{ "source_file": "0930", "source_platform": "Medium", "author": "Ivo Bernardo", "title_listed": "What to Study if you Want to Master LLMs", "keywords": "", "domain": "大模型算法", "content_type": "深度技术解析", "is_paid_flag": "否", "url": "https://towardsdatascience.com/what-to-study-if-you-want-to-master-llms-8d720f16c559/", "publish_date": "2024-08-13", "corpus_stage": "", "notes": "", "id": "099e457c3b5b", "collected_at": "2026-10-02T05:55:56", "title": "What to Study if you Want to Master LLMs | Towards Data Science", "body_markdown": "![Revisit consent button](../images/body-df29beacd7496220cc94.svg)\nWe value your privacy\nWe use cookies to enhance your browsing experience, serve personalised ads or content, and analyse our traffic. By clicking \"Accept All\", you consent to our use of cookies.\nCustomise Reject All Accept All\nCustomise Consent Preferences ![](../images/body-2159bb67f3de8ad870eb.svg)\nWe use cookies to help you navigate efficiently and perform certain functions. 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It also helps in adverstising on the website.\n\n\n * Cookie\nedgebucket\n * Duration\nsession\n * Description\nReddit sets this cookie to save the information about a log-on Reddit user, for the purpose of advertisement recommendations and updating the content.\n\n\n * Cookie\ndid\n * Duration\n1 year\n * Description\nArbor sets this cookie to show targeted ads to site visitors.This cookie expires after 2 months or 1 year.\n\n\nUncategorised\nOther uncategorised cookies are those that are being analysed and have not been classified into a category as yet.\nNo cookies to display.\nReject All Save My Preferences Accept All\nToggle Search[](https://towardsdatascience.com/)Toggle Mobile Navigation\n[](https://towardsdatascience.com/)\nPublish AI, ML & data-science insights to a global community of data professionals.\nSign in[Submit an Article](https://write.insightmediagroup.io)\n[Latest](https://towardsdatascience.com/latest/)[Editor's Picks](https://towardsdatascience.com/tag/editors-pick/)[Newsletter](https://towardsdatascience.com/tag/the-variable/)[ShipAI](https://towardsdatascience.com/shipai/)\n* * *\n[Write For TDS](https://towardsdatascience.com/submissions/)\n[LinkedIn](https://www.linkedin.com/company/towards-data-science/)[X](https://x.com/TDataScience)Toggle Search\n[Artificial Intelligence](https://towardsdatascience.com/category/artificial-intelligence/)\n# What to Study if you Want to Master LLMs\nWhat foundational concepts should you study if you want to understand Large Language Models?\n[Ivo Bernardo](https://towardsdatascience.com/author/ivopbernardo/)\nAugust 12, 20245 min read\n![Image by solenfeyissa @ Unsplash.com](../images/000.jpg)\nImage by [solenfeyissa](https://unsplash.com/pt-br/@solenfeyissa) @ Unsplash.com\nMost of the code we use to interact with LLMs (Large Language Models) is hidden behind several APIs - and that's a good thing.\nBut if you are like me, and want to understand the _ins_ and _outs_ of these magical models, there's still hope for you. Currently, apart from the researchers working on developing and training new LLMs, there's mostly two types of people playing with these types of models:\n * Users, that interact via applications such as _ChatGPT_ or _Gemini_.\n * Data scientists and developers that work with different libraries, such as _llangchain_ , _llama-index_ or even using _Gemini_ or _OpenAI_ apis, that simplify the process of building on top of these models.\n\n\nThe problem is - and you may have felt it - that there is a fundamental knowledge in text mining and natural language processing that is completely hidden away in consumer products or APIs. And don't take me wrong - they are great for developing cool use cases around these technologies. But, if you want to a have deeper knowledge to build complex use cases or manipulate LLMs a bit better, you'll need to check the fundamentals - particularly when the models behave as you aren't expecting.\nIn this blog post, I'm going to detail some of the most fundamental concepts you should check, if you want to be able to master large language models on a technical level!\nLet's start!\n* * *\nLearn this step by step with the interactive [AI Engineer](https://roadmap.sh/ai-engineer) and [Prompt Engineering](https://roadmap.sh/prompt-engineering) roadmaps.\n### Basic NLP /NLTK\nBasic natural language processing (NLP) is the first concept you should learn. Working with the traditional NLP pipelines will be a great lesson on how computers struggle to naturally understanding written text. With NLTK (Natural Language Toolkit), you can get the first contact with manipulating text within the context of machine learning.\nPoking around the [NLTK ](https://www.nltk.org/)library is awesome. This is one of first Python libraries to specialize in text mining within the open source world. It contains the most basic techniques to develop some nice prototypes, such as tokenization, stemming, lemmatization, part-of-speech tagging or named entity recognition.\nWith its extensive documentation and community, NLTK is a great way to start getting your hands dirty with Natural Language Processing.\n* * *\n### Word2Vec\nBy working with NLTK, you will understand that advanced AI use cases are impossible to build just using classical machine learning. While you can create basic sentiment analysis or text generation pipelines, the performance of these systems will fall significantly short as you add more complexity.\nSo.. how did we get here? To the stage where we can have generalist tools that [can crush the Turing Test](https://www.nature.com/articles/d41586-023-02361-7)?\nOne of the most famous papers that revolutionized the NLP industry was the [word2vec](https://arxiv.org/abs/1301.3781) paper. Although some research was already rolling before it, this paper brough Word Vectors to mainstream attention. It was an absolute game changer.\nAfter word2vec, humans found a way to represent words mathematically, while keeping two important features:\n * The mathematical vectors would represent words according to their meaning and were not related to how the word was written.\n * These vectors where of fixed length size and would not rely on a fixed vocabulary.\n\n\nHow are these vectors built? Mostly, by training a neural network to predict a word within a context. The weights mapped on this neural network for a specific word translate into a mathematical relationship similar to the one below:\n![Similarity between Vectors in Space - Image source: https://en.wikipedia.org/wiki/Word2vec](../images/001.jpg)\nSimilarity between Vectors in Space - Image source: \nNote: _2 dimensional simplification of word vectors_\nThe fact that we can build mathematical representation of words that keep the semantic relationship of language was a much needed breakthrough in the NLP field. Word vectors are a method of word embeddings, one of the building blocks of Large Language Models.\n* * *\n### Text Classification\nNext stop is combining both embeddings and simple machine learning pipelines to understand how we can transform text into features to use in machine learning models.\nIn text classification, you normally start with logistic regression, naive bayes classifiers or tree-based models. This is where you should experiment with different tokenizers, pre-processing methods and embeddings - and where you will see performance increasing or decreasing based on your choices.\nSome of the most common text classification projects you can experiment are:\n * E-mail spam classifiers: detecting if an e-mail is spam or not;\n * Sentiment analysis - checking the polarity of a specific piece of text;\n * Topic categorization: detecting topics of different documents;\n * Language detection: checking the language of a specific text;\n\n\nCheck out some of the following competitions on kaggle:\n * Sentiment analysis: \n * Disaster tweet categorization: \n\n\n* * *\n### Text Generation\nAnother area to explore is text generation. This is a very important part of Large Language Models, particularly as most of the applications that we some of level of next-word prediction.\nWhen it comes to text generation, there are two main routes to study:\n * Traditional natural language processing, using words _as-is_ and building systems that rely on conditional probabilities.\n * Using Neural Networks, leveraging embeddings or using models such as recurrent neural networks.\n\n\nMarkov chains are a great way to learn about the intution of text generation. Although they tend to simulate text that leans on repetitive patterns, they are a great way to start.\nNaturally, as time goes by, you'll want to learn more about recurrent neural networks / embedding based methods that will completely improve the coherence and quality of your generated text.\n![Markov Chain Example - Image Source: https://en.wikipedia.org/wiki/Markov_chain#/media/File:Markovkate_01.svg](../images/002.png)\nMarkov Chain Example - Image Source: \n* * *\n### Attention and Transformers\nFinally, only after studying the foundational concepts I've laid out here, should you tackle the Attention mechanism.\nThe [Attention paper](https://arxiv.org/pdf/1706.03762) was out in 2017 and it completely transformed the NLP field. If it wasn't for the attention mechanism, the applications we see today would be completely impossible.\nThe attention mechanism also relies on a deep knowledge on neural networks so, while you study them, it will be very helpful to understand how this mechanism fits in on the overall neural network theory.\nBased on the attention mechanism, the [Transformer](https://research.google/blog/transformer-a-novel-neural-network-architecture-for-language-understanding/) was born. It dethroned recurrent neural networks as the standard for text generation and understanding and helped to consolidate the attention mechanism as the standard for NLP applications. Learning attention and transformers may be challenging, but it will be much easier if you are armed with the basic NLP knowledge first :-)\n* * *\nThank you for taking the time to read this post! In summary, here are the recommendations of a study plan to understand how Large Language Models work:\n * Study basic NLP pipelines first. NLTK is a great start.\n * Tackle word vectors and deeply experiment with the word2vec architecture.\n * Jump into text classification examples and work with some parameters - such as using different tokenization or pre-processing techniques.\n * Move to text generations and get familiar with markov chains and recurrent neural networks.\n * Finally, aim to learn about the attention mechanism, the famous breakthrough that has revolutionized the text mining field.\n\n\nI've set up a Udemy course with these foundational methods [here](https://www.udemy.com/course/nlp_natural_language_processing_python_beginners/?couponCode=YOUTUBEAUG):\n![Natural Language Processing Course - Image by Author](../images/003.png)\nNatural Language Processing Course - Image by Author\n## Register Now to Continue Reading\n### Unlock Towards Data Science with a Free Account\nAll articles on Towards Data Science are available to registered users. Create a free account today to access this article and thousands more.\nRegister for freeSign in to your account\n* * *\n![](../images/body-6f351be10c9e83aa9f9d.jpeg)\nWritten By\n## [Ivo Bernardo](https://towardsdatascience.com/author/ivopbernardo/)\n[See all from Ivo Bernardo](https://towardsdatascience.com/author/ivopbernardo/)\n[Artificial Intelligence](https://towardsdatascience.com/tag/artificial-intelligence/)[ChatGPT](https://towardsdatascience.com/tag/chatgpt/)[Llm](https://towardsdatascience.com/tag/llm/)[Naturallanguageprocessing](https://towardsdatascience.com/tag/naturallanguageprocessing/)[Text Mining](https://towardsdatascience.com/tag/text-mining/)\nShare This Article\n * [](https://www.facebook.com/sharer/sharer.php?u=https%3A%2F%2Ftowardsdatascience.com%2Fwhat-to-study-if-you-want-to-master-llms-8d720f16c559%2F&title=What%20to%20Study%20if%20you%20Want%20to%20Master%20LLMs)\n * [](https://www.linkedin.com/shareArticle?mini=true&url=https%3A%2F%2Ftowardsdatascience.com%2Fwhat-to-study-if-you-want-to-master-llms-8d720f16c559%2F&title=What%20to%20Study%20if%20you%20Want%20to%20Master%20LLMs)\n * [](https://x.com/share?url=https%3A%2F%2Ftowardsdatascience.com%2Fwhat-to-study-if-you-want-to-master-llms-8d720f16c559%2F&text=What%20to%20Study%20if%20you%20Want%20to%20Master%20LLMs)\n\n\nTowards Data Science is a community publication. 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It also helps in adverstising on the website.\n\n\n * Cookie\nedgebucket\n * Duration\nsession\n * Description\nReddit sets this cookie to save the information about a log-on Reddit user, for the purpose of advertisement recommendations and updating the content.\n\n\n * Cookie\ndid\n * Duration\n1 year\n * Description\nArbor sets this cookie to show targeted ads to site visitors.This cookie expires after 2 months or 1 year.\n\n\nUncategorised\nOther uncategorised cookies are those that are being analysed and have not been classified into a category as yet.\nNo cookies to display.\nReject All Save My Preferences Accept All\nToggle Search[](https://towardsdatascience.com/)Toggle Mobile Navigation\n[](https://towardsdatascience.com/)\nPublish AI, ML & data-science insights to a global community of data professionals.\nSign in[Submit an Article](https://write.insightmediagroup.io)\n[Latest](https://towardsdatascience.com/latest/)[Editor's Picks](https://towardsdatascience.com/tag/editors-pick/)[Newsletter](https://towardsdatascience.com/tag/the-variable/)[ShipAI](https://towardsdatascience.com/shipai/)\n* * *\n[Write For TDS](https://towardsdatascience.com/submissions/)\n[LinkedIn](https://www.linkedin.com/company/towards-data-science/)[X](https://x.com/TDataScience)Toggle Search\n[Artificial Intelligence](https://towardsdatascience.com/category/artificial-intelligence/)\n# What to Study if you Want to Master LLMs\nWhat foundational concepts should you study if you want to understand Large Language Models?\n[Ivo Bernardo](https://towardsdatascience.com/author/ivopbernardo/)\nAugust 12, 20245 min read\n![Image by solenfeyissa @ Unsplash.com](https://assets.insightmediagroup.io/media/wp-content/uploads/2024/08/0JseRVdLSB39lkUqI-scaled.jpg)\nImage by [solenfeyissa](https://unsplash.com/pt-br/@solenfeyissa) @ Unsplash.com\nMost of the code we use to interact with LLMs (Large Language Models) is hidden behind several APIs - and that's a good thing.\nBut if you are like me, and want to understand the _ins_ and _outs_ of these magical models, there's still hope for you. Currently, apart from the researchers working on developing and training new LLMs, there's mostly two types of people playing with these types of models:\n * Users, that interact via applications such as _ChatGPT_ or _Gemini_.\n * Data scientists and developers that work with different libraries, such as _llangchain_ , _llama-index_ or even using _Gemini_ or _OpenAI_ apis, that simplify the process of building on top of these models.\n\n\nThe problem is - and you may have felt it - that there is a fundamental knowledge in text mining and natural language processing that is completely hidden away in consumer products or APIs. And don't take me wrong - they are great for developing cool use cases around these technologies. But, if you want to a have deeper knowledge to build complex use cases or manipulate LLMs a bit better, you'll need to check the fundamentals - particularly when the models behave as you aren't expecting.\nIn this blog post, I'm going to detail some of the most fundamental concepts you should check, if you want to be able to master large language models on a technical level!\nLet's start!\n* * *\nLearn this step by step with the interactive [AI Engineer](https://roadmap.sh/ai-engineer) and [Prompt Engineering](https://roadmap.sh/prompt-engineering) roadmaps.\n### Basic NLP /NLTK\nBasic natural language processing (NLP) is the first concept you should learn. Working with the traditional NLP pipelines will be a great lesson on how computers struggle to naturally understanding written text. With NLTK (Natural Language Toolkit), you can get the first contact with manipulating text within the context of machine learning.\nPoking around the [NLTK ](https://www.nltk.org/)library is awesome. This is one of first Python libraries to specialize in text mining within the open source world. It contains the most basic techniques to develop some nice prototypes, such as tokenization, stemming, lemmatization, part-of-speech tagging or named entity recognition.\nWith its extensive documentation and community, NLTK is a great way to start getting your hands dirty with Natural Language Processing.\n* * *\n### Word2Vec\nBy working with NLTK, you will understand that advanced AI use cases are impossible to build just using classical machine learning. While you can create basic sentiment analysis or text generation pipelines, the performance of these systems will fall significantly short as you add more complexity.\nSo.. how did we get here? To the stage where we can have generalist tools that [can crush the Turing Test](https://www.nature.com/articles/d41586-023-02361-7)?\nOne of the most famous papers that revolutionized the NLP industry was the [word2vec](https://arxiv.org/abs/1301.3781) paper. Although some research was already rolling before it, this paper brough Word Vectors to mainstream attention. It was an absolute game changer.\nAfter word2vec, humans found a way to represent words mathematically, while keeping two important features:\n * The mathematical vectors would represent words according to their meaning and were not related to how the word was written.\n * These vectors where of fixed length size and would not rely on a fixed vocabulary.\n\n\nHow are these vectors built? Mostly, by training a neural network to predict a word within a context. The weights mapped on this neural network for a specific word translate into a mathematical relationship similar to the one below:\n![Similarity between Vectors in Space - Image source: https://en.wikipedia.org/wiki/Word2vec](https://assets.insightmediagroup.io/media/wp-content/uploads/2024/08/0EYJMTwCrANRDxvBk.jpg)\nSimilarity between Vectors in Space - Image source: \nNote: _2 dimensional simplification of word vectors_\nThe fact that we can build mathematical representation of words that keep the semantic relationship of language was a much needed breakthrough in the NLP field. Word vectors are a method of word embeddings, one of the building blocks of Large Language Models.\n* * *\n### Text Classification\nNext stop is combining both embeddings and simple machine learning pipelines to understand how we can transform text into features to use in machine learning models.\nIn text classification, you normally start with logistic regression, naive bayes classifiers or tree-based models. This is where you should experiment with different tokenizers, pre-processing methods and embeddings - and where you will see performance increasing or decreasing based on your choices.\nSome of the most common text classification projects you can experiment are:\n * E-mail spam classifiers: detecting if an e-mail is spam or not;\n * Sentiment analysis - checking the polarity of a specific piece of text;\n * Topic categorization: detecting topics of different documents;\n * Language detection: checking the language of a specific text;\n\n\nCheck out some of the following competitions on kaggle:\n * Sentiment analysis: \n * Disaster tweet categorization: \n\n\n* * *\n### Text Generation\nAnother area to explore is text generation. This is a very important part of Large Language Models, particularly as most of the applications that we some of level of next-word prediction.\nWhen it comes to text generation, there are two main routes to study:\n * Traditional natural language processing, using words _as-is_ and building systems that rely on conditional probabilities.\n * Using Neural Networks, leveraging embeddings or using models such as recurrent neural networks.\n\n\nMarkov chains are a great way to learn about the intution of text generation. Although they tend to simulate text that leans on repetitive patterns, they are a great way to start.\nNaturally, as time goes by, you'll want to learn more about recurrent neural networks / embedding based methods that will completely improve the coherence and quality of your generated text.\n![Markov Chain Example - Image Source: https://en.wikipedia.org/wiki/Markov_chain#/media/File:Markovkate_01.svg](https://assets.insightmediagroup.io/media/wp-content/uploads/2024/08/0lGW9bVsY492-PZ6O.png)\nMarkov Chain Example - Image Source: \n* * *\n### Attention and Transformers\nFinally, only after studying the foundational concepts I've laid out here, should you tackle the Attention mechanism.\nThe [Attention paper](https://arxiv.org/pdf/1706.03762) was out in 2017 and it completely transformed the NLP field. If it wasn't for the attention mechanism, the applications we see today would be completely impossible.\nThe attention mechanism also relies on a deep knowledge on neural networks so, while you study them, it will be very helpful to understand how this mechanism fits in on the overall neural network theory.\nBased on the attention mechanism, the [Transformer](https://research.google/blog/transformer-a-novel-neural-network-architecture-for-language-understanding/) was born. It dethroned recurrent neural networks as the standard for text generation and understanding and helped to consolidate the attention mechanism as the standard for NLP applications. Learning attention and transformers may be challenging, but it will be much easier if you are armed with the basic NLP knowledge first :-)\n* * *\nThank you for taking the time to read this post! In summary, here are the recommendations of a study plan to understand how Large Language Models work:\n * Study basic NLP pipelines first. NLTK is a great start.\n * Tackle word vectors and deeply experiment with the word2vec architecture.\n * Jump into text classification examples and work with some parameters - such as using different tokenization or pre-processing techniques.\n * Move to text generations and get familiar with markov chains and recurrent neural networks.\n * Finally, aim to learn about the attention mechanism, the famous breakthrough that has revolutionized the text mining field.\n\n\nI've set up a Udemy course with these foundational methods [here](https://www.udemy.com/course/nlp_natural_language_processing_python_beginners/?couponCode=YOUTUBEAUG):\n![Natural Language Processing Course - Image by Author](https://assets.insightmediagroup.io/media/wp-content/uploads/2024/08/1cN0Kz7lG8AIxjPncoRcaow.png)\nNatural Language Processing Course - Image by Author\n## Register Now to Continue Reading\n### Unlock Towards Data Science with a Free Account\nAll articles on Towards Data Science are available to registered users. Create a free account today to access this article and thousands more.\nRegister for freeSign in to your account\n* * *\n![](https://assets.insightmediagroup.io/media/1787657081760_wqdt7l.jpeg)\nWritten By\n## [Ivo Bernardo](https://towardsdatascience.com/author/ivopbernardo/)\n[See all from Ivo Bernardo](https://towardsdatascience.com/author/ivopbernardo/)\n[Artificial Intelligence](https://towardsdatascience.com/tag/artificial-intelligence/)[ChatGPT](https://towardsdatascience.com/tag/chatgpt/)[Llm](https://towardsdatascience.com/tag/llm/)[Naturallanguageprocessing](https://towardsdatascience.com/tag/naturallanguageprocessing/)[Text Mining](https://towardsdatascience.com/tag/text-mining/)\nShare This Article\n * [](https://www.facebook.com/sharer/sharer.php?u=https%3A%2F%2Ftowardsdatascience.com%2Fwhat-to-study-if-you-want-to-master-llms-8d720f16c559%2F&title=What%20to%20Study%20if%20you%20Want%20to%20Master%20LLMs)\n * [](https://www.linkedin.com/shareArticle?mini=true&url=https%3A%2F%2Ftowardsdatascience.com%2Fwhat-to-study-if-you-want-to-master-llms-8d720f16c559%2F&title=What%20to%20Study%20if%20you%20Want%20to%20Master%20LLMs)\n * [](https://x.com/share?url=https%3A%2F%2Ftowardsdatascience.com%2Fwhat-to-study-if-you-want-to-master-llms-8d720f16c559%2F&text=What%20to%20Study%20if%20you%20Want%20to%20Master%20LLMs)\n\n\nTowards Data Science is a community publication. 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