From 2c81dcdb3ff3eaade5a968fb58e26e32fa601077 Mon Sep 17 00:00:00 2001
From: huangyulin <hyl97@outlook.com>
Date: Fri, 28 Apr 2023 22:16:13 +0800
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+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "id": "716d29bd",
+   "metadata": {},
+   "source": [
+    "# 文本概括 Summarizing"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "f6b7fca0",
+   "metadata": {},
+   "source": [
+    "## 1 引言"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "4b819ee9",
+   "metadata": {},
+   "source": [
+    "当今世界上有太多的文本信息，几乎没有人能够拥有足够的时间去阅读所有我们想了解的东西。但令人感到欣喜的是，目前LLM在文本概括任务上展现了强大的水准，也已经有不少团队将这项功能插入了自己的软件应用中。\n",
+    "\n",
+    "本章节将介绍如何使用编程的方式，调用API接口来实现“文本概括”功能。"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "48b35259",
+   "metadata": {},
+   "source": [
+    "首先，我们需要OpenAI包，加载API密钥，定义getCompletion函数。"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "id": "5ab873ff",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import openai\n",
+    "openai.api_key = 'sk-请输入你的api-key'\n",
+    "\n",
+    "def get_completion(prompt, model=\"gpt-3.5-turbo\"): \n",
+    "    messages = [{\"role\": \"user\", \"content\": prompt}]\n",
+    "    response = openai.ChatCompletion.create(\n",
+    "        model=model,\n",
+    "        messages=messages,\n",
+    "        temperature=0, # 值越低则输出文本随机性越低\n",
+    "    )\n",
+    "    return response.choices[0].message[\"content\"]"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "469f1276",
+   "metadata": {},
+   "source": [
+    "## 2 单一文本概括Prompt实验"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "cd7d8580",
+   "metadata": {},
+   "source": [
+    "这里我们举了个商品评论的例子。对于电商平台来说，网站上往往存在着海量的商品评论，这些评论反映了所有客户的想法。如果我们拥有一个工具去概括这些海量、冗长的评论，便能够快速地浏览更多评论，洞悉客户的偏好，从而指导平台与商家提供更优质的服务。"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "2fca0e2b",
+   "metadata": {},
+   "source": [
+    "**输入文本**"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "id": "3d3bd87d",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "prod_review = \"\"\"\n",
+    "Got this panda plush toy for my daughter's birthday, \\\n",
+    "who loves it and takes it everywhere. It's soft and \\ \n",
+    "super cute, and its face has a friendly look. It's \\ \n",
+    "a bit small for what I paid though. I think there \\ \n",
+    "might be other options that are bigger for the \\ \n",
+    "same price. It arrived a day earlier than expected, \\ \n",
+    "so I got to play with it myself before I gave it \\ \n",
+    "to her.\n",
+    "\"\"\""
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "1ec202f1",
+   "metadata": {},
+   "source": [
+    "**输入文本（中文翻译）**"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 3,
+   "id": "84a653de",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "prod_review_zh = \"\"\"\n",
+    "这个熊猫公仔是我给女儿的生日礼物，她很喜欢，去哪都带着。\n",
+    "公仔很软，超级可爱，面部表情也很和善。但是相比于价钱来说，\n",
+    "它有点小，我感觉在别的地方用同样的价钱能买到更大的。\n",
+    "快递比预期提前了一天到货，所以在送给女儿之前，我自己玩了会。\n",
+    "\"\"\""
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "e0f78610",
+   "metadata": {},
+   "source": [
+    "### 2.1 限制输出文本长度"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "4066804b",
+   "metadata": {},
+   "source": [
+    "我们尝试限制文本长度为最多30词。"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 4,
+   "id": "d6e423f2",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Soft and cute panda plush toy loved by daughter, but a bit small for the price. Arrived early.\n"
+     ]
+    }
+   ],
+   "source": [
+    "prompt = f\"\"\"\n",
+    "Your task is to generate a short summary of a product \\\n",
+    "review from an ecommerce site. \n",
+    "\n",
+    "Summarize the review below, delimited by triple \n",
+    "backticks, in at most 30 words. \n",
+    "\n",
+    "Review: ```{prod_review}```\n",
+    "\"\"\"\n",
+    "\n",
+    "response = get_completion(prompt)\n",
+    "print(response)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "3586d82d",
+   "metadata": {},
+   "source": [
+    "中文翻译版本"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 5,
+   "id": "51cbed99",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "可爱软熊猫公仔，女儿喜欢，面部表情和善，但价钱有点小贵，快递提前一天到货。\n"
+     ]
+    }
+   ],
+   "source": [
+    "prompt = f\"\"\"\n",
+    "你的任务是从电子商务网站上生成一个产品评论的简短摘要。\n",
+    "\n",
+    "请对三个反引号之间的评论文本进行概括，最多30个词汇。\n",
+    "\n",
+    "评论: ```{prod_review_zh}```\n",
+    "\"\"\"\n",
+    "\n",
+    "response = get_completion(prompt)\n",
+    "print(response)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "08c1643c",
+   "metadata": {},
+   "source": [
+    "### 2.2 关键角度侧重"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "f2582b5f",
+   "metadata": {},
+   "source": [
+    "有时，针对不同的业务，我们对文本的侧重会有所不同。例如对于商品评论文本，物流会更关心运输时效，商家更加关心价格与商品质量，平台更关心整体服务体验。\n",
+    "\n",
+    "我们可以通过增加Prompt提示，来体现对于某个特定角度的侧重。"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "9da7a497",
+   "metadata": {},
+   "source": [
+    "**侧重于运输**"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 6,
+   "id": "1432a7fe",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "The panda plush toy arrived a day earlier than expected, but the customer felt it was a bit small for the price paid.\n"
+     ]
+    }
+   ],
+   "source": [
+    "prompt = f\"\"\"\n",
+    "Your task is to generate a short summary of a product \\\n",
+    "review from an ecommerce site to give feedback to the \\\n",
+    "Shipping deparmtment. \n",
+    "\n",
+    "Summarize the review below, delimited by triple \n",
+    "backticks, in at most 30 words, and focusing on any aspects \\\n",
+    "that mention shipping and delivery of the product. \n",
+    "\n",
+    "Review: ```{prod_review}```\n",
+    "\"\"\"\n",
+    "\n",
+    "response = get_completion(prompt)\n",
+    "print(response)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "d3b46d0f",
+   "metadata": {},
+   "source": [
+    "中文翻译版本"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 8,
+   "id": "8fff34de",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "快递提前到货，熊猫公仔软可爱，但有点小，价钱不太划算。\n"
+     ]
+    }
+   ],
+   "source": [
+    "prompt = f\"\"\"\n",
+    "你的任务是从电子商务网站上生成一个产品评论的简短摘要。\n",
+    "\n",
+    "请对三个反引号之间的评论文本进行概括，最多30个词汇，并且聚焦在产品运输上。\n",
+    "\n",
+    "评论: ```{prod_review_zh}```\n",
+    "\"\"\"\n",
+    "\n",
+    "response = get_completion(prompt)\n",
+    "print(response)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "426fb25f",
+   "metadata": {},
+   "source": [
+    "可以看到，输出结果以“快递提前一天到货”开头，体现了对于快递效率的侧重。"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "aaa71480",
+   "metadata": {},
+   "source": [
+    "**侧重于价格与质量**"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 9,
+   "id": "18546578",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "The panda plush toy is soft, cute, and loved by the recipient, but the price may be too high for its size compared to other options.\n"
+     ]
+    }
+   ],
+   "source": [
+    "prompt = f\"\"\"\n",
+    "Your task is to generate a short summary of a product \\\n",
+    "review from an ecommerce site to give feedback to the \\\n",
+    "pricing deparmtment, responsible for determining the \\\n",
+    "price of the product.  \n",
+    "\n",
+    "Summarize the review below, delimited by triple \n",
+    "backticks, in at most 30 words, and focusing on any aspects \\\n",
+    "that are relevant to the price and perceived value. \n",
+    "\n",
+    "Review: ```{prod_review}```\n",
+    "\"\"\"\n",
+    "\n",
+    "response = get_completion(prompt)\n",
+    "print(response)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "63645a57",
+   "metadata": {},
+   "source": [
+    "中文翻译版本"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 12,
+   "id": "826ecc6d",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "可爱软熊猫公仔，面部表情友好，但价钱有点高，尺寸较小。快递提前一天到货。\n"
+     ]
+    }
+   ],
+   "source": [
+    "prompt = f\"\"\"\n",
+    "你的任务是从电子商务网站上生成一个产品评论的简短摘要。\n",
+    "\n",
+    "请对三个反引号之间的评论文本进行概括，最多30个词汇，并且聚焦在产品价格和质量上。\n",
+    "\n",
+    "评论: ```{prod_review_zh}```\n",
+    "\"\"\"\n",
+    "\n",
+    "response = get_completion(prompt)\n",
+    "print(response)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "d181a9b4",
+   "metadata": {},
+   "source": [
+    "可以看到，输出结果以“质量好、价格小贵、尺寸小”开头，体现了对于产品价格与质量的侧重。"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "57595596",
+   "metadata": {},
+   "source": [
+    "### 2.3 关键信息提取"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "5c1fe1d5",
+   "metadata": {},
+   "source": [
+    "在2.2节中，虽然我们通过添加关键角度侧重的Prompt，使得文本摘要更侧重于某一特定方面，但是可以发现，结果中也会保留一些其他信息，如价格与质量角度的概括中仍保留了“快递提前到货”的信息。有时这些信息是有帮助的，但如果我们只想要提取某一角度的信息，并过滤掉其他所有信息，则可以要求LLM进行“文本提取(Extract)”而非“文本概括(Summarize)”。"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 13,
+   "id": "8ae5c70f",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "\"The product arrived a day earlier than expected.\"\n"
+     ]
+    }
+   ],
+   "source": [
+    "prompt = f\"\"\"\n",
+    "Your task is to extract relevant information from \\ \n",
+    "a product review from an ecommerce site to give \\\n",
+    "feedback to the Shipping department. \n",
+    "\n",
+    "From the review below, delimited by triple quotes \\\n",
+    "extract the information relevant to shipping and \\ \n",
+    "delivery. Limit to 30 words. \n",
+    "\n",
+    "Review: ```{prod_review}```\n",
+    "\"\"\"\n",
+    "\n",
+    "response = get_completion(prompt)\n",
+    "print(response)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "149b594e",
+   "metadata": {},
+   "source": [
+    "中文翻译版本"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 16,
+   "id": "5993dd50",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "快递提前一天到货，但产品有点小，相比价钱来说可以买到更大的。\n"
+     ]
+    }
+   ],
+   "source": [
+    "prompt = f\"\"\"\n",
+    "你的任务是从电子商务网站上的产品评论中提取相关信息，以向运输部门提供反馈。\n",
+    "\n",
+    "请从以下三个反引号之间的评论文本中提取产品运输相关的信息，最多30个词汇。\n",
+    "\n",
+    "评论: ```{prod_review_zh}```\n",
+    "\"\"\"\n",
+    "\n",
+    "response = get_completion(prompt)\n",
+    "print(response)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "9fd0c3b8",
+   "metadata": {},
+   "source": [
+    "## 3 多条文本概括Prompt实验"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "2b27575c",
+   "metadata": {},
+   "source": [
+    "在实际的工作流中，我们往往有许许多多的评论文本，以下展示了一个基于for循环调用“文本概括”工具并依次打印的示例。当然，在实际生产中，对于上百万甚至上千万的评论文本，使用for循环也是不现实的，可能需要考虑整合评论、分布式等方法提升运算效率。"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 17,
+   "id": "74f9930d",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "review_1 = prod_review \n",
+    "\n",
+    "# review for a standing lamp\n",
+    "review_2 = \"\"\"\n",
+    "Needed a nice lamp for my bedroom, and this one \\\n",
+    "had additional storage and not too high of a price \\\n",
+    "point. Got it fast - arrived in 2 days. The string \\\n",
+    "to the lamp broke during the transit and the company \\\n",
+    "happily sent over a new one. Came within a few days \\\n",
+    "as well. It was easy to put together. Then I had a \\\n",
+    "missing part, so I contacted their support and they \\\n",
+    "very quickly got me the missing piece! Seems to me \\\n",
+    "to be a great company that cares about their customers \\\n",
+    "and products. \n",
+    "\"\"\"\n",
+    "\n",
+    "# review for an electric toothbrush\n",
+    "review_3 = \"\"\"\n",
+    "My dental hygienist recommended an electric toothbrush, \\\n",
+    "which is why I got this. The battery life seems to be \\\n",
+    "pretty impressive so far. After initial charging and \\\n",
+    "leaving the charger plugged in for the first week to \\\n",
+    "condition the battery, I've unplugged the charger and \\\n",
+    "been using it for twice daily brushing for the last \\\n",
+    "3 weeks all on the same charge. But the toothbrush head \\\n",
+    "is too small. I’ve seen baby toothbrushes bigger than \\\n",
+    "this one. I wish the head was bigger with different \\\n",
+    "length bristles to get between teeth better because \\\n",
+    "this one doesn’t.  Overall if you can get this one \\\n",
+    "around the $50 mark, it's a good deal. The manufactuer's \\\n",
+    "replacements heads are pretty expensive, but you can \\\n",
+    "get generic ones that're more reasonably priced. This \\\n",
+    "toothbrush makes me feel like I've been to the dentist \\\n",
+    "every day. My teeth feel sparkly clean! \n",
+    "\"\"\"\n",
+    "\n",
+    "# review for a blender\n",
+    "review_4 = \"\"\"\n",
+    "So, they still had the 17 piece system on seasonal \\\n",
+    "sale for around $49 in the month of November, about \\\n",
+    "half off, but for some reason (call it price gouging) \\\n",
+    "around the second week of December the prices all went \\\n",
+    "up to about anywhere from between $70-$89 for the same \\\n",
+    "system. And the 11 piece system went up around $10 or \\\n",
+    "so in price also from the earlier sale price of $29. \\\n",
+    "So it looks okay, but if you look at the base, the part \\\n",
+    "where the blade locks into place doesn’t look as good \\\n",
+    "as in previous editions from a few years ago, but I \\\n",
+    "plan to be very gentle with it (example, I crush \\\n",
+    "very hard items like beans, ice, rice, etc. in the \\ \n",
+    "blender first then pulverize them in the serving size \\\n",
+    "I want in the blender then switch to the whipping \\\n",
+    "blade for a finer flour, and use the cross cutting blade \\\n",
+    "first when making smoothies, then use the flat blade \\\n",
+    "if I need them finer/less pulpy). Special tip when making \\\n",
+    "smoothies, finely cut and freeze the fruits and \\\n",
+    "vegetables (if using spinach-lightly stew soften the \\ \n",
+    "spinach then freeze until ready for use-and if making \\\n",
+    "sorbet, use a small to medium sized food processor) \\ \n",
+    "that you plan to use that way you can avoid adding so \\\n",
+    "much ice if at all-when making your smoothie. \\\n",
+    "After about a year, the motor was making a funny noise. \\\n",
+    "I called customer service but the warranty expired \\\n",
+    "already, so I had to buy another one. FYI: The overall \\\n",
+    "quality has gone done in these types of products, so \\\n",
+    "they are kind of counting on brand recognition and \\\n",
+    "consumer loyalty to maintain sales. Got it in about \\\n",
+    "two days.\n",
+    "\"\"\"\n",
+    "\n",
+    "reviews = [review_1, review_2, review_3, review_4]"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "5fb23db5",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "for i in range(len(reviews)):\n",
+    "    prompt = f\"\"\"\n",
+    "    Your task is to generate a short summary of a product \\ \n",
+    "    review from an ecommerce site. \n",
+    "\n",
+    "    Summarize the review below, delimited by triple \\\n",
+    "    backticks in at most 20 words. \n",
+    "\n",
+    "    Review: ```{reviews[i]}```\n",
+    "    \"\"\"\n",
+    "\n",
+    "    response = get_completion(prompt)\n",
+    "    print(i, response, \"\\n\")"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "c0be2824",
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python [conda env:chatgpt]",
+   "language": "python",
+   "name": "conda-env-chatgpt-py"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.9.16"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}