introduction to information retrieval

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Introduction To Information Retrieval

Author : Christopher D. Manning
ISBN : 9781139472104
Genre : Computers
File Size : 54. 76 MB
Format : PDF
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Class-tested and coherent, this textbook teaches classical and web information retrieval, including web search and the related areas of text classification and text clustering from basic concepts. It gives an up-to-date treatment of all aspects of the design and implementation of systems for gathering, indexing, and searching documents; methods for evaluating systems; and an introduction to the use of machine learning methods on text collections. All the important ideas are explained using examples and figures, making it perfect for introductory courses in information retrieval for advanced undergraduates and graduate students in computer science. Based on feedback from extensive classroom experience, the book has been carefully structured in order to make teaching more natural and effective. Slides and additional exercises (with solutions for lecturers) are also available through the book's supporting website to help course instructors prepare their lectures.

Organising Knowledge

Author : J. E. Rowley
ISBN : STANFORD:36105038360355
Genre : Language Arts & Disciplines
File Size : 29. 83 MB
Format : PDF
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Neuronale Netze Selbst Programmieren

Author : Tariq Rashid
ISBN : 9783960101031
Genre : Computers
File Size : 54. 38 MB
Format : PDF, ePub
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Neuronale Netze sind Schlüsselelemente des Deep Learning und der Künstlichen Intelligenz, die heute zu Erstaunlichem in der Lage sind. Sie sind Grundlage vieler Anwendungen im Alltag wie beispielsweise Spracherkennung, Gesichtserkennung auf Fotos oder die Umwandlung von Sprache in Text. Dennoch verstehen nur wenige, wie neuronale Netze tatsächlich funktionieren. Dieses Buch nimmt Sie mit auf eine unterhaltsame Reise, die mit ganz einfachen Ideen beginnt und Ihnen Schritt für Schritt zeigt, wie neuronale Netze arbeiten: - Zunächst lernen Sie die mathematischen Konzepte kennen, die den neuronalen Netzen zugrunde liegen. Dafür brauchen Sie keine tieferen Mathematikkenntnisse, denn alle mathematischen Ideen werden behutsam und mit vielen Illustrationen und Beispielen erläutert. Eine Kurzeinführung in die Analysis unterstützt Sie dabei. - Dann geht es in die Praxis: Nach einer Einführung in die populäre und leicht zu lernende Programmiersprache Python bauen Sie allmählich Ihr eigenes neuronales Netz mit Python auf. Sie bringen ihm bei, handgeschriebene Zahlen zu erkennen, bis es eine Performance wie ein professionell entwickeltes Netz erreicht. - Im nächsten Schritt tunen Sie die Leistung Ihres neuronalen Netzes so weit, dass es eine Zahlenerkennung von 98 % erreicht – nur mit einfachen Ideen und simplem Code. Sie testen das Netz mit Ihrer eigenen Handschrift und werfen noch einen Blick in das mysteriöse Innere eines neuronalen Netzes. - Zum Schluss lassen Sie das neuronale Netz auf einem Raspberry Pi Zero laufen. Tariq Rashid erklärt diese schwierige Materie außergewöhnlich klar und verständlich, dadurch werden neuronale Netze für jeden Interessierten zugänglich und praktisch nachvollziehbar.

Introduction To Information Retrieval And Quantum Mechanics

Author : Massimo Melucci
ISBN : 9783662483138
Genre : Computers
File Size : 66. 24 MB
Format : PDF, Docs
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This book introduces the quantum mechanical framework to information retrieval scientists seeking a new perspective on foundational problems. As such, it concentrates on the main notions of the quantum mechanical framework and describes an innovative range of concepts and tools for modeling information representation and retrieval processes. The book is divided into four chapters. Chapter 1 illustrates the main modeling concepts for information retrieval (including Boolean logic, vector spaces, probabilistic models, and machine-learning based approaches), which will be examined further in subsequent chapters. Next, chapter 2 briefly explains the main concepts of the quantum mechanical framework, focusing on approaches linked to information retrieval such as interference, superposition and entanglement. Chapter 3 then reviews the research conducted at the intersection between information retrieval and the quantum mechanical framework. The chapter is subdivided into a number of topics, and each description ends with a section suggesting the most important reference resources. Lastly, chapter 4 offers suggestions for future research, briefly outlining the most essential and promising research directions to fully leverage the quantum mechanical framework for effective and efficient information retrieval systems. This book is especially intended for researchers working in information retrieval, database systems and machine learning who want to acquire a clear picture of the potential offered by the quantum mechanical framework in their own research area. Above all, the book offers clear guidance on whether, why and when to effectively use the mathematical formalism and the concepts of the quantum mechanical framework to address various foundational issues in information retrieval.

Organizing Knowledge

Author : J. E. Rowley
ISBN : 1857420047
Genre : Computers
File Size : 62. 57 MB
Format : PDF, ePub, Mobi
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Introduction To Modern Information Retrieval

Author : Gerard Salton
ISBN : 0070544840
Genre : Computers
File Size : 23. 42 MB
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Examines Concepts, Functions & Processes of Information Retrieval Systems

Introduction To Information Retrieval And Text Analytics

Author : Daniel J. Taipala
ISBN : 136445310X
Genre :
File Size : 36. 71 MB
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This book introduces some of the key concepts in both information retrieval (the ability to search for textual information) and text analytics (the ability to apply statistical procedures to gain insight into large data sets). These topics are increasingly important given the exponential increases in data collection from internet connected devices. Learning the concepts of information retrieval, machine learning, Big Data, and analytics include both theory and implementation elements. It is not enough to study the theory behind the statistical methods employed, or to look at the attributes of infrastructure solutions such as Hadoop. These elements, and more, are essential to learning the subject, but one must go further and study the implementation of information retrieval and analytics solutions. To address the need for both theory and application, this book takes a slightly different approach as it takes reader on a fascinating journey that begins by learning basic principles of information retrieval and analytics. We then continue by exploring Hadoop, examining fundamental map-reduce algorithms implemented in python, and finally demonstrating how these concepts are applied with common use cases.

An Introduction To Information Retrieval

Author : CTI Reviews
ISBN : 9781467255462
Genre : Education
File Size : 50. 67 MB
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Facts101 is your complete guide to An Introduction to Information Retrieval. In this book, you will learn topics such as as those in your book plus much more. With key features such as key terms, people and places, Facts101 gives you all the information you need to prepare for your next exam. Our practice tests are specific to the textbook and we have designed tools to make the most of your limited study time.

Strafgesetzbuch Stgb 2016

Author : Deutschland
ISBN : 9785392033454
Genre : Law
File Size : 63. 87 MB
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Ausfertigungsdatum: 15.05.1871 Vollzitat: "Strafgesetzbuch in der Fassung der Bekanntmachung vom 13. November 1998 (BGBl. I S. 3322), das durch Artikel 1 des Gesetzes vom 24. September 2013 (BGBl. I S. 3671) geändert worden ist" Stand: Neugefasst durch Bek. v. 13.11.1998 I 3322; Zuletzt geändert durch Art. 23 G v. 20.11.2015 I 2010 Hinweis: Änderung durch Art. 1 G v. 20.11.2015 I 2025 (Nr. 46) noch nicht berücksichtigt!

Das Inoffizielle Handbuch F R Lego Mindstorms Roboter

Author : Jonathan B. Knudsen
ISBN : 3897211645
Genre :
File Size : 49. 24 MB
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