LSI may refer to:

Science and technology

Large-scale integration An integrated circuit or monolithic integrated circuit (also referred to as an IC, a chip, or a microchip) is a set of electronic circuits on one small flat piece (or "chip") of semiconductor material, usually silicon. Large numbers of tiny M ...

integrated circuits An integrated circuit or monolithic integrated circuit (also referred to as an IC, a chip, or a microchip) is a set of electronic circuits on one small flat piece (or "chip") of semiconductor material, usually silicon. Large numbers of tiny ...

with tens of thousands of transistors *

Latent semantic indexing Latent semantic analysis (LSA) is a technique in natural language processing, in particular distributional semantics, of analyzing relationships between a set of documents and the terms they contain by producing a set of concepts related to the do ...

, a technique in natural language processing * LSI-11, an early large-scale integration computer processor that implemented the

DEC PDP-11 The PDP-11 is a series of 16-bit minicomputers sold by Digital Equipment Corporation (DEC) from 1970 into the 1990s, one of a set of products in the Programmed Data Processor (PDP) series. In total, around 600,000 PDP-11s of all models were sol ...

instruction set * Langelier saturation index, a measure for water's tendency to form scale * Linear shift-invariant systems, the discrete equivalent of linear time-invariant systems

Organizations

LSI Corporation LSI Logic Corporation, an American company founded in Milpitas, California, was a pioneer in the ASIC and EDA industries. It evolved over time to design and sell semiconductors and software that accelerated storage and networking in data cente ...

, a technology company founded in 1981 *

Lynch Syndrome International Lynch Syndrome International is a not for profit, tax exempt charity helping those with Lynch syndrome. It is recognized by the Internal Revenue Service as a 501(c)(3) not for profit charitable organization and contributions to the organization ...

, non-profit organisation supporting those affected by Lynch Syndrome *

Labour and Socialist International The Labour and Socialist International (LSI; german: Sozialistische Arbeiter-Internationale, label=German, SAI) was an international organization of socialist and labour parties, active between 1923 and 1940. The group was established through a me ...

, a multinational federation of left wing political parties and trade unions active between 1923 and 1940 *

Socialist Movement for Integration The Freedom Party ( sq, Partia e Lirisë, PL), formerly known as the Socialist Movement for Integration (, LSI), is a social democratic political party in Albania. The party was formed on 6 September 2004, when Ilir Meta defected from the Soci ...

(''Lëvizja Socialiste për Integrim''), a political party in Albania *

Lear Siegler Incorporated Lear Siegler Incorporated (LSI) is a diverse American corporation established in 1962. Its products range from car seats and brakes to weapons control systems for military fighter planes. The company's more than $2 billion-a-year annual sales come ...

, a technology company active from 1961 to 2002 *

Lingkaran Survei Indonesia Lingkaran Survei Indonesia (LSI) is an Indonesian survey and political consultancy institution. It was founded in 2005 by a group of public opinion makers, researchers, columnists and survey experts. LSI is active in committing political surv ...

, a survey company in Indonesia

Transportation

Lake Superior and Ishpeming Railroad The Lake Superior and Ishpeming Railroad , is a U.S. railroad offering service from Marquette, Michigan, to nearby locations in Michigan's Upper Peninsula. It began operations in 1896. The LS&I continues to operate as an independent railroad f ...

, a railroad service in Michigan, United States *

Sumburgh Airport Sumburgh Airport is the main airport serving Shetland in Scotland. It is located on the southern tip of the mainland, in the parish of Dunrossness, south of Lerwick. The airport is owned by Highlands and Islands Airports Limited (HIAL) and s ...

(IATA airport code) in Shetland, Scotland

Music

* "

LSI (Love Sex Intelligence) "LSI (Love Sex Intelligence)" is a song by Scottish band the Shamen with vocals by Jhelisa Anderson. Having been remixed by the Beatmasters, it was the first single taken from their fifth album, ''Boss Drum'' (1992). Released in July 1992, it ac ...

", a single by The Shamen *

Long-string instrument The long-string instrument is a musical instrument in which the string is of such a length that the fundamental transverse wave is below what a person can hear as a tone (±20 Hz). If the tension and the length result in sounds with such ...

, a musical instrument

Other uses

* Landing ship, infantry, a type of troopship or post World War II a landing craft *

La Salle Institute La Salle Institute is an independent, private, Catholic college preparatory school run by the Institute of the Brothers of the Christian Schools in Troy, New York, United States serving boys and girls in grades six through twelve. It was establi ...

, a college preparatory school *

Linguistic Survey of India The Linguistic Survey of India (LSI) is a comprehensive survey of the languages of British India, describing 364 languages and dialects. The Survey was first proposed by George Abraham Grierson, a member of the Indian Civil Service and a linguist w ...

, a survey of the languages of British India directed by G.A. Grierson * Logical Sensory Introvert, a socionics type {{disambiguation