Index

An index is an indirect shortcut derived from and pointing into a greater volume of values, data, information or knowledge. Index may refer to:

Business

Publishing

Database index

A database index is a data structure that improves the speed of data retrieval operations on a database table at the cost of additional writes and storage space to maintain the index data structure. Indexes are used to quickly locate data without having to search every row in a database table every time a database table is accessed. Indexes can be created using one or more columns of a database table, providing the basis for both rapid random lookups and efficient access of ordered records.

An index is a copy of select columns of data from a table that can be searched very efficiently that also includes a low-level disk block address or direct link to the complete row of data it was copied from. Some databases extend the power of indexing by letting developers create indices on functions or expressions. For example, an index could be created on upper(last_name), which would only store the upper case versions of the last_name field in the index. Another option sometimes supported is the use of partial indices, where index entries are created only for those records that satisfy some conditional expression. A further aspect of flexibility is to permit indexing on user-defined functions, as well as expressions formed from an assortment of built-in functions.

Index (statistics)

In statistics and research design, an index is a composite statistic – a measure of changes in a representative group of individual data points, or in other words, a compound measure that aggregates multiple indicators. Indexes summarize and rank specific observations.

Much data in the field of social sciences is represented in various indices such as Gender Gap Index, Human Development Index or the Dow Jones Industrial Average.

Item in indexes are usually weighted equally, unless there are some reasons against it (for example, if two items reflect essentially the same aspect of a variable, they could have a weight of 0.5 each).

Constructing the items involves four steps. First, items should be selected based on their face validity, unidimensionality, the degree of specificity in which a dimension is to be measured, and their amount of variance. Items should be empirically related to one another, which leads to the second step of examining their multivariate relationships. Third, indexes scores are designed, which involves determining their score ranges and weights for the items. Finally, indexes should be validateds, which involves testing whether they can predict indicators related to the measured variable not used in their construction.

Legend (game publisher)

Legend was a video game publishing house also known as Microl/Legend, and earlier as simply Microl. Legend's chairman and founder was John Peel.

Partial list of published games

Legend (Lynyrd Skynyrd album)

Legend was a posthumous compilation album of unreleased material by American Southern rock band Lynyrd Skynyrd, which contained previously unreleased demos from the albums before the 1977 plane crash. However, the vast majority of tracks on Legend are now available on other albums. The album was certified Gold on 7/27/2001 by the RIAA.

Track listing

Personnel

Dark Horse Comics

Dark Horse Comics is an American comic book and manga publisher. It was founded in 1986 by Mike Richardson in Milwaukie, Oregon, with the concept of establishing an ideal atmosphere for creative professionals.

Richardson started out by opening his first comic book store, Pegasus Books, in Bend, Oregon, in 1980. From there he was able to use the funds from his retail operation to start his own publishing company. Dark Horse Presents and Boris the Bear were the two initial titles in 1986 and within one year of its first publication, Dark Horse Comics added nine new titles to its roster, including The American, The Mark, Trekker, and Black Cross. Frank Miller's Sin City is one of the most famous works associated with Dark Horse, and it has become something of a token comic to the publishing house.

In 2011, Dark Horse Presents relaunched including the return of Paul Chadwick's Concrete and Steve Niles' Criminal Macabre, as well as new talent including Sanford Greene, Carla Speed McNeil, Nate Crosby and others.