Analiza danych

737
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EBOOK

The Definitive Guide to Power Query (M). Mastering complex data transformation with Power Query

Greg Deckler, Rick de Groot, Melissa de...

Data transformation is a critical step in building data models and business intelligence reports. Power Query is an invaluable tool for anyone who wants to master data transformation, and this book will equip you with the knowledge and skills to make the most of it.The Definitive Guide to Power Query (M) will help you build a solid foundation in the Power Query M language. As you progress through the chapters, you'll learn how to use that knowledge to implement advanced concepts and data transformations. This will set the stage for an uncompromisingly thorough exploration of the Power Query M Language.You'll also get to grips with optimizing performance, handling errors, and implementing efficient data processing techniques. As this is a hands-on guide, the practical examples in the chapters will help you gain the skills to apply Power Query to real-world problems and improve your data analysis capabilities.By the end of this book, you will be able to leverage all of Power Query's remarkable capabilities for data transformation.*Email sign-up and proof of purchase required

738
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EBOOK

The Economics of Data, Analytics, and Digital Transformation. The theorems, laws, and empowerments to guide your organization’s digital transformation

Bill Schmarzo, Dr. Kirk Borne

In today’s digital era, every organization has data, but just possessing enormous amounts of data is not a sufficient market discriminator. The Economics of Data, Analytics, and Digital Transformation aims to provide actionable insights into the real market discriminators, including an organization’s data-fueled analytics products that inspire innovation, deliver insights, help make practical decisions, generate value, and produce mission success for the enterprise.The book begins by first building your mindset to be value-driven and introducing the Big Data Business Model Maturity Index, its maturity index phases, and how to navigate the index. You will explore value engineering, where you will learn how to identify key business initiatives, stakeholders, advanced analytics, data sources, and instrumentation strategies that are essential to data science success. The book will help you accelerate and optimize your company’s operations through AI and machine learning.By the end of the book, you will have the tools and techniques to drive your organization’s digital transformation.Here are a few words from Dr. Kirk Borne, Data Scientist and Executive Advisor at Booz Allen Hamilton, about the book:Data analytics should first and foremost be about action and value. Consequently, the great value of this book is that it seeks to be actionable. It offers a dynamic progression of purpose-driven ignition points that you can act upon.

739
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EBOOK

The Kaggle Book. Master data science competitions with machine learning, GenAI, and LLMs - Second Edition

Luca Massaron, Bojan Tunguz, Konrad Banachewicz, Anthony...

Kaggle has become the proving ground for millions of data enthusiasts worldwide, offering what no classroom tutorial can match: battle-tested skills built through real-world challenges and the hands-on experience that employers seek. Every competition sharpens your data analysis skills, expands your network within the data scientist community, and gives compelling proof of expertise to unlock career opportunities.The first book of its kind, The Kaggle Book brings together everything you need to excel in competitions, data science projects, and beyond. This new edition includes fresh content and new chapters on Kaggle Models, time series, and Generative AI competitions, with three Kaggle Grandmasters guiding you through modeling strategies and sharing hard-earned insights accumulated over years of competition.The book extends far past competition tactics, revealing techniques for tackling image, tabular, and textual data as well as reinforcement learning tasks. You’ll also discover tips for designing better validation schemes and working confidently with both standard and unconventional evaluation metrics.Whether you want to climb the Kaggle leaderboard, accelerate your data science career, or improve the accuracy of your models, this book is for you.Join our Discord community of over 1,000 members to learn, share, and grow together!

740
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EBOOK

The Pandas Workshop. A comprehensive guide to using Python for data analysis with real-world case studies

Blaine Bateman, Saikat Basak, Thomas V. Joseph,...

The Pandas Workshop will teach you how to be more productive with data and generate real business insights to inform your decision-making. You will be guided through real-world data science problems and shown how to apply key techniques in the context of realistic examples and exercises. Engaging activities will then challenge you to apply your new skills in a way that prepares you for real data science projects.You’ll see how experienced data scientists tackle a wide range of problems using data analysis with pandas. Unlike other Python books, which focus on theory and spend too long on dry, technical explanations, this workshop is designed to quickly get you to write clean code and build your understanding through hands-on practice. As you work through this Python pandas book, you’ll tackle various real-world scenarios, such as using an air quality dataset to understand the pattern of nitrogen dioxide emissions in a city, as well as analyzing transportation data to improve bus transportation services.By the end of this data analytics book, you’ll have the knowledge, skills, and confidence you need to solve your own challenging data science problems with pandas.

741
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EBOOK

The Tableau Workshop. A practical guide to the art of data visualization with Tableau

Sumit Gupta, Sylvester Pinto, Shweta Sankhe-Savale, JC...

Learning Tableau has never been easier, thanks to this practical introduction to storytelling with data. The Tableau Workshop breaks down the analytical process into five steps: data preparation, data exploration, data analysis, interactivity, and distribution of dashboards. Each stage is addressed with a clear walkthrough of the key tools and techniques you'll need, as well as engaging real-world examples, meaningful data, and practical exercises to give you valuable hands-on experience.As you work through the book, you'll learn Tableau step by step, studying how to clean, shape, and combine data, as well as how to choose the most suitable charts for any given scenario. You'll load data from various sources and formats, perform data engineering to create new data that delivers deeper insights, and create interactive dashboards that engage end-users.All concepts are introduced with clear, simple explanations and demonstrated through realistic example scenarios. You'll simulate real-world data science projects with use cases such as traffic violations, urban populations, coffee store sales, and air travel delays.By the end of this Tableau book, you'll have the skills and knowledge to confidently present analytical results and make data-driven decisions.

742
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EBOOK

The TensorFlow Workshop. A hands-on guide to building deep learning models from scratch using real-world datasets

Matthew Moocarme, Anthony So, Anthony Maddalone

Getting to grips with tensors, deep learning, and neural networks can be intimidating and confusing for anyone, no matter their experience level. The breadth of information out there, often written at a very high level and aimed at advanced practitioners, can make getting started even more challenging.If this sounds familiar to you, The TensorFlow Workshop is here to help. Combining clear explanations, realistic examples, and plenty of hands-on practice, it’ll quickly get you up and running.You’ll start off with the basics – learning how to load data into TensorFlow, perform tensor operations, and utilize common optimizers and activation functions. As you progress, you’ll experiment with different TensorFlow development tools, including TensorBoard, TensorFlow Hub, and Google Colab, before moving on to solve regression and classification problems with sequential models.Building on this solid foundation, you’ll learn how to tune models and work with different types of neural network, getting hands-on with real-world deep learning applications such as text encoding, temperature forecasting, image augmentation, and audio processing.By the end of this deep learning book, you’ll have the skills, knowledge, and confidence to tackle your own ambitious deep learning projects with TensorFlow.

743
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EBOOK

The Ultimate Guide to Snowpark. Design and deploy Snowflake Snowpark with Python for efficient data workloads

Shankar Narayanan SGS, Vivekanandan SS, Jeff Hollan

Snowpark is a powerful framework that helps you unlock numerous possibilities within the Snowflake Data Cloud. However, without proper guidance, leveraging the full potential of Snowpark with Python can be challenging. Packed with practical examples and code snippets, this book will be your go-to guide to using Snowpark with Python successfully.The Ultimate Guide to Snowpark helps you develop an understanding of Snowflake Snowpark and how it enables you to implement workloads in data engineering, data science, and data applications within the Data Cloud. From configuration and coding styles to workloads such as data manipulation, collection, preparation, transformation, aggregation, and analysis, this guide will equip you with the right knowledge to make the most of this framework. You'll discover how to build, test, and deploy data pipelines and data science models. As you progress, you’ll deploy data applications natively in Snowflake and operate large language models (LLMs) using Snowpark container services.By the end of this book, you'll be able to leverage Snowpark's capabilities and propel your career as a Snowflake developer to new heights.

745
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EBOOK

Time Series Analysis with Python Cookbook. Practical recipes for the complete time series workflow, from modern data engineering to advanced forecasting and anomaly detection - Second Edition

Tarek A. Atwan

To use time series data to your advantage, you need to master data preparation, analysis, and forecasting. This fully refreshed second edition helps you unlock insights from time series data with new chapters on probabilistic models, signal processing techniques, and new content on transformers. You’ll work with the latest releases of popular libraries like Pandas, Polars, Sktime, stats models, stats forecast, Darts, and Prophet through up-to-date examples.You'll hit the ground running by ingesting time series data from various sources and formats and learn strategies for handling missing data, dealing with time zones and custom business days, and detecting anomalies using intuitive statistical methods.Through detailed instructions, you'll explore forecasting using classical statistical models such as Holt-Winters, SARIMA, and VAR, and learn practical techniques for handling non-stationary data using power transforms, ACF and PACF plots, and decomposing time series data with seasonal patterns. The recipes then level up to cover more advanced topics such as building ML and DL models using TensorFlow and PyTorch and applying probabilistic modeling techniques. In this part, you’ll also be able to evaluate, compare, and optimize models, finishing with a strong command of wrangling data with Python.

746
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EBOOK

Time Series Analysis with Spark. A practical guide to processing, modeling, and forecasting time series with Apache Spark

Yoni Ramaswami, Dael Williamson, Jan Govaere

Written by Databricks Senior Solutions Architect Yoni Ramaswami, whose expertise in Data and AI has shaped innovative digital transformations across industries, this comprehensive guide bridges foundational concepts of time series analysis with the Spark framework and Databricks, preparing you to tackle real-world challenges with confidence.From preparing and processing large-scale time series datasets to building reliable models, this book offers practical techniques that scale effortlessly for big data environments. You’ll explore advanced topics such as scaling your analyses, deploying time series models into production, Generative AI, and leveraging Spark's latest features for cutting-edge applications across industries. Packed with hands-on examples and industry-relevant use cases, this guide is perfect for data engineers, ML engineers, data scientists, and analysts looking to enhance their expertise in handling large-scale time series data.By the end of this book, you’ll have mastered the skills to design and deploy robust, scalable time series models tailored to your unique project needs—qualifying you to excel in the rapidly evolving world of big data analytics.*Email sign-up and proof of purchase required

747
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EBOOK

Tomographic imaging in environmental, industrial and medical applications

Tomasz Rymarczyk

Monografia przedstawia szeroki zakres dziedzin, w których znajduje zastosowanie tomografia. W nowatorski sposób prezentuje ważne zagadnienia z zakresu rozwiązywania problemów odwrotnych w tomografii przemysłowej oraz prototypów, pomiarów i modeli układów złożonych. Rozważania i dogłębna analiza numeryczna zastosowana na potrzeby rozwiązania problemu naprzód i odwrotnego czynią tę pracę wyjątkową w skali krajowej i międzynarodowej. Autor wniósł znaczący wkład w rozwój naukowej dyscypliny: Informatyka w aspekcie praktycznych zastosowań, zarówno przemysłowych, jak i medycznych. Używał tomografii procesowej do badania bardzo dużych obiektów. Obiekty te to wielohektarowe obszary położone w znacznej odległości od siebie. To innowacyjne zastosowanie tomografii procesowej

748
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EBOOK

Train Your Own GPT. How to Train ChatGPT to Think Like You

MrExcel's Holy Macro! Books, Bill Jelen

This book offers a hands-on guide to building GPTs that learn, adapt, and respond in your unique style. It begins by breaking down how ChatGPT understands instructions, then guides readers through training personalized GPTs that automate tasks, create structured outputs, and integrate across business applications.Readers gain practical experience in linking GPTs with Excel, Power Automate, and APIs while exploring advanced memory, context, and action features. With clear guidance, examples, and exercises, the book bridges theory and application to make AI personalization achievable for any professional.By the end, readers can confidently design custom AI agents that extend beyond ChatGPT’s limits—capable of mirroring workflows, preferences, and communication style for real-world automation and creativity.

749
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EBOOK

Transformative Magic of M Code in Power Query Excel & Power BI. A Beginner's Guide to Get the Data Structures Needed to Create Insightful Data Analysis Solutions

MrExcel's Holy Macro! Books, Mike Girvin

This book begins with the fundamentals, introducing key concepts like let expressions, keywords, and identifiers, before guiding you through more advanced techniques such as creating custom functions, handling diverse data types, and building reusable queries. Each chapter combines theoretical insights with practical examples, empowering you to handle complex data challenges with confidence.As you progress, you’ll learn how to master lookup formulas, manipulate data with unpivot, append, join, and group operations, and explore advanced table transformations. A dedicated section on data connectors provides in-depth knowledge of importing data from various sources and locales, ensuring flexibility and adaptability.The book concludes with practical data modeling projects that include handling inconsistent tables, appending multiple files, and building dynamic SharePoint connections. With a final focus on privacy levels and data security, this book equips you to use Power Query effectively and securely in real-world scenarios.

750
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EBOOK

Transformers for Natural Language Processing and Computer Vision. Explore Generative AI and Large Language Models with Hugging Face, ChatGPT, GPT-4V, and DALL-E 3 - Third Edition

Denis Rothman

Transformers for Natural Language Processing and Computer Vision, Third Edition, explores Large Language Model (LLM) architectures, practical applications, and popular platforms (Hugging Face, OpenAI, and Google Vertex AI) used for Natural Language Processing (NLP) and Computer Vision (CV).The book guides you through a range of transformer architectures from foundation models and generative AI. You’ll pretrain and fine-tune LLMs and work through different use cases, from summarization to question-answering systems leveraging embedding-based search. You'll also implement Retrieval Augmented Generation (RAG) to enhance accuracy and gain greater control over your LLM outputs. Additionally, you’ll understand common LLM risks, such as hallucinations, memorization, and privacy issues, and implement mitigation strategies using moderation models alongside rule-based systems and knowledge integration.Dive into generative vision transformers and multimodal architectures, and build practical applications, such as image and video classification. Go further and combine different models and platforms to build AI solutions and explore AI agent capabilities.This book provides you with an understanding of transformer architectures, including strategies for pretraining, fine-tuning, and LLM best practices.

751
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EBOOK

Uczenie maszynowe dla programistów

Drew Conway, John Myles White

Wyciągnij najlepsze wnioski z dostępnych danych! Maszyna myśląca jak człowiek to marzenie ludzkości. Dzięki dzisiejszej wiedzy i dostępnym narzędziom wciąż przybliżamy się do jego spełnienia. Zastanawiasz się, jak nauczyć maszynę myślenia? Jak sprawić, żeby podejmowała trafne decyzje oraz przewidywała najbliższą przyszłość na podstawie przygotowanych modeli? Na to i wiele innych pytań odpowiada ta wspaniała książka. Dzięki niej poznasz język R, nauczysz się eksplorować dostępne dane, określać wartość mediany i odchylenia standardowego oraz wizualizować powiązania między kolumnami. Gdy opanujesz już solidne podstawy teoretyczne, możesz śmiało przejść do kolejnych rozdziałów i zapoznać się z klasyfikacją binarną, tworzeniem rankingów oraz modelowaniem przyszłości przy użyciu regresji. Ponadto zrozumiesz, jak tworzyć systemy rekomendacyjne, analizować sieci społeczne oraz łamać szyfry. Książka ta jest doskonałą lekturą dla pasjonatów analizy danych i wyciągania z nich wniosków. Każdy rozdział książki jest poświęcony konkretnemu zagadnieniu uczenia maszynowego: klasyfikacji, predykcji, regresji, optymalizacji i wreszcie rekomendacji. Czytelnik nauczy się konstruować proste algorytmy uczenia maszynowego (i przepuszczać przez nie próbki danych) za pomocą języka programowania R. Uczenie maszynowe dla programistów jest więc znakomitą lekturą dla programistów parających się czy to projektami komercyjnymi, czy to rządowymi, czy wreszcie akademickimi. Skonstruuj prosty klasyfikator bayesowski odróżniający wiadomości treściwe od niechcianych na podstawie ich zawartości. Używaj regresji liniowej do przewidywania liczby odwiedzin najpopularniejszych stron WWW. Naucz się optymalizacji, próbując złamać prosty szyfr literowy. Statystycznie skonfrontuj poglądy polityków, używając rejestru głosowań. Zbuduj system rekomendacji wartościowych twitterowców. Naucz się czytać i analizować dane! Książka ta stanowi świetny przegląd przypadków i tuzina różnych technik uczenia maszynowego. Jest ukierunkowana na proces dochodzenia do rozwiązania, a nie gotowe recepty ani abstrakcyjne teorie; dzięki temu jej materiał jest dostępny dla wszystkich programistów, ale też przysłowiowych „umysłów ścisłych” — Max Shron, OkCupid  

752
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EBOOK

Uczenie maszynowe w Pythonie. Leksykon kieszonkowy

Matt Harrison

Uczenie maszynowe i nauka o danych są dziś ogromnie popularne. Dziedziny te szybko się rozwijają, a poszczególne techniki uczenia maszynowego znajdują coraz więcej różnorodnych zastosowań. Wiedza, którą można uzyskać dzięki odpowiedniemu przygotowaniu danych i ich eksploracji, często jest bezcenna. Umiejętność ich analizy oraz wiedza o możliwych sposobach rozwiązywania problemów napotykanych podczas uczenia maszynowego są więc dużymi atutami i mogą być wykorzystywane w wielu gałęziach nauki, techniki i biznesu. Z tego zwięzłego przewodnika po technikach uczenia maszynowego opartego na strukturalnych danych skorzystają programiści, badacze, osoby zajmujące się nauką o danych oraz twórcy systemów sztucznej inteligencji. Znalazł się tu wyczerpujący opis procesu uczenia maszynowego i klasyfikacji danych strukturalnych. Przedstawiono też metody klastrowania danych, analizy regresji, redukcji wymiarowości oraz inne ważne zagadnienia. Prezentowane treści zostały zilustrowane uwagami, tabelami i przykładami kodu. Nie zabrakło opisu przydatnych bibliotek, niezwykle użytecznych w pracy analityka danych. W efekcie książka pozwala na szybkie rozwiązywanie różnego rodzaju problemów związanych z przetwarzaniem danych strukturalnych. W książce między innymi: klasyfikacja, oczyszczanie i uzupełnianie braków danych eksploracyjna analiza danych i dobór modelu danych przykłady analiz regresji redukcja wymiarowości potoki w bibliotece scikit-learn Uczenie maszynowe: nowy wymiar analizy danych!