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  2. Word2vec - Wikipedia

    en.wikipedia.org/wiki/Word2vec

    Word2vec is a group of related models that are used to produce word embeddings.These models are shallow, two-layer neural networks that are trained to reconstruct linguistic contexts of words.

  3. Index locking - Wikipedia

    en.wikipedia.org/wiki/Index_locking

    Index data are system data distinct from user data, and consist primarily of pointers. Changes in a database (by insert, delete, or modify operations), may require indexes to be updated to maintain accurate user data accesses. [1] Index locking is a technique used to maintain index integrity. A portion of an index is locked during a database ...

  4. Block Range Index - Wikipedia

    en.wikipedia.org/wiki/Block_Range_Index

    A Block Range Index or BRIN is a database indexing technique. They are intended to improve performance with extremely large [ i ] tables. BRIN indexes provide similar benefits to horizontal partitioning or sharding but without needing to explicitly declare partitions.

  5. Exponential backoff - Wikipedia

    en.wikipedia.org/wiki/Exponential_backoff

    The hosts must choose a random value within an acceptable range to ensure that this situation doesn't happen. An exponential backoff algorithm is therefore used. The value 51.2 μs is used as an example here because it is the slot time for a 10 Mbit/s Ethernet line.

  6. Davies–Bouldin index - Wikipedia

    en.wikipedia.org/wiki/Davies–Bouldin_index

    The Davies–Bouldin index (DBI), introduced by David L. Davies and Donald W. Bouldin in 1979, is a metric for evaluating clustering algorithms. [1] This is an internal evaluation scheme, where the validation of how well the clustering has been done is made using quantities and features inherent to the dataset.

  7. Rand index - Wikipedia

    en.wikipedia.org/wiki/Rand_index

    The Rand index [1] or Rand measure (named after William M. Rand) in statistics, and in particular in data clustering, is a measure of the similarity between two data clusterings. A form of the Rand index may be defined that is adjusted for the chance grouping of elements, this is the adjusted Rand index .

  8. Range expansion index - Wikipedia

    en.wikipedia.org/wiki/Range_expansion_index

    The range expansion index (REI) is a technical indicator used in the technical analysis of financial markets.It is intended to chart the relative strength or weakness of a trading vehicle based on the comparison of the recent price changes and the overall price changes for the period.

  9. List of Black Mirror episodes - Wikipedia

    en.wikipedia.org/wiki/List_of_Black_Mirror_episodes

    Charlie Brooker, creator of Black Mirror Black Mirror is a British science fiction anthology series created by Charlie Brooker. The programme was inspired by The Twilight Zone and explores technology and its side-effects. It began on the British television network Channel 4 before moving to the American streaming platform Netflix and has run for six series between 2011 and 2023. There are 27 ...