Search results for "Library"

showing 10 items of 3069 documents

Through a Glass, Darkly

2013

Political actors increasingly use the microblogging service, Twitter, for the organization, coordination, and documentation of collective action. These interactions with Twitter leave digital artifacts that can be analyzed. In this article, we look at Twitter messages commenting on one of the most contentious protests in Germany’s recent history, the protests against the infrastructure project Stuttgart 21. We analyze all messages containing the hashtag #s21 that were posted between May 25, 2010, and November 14, 2010, by the 80,000 most followed Twitter users in Germany. We do this to answer three questions: First, what distinguishes events that resulted in high activity on Twitter from ev…

Service (systems architecture)Digital artifactMicrobloggingGeneral Social SciencesAdvertisingLibrary and Information SciencesCollective actionComputer Science ApplicationsPoliticsDocumentationComputational sociologySocial mediaSociologyLawSocial Science Computer Review
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Discovering web services in social web service repositories using deep variational autoencoders

2020

Abstract Web Service registries have progressively evolved to social networks-like software repositories. Users cooperate to produce an ever-growing, rich source of Web APIs upon which new value-added Web applications can be built. Such users often interact in order to follow, comment on, consume and compose services published by other users. In this context, Web Service discovery is a core functionality of modern registries as needed Web Services must be discovered before being consumed or composed. Many efforts to provide effective keyword-based service discovery mechanisms are based on Information Retrieval techniques as services are described using structured or unstructured textdocumen…

Service (systems architecture)Information retrievalbusiness.industryComputer scienceService discovery02 engineering and technologyLibrary and Information SciencesManagement Science and Operations Researchcomputer.software_genreSocial webWeb APIAutoencoderComputer Science Applications020204 information systemsVDP::Technology: 500::Information and communication technology: 550::Telecommunication: 5520202 electrical engineering electronic engineering information engineeringMedia TechnologyWeb application020201 artificial intelligence & image processingWeb servicebusinessFeature learningcomputerInformation Systems
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Interactive Gradually Generating Relevance Query Refinement Under the Human-Mediated Scenario in Multilingual Settings

2016

As opposed to query modelling, relevance generating interactive query refinement (QR) is a technique aimed at exploiting syntax variations of gradually extended, being removed or replaced with some other keywords query, which depending on the factors like e.g. the information resource, the database structure, or the keyword alignment, facilitates significantly the searching process. Therefore our motivation is to explore the dynamism of the precision trend depended upon the factors analyzed. For a couple of language pairs which constitute multilingual settings, we develop a user-centred framework that imposes distributed search optimization. Our data set contains variety of query types subm…

Set (abstract data type)Information retrievalmultilingual information retrievaldistributed searchSyntax (programming languages)Computer sciencequery refinementSearch engine indexingInformation needsRelevance (information retrieval)DynamismConstruct (python library)Variety (cybernetics)
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A nicely behaved singular integral on a purely unrectifiable set

2001

We construct an example of a purely 1-unrectifiable AD-regular set E in the plane such that the limit

Set (abstract data type)Plane (geometry)Applied MathematicsGeneral MathematicsMathematical analysisMathematics::Metric GeometryLimit (mathematics)Construct (python library)Singular integralMathematicsProceedings of the American Mathematical Society
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Left-to-right tree pattern matching

1991

We propose a new technique to construct left-to-right matching automata for trees. Our method is based on the novel concept of prefix unifcation which is used to compute a certain closure of the pattern set. From the closure a kind of deterministic matching automaton can be derived immediately. We also point out how to perform the construction incrementally which makes our approach suitable for applications in which pattern sets change dynamically, such as in the Knuth-Bendix completion algorithm.

Set (abstract data type)PrefixFunctional programmingTheoryofComputation_MATHEMATICALLOGICANDFORMALLANGUAGESMatching (graph theory)Computer scienceClosure (topology)Point (geometry)Construct (python library)AlgorithmAutomaton
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Beppe Chia and Chialab, 彼普·嘉 / Beppe Chia and Chialab, vision of graphics

2010

当Beppe Chia把研究建立在八十年代中期附近 的时候,他也许没想到,自己研究成果的规模和 重要性会随着时间的推移而被放大,但或许他那 时已经有所察觉了,因为他选择了Chialab这条 标签,他把自己对图像的观点与对合作的理解结 合在一起,在实验室、锻造车间以及分享观点和 主意的地方,以各种方式加以考虑。在古老的博 洛尼亚镇中心附近有一所超出他预想的地板房, 透过一扇玻璃舷窗,这所房子的门总是向外面敞 开着,你会发现自己完全陷入这些环境中,把自 己置身于不同的高度,完全不需要出入口。他们 聚集在一起,共同投身于书籍、研究、设计、讨 论、摄影、烹饪和食物的消耗。这些相同的场所 仅仅是一个人们可以围坐在大桌子周围的地方或 是一个小型的内部花园。我正在描绘一个地方, 原先是一间老厂房,能在这里,在Chialab这个视 觉交流的地方工作,产生出大量的想法,并可以 When Beppe Chia founds his study around the half of the eighties, he does not imagine perhaps the dimensions and the importance which it will assume as time goes on or maybe he knows, because the label that he chooses, Chialab, puts together his own views of graphics and what he thinks of teamwork, which is consi…

Settore ICAR/13 - Disegno IndustrialeChialab Beppe Chia Bologna graphic design book design museum library
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From the-book to the city. Public libraries' urban role in contemporary city

2013

The individualistic tendencies of contemporary society caused by the new forms of capitalism and the dematerialization of information sources have produced a progressive reduction of collective places in our cities. The square (la Piazza) is from immemorial time the heart of the historical city: a place that citizens have chosen for their leisure and encounters, for trade and exchanges. Today, such social gathering places, are progressively disappearing, replaced by centers for business and entertainment to which, in various ways, are increasingly delegated for the management and planning of the inhabitants leisure time. The question becomes an emergency when we realize that everything with…

Settore ICAR/14 - Composizione Architettonica E UrbanaArchitecture Library City Third Place Urbanism
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I Vari componenti d'architettura (1766) di Michele Vella

2013

Michele Vella, sculptor and antiquarian of Agrigento, born in nearby Raffadali, is known through chronicles and accounts of foreign travelers who visited "the city of temples" duringin the last few decades of the eighteenth century. Prior to devote himself to the study of ancient Agrigento and to become a "guide" of famous visitors, such as Goethe, he began to develop a treatise on architecture dedicated in 1766 to the bishop Andrea Lucchesi Palli. The unfinished manuscript titled Vari Componimenti d'Architettura is now located at the Library Lucchesiana of Agrigento.

Settore ICAR/18 - Storia Dell'ArchitetturaTRATTATI ARCHITETTURA XVIII SEC MICHELE VELLA AGRIGENTO BIBLIOTECA LUCCHESIANATREATISES ARCHITECTURE 18TH CENTURY MICHAEL VELLA AGRIGENTO LUCCHESIANA LIBRARY
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An on-line learning method for face association in personal photo collection

2012

Due to the widespread use of cameras, it is very common to collect thousands of personal photos. A proper organization is needed to make the collection usable and to enable an easy photo retrieval. In this paper, we present a method to organize personal photo collections based on ''who'' is in the picture. Our method consists in detecting the faces in the photo sequence and arranging them in groups corresponding to the probable identities. This problem can be conveniently modeled as a multi-target visual tracking where a set of on-line trained classifiers is used to represent the identity models. In contrast to other works where clustering methods are used, our method relies on a probabilis…

Settore ING-INF/05 - Sistemi Di Elaborazione Delle InformazioniInformation retrievalComputer sciencebusiness.industrySemi-supervised learningUSableDigital libraryMachine learningcomputer.software_genreSet (abstract data type)Face descriptor Data association On-line learning Semi-supervised learning Digital librariesFace (geometry)Signal ProcessingIdentity (object-oriented programming)Eye trackingComputer Vision and Pattern RecognitionArtificial intelligencebusinessCluster analysiscomputer
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Does More Context Help? Effects of Context Window and Application Source on Retrieval Performance

2021

We study the effect of contextual information obtained from a user’s digital trace on Web search performance. Contextual information is modeled using Dirichlet–Hawkes processes (DHP) and used in augmenting Web search queries. The context is captured by monitoring all naturally occurring user behavior using continuous 24/7 recordings of the screen and associating the context with the queries issued by the users. We report a field study in which 13 participants installed a screen recording and digital activity monitoring system on their laptops for 14 days, resulting in data on all Web search queries and the associated context data. A query augmentation (QAug) model was built to expand the or…

Settore ING-INF/05 - Sistemi Di Elaborazione Delle InformazioniInformation retrievalContext windowSettore INF/01 - InformaticaComputer science05 social sciencesContext (language use)01 natural sciencesGeneral Business Management and AccountingComputer Science ApplicationsTrace (semiology)010104 statistics & probabilitydigital user behavior contextual information context window query augmentation application source Web searchContextual information0509 other social sciences0101 mathematics050904 information & library sciencesInformation Systems
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