n",
|
| 700 |
+
"\n",
|
| 701 |
+
"\n",
|
| 702 |
+
"# Tokenizer setup\n",
|
| 703 |
+
"tokenizer = AutoTokenizer.from_pretrained(\"TinyLlama/TinyLlama-1.1B-Chat-v1.0\")\n",
|
| 704 |
+
"\n",
|
| 705 |
+
"if tokenizer.pad_token is None:\n",
|
| 706 |
+
" tokenizer.pad_token = tokenizer.eos_token\n",
|
| 707 |
+
"\n",
|
| 708 |
+
"\n",
|
| 709 |
+
"# Tokenization with Response Masking\n",
|
| 710 |
+
"def tokenize_and_mask(example):\n",
|
| 711 |
+
" text = example[\"text\"]\n",
|
| 712 |
+
"\n",
|
| 713 |
+
" # Tokenize full text\n",
|
| 714 |
+
" enc = tokenizer(text, truncation=True, padding=\"max_length\", max_length=512)\n",
|
| 715 |
+
" input_ids = enc[\"input_ids\"]\n",
|
| 716 |
+
"\n",
|
| 717 |
+
" # Find where '### Response:' starts\n",
|
| 718 |
+
" response_marker = \"### Response:\"\n",
|
| 719 |
+
" response_start = text.find(response_marker)\n",
|
| 720 |
+
"\n",
|
| 721 |
+
" if response_start != -1:\n",
|
| 722 |
+
" # Token index where response begins\n",
|
| 723 |
+
" response_token_start = len(tokenizer(text[:response_start])[\"input_ids\"])\n",
|
| 724 |
+
" else:\n",
|
| 725 |
+
" response_token_start = 0 # if marker not found\n",
|
| 726 |
+
"\n",
|
| 727 |
+
" # Clone labels and mask out everything before 'Response'\n",
|
| 728 |
+
" labels = input_ids.copy()\n",
|
| 729 |
+
" labels[:response_token_start] = [-100] * response_token_start\n",
|
| 730 |
+
"\n",
|
| 731 |
+
" enc[\"labels\"] = labels\n",
|
| 732 |
+
" return enc\n",
|
| 733 |
+
"\n",
|
| 734 |
+
"# Apply tokenization\n",
|
| 735 |
+
"tokenized = dataset.map(tokenize_and_mask, batched=False)\n",
|
| 736 |
+
"print(\"Tokenization + masking done.\")\n",
|
| 737 |
+
"\n",
|
| 738 |
+
"\n",
|
| 739 |
+
"# LoRA config\n",
|
| 740 |
+
"lora_config = LoraConfig(\n",
|
| 741 |
+
" task_type=TaskType.CAUSAL_LM,\n",
|
| 742 |
+
" r=8,\n",
|
| 743 |
+
" lora_alpha=16,\n",
|
| 744 |
+
" lora_dropout=0.05,\n",
|
| 745 |
+
" target_modules=[\"q_proj\", \"v_proj\"],\n",
|
| 746 |
+
" bias=\"none\"\n",
|
| 747 |
+
")\n",
|
| 748 |
+
"\n",
|
| 749 |
+
"\n",
|
| 750 |
+
"# Load base model (previously non-instructional trained)\n",
|
| 751 |
+
"non_instructional_trained_model = AutoModelForCausalLM.from_pretrained(\n",
|
| 752 |
+
" \"path_to_your_non_instruction_model\",\n",
|
| 753 |
+
" torch_dtype=torch.float16,\n",
|
| 754 |
+
" device_map=\"auto\"\n",
|
| 755 |
+
")\n",
|
| 756 |
+
"\n",
|
| 757 |
+
"model = get_peft_model(non_instructional_trained_model, lora_config)\n",
|
| 758 |
+
"\n",
|
| 759 |
+
"# Training setup\n",
|
| 760 |
+
"args = TrainingArguments(\n",
|
| 761 |
+
" output_dir=\"./tinyllama-instruction\",\n",
|
| 762 |
+
" num_train_epochs=3,\n",
|
| 763 |
+
" per_device_train_batch_size=1,\n",
|
| 764 |
+
" gradient_accumulation_steps=8,\n",
|
| 765 |
+
" learning_rate=2e-4,\n",
|
| 766 |
+
" fp16=True,\n",
|
| 767 |
+
" logging_steps=20,\n",
|
| 768 |
+
" save_total_limit=1,\n",
|
| 769 |
+
" report_to=\"none\"\n",
|
| 770 |
+
")\n",
|
| 771 |
+
"\n",
|
| 772 |
+
"trainer = Trainer(\n",
|
| 773 |
+
" model=model,\n",
|
| 774 |
+
" args=args,\n",
|
| 775 |
+
" train_dataset=tokenized,\n",
|
| 776 |
+
")\n",
|
| 777 |
+
"\n",
|
| 778 |
+
"\n",
|
| 779 |
+
"# Train the model\n",
|
| 780 |
+
"trainer.train()\n",
|
| 781 |
+
"\n",
|
| 782 |
+
"\n",
|
| 783 |
+
"# Save & test the model\n",
|
| 784 |
+
"trainer.save_model(\"/content/tinyllama-instruction\")\n",
|
| 785 |
+
"tokenizer.save_pretrained(\"/content/tinyllama-instruction\")\n",
|
| 786 |
+
"\n",
|
| 787 |
+
"# Test generation\n",
|
| 788 |
+
"trained_model = AutoModelForCausalLM.from_pretrained(\"/content/tinyllama-instruction\", device_map=\"auto\")\n",
|
| 789 |
+
"\n",
|
| 790 |
+
"prompt = \"### Instruction:\\nWhat is Ezetimibe?\\n### Input:\\n\\n### Response:\\n\"\n",
|
| 791 |
+
"inputs = tokenizer(prompt, return_tensors=\"pt\").to(\"cuda\")\n",
|
| 792 |
+
"\n",
|
| 793 |
+
"outputs = trained_model.generate(\n",
|
| 794 |
+
" **inputs,\n",
|
| 795 |
+
" max_new_tokens=100,\n",
|
| 796 |
+
" temperature=0.8,\n",
|
| 797 |
+
" top_p=0.9,\n",
|
| 798 |
+
" do_sample=True,\n",
|
| 799 |
+
" repetition_penalty=1.1\n",
|
| 800 |
+
")\n",
|
| 801 |
+
"\n",
|
| 802 |
+
"print(\"\\nModel Output:\\n\")\n",
|
| 803 |
+
"print(tokenizer.decode(outputs[0], skip_special_tokens=True))\n"
|
| 804 |
+
]
|
| 805 |
+
},
|
| 806 |
+
{
|
| 807 |
+
"cell_type": "code",
|
| 808 |
+
"execution_count": null,
|
| 809 |
+
"metadata": {
|
| 810 |
+
"id": "cvDTWo_jkFTf"
|
| 811 |
+
},
|
| 812 |
+
"outputs": [],
|
| 813 |
+
"source": [
|
| 814 |
+
"questions = [\n",
|
| 815 |
+
" \"Explain the mechanism of action of Metformin.\",\n",
|
| 816 |
+
" \"List two advantages of combining Atorvastatin with Ezetimibe.\",\n",
|
| 817 |
+
" \"Summarize how mRNA vaccines work and mention one current research focus.\"\n",
|
| 818 |
+
"]"
|
| 819 |
+
]
|
| 820 |
+
},
|
| 821 |
+
{
|
| 822 |
+
"cell_type": "code",
|
| 823 |
+
"execution_count": null,
|
| 824 |
+
"metadata": {
|
| 825 |
+
"id": "jcgu-t4mfnHW"
|
| 826 |
+
},
|
| 827 |
+
"outputs": [],
|
| 828 |
+
"source": [
|
| 829 |
+
"for q in questions:\n",
|
| 830 |
+
" print(\"Question:\", q)\n",
|
| 831 |
+
" print(\"\\n--- Non-instruction model ---\")\n",
|
| 832 |
+
" inputs = tokenizer(q, return_tensors=\"pt\").to(\"cuda\")\n",
|
| 833 |
+
" outputs = non_instruction_model.generate(**inputs, max_new_tokens=80)\n",
|
| 834 |
+
" print(tokenizer.decode(outputs[0], skip_special_tokens=True))\n",
|
| 835 |
+
"\n",
|
| 836 |
+
" print(\"\\n--- Instruction-tuned model ---\")\n",
|
| 837 |
+
" prompt = f\"### Instruction:\\n{q}\\n### Input:\\n\\n### Response:\\n\"\n",
|
| 838 |
+
" inputs = tokenizer(prompt, return_tensors=\"pt\").to(\"cuda\")\n",
|
| 839 |
+
" outputs = instruction_model.generate(**inputs, max_new_tokens=100)\n",
|
| 840 |
+
" print(tokenizer.decode(outputs[0], skip_special_tokens=True))\n",
|
| 841 |
+
" print(\"=\"*80, \"\\n\")\n"
|
| 842 |
+
]
|
| 843 |
+
},
|
| 844 |
+
{
|
| 845 |
+
"cell_type": "code",
|
| 846 |
+
"execution_count": null,
|
| 847 |
+
"metadata": {
|
| 848 |
+
"id": "2OKfm-kEkKUq"
|
| 849 |
+
},
|
| 850 |
+
"outputs": [],
|
| 851 |
+
"source": []
|
| 852 |
+
}
|
| 853 |
+
],
|
| 854 |
+
"metadata": {
|
| 855 |
+
"accelerator": "GPU",
|
| 856 |
+
"colab": {
|
| 857 |
+
"gpuType": "T4",
|
| 858 |
+
"provenance": []
|
| 859 |
+
},
|
| 860 |
+
"kernelspec": {
|
| 861 |
+
"display_name": "Python 3",
|
| 862 |
+
"name": "python3"
|
| 863 |
+
},
|
| 864 |
+
"language_info": {
|
| 865 |
+
"name": "python"
|
| 866 |
+
}
|
| 867 |
+
},
|
| 868 |
+
"nbformat": 4,
|
| 869 |
+
"nbformat_minor": 0
|
| 870 |
+
}
|