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Littérature scientifique sur le sujet « NLO Computation »

Auteur : Grafiati

Publié le 9 mars 2023

Mis à jour le 10 mars 2023

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Articles de revues sur le sujet "NLO Computation"

Mulyawan, R. G., A. Salam et I. Fachruddin. « Bootstrapping Energy-Energy Correlation in Planar 𝓝 = 4 Supersymmetric Yang-Mills ». Journal of Physics : Conference Series 2377, n^o 1 (1 novembre 2022) : 012049. http://dx.doi.org/10.1088/1742-6596/2377/1/012049.

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The two-point energy flow correlation, alternatively dubbed the energy-energy correlation (EEC), is a class of conformal field theory observable in the maximally supersymmetric Yang-Mills theory (𝓝 = 4) related to the event shapes in scattering experiments. It has been calculated up to the next-to-leading order (NLO) recently, showcasing the simplicity of the correlation function. This paper calculates the EEC using an approach based on its polylogarithmic functions. Using the amplitude bootstrap method, two ansatzes are made for the energy flow operators, namely the polylogarithm ansatz crafted using the Symbols method, and the polynomial ansatz based on the results from the NLO correction. The computation is carried out in the leading order (LO) and NLO order. After the computation is made, physical constraints are discovered and accordingly applied to the ansatz, namely the symmetry and end-point kinematics constraints. The resulting computation retrieved the energy flow correlation calculated previously using the Mellin-Barnes representation. The non-trivial nature of the result implies a simpler way to calculate the energy flow correlation without the conformal field theory-based approach.

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Janjua, Muhammad Ramzan Saeed Ashraf, Zain Hassan Yamani, Saba Jamil, Asif Mahmood, Imran Ahmad, Muhammad Haroon, Mudassir Hussain Tahir, Zhihua Yang et Shilie Pan. « First Principle Study of Electronic and Non-Linear Optical (NLO) Properties of Triphenylamine Dyes : Interactive Design Computation of New NLO Compounds ». Australian Journal of Chemistry 69, n^o 4 (2016) : 467. http://dx.doi.org/10.1071/ch15402.

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In this study, density functional theory and time-dependent density functional theory are used to determine how the size of π-conjugated system influences the absorption spectra and non-linear optical (NLO) properties of dyes. Double and triple bonds, as well the benzene rings, are used in conjugated systems. The results of the theoretical computation show that the absorption spectra are gradually broadened and red-shifted with increases in the conjugation length. Theoretical examination of the NLO properties was performed on the key parameters of polarizability and hyperpolarizability. A notable increase in the non-linear optical response was observed with an increase in the conjugation length of the π-spacer.

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Hu, Ao, Guoyi Yu, Qianjin Wang, Dongxiao Han, Shilun Zhao, Bingqiang Liu, Yu Yu, Yuwen Li, Chao Wang et Xuecheng Zou. « Efficient Hardware Accelerator Design of Non-Linear Optimization Correlative Scan Matching Algorithm in 2D LiDAR SLAM for Mobile Robots ». Sensors 22, n^o 22 (18 novembre 2022) : 8947. http://dx.doi.org/10.3390/s22228947.

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Simultaneous localization and mapping (SLAM) is the major solution for constructing or updating a map of an unknown environment while simultaneously keeping track of a mobile robot’s location. Correlative Scan Matching (CSM) is a scan matching algorithm for obtaining the posterior distribution probability for the robot’s pose in SLAM. This paper combines the non-linear optimization algorithm and CSM algorithm into an NLO-CSM (Non-linear Optimization CSM) algorithm for reducing the computation resources and the amount of computation while ensuring high calculation accuracy, and it presents an efficient hardware accelerator design of the NLO-CSM algorithm for the scan matching in 2D LiDAR SLAM. The proposed NLO-CSM hardware accelerator utilizes pipeline processing and module reusing techniques to achieve low hardware overhead, fast matching, and high energy efficiency. FPGA implementation results show that, at 100 MHz clock, the power consumption of the proposed hardware accelerator is as low as 0.79 W, while it performs a scan match at 8.98 ms and 7.15 mJ per frame. The proposed design outperforms the ARM-A9 dual-core CPU implementation with a 92.74% increase and 90.71% saving in computing speed and energy consumption, respectively. It has also achieved 80.3% LUTs, 84.13% FFs, and 20.83% DSPs saving, as well as an 8.17× increase in frame rate and 96.22% improvement in energy efficiency over a state-of-the-art hardware accelerator design in the literature. ASIC implementation in 65 nm can further reduce the computing time and energy consumption per scan to 5.94 ms and 0.06 mJ, respectively, which shows that the proposed NLO-CSM hardware accelerator design is suitable for resource-limited and energy-constrained mobile and micro robot applications.

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Pittau, R. « Recent news and results in the computation of NLO processes with new techniques ». Fortschritte der Physik 59, n^o 11-12 (30 mai 2011) : 1066–69. http://dx.doi.org/10.1002/prop.201100056.

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KARAKAŞ, ASLI, ZİYA ERDEM KOÇ, MICHAELA FRIDRICHOVÁ, PETR NĚMEC et JAN KROUPA. « THE INVESTIGATION OF SECOND-ORDER NONLINEAR OPTICAL PROPERTIES OF P-NITROPHENYLAZOANILINE : SECOND HARMONIC GENERATION AND AB INITIO COMPUTATIONS ». Journal of Theoretical and Computational Chemistry 11, n^o 01 (février 2012) : 209–21. http://dx.doi.org/10.1142/s0219633612500149.

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p-nitrophenylazoaniline (1) belongs to the family of compounds with conjugated bonds and delocalized π-electrons, structurally similar to the well known push-pull compound Disperse Red 1 (DR1).1 Due to the assembly of the molecule, nonlinear optical (NLO) properties are expectable and can be more or less accurately predicted. To estimate the potential for second-order NLO properties, the electric dipole moment (μ), dispersion-free dipole polarizabilities (α) and first hyperpolarizabilities (β) have been determined by density functional theory (DFT) quantum chemical calculations at B3LYP/ 6-311 + G(d, p) level. According to the computation results, the synthesized compound exhibits non-zero β values and it might have second-order NLO behavior. Title compound has been synthesized and characterized by FT-IR, 1H-NMR and UV-Vis spectroscopies. The maximum one-photon absorption (OPA) wavelengths were estimated to be shorter than 450 nm by quantum mechanical computations using the configuration interaction (CI) method. The same result was achieved by UV-Vis spectra measurements, whereas the compound exhibited good optical transparency to the visible light. Quantitative measurements of second harmonic generation (SHG) at 800 nm and 1064 nm have been performed. The relative efficiency comparable with that of KDP (kalium diphosphate) has been observed with the exciting wavelength of 1064 nm, while the other wavelength led to strong absorption of produced light by the sample. In the following more detailed study on frequency-dependent first hyperpolarizabilities using time-dependent Hartree–Fock (TDHF) method have been computed at the wavelengths used in SHG measurements.

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Balachandran, V., G. Santhi, V. Karpagam et A. Lakshmi. « DFT computation and spectroscopic analysis of N-(p-methoxybenzylidene)aniline, a potentially useful NLO material ». Journal of Molecular Structure 1047 (septembre 2013) : 249–61. http://dx.doi.org/10.1016/j.molstruc.2013.05.021.

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Strickland, Michael. « Non-equilibrium evolution of quarkonium in medium in the open quantum system approach ». EPJ Web of Conferences 274 (2022) : 01003. http://dx.doi.org/10.1051/epjconf/202227401003.

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In this proceedings contribution, I review recent work that aims to provide a more comprehensive and systematic understanding of bottomonium dynamics in the quark-gluon plasma using an open quantum system (OQS) approach that is applied in the framework of the potential non-relativistic QCD (pNRQCD) effective field theory and coupled to realistic hydrodynamical backgrounds that have been tuned to soft hadron observables. I review how the computation of bottomonium suppression can be reduced to solving a Gorini- Kossakowski-Sudarshan-Lindblad (GKSL) equation for the evolution of the bb̅ reduced density matrix, which includes both singlet and octet states plus medium-induced transitions between them at next-to-leading order (NLO) in the binding energy over temperature. Finally, I present comparisons of phenomenological predictions of the NLO OQS+pNRQCD approach and experimental data for bottomonium suppression and elliptic flow in LHC 5.02 TeV Pb-Pb collisions obtained using both smooth and fluctuating hydrodynamic initial conditions.

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Massaro, D., C. Arina, J. Heisig, F. Maltoni et O. Mattelaer. « Studying dark matter with MadDM : lines and loops ». Journal of Physics : Conference Series 2156, n^o 1 (1 décembre 2021) : 012073. http://dx.doi.org/10.1088/1742-6596/2156/1/012073.

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Abstract Automated tools for the computation of amplitudes and cross sections have become the backbone of phenomenological studies beyond the standard model. We present the latest developments in MadDM, a calculator of dark-matter observables based on MadGraph5_aMC@NLO. The new version enables the fully automated computation of loop-induced annihilation processes, relevant for indirect detection of dark matter. Of particular interest is the direct annihilation into photons, γγ, γX. These processes lead to monochromatic gamma-ray lines that are smoking-gun signatures for dark-matter annihilation in our Galaxy. MadDM computes the predictions for the expected photon fluxes near Earth and derives constraints from the gamma-ray line searches by Fermi-LAT and HESS. As an application, we present the implications for the parameter space of the Inert Doublet Model.

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Halim, Shimaa Abdel, et Magdy A. Ibrahim. « Simple quantum computation composition, DFT modeling, spectroscopic characterization, and charge, NLO analysis of the novel pyridopyrimidineamide ». Journal of Molecular Structure 1251 (mars 2022) : 132020. http://dx.doi.org/10.1016/j.molstruc.2021.132020.

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Kumar, Mohit, Gautam Jaiswar, Mohd Afzal, Mohd Muddassir, Abdullah Alarifi, Aysha Fatima, Nazia Siddiqui et al. « Quantum Computational, Spectroscopic (FT-IR, FT-Raman, NMR, and UV–Vis) Hirshfeld Surface and Molecular Docking-Dynamics Studies on 5-Hydroxymethyluracil (Monomer and Trimer) ». Molecules 28, n^o 5 (24 février 2023) : 2116. http://dx.doi.org/10.3390/molecules28052116.

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For many decades, uracil has been an antineoplastic agent used in combination with tegafur to treat various human cancers, including breast, prostate, and liver cancer. Therefore, it is necessary to explore the molecular features of uracil and its derivatives. Herein, the molecule’s 5-hydroxymethyluracil has been thoroughly characterized by NMR, UV–Vis, and FT-IR spectroscopy by means of experimental and theoretical analysis. Density functional theory (DFT) using the B3LYP method at 6-311++G(d,p) was computed to achieve the optimized geometric parameters of the molecule in the ground state. For further investigation and computation of the NLO, NBO, NHO analysis, and FMO, the improved geometrical parameters were utilized. The potential energy distribution was used to allocate the vibrational frequencies using the VEDA 4 program. The NBO study determined the relationship between the donor and acceptor. The molecule’s charge distribution and reactive regions were highlighted using the MEP and Fukui functions. Maps of the hole and electron density distribution in the excited state were generated using the TD-DFT method and PCM solvent model in order to reveal electronic characteristics. The energies and diagrams for the lowest unoccupied molecular orbital (LUMO) and the highest occupied molecular orbital (HOMO) were also provided. The HOMO–LUMO band gap estimated the charge transport within the molecule. When examining the intermolecular interactions in 5-HMU, Hirshfeld surface analysis was used, and fingerprint plots were also produced. The molecular docking investigation involved docking 5-HMU with six different protein receptors. Molecular dynamic simulation has given a better idea of the binding of the ligand with protein.

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Thèses sur le sujet "NLO Computation"

LIMATOLA, GIOVANNI. « Infrared Linear Renormalons in Collider Processes ». Doctoral thesis, Università degli Studi di Milano-Bicocca, 2023. https://hdl.handle.net/10281/402371.

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Al fine di descrivere appropriatamente le osservabili studiate tramite collisori adronici e/o leptonici, risulta cruciale una corretta comprensione delle correzioni non perturbative (che si manifestano come correzioni di potenza), lineari nel rapporto tra una scala di energia non perturbativa e la scala caratteristica del processo. Utilizzando un modello abeliano ricerchiamo tali effetti nella distribuzione in momento trasverso di un bosone Z prodotto con un jet in collisioni adroniche, essendo questa una delle osservabili meglio misurate presso LHC. La presenza delle correzioni non perturbative di cui sopra impedirebbe di raggiungere la precisione sperimentale, anche considerando ordini superiori nello sviluppo perturbativo. Non avendo individuato alcuna correzione di questo tipo tramite tecniche semi numeriche, abbiamo scelto di adottare un approccio più rigoroso dal punto di vista teorico, fornendo una spiegazione attorno al manifestarsi di tali correzioni di potenza. Tale comprensione teorica è stata applicata allo studio delle variabili di shape in annichilazione $e^+e^-$, con particolare attenzione allo studio del C-parametro e del thrust, e ottenendo per tali osservabili una stima delle correzioni non perturbative nella regione dei tre jet per la prima volta. In tale lavoro è stata altresì ottenuta un'espressione fattorizzata per le correzioni non perturbative per alcune osservabili, con un termine dipendente dalla variazione dell'osservabile a seguito dell'emissione di un partone soffice, e un termine costante e universale, proporzionale al cosiddetto Milan factor. Tali osservabili sono ampiamente utilizzate al fine di estrarre valori della costante di interazione forte $\alpha_s$ e costituiscono il contesto ideale al fine di compiere studi di QCD perturbativa. È dunque estremamente importante ottenere stime affidabili delle correzioni non perturbative nell'intera regione di spazio delle fasi rilevante per i fit di $\alpha_s$.
Understanding leading non-perturbative corrections, showing up as linear power corrections, is crucial to properly describe observables both at lepton and hadron colliders. Using an abelian model, we examine these effects for the transverse momentum distribution of a $Z$ boson produced in association with a jet in hadronic collisions, that is one of the cleanest LHC observables, where the presence of leading non-perturbative corrections would spoil the chance to reach the current experimental accuracy, even considering higher orders in the perturbative expansion. As we did not find any such corrections exploiting semi-numerical techniques, we looked for a rigorous field-theoretical derivation of them, and explain under which circumstances linear power corrections can arise. We apply our theoretical understanding to the study of event-shape observables in $e^+e^-$ annihilation, focusing in particular on $C$-parameter and thrust, and obtaining for them an estimate of non-perturbative corrections in the three-jet region for the first time. We also derived a factorisation formula for non-perturbative corrections, with a term describing the change of the shape variable when a soft parton is emitted, and a constant universal factor, proportional to the so-called Milan factor. These observables are routinely used to extract the strong coupling constant $\alpha_s$ and they constitute an environment to test perturbative QCD. It is then extremely important to obtain reliable estimates of non-perturbative corrections in the whole kinematic region relevant for the $\alpha_s$ fits.

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Filali, Karim. « Multi-dynamic Bayesian networks for machine translation and NLP / ». Thesis, Connect to this title online ; UW restricted, 2007. http://hdl.handle.net/1773/6857.

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Westin, Emil. « Fine-grained sentiment analysis of product reviews in Swedish ». Thesis, Uppsala universitet, Institutionen för lingvistik och filologi, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-424266.

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In this study we gather customer reviews from Prisjakt, a Swedish price comparison site, with the goal to study the relationship between review and rating, known as sentiment analysis. The purpose of the study is to evaluate three different supervised machine learning models on a fine-grained dependent variable representing the review rating. For classification, a binary and multinomial model is used with the one-versus-one strategy implemented in the Support Vector Machine, with a linear kernel, evaluated with F1, accuracy, precision and recall scores. We use Support Vector Regression by approximating the fine-grained variable as continuous, evaluated using MSE. Furthermore, three models are evaluated on a balanced and unbalanced dataset in order to investigate the effects of class imbalance. The results show that the SVR performs better on unbalanced fine-grained data, with the best fine-grained model reaching a MSE 4.12, compared to the balanced SVR (6.84). The binary SVM model reaches an accuracy of 86.37% and weighted F1 macro of 86.36% on the unbalanced data, while the balanced binary SVM model reaches approximately 80% for both measures. The multinomial model shows the worst performance due to the inability to handle class imbalance, despite the implementation of class weights. Furthermore, results from feature engineering shows that SVR benefits marginally from certain regex conversions, and tf-idf weighting shows better performance on the balanced sets compared to the unbalanced sets.

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Scheible, Silke. « Computational treatment of superlatives ». Thesis, University of Edinburgh, 2009. http://hdl.handle.net/1842/4153.

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The use of gradable adjectives and adverbs represents an important means of expressing comparison in English. The grammatical forms of comparatives and superlatives are used to express explicit orderings between objects with respect to the degree to which they possess some gradable property. While comparatives are commonly used to compare two entities (e.g., “The blue whale is larger than an African elephant”), superlatives such as “The blue whale is the largest mammal” are used to express a comparison between a target entity (here, the blue whale) and its comparison set (the set of mammals), with the target ranked higher or lower on a scale of comparison than members of the comparison set. Superlatives thus highlight the uniqueness of the target with respect to its comparison set. Although superlatives are frequently found in natural language, with the exception of recent work by (Bos and Nissim, 2006) and (Jindal and Liu, 2006b), they have not yet been investigated within a computational framework. And within the framework of theoretical linguistics, studies of superlatives have mainly focused on semantic properties that may only rarely occur in natural language (Szabolsci (1986), Heim (1999)). My PhD research aims to pave the way for a comprehensive computational treatment of superlatives. The initial question I am addressing is that of automatically extracting useful information about the target entity, its comparison set and their relationship from superlative constructions. One of the central claims of the thesis is that no unified computational treatment of superlatives is possible because of their great semantic complexity and the variety of syntactic structures in which they occur. I propose a classification of superlative surface forms, and initially focus on so-called “ISA superlatives”, which make explicit the IS-A relation that holds between target and comparison set. They are suitable for a computational approach because both their target and comparison set are usually explicitly realised in the text. I also aim to show that the findings of this thesis are of potential benefit for NLP applications such as Question Answering, Natural Language Generation, Ontology Learning, and Sentiment Analysis/Opinion Mining. In particular, I investigate the use of the “Superlative Relation Extractor“ implemented in this project in the area of Sentiment Analysis/Opinion Mining, and claim that a superlative analysis of the sort presented in this thesis, when applied to product evaluations and recommendations, can provide just the kind of information that Opinion Mining aims to identify.

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Rontsch, Raoul Horst. « Higher order QCD corrections to diboson production at hadron colliders ». Thesis, University of Oxford, 2012. http://ora.ox.ac.uk/objects/uuid:5c4c3e7e-5c2a-4878-9fad-d9e5e0535d30.

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Hadronic collider experiments have played a major role in particle physics phenomenology over the last few decades. Data recorded at the Tevatron at Fermilab is still of interest, and its successor, the Large Hadron Collider (LHC) at CERN, has recently announced the discovery of a particle consistent with the Standard Model Higgs boson. Hadronic colliders look set to guide the field for the next fifteen years or more, with the discovery of more particles anticipated. The discovery and detailed study of new particles relies crucially on the availability of high-precision theoretical predictions for both the signal and background processes. This requires observables to be calculated to next-to-leading order (NLO) in perturbative quantum chromodynamics (QCD). Many hadroproduction processes of interest contain multiple particles in the final state. Until recently, this caused a bottleneck in NLO QCD calculations, due to the difficulty in calculating one-loop corrections to processes involving three or more final state particles. Spectacular developments in on-shell methods over the last six years have made these calculations feasible, allowing highly accurate predictions for final state observables at the Tevatron and LHC. A particular realisation of on-shell methods, generalised unitarity, is used to compute the NLO QCD cross-sections and distributions for two processes: the hadroproduction of W⁺ W^-jj, and the hadroproduction of W⁺ W^-jj. The NLO corrections to both processes serve to reduce the scale dependence of the results significantly, while having a moderate effect on the central scale choice cross-sections, and leaving the shapes of the kinematic distributions mostly unchanged. Additionally, the gluon fusion contribution to the next-to-next-to-leading order (NNLO) QCD corrections to W⁺ W^-j productions are studied. These contributions are found to be highly depen- dent on the kinematic cuts used. For cuts used in Higgs searches, the gluon fusion effect can be as large as the NLO scale uncertainty, and should not be neglected. All of the higher-order QCD corrections increase the accuracy and reliability of the theoretical predictions at hadronic colliders.

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Eisenberg, Joshua Daniel. « Automatic Extraction of Narrative Structure from Long Form Text ». FIU Digital Commons, 2018. https://digitalcommons.fiu.edu/etd/3912.

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Automatic understanding of stories is a long-time goal of artificial intelligence and natural language processing research communities. Stories literally explain the human experience. Understanding our stories promotes the understanding of both individuals and groups of people; various cultures, societies, families, organizations, governments, and corporations, to name a few. People use stories to share information. Stories are told –by narrators– in linguistic bundles of words called narratives. My work has given computers awareness of narrative structure. Specifically, where are the boundaries of a narrative in a text. This is the task of determining where a narrative begins and ends, a non-trivial task, because people rarely tell one story at a time. People don’t specifically announce when we are starting or stopping our stories: We interrupt each other. We tell stories within stories. Before my work, computers had no awareness of narrative boundaries, essentially where stories begin and end. My programs can extract narrative boundaries from novels and short stories with an F1 of 0.65. Before this I worked on teaching computers to identify which paragraphs of text have story content, with an F1 of 0.75 (which is state of the art). Additionally, I have taught computers to identify the narrative point of view (POV; how the narrator identifies themselves) and diegesis (how involved in the story’s action is the narrator) with F1 of over 0.90 for both narrative characteristics. For the narrative POV, diegesis, and narrative level extractors I ran annotation studies, with high agreement, that allowed me to teach computational models to identify structural elements of narrative through supervised machine learning. My work has given computers the ability to find where stories begin and end in raw text. This allows for further, automatic analysis, like extraction of plot, intent, event causality, and event coreference. These tasks are impossible when the computer can’t distinguish between which stories are told in what spans of text. There are two key contributions in my work: 1) my identification of features that accurately extract elements of narrative structure and 2) the gold-standard data and reports generated from running annotation studies on identifying narrative structure.

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Acosta, Andrew D. « Laff-O-Tron : Laugh Prediction in TED Talks ». DigitalCommons@CalPoly, 2016. https://digitalcommons.calpoly.edu/theses/1667.

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Did you hear where the thesis found its ancestors? They were in the "parent-thesis"! This joke, whether you laughed at it or not, contains a fascinating and mysterious quality: humor. Humor is something so incredibly human that if you squint, the two words can even look the same. As such, humor is not often considered something that computers can understand. But, that doesn't mean we won't try to teach it to them. In this thesis, we propose the system Laff-O-Tron to attempt to predict when the audience of a public speech would laugh by looking only at the text of the speech. To do this, we create a corpus of over 1700 TED Talks retrieved from the TED website. We then adapted various techniques used by researchers to identify humor in text. We also investigated features that were specific to our public speaking environment. Using supervised learning, we try to classify if a chunk of text would cause the audience to laugh or not based on these features. We examine the effects of each feature, classifier, and size of the text chunk provided. On a balanced data set, we are able to accurately predict laughter with up to 75% accuracy in our best conditions. Medium level conditions prove to be around 70% accuracy; while our worst conditions result in 66% accuracy. Computers with humor recognition capabilities would be useful in the fields of human computer interaction and communications. Humor can make a computer easier to interact with and function as a tool to check if humor was properly used in an advertisement or speech.

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Al-Liabi, Majda Majeed. « Computational support for learners of Arabic ». Thesis, University of Manchester, 2012. https://www.research.manchester.ac.uk/portal/en/theses/computational-support-for-learners-of-arabic(abd20b76-3ba2-4e11-8aa5-459ec6d8d7d2).html.

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This thesis documents the use of Natural Language Processing (NLP) in Computer Assisted Language Learning (CALL) and its contribution to the learning experience of students studying Arabic as a foreign language. The goal of this project is to build an Intelligent Computer Assisted Language Learning (ICALL) system that provides computational assistance to learners of Arabic by teaching grammar, producing homework and issuing students with immediate feedback. To produce this system we use the Parasite system, which produces morphological, syntactic and semantic analysis of textual input, and extend it to provide error detection and diagnosis. The methodology we adopt involves relaxing constraints on unification so that correct information contained in a badly formed sentence may still be used to obtain a coherent overall analysis. We look at a range of errors, drawn from experience with learners at various levels, covering word internal problems (addition of inappropriate affixes, failure to apply morphotactic rules properly) and problems with relations between words (local constraints on features, and word order problems). As feedback is an important factor in learning, we look into different types of feedback that can be used to evaluate which is the most appropriate for the aim of our system.

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RE, EMANUELE. « Next - to - leading order qcd corrections to shower Monte Carlo event generators : single vector- boson and single- top hadroproduction ». Doctoral thesis, Università degli Studi di Milano-Bicocca, 2009. http://hdl.handle.net/10281/7455.

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Lagerkvist, Love. « Computation as Strange Material : Excursions into Critical Accidents ». Thesis, Malmö universitet, Institutionen för konst, kultur och kommunikation (K3), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-43639.

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Waking up in a world where everyone carries a miniature supercomputer, interaction designers find themselves in their forerunners dreams. Faced with the reality of planetary-scale we have to confront the task of articulating approaches responsive this accidental ubiquity of computation. This thesis attempts such a formulation by defining computation as a strange material, a plasticity shaped equally by its technical properties and the mode of production by which is its continuously re-produced. The definition is applied through a methodology of excursions — participatory explorations into two seemingly disparate sites of computation, connected in they ways they manifest a labor of care. First, we visit the social infrastructures that constitute the Linux kernel, examining strangle entanglements of programming and care in the world's largest design process. This is followed by a tour into the thorny lands of artificial intelligence, situated in the smart replies of LinkedIn. Here, we investigate the fluctuating border between the artificial and the human with participants performing AI, formulating new Turing tests in the process. These excursions afford an understanding of computation as fundamentally re-produced through interaction, a strange kind of affective work the understanding of which is crucial if we ambition to disarm the critical accidents of our present future.

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Livres sur le sujet "NLO Computation"

Bourigault, Didier, Christian Jacquemin et Marie-Claude L'Homme, dir. Recent Advances in Computational Terminology. Amsterdam : John Benjamins Publishing Company, 2001. http://dx.doi.org/10.1075/nlp.2.

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Chengqing, Zong, Chinese Association for Artificial Intelligence., IEEE Signal Processing Society, IEEE Systems, Man, and Cybernetics Society et Institute of Electrical and Electronics Engineers. Beijing Section., dir. 2003 International conference on natural language processing and knowledge engineering : Proceedings : NLP-KE 2003 : Beijing, China. Piscataway, New Jersey : IEEE, 2003.

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International Conference on Natural Language Processing and Knowledge Engineering (2007 Beijing, China). Proceedings of International Conference on Natural Language Processing and Knowledge Engineering (NLP-KE'07) : Aug. 30-Sep. 1, Beijing China. PIscataway, NJ : IEEE, 2007.

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Gurevych, Iryna. The People’s Web Meets NLP : Collaboratively Constructed Language Resources. Berlin, Heidelberg : Springer Berlin Heidelberg, 2013.

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Kyoko, Kanzaki, et SpringerLink (Online service), dir. Advances in Natural Language Processing : 8th International Conference on NLP, JapTAL 2012, Kanazawa, Japan, October 22-24, 2012. Proceedings. Berlin, Heidelberg : Springer Berlin Heidelberg, 2012.

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Chang, No-hyŏn. Kaehwagi ŭi sŏsa p'unggyŏng : Uri ŭi kŭndae sŏsa nŭn ŏttŏn mosŭp ŭro ch'ulbal hayŏssŭlkka. Sŏul-si : Yŏngnak, 2019.

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Marszalek-Kowalewska, Katarzyna. Persian Computational Linguistics and NLP. de Gruyter GmbH, Walter, 2023.

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Numerical and Evolutionary Optimization - NEO 2017. Springer, 2018.

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Numerical and Evolutionary Optimization - NEO 2017. Springer, 2018.

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The Peoples Web Meets Nlp Collaboratively Constructed Language Resources. Springer-Verlag Berlin and Heidelberg GmbH &, 2013.

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Chapitres de livres sur le sujet "NLO Computation"

Annu, B. S. Yadav, Jayant Teotia, Ravish Kumar Uppadhayay, Isha Rathi et Vikas Kumar. « Vibrational Spectral Studies, Thermodynamic Investigations and DFT (NLO, NBO, MEP) Computation of Benzene Derivative ». Dans Springer Proceedings in Physics, 463–85. Singapore : Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-7691-8_44.

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Shao, Hua-Sheng. « Automation of NLO Computations ». Dans Heavy Quarkonium Production Phenomenology and Automation of One-Loop Scattering Amplitude Computations, 139–50. Singapore : Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-1624-0_10.

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Shao, Hua-Sheng. « NLO Computations and Automation Philosophy ». Dans Heavy Quarkonium Production Phenomenology and Automation of One-Loop Scattering Amplitude Computations, 91–99. Singapore : Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-1624-0_7.

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Bunt, Harry, et William Black. « The ABC of Computational Pragmatics ». Dans Natural Language Processing, 1–46. Amsterdam : John Benjamins Publishing Company, 2000. http://dx.doi.org/10.1075/nlp.1.01bun.

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Mohanty, Hrushikesha. « NLP for Sentiment Computation ». Dans Studies in Computational Intelligence, 1–21. Singapore : Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-6815-6_1.

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Adesam, Yvonne, Peter Andersson Lilja, Lars Borin et Gerlof Bouma. « Chapter 4. A lexical resource for computational historical linguistics* ». Dans Natural Language Processing, 97–122. Amsterdam : John Benjamins Publishing Company, 2021. http://dx.doi.org/10.1075/nlp.14.04ade.

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Bourigault, Didier, Christian Jacquemin et Marie-Claude L'Homme. « Introduction ». Dans Recent Advances in Computational Terminology, viii—xviii. Amsterdam : John Benjamins Publishing Company, 2001. http://dx.doi.org/10.1075/nlp.2.01bou.

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Aizawa, Akiko, et Kyo Kageura. « A graph-based approach to the automatic generation of multilingual keyword clusters ». Dans Recent Advances in Computational Terminology, 1–27. Amsterdam : John Benjamins Publishing Company, 2001. http://dx.doi.org/10.1075/nlp.2.02aiz.

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Anick, Peter G. « The automatic construction of faceted terminological feedback for interactive document retrieval ». Dans Recent Advances in Computational Terminology, 29–52. Amsterdam : John Benjamins Publishing Company, 2001. http://dx.doi.org/10.1075/nlp.2.03ani.

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Cabré Castellví, M. Teresa, Rosa Estopà Bagot et Jordi Vivaldi Palatresi. « Automatic term detection ». Dans Recent Advances in Computational Terminology, 53–87. Amsterdam : John Benjamins Publishing Company, 2001. http://dx.doi.org/10.1075/nlp.2.04cab.

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Actes de conférences sur le sujet "NLO Computation"

Driencourt-Mangin, Félix. « Computation of NLO processes involving heavy quarks using Loop-Tree Duality ». Dans DIFFRACTION 2016 : International Workshop on Diffraction in High-Energy Physics. Author(s), 2017. http://dx.doi.org/10.1063/1.4977166.

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Andreu, R., M. J. Blesa, S. Franco, J. Garín, J. Orduna, Theodore E. Simos et George Maroulis. « Ab Initio HF and DFT Calculation of the Second Order NLO Response of Tetrathiafulvalene and 1,3-Dithiole Derivatives ». Dans COMPUTATIONAL METHODS IN SCIENCE AND ENGINEERING : Theory and Computation : Old Problems and New Challenges. Lectures Presented at the International Conference on Computational Methods in Science and Engineering 2007 (ICCMSE 2007) : VOLUME 1. AIP, 2007. http://dx.doi.org/10.1063/1.2836075.

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Sayano, Koichi, et Feng Zhao. « Optical correlation of phase- and amplitude-encoded objects using wavelength-multiplexed holographic storage elements ». Dans Nonlinear Optics : Materials, Fundamentals and Applications. Washington, D.C. : Optica Publishing Group, 1996. http://dx.doi.org/10.1364/nlo.1996.jtud.11.

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Optical image correlation has been demonstrated for recognition of patterns and images by comparing against stored reference filters corresponding to known images. Optical implementation of this operation is highly desirable because image correlation can be generated in an analog fashion using common optical elements, providing considerable speed advantages over digital computation. Spatial light modulators have been used as the filters in a vanderLugt correlator configuration, but low throughput and slow download times, particularly for a large number high resolution images, were major drawbacks. Using a wavelength multiplexed holographic element for storage of the reference image filters provides increased access speed, and the recent availability of visible wavelength, tunable external cavity semiconductor lasers, wavelength multiplexing becomes practical. In this paper, we report on an optical image correlation system using a holographic storage element for fast access speed and translation tolerance. Amplitude and phase encoded transparencies, as well as spatial light modulators, were used as the input image sources.

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Sborlini, Germán. « From dimensional regularization to NLO computations in four dimensions ». Dans The European Physical Society Conference on High Energy Physics. Trieste, Italy : Sissa Medialab, 2016. http://dx.doi.org/10.22323/1.234.0479.

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Frederix, Rikkert. « Automation of NLO computations using the FKS subtraction method ». Dans RADCOR 2009 - 9th International Symposium on Radiative Corrections (Applications of Quantum Field Theory to Phenomenology). Trieste, Italy : Sissa Medialab, 2010. http://dx.doi.org/10.22323/1.092.0066.

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Thanmayalaxmi, D., A. Suvitha, Akumalla Sanath Kumar, K. Gugan et Shivraj R. Maidur. « Spectral investigations, NLO, NBO, HOMO-LUMO, MEP, ADME parameters of 2-methyl-p-benzoquinone using quantum computations and CADD technique ». Dans PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS : ICAM 2019. AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5130247.

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van Hameren, Andreas. « Computational tools for scattering amplitudes at LO and NLO QCD ». Dans “Loops and Legs in Quantum Field Theory ” 11th DESY Workshop on Elementary Particle Physics. Trieste, Italy : Sissa Medialab, 2013. http://dx.doi.org/10.22323/1.151.0024.

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Le, Ninh D., Fauzi Boudjema, Marcus Weber et Hao Sun. « NLO corrections to WWZ and ZZZ production at the ILC ». Dans 3rd Computational Particle Physics Workshop. Trieste, Italy : Sissa Medialab, 2011. http://dx.doi.org/10.22323/1.131.0014.

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Ramachandra, Pillai Indu, C. Ravikumar, V. S. Jayakumar, I. Hubert Joe, V. K. Vaidyan et V. S. Jayakumar. « Spectroscopic Investigations and Quantum Chemical Computations of NLO Material Bis (4-Nitrophenyl) Carbonate ». Dans PERSPECTIVES IN VIBRATIONAL SPECTROSCOPY : Proceedings of the 2nd International Conference on Perspectives in Vibrational Spectroscopy (ICOPVS 2008). AIP, 2008. http://dx.doi.org/10.1063/1.3046182.

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Garcia, M. Helena, Paulo J. Mendes, Pedro Florindo et Tiago Silva. « Design and synthesis of NLO efficient organometallic molecules ». Dans PROCEEDINGS OF THE INTERNATIONAL CONFERENCE OF COMPUTATIONAL METHODS IN SCIENCES AND ENGINEERING 2010 (ICCMSE-2010). AIP Publishing LLC, 2015. http://dx.doi.org/10.1063/1.4906731.

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Rapports d'organisations sur le sujet "NLO Computation"

NAVAL POSTGRADUATE SCHOOL MONTEREY CA. Applied Computational Electromagnetics Society Journal. Volume 13, No. 1. Fort Belvoir, VA : Defense Technical Information Center, mars 1998. http://dx.doi.org/10.21236/ada348864.

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Riveros, Guillermo, Felipe Acosta, Reena Patel et Wayne Hodo. Computational mechanics of the paddlefish rostrum. Engineer Research and Development Center (U.S.), septembre 2021. http://dx.doi.org/10.21079/11681/41860.

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Purpose – The rostrum of a paddlefish provides hydrodynamic stability during feeding process in addition to detect the food using receptors that are randomly distributed in the rostrum. The exterior tissue of the rostrum covers the cartilage that surrounds the bones forming interlocking star shaped bones. Design/methodology/approach – The aim of this work is to assess the mechanical behavior of four finite element models varying the type of formulation as follows: linear-reduced integration, linear-full integration, quadratic-reduced integration and quadratic-full integration. Also presented is the load transfer mechanisms of the bone structure of the rostrum. Findings – Conclusions are based on comparison among the four models. There is no significant difference between integration orders for similar type of elements. Quadratic-reduced integration formulation resulted in lower structural stiffness compared with linear formulation as seen by higher displacements and stresses than using linearly formulated elements. It is concluded that second-order elements with reduced integration and can model accurately stress concentrations and distributions without over stiffening their general response. Originality/value – The use of advanced computational mechanics techniques to analyze the complex geometry and components of the paddlefish rostrum provides a viable avenue to gain fundamental understanding of the proper finite element formulation needed to successfully obtain the system behavior and hot spot locations.

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Roberson, G. Patrick, et Jolyon Browne. Image Matrix Processor for Volumetric Computations Final Report CRADA No. TSB-1148-95. Office of Scientific and Technical Information (OSTI), janvier 2018. http://dx.doi.org/10.2172/1418931.

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McCallen, D. B., et S. Miller. Computation of the Seismic Stability of Earth Retaining Structures Final Report CRADA No. TSB-954-94. Office of Scientific and Technical Information (OSTI), février 2018. http://dx.doi.org/10.2172/1426083.

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Blanton, Brian, Lisa Stillwell, Hugh Roberts, John Atkinson, Shan Zou, Michael Forte, Jeffrey Hanson et Rick Luettich. Coastal Storm Surge Analysis : Computational System, Report 2 : Intermediate Submission No. 1.2. Fort Belvoir, VA : Defense Technical Information Center, mars 2011. http://dx.doi.org/10.21236/ada539306.

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Sander, J., et D. Schutzer. Financial Information Systems Advanced Computational Technologies Final Report CRADA No. TC-0496-93. Office of Scientific and Technical Information (OSTI), février 2018. http://dx.doi.org/10.2172/1424666.

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Schutt, Timothy C., et Manoj K. Shukla. Computational Investigation on Interactions Between Some Munitions Compounds and Humic Substances. Engineer Research and Development Center (U.S.), février 2021. http://dx.doi.org/10.21079/11681/39703.

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Humic acid substances (HAs) in natural soil and sediment environments effect the retention and degradation of insensitive munitions compounds and legacy high explosives (MCs): DNAN, DNi- NH4+, nMNA, NQ, NTO (neutral and anionic forms), TNT, and RDX.A humic acid model compound has been considered using molecular dynamics, thermodynamic integration, and density functional theory to characterize the munition binding ability, ionization potential, and electron affinity compared to that in the water solution. Humic acids bind most compounds and act as both a sink and source for electrons. Ionization potentials suggest HAs are more susceptible to oxidation than the MCs studied. The electron affinity of HAs are very conformation-dependent and spans the same range as the munition compounds. When HAs and MCs are complexed the HAs tend to radicalize first thus buffering MCs against reductive as well as oxidative attacks.

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Shukla, Manoj K., Luidmyla K. Sviatenko, Sergly I. Okovytyy, Danuta Leszczynska et Jerzy Leszczynski. Catalytic Role of Solvated Electron in the Spontaneous Degradation of Insensitive Munition Compounds : Computational Chemistry Investigation. Engineer Research and Development Center (U.S.), juillet 2021. http://dx.doi.org/10.21079/11681/41122.

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The DNAN (2,4-dinitroanisole), NTO (3-nitro-1,2,4-triazol-5-one), and NQ (nitroguanidine) are important insensitive energetic materials used in military applications. They may find their way to the environment during manufacturing, transportation, storage, training, and disposal. A detailed investigation of possible mechanisms for self-degradation of radical-anions formed by addition of solvated electron to DNAN, NTO, and NQ species was performed by computational study using the PCM(Pauling)/M06-2X/6-311++G(d,p) approach. Obtained results suggest that only NQ radical-anion is able for self-degradation by elimination of nitrite anion. Formation of urea radical on the earlier stage of the NQ radical-anion degradation was also predicted.

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Kumpaty, S. K., K. Subramanian et T. L. Hodges. Computational Modeling and Experimental Studies on NO(x) Reduction Under Pulverized Coal Combustion Conditions. Office of Scientific and Technical Information (OSTI), septembre 1997. http://dx.doi.org/10.2172/643580.

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De Supinski, B., et D. Caliga. Compiling for Application Specific Computational Acceleration in Reconfigurable Architectures Final Report CRADA No. TSB-2033-01. Office of Scientific and Technical Information (OSTI), septembre 2017. http://dx.doi.org/10.2172/1399732.

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