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Sparse Matrix
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linear programming problem, C. Meszaros test set

Size: 58866x62716
Nonzeros: 320591

Kind: Linear Programming Problem
Author: N/A
Date: 2004
Link: https://sparse.tamu.edu/Meszaros/rlfprim
linear programming problem, C. Meszaros test set

Size: 50x6774
Nonzeros: 61555

Kind: Linear Programming Problem
Author: N/A
Date: 2004
Link: https://sparse.tamu.edu/Meszaros/air02
Netlib LP problem scagr25: minimize c'*x, where Ax=b, lo<=x<=hi

Size: 471x671
Nonzeros: 1725

Kind: Linear Programming Problem
Author: J. Ho, E. Loute
Date: 1981
Link: https://sparse.tamu.edu/LPnetlib/lp_scagr25
UNSYMMETRIC FACSIMILE CONVERGENCE MATRIX

Size: 183x183
Nonzeros: 1069

Kind: Subsequent 2D/3D Problem
Author: A. Curtis
Date: 1983
Link: https://sparse.tamu.edu/HB/fs_183_3
Netlib LP problem ex73a: minimize c'*x, where Ax=b, lo<=x<=hi

Size: 193x211
Nonzeros: 457

Kind: Linear Programming Problem
Author: Z. You
Date: 1992
Link: https://sparse.tamu.edu/LPnetlib/lpi_ex73a
IBM TJ Watson, non-linear optimization

Size: 57975x57975
Nonzeros: 530583

Kind: Subsequent Optimization Problem
Author: IBM
Date: 2006
Link: https://sparse.tamu.edu/Schenk_IBMNA/c-67b
DIMACS10 set: random/rgg_n_2_23_s0

Size: 8388608x8388608
Nonzeros: 127002786

Kind: Undirected Random Graph
Author: M. Holtgrewe, P. Sanders, C. Schulz
Date: 2011
Link: https://sparse.tamu.edu/DIMACS10/rgg_n_2_23_s0
Web matrix (Numerical Computing with MATLAB, Moler, 2004)

Size: 500x500
Nonzeros: 2636

Kind: Directed Graph
Author: C. Moler
Date: 2002
Link: https://sparse.tamu.edu/MathWorks/Harvard500
U SIMPLE CHEMICAL PLANT MODEL ( CHEM. ENG. FROM A. WESTERBERG )

Size: 156x156
Nonzeros: 362

Kind: Chemical Process Simulation Problem
Author: A. Westerberg
Date: 1983
Link: https://sparse.tamu.edu/HB/west0156
Jacobian from CEPII's 'G7marmotte' OLG model, oldstack 020

Size: 5850x5850
Nonzeros: 42568

Kind: Economic Problem
Author: P. Hollinger
Date: 2001
Link: https://sparse.tamu.edu/Hollinger/g7jac020
Olaf Schenk, Univ. Basel: Integrated Systems Eng., San Jose, semiconductor device

Size: 181343x181343
Nonzeros: 6869939

Kind: Semiconductor Device Problem
Author: Integrated Sys. Eng.
Date: 2003
Link: https://sparse.tamu.edu/Schenk_ISEI/ohne2
semiconductor device simulation, Johann Rost, Politehnia Univ., Bucharest

Size: 74104x74104
Nonzeros: 365580

Kind: Semiconductor Device Problem
Author: J. Rost
Date: 2007
Link: https://sparse.tamu.edu/Rost/RFdevice
Gnutella peer to peer network from August 5 2002

Size: 8846x8846
Nonzeros: 31839

Kind: Directed Graph
Author: M. Ripeanu and I. Foster and A. Iamnitchi
Date: 2002
Link: https://sparse.tamu.edu/SNAP/p2p-Gnutella05
machine learning graph: Vehicle_10NN

Size: 846x846
Nonzeros: 10894

Kind: Undirected Weighted Graph
Author: D. Pasadakis, C.L. Alappat, O. Schenk, G. Wellein
Date: 2020
Link: https://sparse.tamu.edu/ML_Graph/Vehicle_10NN
Netlib LP problem grow15: minimize c'*x, where Ax=b, lo<=x<=hi

Size: 300x645
Nonzeros: 5620

Kind: Linear Programming Problem
Author: R. Fourer
Date: 1983
Link: https://sparse.tamu.edu/LPnetlib/lp_grow15
Pajek network: High Energy Physics literature

Size: 27240x27240
Nonzeros: 342437

Kind: Directed Graph
Author: KDD Cup 2003
Date: 2003
Link: https://sparse.tamu.edu/Pajek/HEP-th
Cohomology of various rings, from Matthias Franz, Univ. Konstanz, Germany

Size: 6784x5252
Nonzeros: 46528

Kind: Combinatorial Problem
Author: M. Franz
Date: 2008
Link: https://sparse.tamu.edu/JGD_Franz/Franz4
3D transient electromagnetic modelling, S. Guettel, Univ Manchester

Size: 152078x152078
Nonzeros: 6459326

Kind: Electromagnetics Problem
Author: R.-U. B\"orner, O. G. Ernst, S. G\"uttel
Date: 2015
Link: https://sparse.tamu.edu/Guettel/TEM152078
Netlib LP problem woodinfe: minimize c'*x, where Ax=b, lo<=x<=hi

Size: 35x89
Nonzeros: 140

Kind: Linear Programming Problem
Author: H. Greenberg
Date: 1989
Link: https://sparse.tamu.edu/LPnetlib/lpi_woodinfe
U JOHN G. LEWIS P4 COUNTEREXAMPLE WHICH REQUIRES FILL IN SPIKES

Size: 9x9
Nonzeros: 50

Kind: Counter Example Problem
Author: J. Lewis
Date: 1983
Link: https://sparse.tamu.edu/HB/jgl009
machine learning graph: Binaryalphadigs_10NN

Size: 1404x1404
Nonzeros: 19392

Kind: Undirected Weighted Graph
Author: D. Pasadakis, C.L. Alappat, O. Schenk, G. Wellein
Date: 2020
Link: https://sparse.tamu.edu/ML_Graph/Binaryalphadigs_10NN
Chemical process separation, Steve Zitney, Cray Research

Size: 3198x3198
Nonzeros: 56834

Kind: Chemical Process Simulation Problem
Author: S. Zitney
Date: 1992
Link: https://sparse.tamu.edu/Zitney/rdist2
Simplicial complexes from Homology from Volkmar Welker.

Size: 423360x317520
Nonzeros: 2540160

Kind: Combinatorial Problem
Author: V. Welker
Date: 2008
Link: https://sparse.tamu.edu/JGD_Homology/ch7-9-b5
Sandia/fpga_dcop_24 circuit simulation matrix. Sandia National Lab.

Size: 1220x1220
Nonzeros: 5892

Kind: Subsequent Circuit Simulation Problem
Author: R. Hoekstra
Date: 2003
Link: https://sparse.tamu.edu/Sandia/fpga_dcop_24
Random matrix, 1% uniformly distributed. G26=pattern of G31

Size: 2000x2000
Nonzeros: 39980

Kind: Undirected Weighted Random Graph
Author: C. Helmberg
Date: 1996
Link: https://sparse.tamu.edu/Gset/G31