Publications - Mattias Ohlsson

Refereed articles:

Automated Quantitative Bone Scan Analysis
R. Kaboteh, M. Sadik, M. Suurkula, M. Lomsky, P. Gjertsson, J. Richter, K. Sjöstrand, M. Ohlsson and L. Edenbrandt
LU TP 09-06

Exploring new possibilities for case based explanation of artificial neural network ensembles
M. Green, U. Ekelund, L. Edenbrandt, J. Björk, J. L. Foreberg and M. Ohlsson
Neural Networks 22, 75-81 (2009)
[ abstract ] [ pdf at journal ]

In search of the best method to predict acute coronary syndrome using only the electrocardiogram from the emergency department
J. L. Foreberg, M. Green, J. Björk, M. Ohlsson, L. Edenbrandt, H. Öhlin and U. Ekelund
Journal of Electrocardiology 42, 58-63 (2009)
[ abstract ] [ pdf at journal ]

Computer-Assisted Interpretation of planar whole-body bone scans
M. Sadik, I. Hamadeh, P. Nordblom, M. Suurkula, P. Höglund, M. Ohlsson and L. Edenbrandt
The Journal of Nuclear Medicine 49, 1958-1965 (2008)
[ abstract ] [ pdf at journal ]

Evaluation of a decision support system for interpretation of myocardial perfusion gated SPECT
M. Lomsky, P. Gjertsson, L. Johansson, J. Richter, M. Ohlsson, D. Tout, R. S. Underwood and L. Edenbrandt
European Journal of Nuclear Medicine and Molecular Imaging 35, 1523-1529 (2008)
[ abstract ] [ pdf at journal ]

Genetic Distinction of Gastroesophageal Junction Tumors: combined analysis using expression array and tiling array-CGH
A. Isinger, J. Johansson, M. Ohlsson, P. Francis, A. Laurell, J. Staaf, Å. Borg and M. Nilbert
LU TP 07-01

Best leads in the standard electrocardiogram for the emergency detection of acute coronary syndrome
M. Green, M. Ohlsson, J. L. Forberg, J. Björk, L. Edenbrandt and U. Ekelund
Journal of Electrocardiology 40, 251-256 (2007)
[ abstract ] [ pdf at journal ]

Automated Interpretation of PET/CT images in Patients with Lung Cancer
H. Gutte, D. Jakobsson, F. Olofsson, M. Ohlsson, S. Valind, A. Loft, L. Edenbrandt and A. Kjær
Nuclear Medicine Communications 28, 79-84 (2007)
[ abstract ] [ pdf at journal ]

Gene expression profilers and conventional clinical markers to predict distant recurrences for premenopausal breast cancer patients after adjuvant chemotherapy (CMF)
E. Niméus-Malmström, C. Ritz, P. Edén, A. Johnsson, M. Ohlsson, C. Strand, G. Östberg, M. Fernö and C. Peterson
European Journal of Cancer 42, 2729-2737 (2006)
[ abstract ] [ pdf at journal ]

Comparison between neural networks and multiple logistic regression to predict acute coronary syndrome in the emergency room
M. Green, J. Björk, J. Forberg, U. Ekelund, L. Edenbrandt and M. Ohlsson
Artificial Intelligence in Medicine 38, 305-318 (2006)
[ abstract ] [ pdf at journal ]

The added value of ECG-gating for the diagnosis of myocardial infarction using myocardial perfusion scintigraphy and artificial neural networks
P. Gjertsson, M. Lomsky, J. Richter, M. Ohlsson, D. Tout, A. van Aswegen, R. Underwood and L. Edenbrandt
Clinical Physiology and Functional Imaging 26, 301-304 (2006)
[ abstract ] [ pdf at journal ]

A simple statistical model for prediction of acute coronary syndrome in chest pain patients in the emergency department
J. Björk, J. L. Forberg, M. Ohlsson, L. Edenbrandt, H. Öhlin and U. Ekelund
BMC Medical Informatics and Decision Making 6, (2006)
[ abstract ] [ pdf at journal ]

Risk factor identification and mortality prediction in cardiac surgery using artificial neural networks
J. Nilsson, M. Ohlsson, L. Thulin, P. Höglund, S.A. Nashef and J. Brandt
The Journal of Thoracic and Cardiovascular Surgery 132, 12-19 (2006)
[ abstract ] [ pdf at journal ]

Patient gender and radiopharmaceutical tracer is of minor importance for the interpretation of myocardial perfusion images using an artificial neural network
K. Tägil, R. S. Underwood, G. Davies, K. A. Latus, M. Ohlsson, C. Wallin and L. Edenbrandt
Clinical Physiology and Functional Imaging 26, 146-150 (2006)
[ abstract ] [ pdf at journal ]

A new computer-based decision-support system for the interpretation of bone scans
M. Sadik, D. Jakobsson, F. Olofsson, M. Ohlsson, M. Suurkula and L. Edenbrandt
Nuclear Medicine Communications 27, 417-423 (2006)
[ abstract ] [ pdf at journal ]

Decision support for the initial triage of patients with acute myocardial infarction
S-E. Olsson, M. Ohlsson, H. Öhlin, S. Dzaferagic, M-L. Nilsson, P. Sandkull and L. Edenbrandt
Clinical Physiology and Functional Imaging 26, 151-156 (2006)
[ abstract ] [ pdf at journal ]

Toward Personal eHealth in Cardiology. Results From the EPI-MEDICS Telemedicine project
P. Rubel, J. Fayn, G. Nollo, D. Assanelli, B. Li, L. Restier, S. Adami, S. Arod, H. Atoui, M. Ohlsson, L. Simon-Chautemps, D. Telisson, C. Malossi, G-L. Ziliani, A. Galassi, L. Edenbrandt and P. Chevalier
Journal of Electrocardiology 38, 100-106 (2005)
[ abstract ] [ pdf at journal ]

Interpretation of Captopril Renography Using Artificial Neural Networks
M. Nielsen, G. Granerus, M. Ohlsson, H. Holst, O. Thorsson and L. Edenbrandt
Clinical Physiology and Functional Imaging 25, 293-296 (2005)
[ abstract ] [ pdf at journal ]

Regional Cerebral Blood Flow in Alzheimer´s Disease: Classification and Analysis of Heterogeneity
S. Warkentin, M. Ohlsson, P. Wollmer, L. Edenbrandt and L. Minthon
Dementia and Geriatric Cognitive Disorders 17, 204-217 (2004)
[ abstract ] [ pdf at journal ]

WeAidU - A Decision Support System for Myocardial Perfusion Images Using Artificial Neural Networks
M. Ohlsson
Artificial Intelligence in Medicine 30, 49-60 (2004)
[ abstract ] [ pdf at journal ]

A Fuzzy Matching Approach to Multiple Structure Alignment of Proteins
H. Haraldsson and M. Ohlsson
LU TP 03-17
[ abstract ]

Detecting Acute Myocardial Infarction in the 12-lead ECG using Hermite Expansions and Neural Networks
H. Haraldsson, L. Edenbrandt and M. Ohlsson
Artificial Intelligence in Medicine 32, 127-136 (2004)
[ abstract ] [ pdf at journal ]

Matching Protein Structures with Fuzzy Alignments
R. Blankenbecler, M. Ohlsson, C. Peterson and M. Ringnér
Proceedings of the National Academy of Sciences 100, 11936-11940 (2003)
[ abstract ] [ pdf at journal ]

Role of Ventilation Scintigraphy in Diagnosis of Acute Pulmonary Embolism: An Evaluation Using Artificial Neural Networks
E. Evander, H. Holst, A. Järund, M. Ohlsson, P. Wollmer, K. Åström and L. Edenbrandt
European Journal of Nuclear Medicine and Molecular Imaging 30, 961-965 (2003)
[ abstract ] [ pdf at journal ]

Neural Networks - a Diagnostic Tool in Acute Myocardial Infarction with Concomitant Left Bundle Branch Block
S-E. Olsson, M. Ohlsson, H. Öhlin and L. Edenbrandt
Clinical Physiology and Functional Imaging 22, 295-299 (2002)
[ abstract ] [ pdf at journal ]

A Novel Approach to Local Reliability of Sequence Alignments
M. Schlosshauer and M. Ohlsson
Bioinformatics 18, 847-854 (2002)
[ abstract ] [ pdf at journal ]

Value of Exercise Data for the Interpretation of Myocardial Perfusion SPECT
H. Haraldsson, M. Ohlsson and L. Edenbrandt
Journal of Nuclear Medicine 9, 169-173 (2002)
[ abstract ] [ pdf at journal ]

Usefulness of Serial Electrocardiograms for Diagnosis of Acute Myocardial Infarction
M. Ohlsson, H. Öhlin, S. Wallerstedt and L. Edenbrandt
The American Journal of Cardiology 88, 478-481 (2001)
[ abstract ] [ pdf at journal ]

The Optimal Reference Population for Cardiac Normality in Myocardial SPECT in the Detection of Coronary Artery Stenoses: Patients with Normal Coronary Angiography or Subjects with Low Likelihood of Coronary Artery Disease?
J.C. Toft, D. Lindahl, M. Ohlsson, J. Palmer, A. Lundin, L. Edenbrandt and B. Hesse
European Journal of Nuclear Medicine 28, 831-835 (2001)
[ abstract ] [ pdf at journal ]

An Efficient Mean Field Approach to the Set Covering Problem
M. Ohlsson, C. Petersen and B. Söderberg
The European Journal of Operations Research 133, 583-595 (2001)
[ abstract ] [ pdf ] [ pdf at journal ]

An Independent Evaluation of a New Method for Automated Interpretation of Lung Scintigrams Using Artificial Neural Networks
H. Holst, K. Måre, A. Järund, K. Åström, E. Evander, K. Tägil, M. Ohlsson and L. Edenbrandt
European Journal of Nuclear Medicine 28, 33-38 (2001)
[ abstract ] [ pdf at journal ]

A Confident Decision Support System for Interpreting Electrocardiograms
H. Holst, M. Ohlsson, C. Peterson and L. Edenbrandt
Clinical Physiology 19, 410-418 (1999)
[ abstract ] [ pdf ] [ pdf at journal ]

Intelligent Computer Reporting "Lack of Experience": - a Confidence Measure for Decision Support Systems
H. Holst, M. Ohlsson, C. Peterson and L. Edenbrandt
Clinical Physiology 18, 139-147 (1998)
[ abstract ] [ full text at journal ]

Automated Interpretation of Myocardial SPECT Perfusion Images Using Artificial Neural Networks
D. Lindahl, J. Palmer, M. Ohlsson, C. Peterson, A. Lundin and L. Edenbrandt
Journal of Nuclear Medicine 38, 1870-1875 (1997)
[ abstract ] [ pdf ]

A Study of the Mean Field Approach to Knapsack Problems
M. Ohlsson and H. Pi
Neural Networks 10, 263-271 (1997)
[ abstract ] [ pdf ] [ pdf at journal ]

Detection of Frequently Overlooked Electrocardiographic Lead Reversals Using Artificial Neural Networks
B. Hedén, M. Ohlsson, H. Holst, M. Mjöman, O. Pahlm, R. Rittner, C. Peterson and L. Edenbrandt
The American Journal of Cardiology 78, 600-604 (1996)
[ abstract ] [ pdf ] [ pdf at journal ]

Agreement Between Artificial Neural Networks and Experienced Electrocardiographer on Electrocardiographic Diagnosis of Healed Myocardial Infarction
B. Hedén, M. Ohlsson, R. Rittner, O. Pahlm, W.K. Haisty, C. Petersen and L. Edenbrandt
Journal of the American College of Cardiology 28, 1012-1016 (1996)
[ abstract ] [ pdf ] [ pdf at journal ]

Artificial Neural Networks for Recognition of Electrocardiographic Lead Reversal
B. Hedén, M. Ohlsson, L. Edenbrandt, R. Rittner, O. Pahlm and C. Petersen
The American Journal of Cardiology 75, 929-933 (1995)
[ abstract ] [ pdf ] [ pdf at journal ]

Finite-Size Scaling at Phase Coexistence
S. Gupta, A. Irbäck and M. Ohlsson
Nuclear Physics B409, 663-683 (1993)
[ abstract ] [ pdf ] [ pdf at journal ]

Extensions and Explorations of the Elastic Arms Algorithm
M. Ohlsson
Computer Physics Communications 77, 19-32 (1993)
[ abstract ] [ pdf ] [ pdf at journal ]

Neural Networks for Optimization Problems with Inequality Constraints: The Knapsack Problem
M. Ohlsson, C. Petersen and B. Söderberg
Neural Computation 5, 331-339 (1993)
[ abstract ] [ pdf ]

Track Finding with Deformable Templates - The Elastic Arms Approach
M. Ohlsson, C. Peterson and A. Yuille
Computer Physics Communications 71, 77-98 (1992)
[ abstract ] [ pdf ] [ pdf at journal ]

Conference proceedings:

Explaining artificial neural network ensembles: A case study with electrocardiograms from chest pain patients
M. Green, U. Ekelund, L. Edenbrandt, J. Björk, J. L. Foreberg and M. Ohlsson
In Proceedings of the 25th International Conference on Machine Learning
(eds. M. Hauskrecht)
(2008)
[ abstract ] [ pdf ]

Comparison of standard resampling methods for performance estimation of artificial neural network ensembles
M. Green and M. Ohlsson
In Proceedings of Computational Intelligence in Medicine and Healthcare (CIMED)
(eds. E. Ifeachor)
(2007)
[ abstract ] [ pdf ]

Detection of acute coronary syndromes in chest pain patients using neural network ensembles
M. Green, J. Björk, J. Hansen, U. Ekelund, L. Edenbrandt and M. Ohlsson
In Proceedings of Computational Intelligence in Medicine and Healthcare (CIMED)
pp. 182-187 (2005)
[ abstract ] [ pdf ]

Protein structure alignment using mean field annealing
M. Ohlsson
In Proceedings of the WSEAS International Conference on Mathematical Biology and Ecology
paper no. 488-208 (2004)
[ abstract ] [ pdf ]

New Paradigms in Telemedicine: Ambient Intelligence, Wearable, Pervasive and Personalized
Paul Rubel, J. Fayn, L. Simon-Chautemps, H. Atoui, M. Ohlsson, D. Telisson, S. Adami, S. Arod, M. C. Forlini, C. Malossi, J. Placide, G. L. Ziliani, D. Assanelli and P. Chevalier
In Studies in Health Technology and Informatics 108
(eds. A. Lymberis and D. de Rossi)
pp. 123-132 (2004)
[ abstract ] [ pdf at journal ]

Pervasive self-care solutions in telecardiology. Typical use cases from the EPI-MEDICS project
F. Gouaux, L.S. Chautemps, J. Fayn, S. Adami, M. Arzi, D. Assanelli, M.C. Forlini, C. Malossi, A. Martinez, M. Ohlsson, J. Placide, G.L. Ziliani and P. Rubel
In Studies in Health Technology and Informatics 95
(eds. R. Baud, M. Fieschi, P. Le Beux and P. Ruch)
pp. 119-124 (2003)
[ abstract ]

Using Hidden Markov Models to Characterize Disease Trajectories
M. Ohlsson, C. Peterson and M. Dictor
In Proceedings of the Neural Networks and Expert Systems in Medicine and Healthcare Conference
(eds. G.M. Papadourakis)
pp. 324-326 (2001)
[ abstract ] [ pdf ]

Case-Based Sensitivity Analysis for Artificial Neural Networks with Applications in Medicine
M. Ohlsson and L. Edenbrandt
In Proceedings of the Neural Networks and Expert Systems in Medicine and Healthcare Conference
(eds. G.M. Papadourakis)
pp. 102-106 (2001)
[ abstract ] [ pdf ]

A New Artificial Neural Network Method for the Interpretation of ECGs
H. Holst, L. Edenbrandt, M. Ohlsson and H. Öhlin
In Proceedings of the Artificial Neural Networks in Medicine and Biology Conference
(eds. H. Malmgren, M. Borga and L. Niklasson)
pp. 186-191 (2000)

Acute Myocardial Infarction: Analysis of the ECG Using Artificial Neural Networks
M. Ohlsson, H. Holst and L. Edenbrandt
In Proceedings of the Artificial Neural Networks in Medicine and Biology Conference
(eds. H. Malmgren, M. Borga and L. Niklasson)
pp. 209-214 (2000)
[ abstract ] [ pdf ]

Internet Based Artificial Neural Networks for the Interpretation of Medical Images
A. Järund, L. Edenbrandt, M. Ohlsson and E. Borälv
In Proceedings of the Artificial Neural Networks in Medicine and Biology Conference
(eds. H. Malmgren, M. Borga and L. Niklasson)
pp. 87-92 (2000)
[ abstract ] [ pdf ]

WWW Based Service for Automated Interpretation of Diagnostic Images: The AIDI-Heart Project
M. Ohlsson, A. Järund and L. Edenbrandt
In Proceedings of High-Performance Computing and Networking
(eds. P. Sloot, M. Bubak, A. Hoekstra and B. Hertzberger)
pp. 941-950 (1999)
[ abstract ] [ pdf ]

Active Surface Models for Brain Imaging
M. Ohlsson, P. Toft, L. K. Hansen and F. Å. Nielsen
In Proceedings of the Interdisciplinary Inversion Workshop 5
(eds. B. H. Jacobsen)
pp. 68-77 (1997)
[ abstract ] [ pdf ]

Design and Regularization of Neural Networks: The Optimal Use of A Validation Set
J. Larsen, L.K. Hansen, C. Svarer and M. Ohlsson
In Proceedings of the IEEE Workshop on Neural Networks for Signal Processing VI
(eds. S. Usui, Y. Tohkura, S. Katagiri and E. Wilson)
pp. 62-71 (1996)
[ abstract ] [ pdf ] [ pdf at journal ]

Misplacement of the Left Foot ECG Electrode Detected by Artificial Neural Networks
B. Hedén, M. Ohlsson, R. Rittner, O. Pahlm, C. Peterson and L. Edenbrandt
In Computers in Cardiology
pp. 225-228 (1995)
[ abstract ] [ pdf ] [ pdf at journal ]

Predicting System Loads with Artificial Neural Networks - Methods and Results from the "Great Energy Predictor Shootout"
M. Ohlsson, C. Petersen, H. Pi, T. Rögnvaldsson and B. Söderberg
In 1994 Annual Proceedings of the American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. 100
pp. 1063-1074 (1994)
[ abstract ] [ pdf ]

Unpublished reports:

A New Learning Scheme for Neural Network Ensembles
H. Haraldsson and M. Ohlsson
LU TP 02-04 (2002)
[ abstract ] [ pdf ]

A Novel Approach to Structure Alignment
M. Ohlsson, M. Rignér, C. Peterson and R. Blankenbecler
LU TP 00-07 (2000)
[ abstract ] [ pdf ]

High Specificity - a Necessity for Automated Detection of Lead Reversals in the 12-lead ECG
M. Ohlsson, B. Hedén and L. Edenbrandt
LU TP 99-24 (1999)
[ abstract ] [ pdf ]

Clustering Noisy Data with Deterministic Annealing
M. Ohlsson
LU TP 93-28 (1993)
[ abstract ] [ pdf ]

Thesis:

Artificial Neural Networks and Combinatorial Optimization
Mattias Ohlsson
Department of Theoretical Physics, Lund University, Sweden, 1995