Information retrieval ( IR ) in computing and information science is the task of identifying and retrieving information system resources that are relevant to an information need . The information need can be specified in the form of a search query. In the case of document retrieval, queries can be based on full-text or other content-based indexing. Information retrieval is the science of searching for information in a document, searching for documents themselves, and also searching for the metadata that describes data, and for databases of texts, images or sounds.
31-569: La Gaîté Lyrique ( French: [la ɡɛte liʁik] ) is a digital arts and modern music centre opened by the City of Paris in December 2010, located at 3-5 rue Papin in the 3rd arrondissement . The centre is on the site of the former Théâtre de la Gaîté , incorporating the facade, entrance and foyer of the original theatre. The auditorium of the theatre was demolished in 1989 for an amusement park. The refurbishment lasted from 2004 to 2011 under
62-422: A rate of 120 words a minute The idea of using computers to search for relevant pieces of information was popularized in the article As We May Think by Vannevar Bush in 1945. It would appear that Bush was inspired by patents for a 'statistical machine' – filed by Emanuel Goldberg in the 1920s and 1930s – that searched for documents stored on film. The first description of a computer searching for information
93-445: Is an entity that is represented by information in a content collection or database . User queries are matched against the database information. However, as opposed to classical SQL queries of a database, in information retrieval the results returned may or may not match the query, so results are typically ranked. This ranking of results is a key difference of information retrieval searching compared to database searching. Depending on
124-1076: Is located at the back of the building, above the Petite Salle and below the Grande Salle. It has a capacity of 100 and 14 consultation stations. The collections include 1500 books, 200 periodicals, 150 art catalogues, and other material on topics such as digital art, contemporary music, new art technologies, video games, dance, set design, street art, skating, and graffiti, and also includes digitized periodicals, documents, playlists, blog lists, and other items relating to guest artists and programs, as well as video games. There are also facilities for listening. The resource centre also presents workshops, educational courses and training in information retrieval . 48°51′59.5″N 2°21′12″E / 48.866528°N 2.35333°E / 48.866528; 2.35333 3rd arrondissement of Paris The 3rd arrondissement of Paris ( III arrondissement , French pronunciation: [tʁwɑzjɛm aʁɔ̃dismɑ̃] )
155-412: Is more traditional with 130 fixed seats, a projector and control room, and a 5-metre screen at the bottom front of the hall. It is located between a large exposition space on the lower level at the front of the building and the petite salle at the back. There are entrances on the ground and first floors, and it is directly accessible from the rue Papin. The resource centre functions as a modern library. It
186-490: Is one of the 20 arrondissements (districts) of the capital city of France . In spoken French, this arrondissement is colloquially referred to as " le troisième " ( French pronunciation: [lə tʁwɑzjɛm] ) meaning "the third". Its postal code is 75003. It is governed locally together with the 1st , 2nd and 4th arrondissements, with which it forms the 1st sector of Paris, Paris Centre . The arrondissement, sometimes known as Temple and situated on
217-423: Is the process of assessing how well a system meets the information needs of its users. In general, measurement considers a collection of documents to be searched and a search query. Traditional evaluation metrics, designed for Boolean retrieval or top-k retrieval, include precision and recall . All measures assume a ground truth notion of relevance: every document is known to be either relevant or non-relevant to
248-453: The Marais district is included in the 4th arrondissement, which it neighbors on its southern border. The area now occupied by the third arrondissement attained its peak population in the period preceding the re-organization of Paris in 1860. In 1999, the population was 34,248, while the arrondissement hosted a total of 29,723 jobs. ¹ The peak of population actually occurred before 1861, but
279-491: The Carré Silvia-Monfort and the first circus school based themselves here for a time. The theatre became bankrupt and closed. In the early 1980s the dome of the main auditorium was threatening to collapse, and it was reinforced with concrete. During the following years it was largely destroyed and transformed into an amusement park , Planète magique , by Jean Chalopin . The main auditorium, holding 1800, and
310-619: The Pletzl (פלעצל, 'little place' in Yiddish ), which dates from the 13th century, begins in the eastern part of the 3rd arrondissement and extends into the 4th. It is home to the Musée d'Art et d'Histoire du Judaïsme ('Museum of Jewish Art and History') and the Agoudas Hakehilos synagogue designed by the architect Hector Guimard . Although fashionable boutiques now take up many of
341-580: The arrondissement was created in 1860, so we do not have figures before 1861. An immigrant is a person born in a foreign country not having French citizenship at birth. An immigrant may have acquired French citizenship since moving to France, but is still considered an immigrant in French statistics. On the other hand, persons born in France with foreign citizenship (the children of immigrants) are not listed as immigrants. There are six public high-schools in
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#1732787555922372-510: The application the data objects may be, for example, text documents, images, audio, mind maps or videos. Often the documents themselves are not kept or stored directly in the IR system, but are instead represented in the system by document surrogates or metadata . Most IR systems compute a numeric score on how well each object in the database matches the query, and rank the objects according to this value. The top ranking objects are then shown to
403-559: The right bank of the River Seine , is the smallest in area after the 2nd. It contains the quieter northern part of the medieval district of Le Marais , while the more lively southern part, notably including the gay district of Paris, is located within the 4th arrondissement. The oldest surviving private house in Paris, built in 1407, is to be found in the 3rd arrondissement at 52 rue de Montmorency . The ancient Jewish quarter,
434-600: The 3rd arrondissement ranks second smallest in the city. It is situated in what is considered Central Paris on the right bank ( rive droite ) of the city. Its interior is mostly devoid of the large Haussmannian boulevards included in many other arrondissements throughout the city. The arrondissement includes a range of neighborhoods or quartiers most of which date back to the Middle Ages. Most residents and locals refer to this area as Temple , Arts et Métiers or more generally, le Marais ; however most of
465-408: The 3rd arrondissement, and no private high-schools. The Conservatoire national des arts et métiers (CNAM) has its main Paris campus in the area around the métro station to which it gives its name. A grande école , CNAM provides university-level technical and professional qualifications to a student body of over 25,000. There are 9 museums alone in the 3rd arrondissement as listed by
496-824: The Cranfield collection (several thousand documents). Large-scale retrieval systems, such as the Lockheed Dialog system, came into use early in the 1970s. In 1992, the US Department of Defense along with the National Institute of Standards and Technology (NIST), cosponsored the Text Retrieval Conference (TREC) as part of the TIPSTER text program. The aim of this was to look into the information retrieval community by supplying
527-465: The Paris office of tourism, however there are also many other smaller museums, as listed below. There are 6 smaller gardens throughout the 3rd arrondissement. Information retrieval Automated information retrieval systems are used to reduce what has been called information overload . An IR system is a software system that provides access to books, journals and other documents; it also stores and manages those documents. Web search engines are
558-463: The architect Manuelle Gautrand . The General/Artistic Director was Jérôme Delormas. The venue is directed by Marc Dondey since 2016. Following Haussmann 's modernization of Paris and the destruction of the theatres on the boulevard du Temple , the last of a succession of playhouses called the Théâtre de la Gaîté was built in the rue Papin. It opened on 3 September 1862. The building was designed by
589-644: The architects Jacques-Ignace Hittorff and Alphonse Cusin , with an 1800-seat auditorium decorated by Félix Jobbé-Duval . Concentrating on operettas, it also became known as the Gaîté-Lyrique and was at its height during the Second French Empire . Jacques Offenbach was its director from 1873 to 1874, After the Second World War , the theatre enjoyed success under its directors Henri Montjoye and his wife Germaine Roger. In 1974,
620-438: The building is surrounded by over 100 residences, acoustic isolation was a high priority. It was designed using the " box within a box " principle. The performance spaces, being the most sonically intensive, were placed in the center and are surrounded by three successive layers of more external spaces. Utility spaces and vertical passages are located between the two outer layers. There is only one "ceremonial" staircase connecting
651-425: The documents are typically transformed into a suitable representation. Each retrieval strategy incorporates a specific model for its document representation purposes. The picture on the right illustrates the relationship of some common models. In the picture, the models are categorized according to two dimensions: the mathematical basis and the properties of the model. The evaluation of an information retrieval system'
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#1732787555922682-399: The four walls, and a large variety audience and stage setups can be accommodated. There are also four large screens the size of each wall which allows for the possibility of total audience immersion in a projected space. The exterior is covered with mirrored panels, rendering it instantly recognisable and capable of complementing installed artwork. The Small Hall (Petite Salle), located on
713-446: The ground floor and the first floor. Otherwise each floor is as large as possible to provide the greatest flexibility in the use of the space. The Large Hall (Grande Salle) is above the main floor at the back of the building, has a capacity of about 750 standing places or 308 when seated. It includes telescopic tiers ( bleachers ) for seating which can be folded away sideways. Projection screens can be mounted at various levels on any of
744-581: The infrastructure that was needed for evaluation of text retrieval methodologies on a very large text collection. This catalyzed research on methods that scale to huge corpora. The introduction of web search engines has boosted the need for very large scale retrieval systems even further. Areas where information retrieval techniques are employed include (the entries are in alphabetical order within each category): Methods/Techniques in which information retrieval techniques are employed include: In order to effectively retrieve relevant documents by IR strategies,
775-426: The lowest level at the back of the building, can accommodate 70 seated and 150 standing places and can be used in conjunction with the exhibition areas or as a separate audio/visual venue. The walls can be taken apart, and the floor panels can be mounted at different levels to create various platforms and tiers. The colour scheme is in shades of gray so as not to conflict with the artists' installations. The Auditorium
806-422: The most visible IR applications. An information retrieval process begins when a user enters a query into the system. Queries are formal statements of information needs, for example search strings in web search engines. In information retrieval, a query does not uniquely identify a single object in the collection. Instead, several objects may match the query, perhaps with different degrees of relevance . An object
837-474: The orchestra pit large enough for 60 musicians were among the parts of the building that were lost. The amusement park was only open for a few weeks. La Gaîté-Lyrique is 35 metres wide, 60 metres in length, and 26 metres tall with a total of 9,500 square metres of usable floor space. The building has five levels accessible to the public and 2 private levels at the top, which include shops for artists. There are 5 elevators and 3 service elevators. Other areas include
868-496: The reception, the historical foyer (above the reception), three performance venues, exhibition spaces, a resource centre, a video gaming area, artist spaces, and a boutique . Most of these areas are designed to be adaptable to new uses and include movable floor and wall elements. Small movable and recombinable dodecahedral units, called "éclaireuses", are available for use as, for example, dressing rooms, offices, technical annexes, installation spaces, or even parts of stage sets. Since
899-496: The storefronts, there are still landmark stores selling traditional Jewish foods. A small but slowly expanding Chinatown , inhabited by immigrants from Wenzhou , centers on the rue au Maire, near the Conservatoire national des arts et métiers and the Musée des Arts et Métiers , partly housed in the medieval priory of Saint-Martin-des-Champs . With a land area of 1.2 km (0.452 square miles, or 289 acres),
930-482: The user. The process may then be iterated if the user wishes to refine the query. there is ... a machine called the Univac ... whereby letters and figures are coded as a pattern of magnetic spots on a long steel tape. By this means the text of a document, preceded by its subject code symbol, can be recorded ... the machine ... automatically selects and types out those references which have been coded in any desired way at
961-494: Was described by Holmstrom in 1948, detailing an early mention of the Univac computer. Automated information retrieval systems were introduced in the 1950s: one even featured in the 1957 romantic comedy, Desk Set . In the 1960s, the first large information retrieval research group was formed by Gerard Salton at Cornell. By the 1970s several different retrieval techniques had been shown to perform well on small text corpora such as