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Automatic Summarization based on Field Coherent Passages

Mahmoud Rokaya
2013 International Journal of Computer Applications  
This work presents improvements of the power link to get a more shorter summary. Also this method reduces the run time of the extraction algorithm.  ...  Readers have no time to explore lengthy documents and passages.  ...  Passage Coherent 88.88609 76.17087 82.52848  ... 
doi:10.5120/13772-1636 fatcat:cme74z2d7nbxraslhcixtrdxfy

Stimulated adiabatic passage in a dissipative ensemble of atoms with strong Rydberg-state interactions

David Petrosyan, Klaus Mølmer
2013 Physical Review A. Atomic, Molecular, and Optical Physics  
We study two-photon excitation of Rydberg states of atoms under stimulated adiabatic passage with delayed laser pulses.  ...  This system can be used for deterministic creation and, possibly, extraction of Rydberg atoms or ions one at a time.  ...  |r by the second coherent field of Rabi frequency Ω er [ Fig. 1(a) ].  ... 
doi:10.1103/physreva.87.033416 fatcat:shtndvufuzhlvoat47msb4rgwe

Adiabatic passage in the presence of noise

T. Noel, M. R. Dietrich, N. Kurz, G. Shu, J. Wright, B. B. Blinov
2012 Physical Review A. Atomic, Molecular, and Optical Physics  
We report on an experimental investigation of rapid adiabatic passage (RAP) in a trapped barium ion system.  ...  We focus on the interplay of laser frequency noise and laser power in shaping the effectiveness of RAP, which is commonly assumed to be a robust tool for high efficiency population transfer.  ...  Adiabatic passage has been used for coherent population transfer in many fields [1] [2] [3] [4] .  ... 
doi:10.1103/physreva.85.023401 fatcat:ylbegqnccbhjrnjo73e7tx5fau

Introduction of DMD Method to Study the Dynamic Structures of a Three-Dimensional Centrifugal Compressor with and without Flow Control

Shuli Hong, Guoping Huang, Yuxuan Yang, Zepeng Liu
2018 Energies  
The effective flow control created uniform vortex structures and improved the overall order of the flow field in the compressor.  ...  The global spectrums with different global energy norms and the coherent structures with different scales can be obtained through the DMD analysis of the three-dimensional controlled and uncontrolled compressors  ...  Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/en11113098 fatcat:huw2n622pfbg5mcnotrktvzamq

Beam Optics for a 12-GeV Isochronous Ring Cyclotron

R. Baartman, G. H. Mackenzie, R. Laxdal, R. Lee
1983 IEEE Transactions on Nuclear Science  
The amount of beam lost would depend on the details of the magnet field and extraction geometry. .  ...  We expect no correla- tion between the incoming stretched ellipse and the direction of stretching at each passage.  ... 
doi:10.1109/tns.1983.4332699 fatcat:jekjtvysbjeivky7pyg5trfcjm

Particle Image Velocimetry (PIV) Investigation of Blade and Purge Flow Impacts on Inter-Stage Flow Field in a Research Turbine

Zhenyang Zhang, Hongwei Ma
2019 Energies  
Coherent structures in the flow field are extracted by the proper orthogonal decomposition (POD) method.  ...  Flow field in the inter-stage is of great importance to jet engine turbine performance and efficiency. Investigation of flow fields is limited by the complex geometrical structure.  ...  Coherent structures analysis Time-averaged velocity field, calculated from instantaneous results, could be considered as a superposition of coherent structures, which could be extracted by the POD method  ... 
doi:10.3390/en12071240 fatcat:zjqewcg3fzg53d6fglbx2ps24u

EXCERPT — a Within-Document Retrieval System Using Summarization Techniques

Jürgen Reischer
2021 Zenodo  
Parameters like coherence and cue words are used for scoring relevant passages, which are extracted according to user needs.  ...  Segments of sentence to paragraph size can be retrieved, assembled to greater passages and ranked by informativeness.  ...  It should be noted here that passage retrieval for question answering and pure summarization are not genuine fields of application for EXCERPT.  ... 
doi:10.5281/zenodo.5503631 fatcat:wwva5jdb3bfpbgedig6xi73as4

A silicon-based single-electron interferometer coupled to a fermionic sea

Anasua Chatterjee, Sergey N. Shevchenko, Sylvain Barraud, Rubén M. Otxoa, Franco Nori, John J. L. Morton, M. Fernando Gonzalez-Zalba
2018 Physical review B  
By performing multiple fast passages around the qubit avoided crossing, we observe a multi-passage LZSM interferometry pattern.  ...  Our results demonstrate a way to increase the state readout signal of coherent quantum systems and replicate single-electron analogues of optical interferometry within a CMOS transistor.  ...  To perform coherent fast passages through the DQD anticrossing, a harmonic microwave electric field of amplitude A mw and frequency f mw = 21 GHz is delivered via an on-PCB antenna.  ... 
doi:10.1103/physrevb.97.045405 fatcat:kl66jqcu7fhild77lk4w5f4hki

Numerical Investigation of Transient Flow Characteristics in a Centrifugal Compressor Stage with Variable Inlet Guide Vanes at Low Mass Flow Rates

Shuai Li, Yan Liu, Mohammad Omidi, Chuang Zhang, Hongkun Li
2021 Energies  
Meanwhile, the modal decomposition method and flow field reconstruction techniques are used to investigate the coherent flow structures caused by low frequency under different guide vane openings.  ...  This study numerically investigates the beneficial effects of positive pre-swirl on the aerodynamic performance and internal flow field in a centrifugal compressor stage with variable inlet guide vanes  ...  The feature extraction methods of coherent flow structure have been proposed in the literature.  ... 
doi:10.3390/en14237906 fatcat:bnf2ls7wwvgddljh53dygrffri

Observation of Time-Domain Rabi Oscillations in the Landau-Zener Regime with a Single Electronic Spin

Jingwei Zhou, Pu Huang, Qi Zhang, Zixiang Wang, Tian Tan, Xiangkun Xu, Fazhan Shi, Xing Rong, S. Ashhab, Jiangfeng Du
2014 Physical Review Letters  
The combination of the control techniques and the favorable coherent properties of NV centers provides an excellent experimental platform to study a variety of quantum dynamical phenomena.  ...  We observed the new type of Rabi oscillations of the electron spin resulting from the interference between successive Landau-Zener processes in various regimes, including both slow and fast passages.  ...  The coherence time of the quantum system is required to be long enough to allow the coherent interference between multiple LZ processes, and the control fields are required to be accurate and stable in  ... 
doi:10.1103/physrevlett.112.010503 pmid:24483877 fatcat:g3mnra2wevewthk4wzxab32464

A Simulation Study of an Unpolarized Field

Youssef Khmou
2018 International Journal of Control and Automation  
In the first part, we introduce a new expression of degree of polarization using the spectrum of coherency matrix, precisely first and second order statistics.  ...  In the second part, we analyze the intensity of particular case of unpolarized field as a function of polarizer's orientation.  ...  First we want to derive the expression of the coherency matrix after the passage of the field through the polarizer.  ... 
doi:10.14257/ijca.2018.11.1.04 fatcat:cvnhjfz4nzgwfcyhh6ri7c45la

Tomographic Particle Image Velocimetry and Dynamic Mode Decomposition (DMD) in a Rectangular Impinging Jet: Vortex Dynamics and Acoustic Generation

Hassan H. Assoum, Jana Hamdi, Marwan Alkheir, Kamel Abed Meraim, Anas Sakout, Bachar Obeid, Mouhammad El Hassan
2021 Fluids  
The findings of this research highlight the coherent structures signature in the DMD's spectral content and show the cross correlations between the DMD's modes and the acoustic field.  ...  The purpose of this study is to investigate the flow dynamics and, more specifically, the coherent structures involved in the acoustic generation of these jets.  ...  Acknowledgments: The authors wish to thank FEDER and the 'Region of Nouvelle Aquitaine', France for its financial support. Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/fluids6120429 fatcat:als2n2fbtzd2jna3ivv5s4gphi

Semantically driven snippet selection for supporting focused web searches

Iraklis Varlamis, Sofia Stamou
2009 Data & Knowledge Engineering  
Finally, we evaluate the query-related text fragments in terms of coherence and expressiveness and pick from every retrieved page the text nugget that highly correlates to the query intention and is also  ...  Thus far, the extraction of text snippets from the returned pages' contents relies on statistical methods in order to determine which text fragments contain most of the query keywords.  ...  Each algorithm extracted the best passage from every document and returned ten passages for each of our experimental queries.  ... 
doi:10.1016/j.datak.2008.10.002 fatcat:7kvqvexu7rb7rhtdv6fsehtiwy

Novel Schemes for Compact FELs in the THz Region

Doria, Gallerano, Giovenale
2019 Condensed Matter  
Free electron laser (FEL)-based sources are probably the best candidates to express such a versatility; there are a number of schemes that have been investigated over the years to generate coherent radiation  ...  (TDS), in terms of bandwidth and pulse duration.  ...  In order to extract as much power as possible in a single-pass device, we have to work in the coherent spontaneous emission regime and super-radiant regime.  ... 
doi:10.3390/condmat4040090 fatcat:ylgvxynetzfbpc2rpz45ufkizy

Introduction to the Special Issue on Summarization

Dragomir R. Radev, Eduard Hovy, Kathleen McKeown
2002 Computational Linguistics  
Ensuring coherence is difficult, because this in principle requires some understanding of the content of each passage and knowledge about the structure of discourse.  ...  passages from the original document to produce an extract.  ... 
doi:10.1162/089120102762671927 fatcat:suc42urx2zerdik3q2grlpid3u
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