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.

Israelis

Israelis (Hebrew: ישראלים‎ Yiśraʾelim, Arabic: الإسرائيليين‎ al-ʾIsrāʾīliyyin) are citizens or permanent residents of the State of Israel, a multiethnic society that is home to people of different national backgrounds. The largest ethnic groups in Israel are Jews (75%), followed by Arabs (20%) and other minorities (5%). Among the Jewish population, hundreds of thousands of Israeli-born Jews are of mixed ancestry of both Ashkenazi and Mizrahi descent. Over 50% of the Jewish population is of at least a partial Mizrahi descent.

Large-scale aliyah in the late nineteenth and early twentieth centuries from Jewish diaspora communities in Europe and Yemen and more recent large-scale aliyah from North Africa, Western Asia, North America, South America the Former Soviet Union and Ethiopia introduced many new cultural elements and have had profound impact on Israeli culture.

Israelis and people of Israeli descent live all over the world: in the United States, India, Canada, the United Kingdom, throughout Europe, and elsewhere. Almost 10 percent of the general population of Israel, are estimated to be living abroad.

Israeli (disambiguation)

Israeli may refer to:

See also

Israeli (newspaper)

Israeli (Hebrew: ישראלי‎, lit. Israeli) was an Israeli daily Hebrew language newspaper distributed for free in railway stations, bus terminals, and Delek gas stations. Based on the concept of the Metro free daily newspapers, it was geared toward a young, urban, and mobile clientele.

The newspaper, first published in January 2006, was co-owned by Sheldon Adelson and Hirsch Media (owned by Shlomo Ben Tzvi) and published by Israeli News Ltd. Its headquarters were located on Menahem Begin Road in Tel Aviv. Its original budget was planned to be US $35 million over three to four years.

It was long suspected that the paper was losing money, but as the number of pages increased from the originally-planned sixteen to twenty-four, and often even more (up to 40), the publishers insisted that the newspaper's expanding size was a sign of strong demand from advertisers. Israeli aimed to become the second-largest paper in Israel, behind Yediot Aharonot, and claimed to print 200,000 issues each day in two daily editions, morning and evening. Criticism of this claim led the publishers to consider numbering each copy under supervision of an accounting firm.

Blues (Jimi Hendrix album)

Blues is a posthumous compilation album by musician Jimi Hendrix, released April 26, 1994, on MCA Records. The album contains eleven blues songs recorded by Hendrix between 1966 and 1970. Out of these eleven, six were previously unreleased. The tracks include seven of Hendrix's compositions along with covers of famous blues songs such as "Born Under a Bad Sign" and "Mannish Boy". Most of the album's material consists of leftover studio tapes that Hendrix might have never intended to release.

Compiled by MCA and released in 1994, Blues was met with favorable criticism and multiple chart success, selling over 500,000 copies in its first two years of release. On February 6, 2001, Blues was certified platinum in sales by the Recording Industry Association of America. The album was re-released on Experience Hendrix Records in 1998, following the Hendrix family's acquisition of the musician's recordings.

This collection was re-released again in October 2010 as part of the Hendrix family's project to remaster Jimi's discography.