Menggunakan alat eksternal dengan generate_text

Lihat di ai.google.dev Coba notebook Colab Lihat notebook di GitHub

Untuk beberapa kasus penggunaan, Anda mungkin ingin menghentikan pembuatan dari model untuk menyisipkan hasil tertentu. Misalnya, model bahasa mungkin memiliki masalah dengan soal aritmatika yang rumit seperti soal cerita. Tutorial ini menunjukkan contoh penggunaan alat eksternal dengan metode genai.generate_text untuk menghasilkan jawaban yang benar untuk soal cerita.

Contoh khusus ini menggunakan alat numexpr untuk melakukan aritmetika, tetapi Anda dapat menggunakan prosedur yang sama ini untuk mengintegrasikan alat lain khusus untuk kasus penggunaan Anda. Berikut ini adalah garis besar langkah-langkahnya:

  1. Tentukan tag start dan end untuk mendemarkasi teks guna mengirim alat.
  2. Buat prompt yang menunjukkan kepada model cara menggunakan tag dalam hasilnya.
  3. Sertakan tag end dalam stop_sequences yang diteruskan ke generate_text.
  4. Dari hasil model, ambil teks di antara tag start dan end sebagai input ke alat.
  5. Jalankan alat dan tambahkan outputnya ke perintah.
  6. Panggil generate_text lagi, agar model melanjutkan output alat.

Penyiapan

pip install -q google.generativeai
import google.generativeai as genai
genai.configure(api_key='YOUR API KEY')

from google.api_core import retry

@retry.Retry()
def generate_text(*args, **kwargs):
  return genai.generate_text(*args, **kwargs)
models = [m for m in genai.list_models() if 'generateText' in m.supported_generation_methods]
model = models[0].name
print(model)
models/text-bison-001

Coba selesaikan masalah secara langsung

Berikut ini masalah kata yang akan Anda selesaikan:

question = """
I have 77 houses, each with 31 cats.
Each cat owns 14 mittens, and 6 hats.
Each mitten was knit from 141m of yarn, each hat from 55m.
How much yarn was needed to make all the items?
"""
prompt_template = """
You are an expert at solving word problems. Here's one:

{question}

Work through it step by step, and show your work.
One step per line.

Your solution:
"""

Cobalah:

completion = generate_text(
    model=model,
    prompt=prompt_template.format(question=question),
    # The maximum length of the response
    max_output_tokens=800,
)

print(completion.result)
In the houses there are 77 * 31 = 2387 cats.
So they need 2387 * 14 = 33418 mittens.
And they need 2387 * 6 = 14322 hats.
In total they need 33418 * 141 + 14322 * 55 = 5554525m of yarn.
The answer: 5554525.

Perintah seperti ini biasanya menampilkan hasil yang salah. Biasanya langkah-langkahnya benar, tetapi aritmatikanya salah.

Jawabannya adalah:

answer = 77*31*14*141 + 77*31*6*55
answer
5499648

Beri tahu model untuk menggunakan kalkulator

Pada upaya berikutnya, berikan instruksi kepada model tentang cara mengakses kalkulator. Anda dapat melakukannya dengan menentukan tag start dan end yang dapat digunakan model untuk menunjukkan tempat penghitungan diperlukan. Tambahkan hal seperti berikut ke perintah:

calc_prompt_template = """
You are an expert at solving word problems. Here's a question:

{question}

-------------------

When solving this problem, use the calculator for any arithmetic.

To use the calculator, put an expression between <calc></calc> tags.
The answer will be printed after the </calc> tag.

For example: 2 houses  * 8 cats/house = <calc>2 * 8</calc> = 16 cats

-------------------

Work through it step by step, and show your work.
One step per line.

Your solution:
"""

calc_prompt = calc_prompt_template.format(question=question)

Untuk memberi model akses ke output "kalkulator" ini, Anda harus menjeda pembuatan dan memasukkan hasilnya. Gunakan argumen stop_sequences untuk berhenti di tag </calc>:

completion = generate_text(
    model=model,
    prompt=calc_prompt,
    stop_sequences=["</calc>"],
    # The maximum length of the response
    max_output_tokens=800,
    candidate_count=1,
)

result = completion.result
print(result)
In each house, there are <calc>31 * 14

stop_sequence tidak disertakan dalam hasil. Pisahkan ekspresi tersebut dan jalankan melalui kalkulator, lalu tambahkan kembali ke hasil:

# Use re to clear units from the calculator expressions
import re
# Use numexpr since `eval` is unsafe.
import numexpr


def calculator(result):
  result, expression = result.rsplit('<calc>', 1)

  # Strip any units like "cats / house"
  clean_expression = re.sub("[a-zA-Z]([ /a-zA-Z]*[a-zA-Z])?",'', expression)

  # `eval` is unsafe use numexpr
  result = f"{result}<calc>{expression}</calc> = {str(numexpr.evaluate(clean_expression))}"
  return result
print(calculator(result))
In each house, there are <calc>31 * 14</calc> = 434

Sekarang, tambahkan hal tersebut ke perintah, dan jalankan kembali model, sehingga model dapat melanjutkan dari bagian terakhir yang dibuka:

continue_prompt=calc_prompt +"\n"+ "-"*80 + "\n" + calculator(result)

completion = generate_text(
    model=model,
    prompt=continue_prompt,
    stop_sequences=["</calc>"],
    # The maximum length of the response
    max_output_tokens=800,
    candidate_count=1,
)

print(completion.result)
mittens.
In each house, there are <calc>31 * 6

Kali ini, model melanjutkan teks dari perhitungan terakhir dan melanjutkan ke penghitungan berikutnya. Sekarang jalankan dalam loop untuk sepenuhnya menyelesaikan soal cerita:

def solve(question=question):
  results = []

  for n in range(10):
    prompt = calc_prompt_template.format(question=question)

    prompt += " ".join(results)

    completion = generate_text(
        model=model,
        prompt=prompt,
        stop_sequences=["</calc>"],
        # The maximum length of the response
        max_output_tokens=800,
    )

    result = completion.result
    if '<calc>' in result:
      result = calculator(result)

    results.append(result)
    print('-'*40)
    print(result)
    if str(answer) in result:
      break
    if "<calc>" not in  result:
      break

  is_good = any(str(answer) in r for r in results)

  print("*"*100)
  if is_good:
    print("Success!")
  else:
    print("Failure!")
  print("*"*100)

  return is_good
solve(question);
----------------------------------------
The total number of cats is <calc>77 * 31</calc> = 2387
----------------------------------------
cats.
The total number of mittens is <calc>2387 * 14</calc> = 33418
----------------------------------------
mittens.
The total amount of yarn needed for the mittens is <calc>33418 * 141</calc> = 4711938
----------------------------------------
m.
The total number of hats is <calc>2387 * 6</calc> = 14322
----------------------------------------
hats.
 The total amount of yarn needed for the hats is <calc>14322 * 55</calc> = 787710
----------------------------------------
m.
In total, <calc>4711938 + 787710</calc> = 5499648
********************************************************************************
Success!

Anda dapat menjalankannya beberapa kali untuk memperkirakan tingkat penyelesaian:

good = []

for n in range(10):
  good.append(solve(question))
----------------------------------------
There are <calc>77 * 31</calc> = 2387
----------------------------------------
cats.
They need <calc>2387 * 14</calc> = 33418
----------------------------------------
mittens.
The mittens need <calc>33418 * 141</calc> = 4711938
----------------------------------------
m of yarn.
They need <calc>2387 * 6</calc> = 14322
----------------------------------------
hats.
The hats need <calc>14322 * 55</calc> = 787710
----------------------------------------
m of yarn.
 They need a total of <calc>4711938 + 787710</calc> = 5499648
********************************************************************************
Success!
----------------------------------------
There are <calc>77 * 31</calc> = 2387
----------------------------------------
cats.
So for the mittens, we need <calc>2387 * 14</calc> = 33418
----------------------------------------
mittens.
That means we need <calc>33418 * 141</calc> = 4711938
----------------------------------------
m of yarn for mittens.
For the hats, we need <calc>2387 * 6</calc> = 14322
----------------------------------------
hats.
That means we need <calc>14322 * 55</calc> = 787710
----------------------------------------
m of yarn for hats.
 In total we need <calc>787710 + 4711938</calc> = 5499648
********************************************************************************
Success!
----------------------------------------
In the 77 houses I have <calc>77 * 31</calc> = 2387
----------------------------------------
cats.
They need <calc>2387 * 14</calc> = 33418
----------------------------------------
mittens.
The mittens need <calc>33418 * 141</calc> = 4711938
----------------------------------------
m of yarn.
They need <calc>2387 * 6</calc> = 14322
----------------------------------------
hats.
The hats need <calc>14322 * 55</calc> = 787710
----------------------------------------
m of yarn.
 So, in total I need <calc>4711938 + 787710</calc> = 5499648
********************************************************************************
Success!
----------------------------------------
The number of cats is <calc>77 * 31</calc> = 2387
----------------------------------------
. Each cat needs <calc>14 * 141</calc> = 1974
----------------------------------------
m of yarn for mittens. So we need <calc>1974 * 2387</calc> = 4711938
----------------------------------------
m of yarn for mittens. Each cat needs <calc>6 * 55</calc> = 330
----------------------------------------
m of yarn for hats. So we need <calc>330 * 2387</calc> = 787710
----------------------------------------
m of yarn for hats. So in total we need <calc>4711938 + 787710</calc> = 5499648
********************************************************************************
Success!
----------------------------------------
There are <calc>77 * 31</calc> = 2387
----------------------------------------
cats.
Each cat needs <calc>14 * 141</calc> = 1974
----------------------------------------
yarn for mittens.
All cats need <calc>2387 * 1974</calc> = 4711938
----------------------------------------
yarn for mittens.
Each cat needs <calc>6 * 55</calc> = 330
----------------------------------------
yarn for hats.
All cats need <calc>2387 * 330</calc> = 787710
----------------------------------------
yarn for hats.
 All in all, you need <calc>4711938 + 787710</calc> = 5499648
********************************************************************************
Success!
----------------------------------------
There are <calc>77 * 31</calc> = 2387
----------------------------------------
cats.
Each cat needs <calc>14 + 6</calc> = 20
----------------------------------------
items.
So we need <calc>20 * 2387</calc> = 47740
----------------------------------------
items in total.
Each mitten needs <calc>141</calc> = 141
----------------------------------------
m of yarn.
So all the mittens need <calc>141 * 47740</calc> = 6731340
----------------------------------------
m of yarn.
 Each hat needs <calc>55</calc> = 55
----------------------------------------
m of yarn.
So all the hats need <calc>55 * 47740</calc> = 2625700
----------------------------------------
m of yarn.
 In total, we need <calc>6731340 + 2625700</calc> = 9357040
----------------------------------------
m of yarn. There are <calc>77 * 31</calc> = 2387
----------------------------------------
cats.
Each cat needs <calc>14 + 6</calc> = 20
********************************************************************************
Failure!
----------------------------------------
There are <calc>77 * 31</calc> = 2387
----------------------------------------
cats.
There are <calc>2387 * 14</calc> = 33418
----------------------------------------
mittens.
There are <calc>2387 * 6</calc> = 14322
----------------------------------------
hats.
There was <calc>141 * 33418</calc> = 4711938
----------------------------------------
m of yarn needed for mittens.
There was <calc>55 * 14322</calc> = 787710
----------------------------------------
m of yarn needed for hats.
 So there was <calc>4711938 + 787710</calc> = 5499648
********************************************************************************
Success!
----------------------------------------
There are <calc>77 * 31</calc> = 2387
----------------------------------------
cats in total. 
They need <calc>2387 * 14</calc> = 33418
----------------------------------------
mittens. 
That's <calc>33418 * 141</calc> = 4711938
----------------------------------------
meters of yarn for mittens. 
They need <calc>2387 * 6</calc> = 14322
----------------------------------------
hats. 
That's <calc>14322 * 55</calc> = 787710
----------------------------------------
meters of yarn for hats. 
So, they need <calc>4711938 + 787710</calc> = 5499648
********************************************************************************
Success!
----------------------------------------
There are 77 houses * 31 cats / house = <calc>77 * 31</calc> = 2387
----------------------------------------
cats.
So we need <calc>2387 * 14</calc> = 33418
----------------------------------------
mittens.
So we need <calc>33418 * 141</calc> = 4711938
----------------------------------------
m of yarn for mittens.
So we need <calc>2387 * 6</calc> = 14322
----------------------------------------
hats.
 So we need <calc>14322 * 55</calc> = 787710
----------------------------------------
m of yarn for hats.
In total, we need <calc>4711938 + 787710</calc> = 5499648
********************************************************************************
Success!
----------------------------------------
In total there are 77 houses * 31 cats / house = <calc>77 * 31</calc> = 2387
----------------------------------------
cats. In total 2387 cats * 14 mittens / cat = <calc>2387 * 14</calc> = 33418
----------------------------------------
mittens. In total 33418 mittens * 141m / mitten = <calc>33418 * 141</calc> = 4711938
----------------------------------------
m of yarn for mittens. In total 2387 cats * 6 hats / cat = <calc>2387 * 6</calc> = 14322
----------------------------------------
hats. In total 14322 hats * 55m / hat = <calc>14322 * 55</calc> = 787710
----------------------------------------
m of yarn for hats. In total we need 4711938 m of yarn for mittens + 787710 m of yarn for hats = <calc>4711938 + 787710</calc> = 5499648
********************************************************************************
Success!
import numpy as np
np.mean(good)
0.9