P.S. Lewis

3.2k citations

55 papers · 2.0k indexed · 2 hit papers · h-index 15

Impact in

Signal Processing top 1%
- Blind Source Separation Techniques
- Speech and Audio Processing
- Direction-of-Arrival Estimation Techniques
Cognitive Neuroscience top 2%
- Neural dynamics and brain function
- Functional Brain Connectivity Studies
- EEG and Brain-Computer Interfaces

Papers in

Signal Processing 23
- Blind Source Separation Techniques 20
- Speech and Audio Processing 11
- Direction-of-Arrival Estimation Techniques 9
Computational Mechanics 15
- Advanced Adaptive Filtering Techniques 12
- Sparse and Compressive Sensing Techniques 3

Co-authors: John C. Mosher Richard M. Leahy Michael E. Spencer Sun‐Yuan Kung Patricia A. Medvick Edward R. Flynn Y.C. Lee R.D. Jones
Journals: Electroencephalography and Clinical Neurophysiology (2 papers)Review of Scientific Instruments (2 papers)IEEE Transactions on Biomedical Engineering (2 papers)Law & Society Review (1 paper)The American Historical Review (1 paper)
Partner nations: United States Germany France

In The Last Decade

P.S. Lewis

50 papers receiving 1.9k citations

Hit Papers

align trajectories log scale

EEG and MEG: forward solutions for inverse methods 1999 · 578 citations

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if any of the following hold:

it has ≥500 total citations;
it reaches ≥1.5× the top-1% citation threshold for papers in the same subfield and year (the threshold is the minimum needed to enter the top 1%, not the average within it);
it reaches the top citation threshold in at least one of its specific research topics.

1999 IEEE Transactions on Biomedical Engineering
1992 IEEE Transactions on Biomedical Engineering

Peers

Countries citing papers authored by P.S. Lewis

Since Specialization

Citations

This map shows the geographic impact of P.S. Lewis's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by P.S. Lewis with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites P.S. Lewis more than expected).

Fields of papers citing papers by P.S. Lewis

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by P.S. Lewis. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by P.S. Lewis. The network helps show where P.S. Lewis may publish in the future.

Co-authorship network

The 25 scholars most cited alongside P.S. Lewis, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with P.S. Lewis Line = papers co-authored together P.S. Lewis links everyone, so they are left out of the graph.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

#	Work
1	Algorithms and architectures for adaptive least squares signal processing, with applications in magnetoencephalography University of Southern California Digital Library ·P.S. Lewis	2015	0
2	Adaptive filters for monitoring localized brain activity from surface potential time series Michael E. Spencer, Richard M. Leahy, John C. Mosher, P.S. Lewis	2003	30
3	Adaptive enhancement of magnetoencephalographic signals via multichannel filtering International Conference on Acoustics, Speech, and Signal Processing ·P.S. Lewis	2003	1
4	Matrix kernels for MEG and EEG source localization and imaging John C. Mosher, Richard M. Leahy, P.S. Lewis	2002	11
5	Taylor series expansion and modified extended Prony analysis for localization John C. Mosher, P.S. Lewis	2002	1
6	Neuromagnetic source reconstruction P.S. Lewis, John C. Mosher, Richard M. Leahy	2002	4
7	EEG and MEG: forward solutions for inverse methods IEEE Transactions on Biomedical Engineering ·John C. Mosher, Richard M. Leahy, P.S. Lewis Hit paper breakdown →	1999	578
8	A direct current superconducting quantum interference device gradiometer with a digital signal processor controlled flux-locked loop and comparison with a conventional analog feedback scheme Review of Scientific Instruments ·P. J. Kung, S. Celaschi, E.R. Flynn, P.S. Lewis	1996	3
9	Error bounds for EEG and MEG dipole source localization Electroencephalography and Clinical Neurophysiology ·John C. Mosher, Michael E. Spencer, Richard M. Leahy, P.S. Lewis	1993	179
10	Biomagnetic localization from transient quasi-static events IEEE International Conference on Acoustics Speech and Signal Processing ·John C. Mosher, Richard M. Leahy, P.S. Lewis	1993	5
11	Multiple dipole modeling and localization from spatio-temporal MEG data IEEE Transactions on Biomedical Engineering ·John C. Mosher, P.S. Lewis, Richard M. Leahy Hit paper breakdown →	1992	763
12	A neuromagnetic study of selective auditory attention Electroencephalography and Clinical Neurophysiology ·Arda Talia, P.S. Lewis, Patricia A. Medvick, Edward R. Flynn	1991	53
13	An optimal systolic array for the algebraic path problem IEEE Transactions on Computers ·P.S. Lewis, Sun‐Yuan Kung	1991	11
14	Systolic architectures for adaptive multichannel least squares lattice filters The Journal of VLSI Signal Processing Systems for Signal Image and Video Technology ·P.S. Lewis	1990	2
15	Magnetoencephalography IEEE Potentials ·P.S. Lewis, J. George	1990	6
16	<title>Recursive least-squares learning algorithms for neural networks</title> Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE ·P.S. Lewis, Sabrina Van Der Smissen	1990	8
17	TIMING ANALYSIS AND DESIGN OPTIMIZATION OF VLSI DATA FLOW ARRAYS. Proceedings of the International Conference on Parallel Processing ·Sun‐Yuan Kung, Katharine C. Staley, P.S. Lewis	1986	9
18	Later Medieval France Palgrave Macmillan UK eBooks ·P.S. Lewis	1968	20
19	War Propaganda and Historiography in Fifteenth-Century France and England Transactions of the Royal Historical Society ·P.S. Lewis	1965	8
20	THE FAILURE OF THE FRENCH MEDIEVAL ESTATES Past & Present ·P.S. Lewis	1962	8

About P.S. Lewis

P.S. Lewis is a scholar working on Signal Processing, Computational Mechanics, History and Philosophy of Science, Classics and Radiation, having authored 55 papers that have together received 2.0k indexed citations. Recurring topics across this work include Blind Source Separation Techniques (20 papers), Advanced Adaptive Filtering Techniques (12 papers), Speech and Audio Processing (11 papers), Direction-of-Arrival Estimation Techniques (9 papers), Control Systems and Identification (5 papers), Advanced MRI Techniques and Applications (4 papers), Sparse and Compressive Sensing Techniques (3 papers) and Historical Studies and Socio-cultural Analysis (3 papers). The work is most often cited by research in Signal Processing (730 citations), Cognitive Neuroscience (1.1k citations), Radiology, Nuclear Medicine and Imaging (422 citations), Computational Mechanics (250 citations) and Computational Mathematics (6 citations). P.S. Lewis has collaborated with scholars based in United States, Germany and France. Frequent co-authors include John C. Mosher, Richard M. Leahy, Michael E. Spencer, Sun‐Yuan Kung, Patricia A. Medvick, Edward R. Flynn, Y.C. Lee, R.D. Jones, Gary William Flake and Cris W. Barnes. Their work appears in journals such as Electroencephalography and Clinical Neurophysiology, Review of Scientific Instruments, IEEE Transactions on Biomedical Engineering, Law & Society Review and The American Historical Review.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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