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  2. AutoNumber - Wikipedia

    en.wikipedia.org/wiki/AutoNumber

    AutoNumber is a type of data used in Microsoft Access tables to generate an automatically incremented numeric counter. It may be used to create an identity column which uniquely identifies each record of a table. Only one AutoNumber is allowed in each table. The data type was called Counter in Access 2.0. [1]

  3. Zero-based numbering - Wikipedia

    en.wikipedia.org/wiki/Zero-based_numbering

    Zero-based numbering is a way of numbering in which the initial element of a sequence is assigned the index 0, rather than the index 1 as is typical in everyday non-mathematical or non-programming circumstances.

  4. Leading zero - Wikipedia

    en.wikipedia.org/wiki/Leading_zero

    Leading zeros can have its meaning for various reasons: in data where, for any reason, a standard data length is required or expected, e.g. in identifiers like James Bond as 007. in cases where the digit does not represent a value but a distinguishing character, for example in telephone numbers

  5. Labeled data - Wikipedia

    en.wikipedia.org/wiki/Labeled_data

    Labels can be obtained by asking humans to make judgments about a given piece of unlabeled data. [1] Labeled data is significantly more expensive to obtain than the raw unlabeled data. The quality of labeled data directly influences the performance of supervised machine learning models in operation, as these models learn from the provided ...

  6. pandas (software) - Wikipedia

    en.wikipedia.org/wiki/Pandas_(software)

    Pandas (styled as pandas) is a software library written for the Python programming language for data manipulation and analysis.In particular, it offers data structures and operations for manipulating numerical tables and time series.

  7. Label (computer science) - Wikipedia

    en.wikipedia.org/wiki/Label_(computer_science)

    In most languages, labels take the form of an identifier, often followed by a punctuation character (e.g., a colon). In many high-level languages, the purpose of a label is to act as the destination of a GOTO statement. [1] [2] In assembly language, labels can be used anywhere an address can (for example, as the operand of a JMP or MOV ...

  8. Zero-inflated model - Wikipedia

    en.wikipedia.org/wiki/Zero-inflated_model

    As the examples above show, zero-inflated data can arise as a mixture of two distributions. The first distribution generates zeros. The first distribution generates zeros. The second distribution, which may be a Poisson distribution , a negative binomial distribution or other count distribution, generates counts, some of which may be zeros.

  9. Data access layer - Wikipedia

    en.wikipedia.org/wiki/Data_access_layer

    If the data access layer supports multiple database types, the application becomes able to use whatever databases the DAL can talk to. In either circumstance, having a data access layer provides a centralized location for all calls into the database, and thus makes it easier to port the application to other database systems (assuming that 100% ...