Sounds of the Universe

Sounds of the Universe is the twelfth studio album by English electronic music band Depeche Mode, released on 17 April 2009 by Mute Records. It was supported by the 2009–10 concert tour Tour of the Universe. Three singles were released from the album; "Wrong", "Peace", and a double A-side of "Fragile Tension" and "Hole to Feed". "Perfect" was also released in the US as a promotional single.

As with the previous album, Playing the Angel, Dave Gahan has once again written three songs with Christian Eigner and Andrew Phillpott: "Hole to Feed", "Come Back" and "Miles Away/The Truth Is". "Spacewalker" and the bonus track "Esque" are instrumentals. Martin Gore shares lead singing duties with Gahan on "In Chains", "Peace" and "Little Soul", he sings the lead of "Jezebel" and the B-side "The Sun and the Moon and the Stars" on the second disc of the deluxe box set. The B-side "Oh Well" is the first track ever to be co-written by Gore and Gahan. The final track "Corrupt" is followed by a short hidden instrumental version of the song "Wrong".

Revival (Selena Gomez album)

Revival is the second solo studio album by American singer Selena Gomez. It was released on October 9, 2015, by Interscope and Polydor Records. Gomez began planning the project in 2014, at which time she left her previous label Hollywood Records and subsequently joined Interscope and Polydor, and continued work into 2015. As executive producers, Gomez, Danny D, and Tim Blacksmith collaborated with producers including Hit-Boy, Rock Mafia, and Stargate to achieve her desired new sound. Their efforts resulted in a primarily pop record, with elements of dance-pop, electropop, and R&B connected by a tropical beach sound and lyrics that discuss love and confidence.

The record was inspired by the work of a range of artists, especially Christina Aguilera's sophomore studio album Stripped (2002), and Gomez's trip to Mexico, where she defined the album's sound. Working with a handful of songwriters, Gomez co-wrote eleven out of the sixteen tracks that made the album's tracklists. The album reflects her journey since 2013, including the media scrutiny on her personal life, of which her highly public relationships and personal issues.

Perfect (disambiguation)

Perfection is a philosophical concept.

Perfect may also refer to:

Music

Artists

Songs

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.