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PLANC: Parallel Low Rank Approximation with Non-negativity Constraints [article]

Srinivas Eswar, Koby Hayashi, Grey Ballard, Ramakrishnan Kannan, Michael A. Matheson, Haesun Park
2019 arXiv   pre-print
We present a software package called PLANC (Parallel Low Rank Approximation with Non-negativity Constraints), which implements our solution and allows for extension in terms of data (dense or sparse, matrices  ...  We consider the problem of low-rank approximation of massive dense non-negative tensor data, for example to discover latent patterns in video and imaging applications.  ...  In this paper, we present an open-source software package called Parallel Low-Rank Approximation with Non-negativity Constraints (PLANC) that currently includes six algorithmic options, and we describe  ... 
arXiv:1909.01149v1 fatcat:6lqh5upkujf3fpbd5wucc6wd24

PL-NMF: Parallel Locality-Optimized Non-negative Matrix Factorization [article]

Gordon E. Moon, Aravind Sukumaran-Rajam, Srinivasan Parthasarathy and P. Sadayappan
2019 arXiv   pre-print
Non-negative Matrix Factorization (NMF) is a key kernel for unsupervised dimension reduction used in a wide range of applications, including topic modeling, recommender systems and bioinformatics.  ...  Due to the compute-intensive nature of applications that must perform repeated NMF, several parallel implementations have been developed in the past.  ...  Given a non-negative matrix A ∈ R V ×D + and K ≪ min(V , D), NMF finds two non-negative rank-K matricesW ∈ R V ×K + and H ∈ R K ×D + , such that the product of W and H approximates A [15] : A ≈ W H (1  ... 
arXiv:1904.07935v1 fatcat:e6brehvipngrhflwvttp7ehyde

Concurrent Alternating Least Squares for multiple simultaneous Canonical Polyadic Decompositions [article]

Christos Psarras, Lars Karlsson, Rasmus Bro, Paolo Bientinesi
2021 arXiv   pre-print
, and non-negativity constraints.  ...  When the number of components is small, regardless of its implementation, ALS exhibits low arithmetic intensity, which severely hinders its performance and makes GPU offloading ineffective.  ...  Let U Non-negativity constraints CALS is also compatible with active set-based approaches for enforcing non-negativity constraints to the factor matrices.  ... 
arXiv:2010.04678v2 fatcat:simngaumevegzlzb5jy47iibwu

A Scalable Thermal Reservoir Simulator for Giant Models on Parallel Computers [article]

Hui Liu, Zhangxin Chen
2019 arXiv   pre-print
This paper introduces the model, numerical methods, algorithms and parallel implementation of a thermal reservoir simulator that designed for numerical simulations of thermal reservoir with multiple components  ...  in three dimensional domain using distributed-memory parallel computers.  ...  Rate and Pressure Constraints A well may have many operation constraints, such as maximal injection rate with maximal bottom hole pressure for injection well, maximal oil production rate with minimal bottom  ... 
arXiv:1812.03952v11 fatcat:hwvfpbvhyvaz3jejx6giaoq22u

Edge and line feature extraction based on covariance models

F. van der Heijden
1995 IEEE Transactions on Pattern Analysis and Machine Intelligence  
The results are compared with the performances of 1-D edge detectors known from literature. Generalizations to 2-D operators are given.  ...  This matrix has rank N.  ...  However, an approximate solution (with some loss of optimality) appears to be feasible.  ... 
doi:10.1109/34.368155 fatcat:v3dvjmna6bhljmql4lkq5tyipq

Emigration in a black howling monkey group

Cláudia Calegaro-Marques, Júlio César Bicca-Marques
1996 International journal of primatology  
Due to the small sample size, non-parametric tests were used to explore possible significant differences in the behavi~urs between different variables, as these tests use mean ranks rather than a c t u  ...  Non-social play: Individual engages in somewhac exaggeratea actions with no other individuals. May include qrappiinc with branches or other objects, swinging from hands feet 3r tail.  ... 
doi:10.1007/bf02735450 fatcat:fe32d22n7jb57iq66mebe5ptzm

Bacterial evolution

C R Woese
1987 Microbiological reviews  
When this condition is met even approximately, evolutionary distances can be used to reconstruct phylogenies with reasonable accuracy (36, 47, 49, 157) .  ...  Although mycoplasmas arose from ancestors (clostridia) having normal genomes, and so presumably normal mutation rates, the constraints keeping mutation rates low cease to exist once genome size decreases  ... 
pmid:2439888 pmcid:PMC373105 fatcat:z3cigokpd5gvlnu565gom6gdk4

Proceedings of the Thirty-Fifth Annual Meeting of the American Philological Association Held at New Haven, Conn., July, 1903 Also of the Fourth Annual Meeting of the Philological Association of the Pacific Coast Held at San Francisco, Cal., Dec., 1902

1903 Transactions and Proceedings of the American Philological Association  
M low-wide a low-wide 5 low-wide fe low-narrow i low-narrow 3 low-narrow MIXED. e mid-wide ih low-wide o mid-wide e rpid-narrow eh low-narrow 6 mid-narrow i high-wide ih high-wide i high-wide i high-narrow  ...  The following are parallel with the passage from Suet.  ... 
doi:10.2307/282604 fatcat:wy2fqzqfbnh33clvnjw26bntd4

Dynamic selection for maximizing response with constrained inbreeding in schemes with overlapping generations

B. Grundy, B. Villanueva, J. A. Woolliams
2000 Animal Science  
AbstractA dynamic selection algorithm for maximizing annual genetic response while constraining the rate of inbreeding per generation in populations with overlapping generations is presented.  ...  C;or~ion for help with st,itisticcil an'llysis.  ...  We hn\,e benefited grc<>tl) Crorn disc~~ssions with ~nelnhers of thc IiUMlNT consortium and partic~l~lrly M'lrgnret Cill, John Cnygill ancl Llavid C;drwes.  ... 
doi:10.1017/s1357729800051717 fatcat:74du6oiawfeq3gd2hec5noedf4

The comparative reproductive styles of two closely related African minnows (Pseudobarbus afer and P. asper) inhabiting two different sections of the Gamtoos River system [chapter]

Jim A. Cambray
1994 Women in ichthyology: an anthology in honour of ET, Ro and Genie  
P. afer and P. asper are non-guarders of their non-adhesive eggs and young, open substrate spawners on coarse substrates (rocks) and have photophobic free embryos.  ...  P. afer and P. asper occur in the Gamtoos River system with no physical barrier separating the two species.  ...  The non-adhesive, negatively-buoyant eggs need to be spawned in areas that are cleaned and aerated by water currents.  ... 
doi:10.1007/978-94-011-0199-8_20 fatcat:yjto7dqngnb2xixtw43k5btmnu

Fecha, modalidades y legado de la abdicación de la dictadura de Sila. Un estudio de la política siliana

Frederik J. VERVAET
2018 Studia Historica: Historia Antigua  
A parallel can, 62. HINARD, 1999 , 430f. 63.  ...  His attested anxiety that a ranking (ed.  ... 
doi:10.14201/shha2018363182 fatcat:yvimetuplrhh3jt4ymquj7u3je

The spatial distribution of soil salinity: Detection and prediction

Manfred Denich, Christopher Martius, Charles Rodgers, Nick Van De Giesen, Akmal Akramkhanov, Verlag Cuvillier, Göttingen
2005 Ecology and Development Series   unpublished
Soil salinity was measured by four electrical conductivity (EC) devices (2XP, 2P, 4P, and CM-138) on a regular grid covering an area of approximately 3 km by 4 km.  ...  Correlation between distance to drains and salinity of the topsoil was low, which might be due to higher spatial variation of the topsoil salinity.  ...  Having said all the above, there is a constraint to keep in mind. The study area consists of flat alluvial plains with low potential energy for driving water flow (Abdullaev, 2002) .  ... 

Aalborg Universitet Radio Resource Management for Ultra-Reliable Low-Latency Communications in 5G

Guillermo Gerardino, Pocovi
Ideal CC with effi- ciency = 100% and non-ideal CC with efficiency = 80 % Transmission mode 2x2 closed loop with rank adaptation Small cell path loss ITU-R UMi [12] eNB packet scheduler Proportional  ...  amount of non- • Ultra-Reliable Low-Latency Communications (URLLC) entail the transmission of sporadic and small packets, with low latency (1 ms) and very high reliability (99.999%).  ...  What makes the topic very challenging from a radio perspective is the required reliability and latency constraints, never seen before in cellular systems [1] .  ... 

Implementable multi-dimensional inverse scattering theory [article]

David Guan Hock Tan, University Of Canterbury
Several original contributions (developed in association with others) to branches of inverse theory are presented.  ...  A generalised volume source formulation of scattering/diffraction is developed; it is shown to lead to a sequence of useful approx­imate formulations which are potentially suitable bases for inversion  ...  Each refractive index is real and non-negative but is otherwise arbitrary.  ... 
doi:10.26021/10417 fatcat:ln6ijvhyufdobk6kzglgs5262y

Towards an Intelligent Learning Environment for Melody Composition Through Formalisation of Narmour's Implication-Realisation Model

Matthew Richard Smith
The second stage o f the research involved extending the parser with constraint-based generation techniques.  ...  This thesis describes research with the ultimate goal o f finding ways to use artificial intelligence (AI) to encourage and facilitate melody composition by musical novices.  ...  There appears to be a problem with the existence of retrospective duplication as a low-level structure.  ... 
doi:10.21954/ fatcat:oj6mrdkwpjdirnca323hj5i4dm
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