Data Smart John Foreman Pdf Download
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However, this is a minor point and does nothing to limit the appeal and value of this book. If you want to become better informed or even get hands on with customer insight, this book will undoubtedly help you to live up to its title and become data smart.
Indeed, we live in a world where the academic society has experienced a cultural shift from claiming 'my-own data' to actively sharing data and publication [5]. Hence, I want to add another book on data science, entitled, Data Smart: Using Data Science to Transform Information into Insight. As the subtitle itself indicates, this book places great emphasis on data science. This resource is not a theory- and code-based heavy reading; rather, it can help readers utilize data as critical insights for decision making. Whether you see yourself as book smart or street smart, this book will help you become data smart.
Data Science gets thrown around in the press like it's magic. Major retailers are predicting everything from when their customers are pregnant to when they want a new pair of Chuck Taylors. It's a brave new world where seemingly meaningless data can be transformed into valuable insight to drive smart business decisions.
Data Science gets thrown around in the press like it's magic. Major retailers are predicting everything from when their customers are pregnant to when they want a new pair of Chuck Taylors. It's a brave new world where seemingly meaningless data can be transformed into valuable insight to drive smart business decisions. But how does one exactly do data science Do you have to hire one of these priests of the dark arts, the data scientist, to extract this gold from your data Nope. Data science is little more than using straight-forward steps to process raw data into actionable insight. And in Data Smart, author and data scientist John Foreman will show you how that's done within the familiar environment of a spreadsheet. Why a spreadsheet It's comfortable! You get to look at the data every step of the way, building confidence as you learn the tricks of the trade. Plus, spreadsheets are a vendor-neutral place to learn data science without the hype. But don't let the Excel sheets fool you. This is a book for those serious about learning the analytic techniques, the math and the magic, behind big data. Each chapter will cover a different technique in a spreadsheet so you can follow along: Mathematical optimization, including non-linear programming and genetic algorithms Clustering via k-means, spherical k-means, and graph modularity Data mining in graphs, such as outlier detection Supervised AI through logistic regression, ensemble models, and bag-of-words models Forecasting, seasonal adjustments, and prediction intervals through monte carlo simulation Moving from spreadsheets into the R programming language You get your hands dirty as you work alongside John through each technique. But never fear, the topics are readily applicable and the author laces humor throughout. You'll even learn what a dead squirrel has to do with optimization modeling, which you no doubt are dying to know.
Data Science gets thrown around in the press like it's magic. Major retailers are predicting everything from when their customers are pregnant to when they want a new pair of Chuck Taylors. It's a brave new world where seemingly meaningless data can be transformed into valuable insight to drive smart business decisions.
Per default foreman-installer will install a PostgreSQL database server onto the Foreman host and create its database. An external database server with an already created database can be used with the following arguments:
Fill in the OAuth consumer key and secret values from your Foreman instance, retrieve them from your Foreman server, using: sudo foreman-rake config grep oauth_consumer, and set the Foreman URLs appropriately. These allow the smart proxy to register automatically with the Foreman instance, or disable with --foreman-proxy-register-in-foreman=false.
This boolean option configures whether Foreman insists on using only https/ssl encrypted communication channels in the web interface. This does not configure the channels used to contact the smart-proxies. Note that certain operations will still accept a http connection even if this is set, for example, the downloading of a finish script.
When you upgrade Foreman using foreman-installer, the database may migrate its data model to the new version. If this is true, the next run of the installer will run these migrations. If it is false, the database will remain untouched.
When you upgrade Foreman using foreman-installer, the new version may contain some seed data such as operating systems, provisioning templates, roles and more. It will also update any previous seeded data. If this is true, the next run of the installer will seed this data. If it is false, the database will not get this seeded data.
You may see ERRORS such as /Stage[main]/Foreman_proxy::Register/Foreman_smartproxy[foreman-hostname.domain]: Could not evaluate: Connection refused - connect(2) due to httpd / apache2 service being stopped. These can be safely ignored.
Smart class parameters are based on the smart matchers technology, and have a number of advanced features such as validation and multiple data types. More about these can be found in the Smart Matchers section.
A smart proxy is an autonomous web-based foreman component that is placed on a host performing a specific function in the host commissioning phase.It receives requests from Foreman to perform operations that are requiredduring the commissioning process and executes them on its behalf. More detailscan be found on the Foreman Architecture page.
Ensure the foreman_url in /etc/foreman-proxy/settings.yaml points to your Foreman instance, and that your smart proxy is listening on HTTP by uncommenting http_port. Nowconfigure /etc/foreman-proxy/settings.d/templates.yml:
Provisioning Windows is a two step process. The first step, creating Installation Media, is not discussed here.It includes getting the WIM files, updates and drivers and boot files ready.The necessary boot files are are later downloaded by automatically by the smart proxy.
Compute resource passwords and secrets are stored on the Foreman database using a secret - the encryption key - and ciphered using AES-256-CBC.The encryption key can usually be found in /etc/foreman/encryption_key.rb, which is symlinked to /usr/share/foreman/config/initializers/encryption_key.rb. The value of the ENCRYPTION_KEY variable must be at least 32 bytes long.
After you make sure you have a valid encryption key, you can encrypt your Compute Resource secrets in the database by running foreman-rake db:compute_resources:encrypt.To unencrypt them, run the task foreman-rake db:compute_resources:decrypt.
Run foreman-rake db:import_dump file=/your/db/dump/location. This will load yourdump into the current database for your environment. It will print a messageto notify you when it has finished importing the dump.
All Foreman instances in a cluster/group must point to the same database. This can be done during the initial installation (through flags or altering foreman_installer_answers.yaml) or by directly altering /etc/foreman/database.yaml and pointing the correct environment (usually production) to your Foreman DB, then restarting Foreman.
In order to troubleshoot and get relevant data use foreman-debug which collects information about your OS, Foreman and related components.If you installed from packages, the command is available to root: 153554b96e
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