Advanced Analytics with Spark: Patterns for Learning from by Sean Owen, Sandy Ryza, Uri Laserson, Josh Wills

By Sean Owen, Sandy Ryza, Uri Laserson, Josh Wills

During this useful e-book, 4 Cloudera facts scientists current a suite of self-contained styles for acting large-scale information research with Spark. The authors carry Spark, statistical equipment, and real-world information units jointly to educate you ways to procedure analytics difficulties by way of example.

You'll commence with an creation to Spark and its atmosphere, after which dive into styles that observe universal techniques—classification, collaborative filtering, and anomaly detection between others—to fields comparable to genomics, defense, and finance. in case you have an entry-level knowing of computing device studying and facts, and also you software in Java, Python, or Scala, you'll locate those styles invaluable for engaged on your personal facts applications.

Patterns include:
- Recommending track and the Audioscrobbler information set
- Predicting woodland conceal with determination trees
- Anomaly detection in community site visitors with K-means clustering
- knowing Wikipedia with Latent Semantic Analysis
- interpreting co-occurrence networks with GraphX
- Geospatial and temporal info research at the big apple urban Taxi journeys data
- Estimating monetary possibility via Monte Carlo simulation
- reading genomics info and the BDG project
- studying neuroimaging information with PySpark and Thunder

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NET if the current culture of the current thread is the culture you want to use. Globalization namespace. This namespace would be included in order to make the code in the solution run. S. English. The current thread in the application may have a CultureInfo for “en-US” and, by default, the sort order for OrderBy will use the current culture sort settings. To specify that this list should sort according to Danish rules, a bit of work is necessary in the form of a custom comparer: CultureStringComparer comparer = new CultureStringComparer(danish,CompareOptions.

S. English list: Ordered by specific culture : da-DK Apple Bar Forsooth Jello Orange Zanzibar Æble Ordered by specific culture : en-US Æble Apple Bar Forsooth Jello Orange Zanzibar See Also The “OrderBy,” “CultureInfo,” and “IComparer” topics in the MSDN documentation. 5 Adding Functional Extensions for Use with LINQ Problem There are operations you perform on collections frequently that currently reside in utility classes. You would like to be able to have these operations be used on collections in a more seamless manner than having to pass the reference to the collection to the utility class.

WriteLine(employee); } See Also The “Standard Query Operators,” “Distinct method,” “Union method,” “Intersect method,” and “Except method” topics in the MSDN documentation. 3 Reuse Parameterized Queries with LINQ to SQL Problem You need to execute the same parameterized query multiple times with different parameter values, but you want to avoid the overhead of parsing the query expression tree to build the parameterized SQL each time the query executes. NorthwindConnectionString); 8 | Chapter 1: Language Integrated Query (LINQ) The first time the query executes is when it actually compiles (where GetEmployees is called the first time in the foreach loop).

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