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Author Posts - Machine Learning

2 Articles
article-image-the-complete-guide-to-nlp-foundations-techniques-and-large-language-models
Lior Gazit, Meysam Ghaffari
13 Nov 2024
10 min read
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The Complete Guide to NLP: Foundations, Techniques, and Large Language Models

Lior Gazit, Meysam Ghaffari
13 Nov 2024
10 min read
Introduction In the rapidly evolving field of Natural Language Processing (NLP), staying ahead of technological advancements while mastering foundational principles is crucial for professionals aiming to drive innovation. "Mastering NLP from Foundations to LLMs" by Packt Publishing serves as a comprehensive guide for those seeking to deepen their expertise. Authored by leading figures in Machine Learning and NLP, this text bridges the gap between theoretical knowledge and practical applications. From understanding the mathematical underpinnings to implementing sophisticated NLP models, this book equips readers with the skills necessary to solve today’s complex challenges. With insights into Large Language Models (LLMs) and emerging trends, it is an essential resource for both aspiring and seasoned NLP practitioners, providing the tools needed to excel in the data-driven world of AI. In-Depth Analysis of Technology NLP is at the forefront of technological innovation, transforming how machines interpret, generate, and interact with human language. Its significance spans multiple industries, including healthcare, finance, and customer service. At the core of NLP lies a robust integration of foundational techniques such as linear algebra, statistics, and Machine Learning. Linear algebra is fundamental in converting textual data into numerical representations, such as word embeddings. Statistics play a key role in understanding data distributions and applying probabilistic models to infer meaning from text. Machine Learning algorithms, like decision trees, support vector machines, and neural networks, are utilized to recognize patterns and make predictions from text data. "Mastering NLP from Foundations to LLMs" delves into these principles, providing extensive coverage on how they underpin complex NLP tasks. For example, text classification leverages Machine Learning to categorize documents, enhancing functionalities like spam detection and content organization. Sentiment analysis uses statistical models to gauge user opinions, helping businesses understand consumer feedback. Chatbots combine these techniques to generate human-like responses, improving user interaction. By meticulously elucidating these technologies, the book highlights their practical applications, demonstrating how foundational knowledge translates to solving real-world problems. This seamless integration of theory and practice makes it an indispensable resource for modern tech professionals seeking to master NLP. Adjacent Topics The realm of NLP is witnessing groundbreaking advancements, particularly in LLMs and hybrid learning paradigms that integrate multimodal data for richer contextual understanding. These innovations are setting new benchmarks in text understanding and generation, driving enhanced applications in areas like automated customer service and real-time translation. "Mastering NLP from Foundations to LLMs" emphasizes best practices in text preprocessing, such as data cleaning, normalization, and tokenization, which are crucial for improving model performance. Ensuring robustness and fairness in NLP models involves techniques like resampling, weighted loss functions, and bias mitigation strategies to address inherent data disparities. The book also looks ahead at future directions in NLP, as predicted by industry experts. These include the rise of AI-driven organizational structures where decentralized AI work is balanced with centralized data governance. Additionally, there is a growing shift towards smaller, more efficient models that maintain high performance with reduced computational resources. "Mastering NLP from Foundations to LLMs" encapsulates these insights, offering a forward-looking perspective on NLP and providing readers with a roadmap to stay ahead in this rapidly advancing field. Problem-Solving with Technology "Mastering NLP from Foundations to LLMs" addresses several critical issues in NLP through innovative methodologies. The book first presents common workflows with LLMs such as prompting via APIs and building a Langchain pipeline. From there, the book takes on heavier challenges. One significant challenge is managing multiple models and optimizing their performance for specific tasks. The book introduces the concept of using multiple LLMs in parallel, with each model specialized for a particular function, such as a medical domain or backend development in Python. This approach reduces overall model size and increases efficiency by leveraging specialized models rather than a single, monolithic one. Another issue is optimizing resource allocation. The book discusses strategies like prompt compression for cost reduction, which involves compacting input prompts to minimize token count without sacrificing performance. This technique addresses the high costs associated with large-scale model deployments, offering businesses a cost-effective way to implement NLP solutions. Additionally, the book explores fault-tolerant multi-agent systems using frameworks like Microsoft’s AutoGen. By assigning specific roles to different LLMs, these systems can work together to accomplish complex tasks, such as professional-level code generation and error checking. This method enhances the reliability and robustness of AI-assisted solutions. Through these problem-solving capabilities, "Mastering NLP from Foundations to LLMs" provides practical solutions that make advanced technologies more accessible and efficient for real-world applications. Unique Insights and Experiences Chapter 11 of "Mastering NLP from Foundations to LLMs" offers a wealth of expert insights that illuminate the future of NLP. Contributions from industry leaders like Xavier Amatriain (VP, Google) and Nitzan Mekel-Bobrov (CAIO, Ebay) explore hybrid learning paradigms and AI integration into organizational structures, shedding light on emerging trends and practical applications. The authors, Lior Gazit and Meysam Ghaffari, share their personal experiences of implementing NLP technologies in diverse sectors, ranging from finance to healthcare. Their journey underscores the importance of a solid foundation in mathematical and statistical principles, combined with innovative problem-solving approaches. This book empowers readers to tackle advanced NLP challenges by providing comprehensive techniques and actionable advice. From addressing class imbalances to enhancing model robustness and fairness, the authors equip practitioners with the skills needed to develop robust NLP solutions, ensuring that readers are well-prepared to push the boundaries of what’s possible in the field. Conclusion "Mastering NLP from Foundations to LLMs" is an 11-course meal that offers a comprehensive journey through the intricate landscape of NLP. It serves as both a foundational text and an advanced guide, making it invaluable for beginners seeking to establish a solid grounding and experienced practitioners aiming to deepen their expertise. Covering everything from basic mathematical principles to advanced NLP applications like LLMs, the book stands out as an essential resource. Throughout its chapters, readers gain insights into practical problem-solving strategies, best practices in text preprocessing, and emerging trends predicted by industry experts. "Mastering NLP from Foundations to LLMs" equips readers with the skills needed to tackle advanced NLP challenges, making it a comprehensive, indispensable guide for anyone looking to master the evolving field of NLP. For detailed guidance and expert advice, dive into this book and unlock the full potential of NLP techniques and applications in your projects. Author BioLior Gazit is a highly skilled Machine Learning professional with a proven track record of success in building and leading teams drive business growth. He is an expert in Natural Language Processing and has successfully developed innovative Machine Learning pipelines and products. He holds a Master degree and has published in peer-reviewed journals and conferences. As a Senior Director of the Machine Learning group in the Financial sector, and a Principal Machine Learning Advisor at an emerging startup, Lior is a respected leader in the industry, with a wealth of knowledge and experience to share. With much passion and inspiration, Lior is dedicated to using Machine Learning to drive positive change and growth in his organizations.Meysam Ghaffari is a Senior Data Scientist with a strong background in Natural Language Processing and Deep Learning. Currently working at MSKCC, where he specialize in developing and improving Machine Learning and NLP models for healthcare problems. He has over 9 years of experience in Machine Learning and over 4 years of experience in NLP and Deep Learning. He received his Ph.D. in Computer Science from Florida State University, His MS in Computer Science - Artificial Intelligence from Isfahan University of Technology and his B.S. in Computer Science at Iran University of Science and Technology. He also worked as a post doctoral research associate at University of Wisconsin-Madison before joining MSKCC.
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Miroslaw Staron
25 Oct 2024
10 min read
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Mastering Machine Learning: Best Practices and the Future of Generative AI for Software Engineers

Miroslaw Staron
25 Oct 2024
10 min read
IntroductionThe field of machine learning (ML) and generative AI has rapidly evolved from its foundational concepts, such as Alan Turing's pioneering work on intelligence, to the sophisticated models and applications we see today. While Turing’s ideas centered on defining and detecting intelligence, modern applications stretch the definition and utility of intelligence in the realm of artificial neural networks, language models, and generative adversarial networks. For software engineers, this evolution presents both opportunities and challenges, from creating intelligent models to harnessing tools that streamline development and deployment processes. This article explores the best practices in machine learning, insights on deploying generative AI in real-world applications, and the emerging tools that software engineers can utilize to maximize efficiency and innovation.Exploring Machine Learning and Generative AI: From Turing’s Legacy to Today's Best Practices When Alan Turing developed his famous Turing test for intelligence, computers, and software were completely different from what we are used to now. I’m certain that Turing did not think about Large Language Models (LLMs), Generative AI (GenAI), Generative Adversarial Networks, or Diffusers. Yet, this test for intelligence is equally useful today as it was at the time when it was developed. Perhaps our understanding of intelligence has evolved since then. We consider intelligence on different levels, for example, at the philosophical level and the computer science level. At the philosophical level, we still try to understand what intelligence really is, how to measure it, and how to replicate it. At the computer science level, we develop new algorithms that can tackle increasingly complex problems, utilize increasingly complex datasets, and provide more complex output. In the following figure, we can see two different solutions to the same problem. On the left-hand side, the solution to the Fibonacci problem uses good old-fashioned programming where the programmer translates the solution into a program. On the right-hand side, we see a machine learning solution – the programmer provides example data and uses an algorithm to find the pattern just to replicate it later.   Figure 1. Fibonacci problem solved with a traditional algorithm (left-hand side) and machine learning’s linear regression (right-hand side). Although the traditional way is slow, it can be mathematically proven to be correct for all numbers, whereas the machine learning algorithm is fast, but we do not know if it renders correct results for all numbers. Although the above is a simple example, it illustrates that the difference between a model and an algorithm is not that great. Essentially, the machine learning model on the right is a complex function that takes an input and produces an output. The same is true for the generative AI models.  Generative AI Generative AI is much more complex than the algorithms used for Fibonacci, but it works in the same way – based on the data it creates new output. Instead of predicting the next Fibonacci number, LLMs predict the next token, and diffusers predict values of new pixels. Whether that is intelligence, I am not qualified to judge. What I am qualified to say is how to use these kinds of models in modern software engineering.  When I wrote the book Machine Learning Infrastructure and Best Practices for Software Engineers1, we could see how powerful ChatGPT 3.5 is. In my profession, software engineers use it to write programs, debug them and even to improve the performance of the programs. I call it being a superprogrammer. Suddenly, when software engineers get these tools, they become team leader for their bots, who support them – these bots are the copilots for the software engineers. But using these tools and models is just the beginning.  Harnessing NPUs and Mini LLMs for Efficient AI Deployment Neural Processing Units (NPUs) have started to become more popular in modern computers, which addresses the challenges with running language models locally, without the access to internet. The local execution reduces latency and reduces security risks of hijacking information when it is sent between the model and the client. However, the NPUs are significantly less powerful than data centers, and therefore we can only use them with small language models – so-called mini-LLMs. An example of such a model is Phi-3-mini model developed by Microsoft2. In addition to NPUs, frameworks like ONNX appeared, which made it possible to quickly interchange models between GPUs and NPUs – you could train the model on a powerful GPU and use it on a small NPU thanks to these frameworks.  Since AI take so much space in modern hardware and software, GeekbenchAI3 is a benchmark suite that allows us to quantify and compare AI capabilities of modern hardware. I strongly recommend to take it for a spin to check what we can do with the hardware that we have at hands. Now, hardware is only as good as the software, and there, we also saw a lot of important improvements.  Ollama and LLM frameworks In my book, I presented the methods and tools to work with generative AI (as well as the classical ML). It’s a solid foundation for designing, developing, testing and deploying AI systems. However, if we want to utilize LLMs without the hassle of setting up the entire environment, we can use frameworks like Ollama4. The Ollama framework seamlessly downloads and deploys LLMs on a local machine if we have enough resources. Once installing the framework, we can type ollama run phi-3 to start a conversation with the model. The framework provides a set of user interfaces, web services and other types of mechanisms needed to construct a fully-fledged machine learning software5.  We can use it locally for all kinds of tasks, e.g., in finance6 . What’s Next: Embracing the Future of AI in Software Engineering As generative AI continues to evolve, its role in software engineering is set to expand in exciting ways. Here are key trends and opportunities that software engineers should focus on to stay ahead of the curve: Mastering AI-Driven Automation: AI will increasingly take over repetitive programming and testing tasks, allowing engineers to focus on more creative and complex problems. Engineers should leverage AI tools like GitHub Copilot and Ollama to automate mundane tasks such as bug fixing, code refactoring, and even performance optimization. Actionable Step: Start integrating AI-driven tools into your development workflow. Experiment with automating unit tests, continuous integration pipelines, or even deployment processes using AI. AI-Enhanced Collaboration: Collaboration with AI systems, or "AI copilots," will be a crucial skill. The future of software engineering will involve not just individual developers using AI tools but entire teams working alongside AI agents that facilitate communication, project management, and code integration. Actionable Step: Learn to delegate tasks to AI copilots and explore collaborative platforms that integrate AI to streamline team efforts. Tools like Microsoft Teams and Github Copilot integrated with AI assistants are a good start. On-device AI and Edge Computing: The rise of NPUs and mini-LLMs signals a shift towards on-device AI processing. This opens opportunities for real-time AI applications in areas with limited connectivity or stringent privacy requirements. Software engineers should explore how to optimize and deploy AI models on edge devices. Actionable Step: Experiment with deploying AI models on edge devices using frameworks like ONNX and test how well they perform on NPUs or embedded systems. To stay competitive and relevant, software engineers need to continuously adapt by learning new AI technologies, refining their workflows with AI assistance, and staying attuned to emerging ethical challenges. Whether by mastering AI automation, optimizing edge deployments, or championing ethical practices, the future belongs to those who embrace AI as both a powerful tool and a collaborative partner. For software engineers ready to dive deeper into the transformative world of machine learning and generative AI, Machine Learning Infrastructure and Best Practices for Software Engineers offers a comprehensive guide packed with practical insights, best practices, and hands-on techniques.ConclusionAs generative AI technologies continue to advance, software engineers are at the forefront of a new era of intelligent and automated development. By understanding and implementing best practices, engineers can leverage these tools to streamline workflows, enhance collaborative capabilities, and push the boundaries of what is possible in software development. Emerging hardware solutions like NPUs, edge computing capabilities, and advanced frameworks are opening new pathways for deploying efficient AI solutions. To remain competitive and innovative, software engineers must adapt to these evolving technologies, integrating AI-driven automation and collaboration into their practices and embracing the future with curiosity and responsibility. This journey not only enhances technical skills but also invites engineers to become leaders in shaping the responsible and creative applications of AI in software engineering.Author BioMiroslaw Staron is a professor of Applied IT at the University of Gothenburg in Sweden with a focus on empirical software engineering, measurement, and machine learning. He is currently editor-in-chief of Information and Software Technology and co-editor of the regular Practitioner’s Digest column of IEEE Software. He has authored books on automotive software architectures, software measurement, and action research. He also leads several projects in AI for software engineering and leads an AI and digitalization theme at Software Center. He has written over 200 journal and conference articles.
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