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The Spiral Array: An Algorithm for Determining Key Boundaries
[chapter]
2002
Lecture Notes in Computer Science
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This paper proposes a Boundary Search Algorithm (BSA) for determining points of modulation in a piece of music using a geometric model for tonality called the Spiral Array. ...
Computer models for determining key boundaries are important tools for computer analysis of music, computational modeling of music cognition, content-based categorization and retrieval of music information ...
6 Acknowledgements I thank Jeanne Bamberger for her guidance and cogent advice that made this research possible and, Martin Brody for his insightful comments on interpreting the results in an early version ...
doi:10.1007/3-540-45722-4_4
fatcat:226gbopxpjf45ofa3cf4iohj3i
Regards On Two Regards By Messiaen: Automatic Segmentation Using The Spiral Array
2004
Proceedings of the SMC Conferences
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''The Spiral Array: An Algorithm for
Determining Key Boundaries'', in C. ...
The distance in other things. The previous model for determining key
the Spiral Array space between the c.e.’s of each pair of boundaries is the one most relevant to this paper. ...
doi:10.5281/zenodo.849216
fatcat:vkrcln77krb2nc5kshbfvujad4
Slicing It All Ways: Mathematical Models for Tonal Induction, Approximation, and Segmentation Using the Spiral Array
2006
INFORMS journal on computing
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The spiral array is a geometric model for tonality that clusters perceptually similar tonal entities. The model summarizes music information as interior points inside an array of spirals. ...
This paper presents the spiral array model and its associated algorithms for tonal induction, approximation, and segmentation. ...
Acknowledgments The research has been funded by the Integrated Media Systems Center, a National Science Foundation Engineering Research Center, Cooperative Agreement EEC-9529152, and NSF grants ITR-0219912 ...
doi:10.1287/ijoc.1050.0134
fatcat:4d3ccsns2zdwrmnx2m5hzgc7bi
The warm ionized medium in spiral galaxies
2009
Reviews of Modern Physics
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2009 pre-print arXiv:0901.0941v1 fatcat:rge3eoou3ral5h72sfwocnrwui
It was inspired by a series of invited talks presented during an afternoon scientific session of the 65th birthday celebration for Professor Carl Heiles held at Arecibo Observatory in August 2004. ...
This review is in recognition of Carl's long standing interest in and advocacy for studies of the ionized as well as the neutral components of the interstellar medium. ...
Some key points in the method for deriving these maps and quantifying the DIG emission include the following. ...
doi:10.1103/revmodphys.81.969
fatcat:hxsnwrhqujewfob4ha7tgip5nq
CAUGHT IN THE ACT: STRONG, ACTIVE RAM PRESSURE STRIPPING IN VIRGO CLUSTER SPIRAL NGC 4330
2011
Astronomical Journal
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The UV-optical colors indicate very different star formation histories for the leading and trailing sides of the galaxy. ...
We present a multi-wavelength study of NGC 4330, a highly-inclined spiral galaxy in the Virgo Cluster which is a clear example of strong, ongoing ICM-ISM ram pressure stripping. ...
The synthesized beam size FWHM for the C-short array data is 16.5 x 15.9 ′′ , and the FWHM for the D-array data is 72.2 x 48.2 ′′ . ...
doi:10.1088/0004-6256/141/5/164
fatcat:667a5q3hcrbslgivpiizr6gvhu
DOES THE MILKY WAY OBEY SPIRAL GALAXY SCALING RELATIONS?
2016
Astrophysical Journal
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2016 pre-print arXiv:1610.05769v1 fatcat:htthdfuwonc4dgbgwcyi6lwi3a
with those used for other spiral galaxies. ...
Here we find that our Galaxy lies farther from the relation than ∼90% of other spiral galaxies, yielding ∼9.5σ evidence that it is unusually compact for its L and V_rot (based on MW errors alone), a result ...
We thank Andrew Zentner for several useful discussions about the ideas presented herein. We also thank the anonymous referee for providing helpful suggestions. ...
doi:10.3847/1538-4357/833/2/220
fatcat:6lant3z6anaxdjqffkyhhjoceq
SPIRAL: Code Generation for DSP Transforms
2005
Proceedings of the IEEE
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SPIRAL formulates the tuning as an optimization problem and exploits the domain-specific mathematical structure of transform algorithms to implement a feedback-driven optimizer. ...
Similar to a human expert, for a specified transform, SPIRAL "intelligently" generates and explores algorithmic and implementation choices to find the best match to the computer's microarchitecture. ...
Tsao for teaming them up. Further, the authors acknowledge the many interactions with A. Tsao, D. Healy, D. Cochran, and more recently with F. Darema, during the development of SPIRAL. ...
doi:10.1109/jproc.2004.840306
fatcat:gdb4elhbl5eg5h7obiipe2sjlu
Control Routh Array And Its Applications
2008
Asian journal of control
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In this paper the Routh stability criterion [16] has been developed into control Routh array. Some formulas for calculating the array are provided. Certain properties are investigated. ...
Several algorithms have been developed to provide numerical solutions. ...
For an easy reference, we cite it as the following. ...
doi:10.1111/j.1934-6093.2003.tb00104.x
fatcat:wbg7xplp5fbtdcot7qqb7ymyni
Variation in GMC Association Properties across the Bars, Spiral Arms, Inter-arms, and Circumnuclear Region of M100 (NGC 4321) Extracted from ALMA Observations
2017
Astrophysical Journal
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Comparisons of GMA properties acquired with the use of the 12-m-array observations with those from the feathered data are also presented. ...
The results show that the missing flux and extended emission cannot be neglected for the study of environmental dependence. ...
The key results are summarized in Section 7.
Data We used the processed 12 m + Atacama Compact Array (ACA; ACA=7 m + total power) archival ALMA SV data at Band 3 (115 GHz; 12 CO (1-0)) on M100. ...
doi:10.3847/1538-4357/aa60c2
fatcat:6zea626gsfcpldawgdccikgexe
Spiral galaxies as progenitors of pseudo-bulge hosting S0s
2015
Monthly notices of the Royal Astronomical Society
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2015 pre-print arXiv:1503.07635v1 fatcat:nra53vo2svh25gdqepiejmmsmu
We present observations of pseudobulges in S0 and spiral galaxies using imaging data taken with the Spitzer Infra-Red Array Camera. ...
We find that the bulge effective radius is correlated with the disk scale length for pseudobulges of S0s and spirals, as expected for secular formation of bulges from disk instabilities, though the disks ...
KV acknowledges Council of Scientific and Industrial Research (CSIR), India for financial support. ...
doi:10.1093/mnras/stv668
fatcat:vfrqt32dlvclpbfad5ogf6mtuq
GIANT MOLECULAR CLOUDS AND STAR FORMATION IN THE NON-GRAND DESIGN SPIRAL GALAXY NGC 6946
2012
Astrophysical Journal
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We present high spatial resolution observations of Giant Molecular Clouds (GMCs) in the eastern part of the nearby spiral galaxy NGC 6946 obtained with the Combined Array for Research in Millimeter-wave ...
Using the automated CPROPS algorithm we identified 44 CO cloud complexes in the 12CO(1-0) map and 64 GMCs in the 12CO(2-1) maps. ...
The authors thank the anonymous referee for comments that have improved the presentation and the discussion of the paper. ...
doi:10.1088/0004-637x/757/2/155
fatcat:oi4cjktuevgv3im4goyo5ih3ja
Comparing gaseous and stellar orbits in a spiral potential
2013
Monthly notices of the Royal Astronomical Society
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In order to test this common assumption, we have performed MHD simulations of a galactic-like disk under the influence of a spiral galactic potential. ...
Also, in contrast to the stellar behaviour, near the 4:1 (or higher order) resonance the gas follows nearly circular orbits, with much shorter radial excursions than the stars. ...
Henney for reviewing the manuscript and an anonymous referee for comments that led to a much improved paper. ...
doi:10.1093/mnras/stt107
fatcat:sazqap75qvhk5kqowebrhqmlz4
The Reconfigurable Instruction Cell Array
2008
IEEE Transactions on Very Large Scale Integration (vlsi) Systems
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For the development of the RICA, a top-down software driven approach was taken and revealed as one of the key design decisions for a flexible, easy to program, low-power architecture. ...
This paper presents a novel instruction cell-based reconfigurable computing architecture for low-power applications, thereafter referred to as the reconfigurable instruction cell array (RICA). ...
An automatic tool flow has been developed for the hardware generation of the RICA arrays. ...
doi:10.1109/tvlsi.2007.912133
fatcat:zibqfwr7obehbd7pcgtox7ponq
MODELING THE MAGNETIC FIELD IN THE GALACTIC DISK USING NEW ROTATION MEASURE OBSERVATIONS FROM THE VERY LARGE ARRAY
2011
Astrophysical Journal
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We have determined 194 Faraday rotation measures (RMs) of polarized extragalactic radio sources using new, multi-channel polarization observations at frequencies around 1.4 GHz from the Very Large Array ...
tested, an axisymmetric spiral model with reversals occurring in rings (as opposed to along spiral arms) best matched our observations. ...
We also thank Rick Perley and the other staff at the NRAO for their assistance in collecting and processing the data. ...
doi:10.1088/0004-637x/728/2/97
fatcat:37266ok43bdd7ikeidspjijb74
Reconstruction of the Parker spiral with the Reverse In situ data and MHD APproach - RIMAP
2020
Journal of Space Weather and Space Climate
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on the Sun (inner boundary). ...
The reconstruction of plasma parameters in the interplanetary medium is very important to understand the interplanetary propagation of solar eruptions and for Space Weather application purposes. ...
The authors acknowledge R. Susino for his help in the preparation of the in situ data during the first phases of this work, and in the comparison with the ENLIL model results. ...
doi:10.1051/swsc/2020072
fatcat:nmclqbxm5jdvzdez44s37ewl2i
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