Machine Learning Methods

Supervised learning is the machine learning task of inferring a function from labeled training data.[1] The training data consist of a set of training examples. In supervised learning, each example is a pair consisting of an input object (typically a vector) and a desired output value (also called the supervisory signal). A supervised learning algorithm analyzes the training data and produces an inferred function, which can be used for mapping new examples. An optimal scenario will allow for the algorithm to correctly determine the class labels for unseen instances. This requires the learning algorithm to generalize from the training data to unseen situations in a “reasonable” way

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DNS server updated with wrong IP

After migrated Windows 2003 to Windows 2012 R2, the DNS has a A record with wrong IP of the old server name. Checked DHCP and WINS records, both of them are correctly.

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LVM Common Tasks

  • Initializing disks or disk partitions
    For entire disks:
    $ pvcreate /dev/sda
    

    For partitions:

    $ pvcreate /dev/sda1
    
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