Results 51 to 60 of about 291,521 (282)
, 2012 The data structure at the core of nowadays large-scale search engines, social networks and storage architectures is the inverted index, which can be regarded as being a collection of sorted integer sequences called inverted lists. Because of the many documents indexed by search engines and stringent performance requirements dictated by the heavy load ...
Pibiri GE, Venturini R
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Improved Grammar-Based Compressed Indexes [PDF]
, 2012 We introduce the first grammar-compressed representation of a sequence that supports searches in time that depends only logarithmically on the size of the grammar. Given a text $T[1..u]$ that is represented by a (context-free) grammar of $n$ (terminal and nonterminal) symbols and size $N$ (measured as the sum of the lengths of the right hands of the ...
Claude, Francisco, Navarro, Gonzalo
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String Indexing for Patterns with Wildcards [PDF]
, 2012 We consider the problem of indexing a string $t$ of length $n$ to report the occurrences of a query pattern $p$ containing $m$ characters and $j$ wildcards. Let $occ$ be the number of occurrences of $p$ in $t$, and $\sigma$ the size of the alphabet.
A. Tam +18 more
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IEEE Photonics Journal, 2021 The problem of long-distance imaging through time-varying scattering media, such as the atmosphere, is encountered in many science fields. Recent studies have demonstrated that random atmospheric variability can be considered a spatial light modulator in
Xuelin Lei +6 more
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Compressed text indexing with wildcards
Journal of Discrete Algorithms, 2011 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hon, Wing-Kai +4 more
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Evaluation of lateritic soils of Mbé for use as compressed earth bricks (CEB)
Heliyon, 2022 This work was carried out on the lateritic soils of Mbé in the Adamawa region of Cameroon. For this study, twenty (20) soil samples were taken from four (04) sites (Kabaa, Ndom, Mbé Norwegian camp, and Nyéssé).
Japhet Taypondou Darman +5 more
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Relativistic Fermi acceleration with shock compressed turbulence [PDF]
, 2005 This paper presents numerical simulations of test particle Fermi acceleration at relativistic shocks of Lorentz factor Gamma_sh = 2-60, using a realistic downstream magnetic structure obtained from the shock jump conditions.
Lemoine, Martin, Revenu, Benoit
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Image Encryption Algorithm Based on Novel Chaotic System and Binary Block CompressedSensing [PDF]
Jisuanji kexueAn image encryption scheme based on novel integer chaotic system and block compressed sensing(BCS) is proposed for embedded devices.Firstly,an integer chaotic system is designed by perturbing one-dimensional variable parameters.Then,in the compressed ...
FAN Haiju, YUE Shuang, DOU Yuqiang, LI Ming, ZHANG Mingzhu
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Gamma-ray Emission from Crushed Clouds in Supernova Remnants
, 2010 It is shown that the radio and gamma-ray emission observed from newly-found "GeV-bright" supernova remnants (SNRs) can be explained by a model, in which a shocked cloud and shock-accelerated cosmic rays (CRs) frozen in it are simultaneously compressed by
Abdo +15 more
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Energies, 2017 Several studies have aimed to convert diesel engines to dual- or tri-fuel engines to improve their fuel economy and reduce the emissions from diesel engine, however, most of these studies do not consider enhancing the homogeneity of fuel mixtures inside ...
Hussein A. Mahmood +3 more
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