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出版社:東南大學
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ISBN:9787564159108
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作者:(美)裡扎
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頁數:260
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出版日期:2015-09-01
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印刷日期:2015-09-01
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包裝:平裝
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開本:16開
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版次:1
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印次:1
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字數:338千字
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在裡扎等編著的《Spark高級數據分析(影印版 )(英文版)》這本實用書籍中,4位Cloude陽公司 的數據科學家講解了一繫列自包含模式,用於在 Spark中進行大規模數據分析。本書作者們把Spark、 統計原理和現實世界中的數據集合放到一起,通過實 例教你如何解決數據分析問題。 你將從Spark及其生態繫統的介紹開始,然後深 入運用標準技巧的模式——歸類、聚合過濾及異常檢 測等,這些技巧被用於生物基因、安全和金融等行業 。如果你對機器學習和統計學有初步了解,使用Java 、Pytton或者Scala編程,就會發現這些模式對於你 的數據分析應用程序會非常有用。 模式包括: 音樂推薦和Audioscrobbler數據集合 用決策樹分析森林覆蓋 用K均值聚合檢測網絡流量中的異常 用潛在語義分析理解維基百科 用GraphX分析共生網絡 用地理空間和瞬態數據分析紐約市出租車路線的 數據 用蒙地卡羅模擬來估計金融風險 分析基因數據和BDG項目 通過PySpark和Thunder分析神經造影數據
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Foreword Preface 1. Analyzing Big Data The Challenges of Data Science Introducing Apache Spark About This Book 2. Introduction to Data Analysis with Scala and Spark Scala for Data Scientists The Spark Programming Model Record Linkage Getting Started: The Spark Shell and SparkContext Bringing Data from the Cluster to the Client Shipping Code from the Client to the Cluster Structuring Data with Tuples and Case Classes Aggregations Creating Histograms Summary Statistics for Continuous Variables Creating Reusable Code for Computing Summary Statistics Simple Variable Selection and Scoring Where to Go from Here 3. Recommending Music and the Audioscrobbler Data Set Data Set The Alternating Least Squares Recommender Algorithm Preparing the Data Building a First Model Spot Checking Recommendations Evaluating Recommendation Quality Computing AUC Hyperparameter Selection Making Recommendations Where to Go from Here 4. Predicting Forest Cover with Decision Trees Fast Forward to Regression Vectors and Features Training Examples Decision Trees and Forests Covtype Data Set Preparing the Data A First Decision Tree Decision Tree Hyperparameters Tuning Decision Trees Categorical Features Revisited Random Decision Forests Making Predictions Where to Go from Here 5. Anomaly Detection in Network Traffic with K-means Clustering Anomaly Detection K-means Clustering Network Intrusion KDD Cup 1999 Data Set A First Take on Clustering Choosing k Visualization in R Feature Normalization Categorical Variables Using Labels with Entropy Clustering in Action Where to Go from Here 6. Understanding Wikipedia with Latent Semantic Analysis The Term-Document Matrix Getting the Data Parsing and Preparing the Data Lemmatization Computing the TF-IDFs Singular Value Decomposition Finding Important Concepts Querying and Scoring with the Low-Dimensional Representation Term-Term Relevance Document-Document Relevance Term-Document Relevance Multiple-Term Queries Where to Go from Here 7. Analyzing Co-occurrence Networks with GraphX The MEDLINE Citation Index: A Network Analysis Getting the Data Parsing XML Documents with Scala's XML Library Analyzing the MeSH Major Topics and Their Co-occurrences Constructing a Co-occurrence Network with GraphX Understanding the Structure of Networks Connected Components Degree Distribution Filtering Out Noisy Edges Processing EdgeTriplets Analyzing the Filtered Graph Small-World Networks Cliques and Clustering Coefficients Computing Average Path Length with Pregel Where to Go from Here 8. 6eospatial and Temporal Data Analysis on the New York City Taxi Trip Data Getting the Data Working with Temporal and Geospatial Data in Spark Temporal Data with JodaTime and NScalaTime Geospatial Data with the Esri Geometry API and Spray Exploring the Esri Geometry API Intro to GeoJSON Preparing the New York City Taxi Trip Data Handling Invalid Records at Scale Geospatial Analysis Sessionization in Spark Building Sessions: Secondary Sorts in Spark Where to Go from Here 9. Estimating Financial Risk through Monte Carlo Simulation Terminology Methods for Calculating VaR Variance-Covariance Historical Simulation Monte Carlo Simulation Our Model Getting the Data Preprocessing Determining the Factor Weights Sampling The Multivariate Normal Distribution Running the Trials Visualizing the Distribution of Returns Evaluating Our Results Where to Go from Here 10. Analyzing Genomics Data and the BDG Project Decoupling Storage from Modeling Ingesting Genomics Data with the ADAM CLI Parquet Format and Columnar Storage Predicting Transcription Factor Binding Sites from ENCODE Data Querying Genotypes from the 1000 Genomes Project Where to Go from Here 11. Analyzing Neuroimaging Data with PySpark and Thunder Overview of PySpark PySpark Internals Overview and Installation of the Thunder Library Loading Data with Thunder Thunder Core Data Types Categorizing Neuron Types with Thunder Where to Go from Here A.Deeper into Spark B.Upcoming MLlib Pipelines API Index
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