default search action
Google
Google Scholar
Semantic Scholar
Internet Archive Scholar
CiteSeerX
ORCIDHélio M. de Oliveira
Person information
- affiliation: Federal University of Pernambuco, Recife, Brazil
Refine list
refinements active!
zoomed in on ?? of ?? records
view refined list in
export refined list as
2020 – today
- 2022
[j5]Hélio M. de Oliveira
, Raydonal Ospina, Víctor Leiva, Carlos Martín-Barreiro, Christophe Chesneau:
A New Wavelet-Based Privatization Mechanism for Probability Distributions. Sensors 22(10): 3743 (2022)- 2021
- [i53]Hélio M. de Oliveira, Renato J. Cintra:
Geometrical Representation for Number-theoretic Transforms. CoRR abs/2103.04832 (2021) - 2020
- [j4]Hélio M. de Oliveira, Victor Vermehren Valenzuela, Renato J. Cintra:
Multi-dimensional wavelets for scalable image decomposition: Orbital wavelets. Int. J. Wavelets Multiresolution Inf. Process. 18(5): 2050038:1-2050038:11 (2020) - [i52]Ernande F. Melo, Hélio Magalhães de Oliveira:
An Overview of Self-Similar Traffic: Its Implications in the Network Design. CoRR abs/2005.02858 (2020) - [i51]Hélio M. de Oliveira, Victor Vermehren Valenzuela, Renato J. Cintra:
Multidimensional Wavelets for Scalable Image Decomposition: Orbital Wavelets. CoRR abs/2006.07920 (2020) - [i50]R. M. Campello de Souza, M. M. Campello de Souza, Hélio Magalhães de Oliveira, M. M. Vasconcelos:
Infinite Sequences, Series Convergence and the Discrete Time Fourier Transform over Finite Fields. CoRR abs/2007.10816 (2020) - [i49]Renato J. Cintra, Hélio M. de Oliveira, C. O. Cintra:
Rounded Hartley Transform: A Quasi-involution. CoRR abs/2008.03379 (2020)
2010 – 2019
- 2019
- [i48]Hélio M. de Oliveira, Victor Vermehren Valenzuela:
ND-Wavelets Derived from Anti-symmetric Systems of Isolated Particles using the Determinant of Slater. CoRR abs/1907.05988 (2019) - 2018
- [i47]A. J. A. Paschoal, R. M. Campello de Souza, Hélio M. de Oliveira:
The Hamming and Golay Number-Theoretic Transforms. CoRR abs/1806.09727 (2018) - [i46]Hélio M. de Oliveira, Francisco Cháves:
von Mises Tapering: A Circular Data Windowing. CoRR abs/1806.10273 (2018) - [i45]Hélio M. de Oliveira, Raydonal Ospina:
A Note on the Shannon Entropy of Short Sequences. CoRR abs/1807.02603 (2018) - 2017
- [i44]Ricardo M. Campello de Souza, Hélio M. de Oliveira, Renato J. Cintra:
Multiuser Communication Based on the DFT Eigenstructure. CoRR abs/1702.01793 (2017) - [i43]Hélio Magalhães de Oliveira, R. C. de Oliveira:
Understanding MIDI: A Painless Tutorial on Midi Format. CoRR abs/1705.05322 (2017) - [i42]Hélio Magalhães de Oliveira, R. C. de Oliveira:
Linear Computer-Music through Sequences over Galois Fields. CoRR abs/1709.06663 (2017) - 2016
- [i41]Hélio M. de Oliveira, Renato J. Cintra:
A New Information Theoretical Concept: Information-Weighted Heavy-tailed Distributions. CoRR abs/1601.06412 (2016) - [i40]R. C. de Oliveira, Hélio Magalhães de Oliveira, R. A. Ramalho, L. P. S. Viana:
Performance Assessment of WhatsApp and IMO on Android Operating System (Lollipop and KitKat) during VoIP calls using 3G or WiFi. CoRR abs/1603.01316 (2016) - 2015
- [i39]M. M. S. Lira, Hélio M. de Oliveira, Renato J. Cintra:
Elliptic-cylindrical Wavelets: The Mathieu Wavelets. CoRR abs/1501.07255 (2015) - [i38]E. L. F. Da Silva, Hélio M. de Oliveira:
Implementation of an Automatic Syllabic Division Algorithm from Speech Files in Portuguese Language. CoRR abs/1501.07496 (2015) - [i37]Hélio M. de Oliveira, R. G. F. Távora, Renato J. Cintra, Ricardo M. Campello de Souza:
Fast Finite Field Hartley Transforms Based on Hadamard Decomposition. CoRR abs/1502.00277 (2015) - [i36]Renato J. Cintra, Vassil S. Dimitrov, Hélio M. de Oliveira, Ricardo M. Campello de Souza:
Fragile Watermarking Using Finite Field Trigonometrical Transforms. CoRR abs/1502.00296 (2015) - [i35]M. M. S. Lira, Hélio M. de Oliveira, M. A. Carvalho Jr., Ricardo M. Campello de Souza:
Compactly Supported Wavelets Derived From Legendre Polynomials: Spherical Harmonic Wavelets. CoRR abs/1502.00950 (2015) - [i34]Hélio M. de Oliveira, Renato J. Cintra, Ricardo M. Campello de Souza:
A Factorization Scheme for Some Discrete Hartley Transform Matrices. CoRR abs/1502.01038 (2015) - [i33]Victor Vermehren Valenzuela, J. E. Wesen, Hélio M. de Oliveira:
Close Approximations for Daublets and their Spectra. CoRR abs/1502.01424 (2015) - [i32]Hélio M. de Oliveira, Ricardo M. Campello de Souza, R. C. de Oliveira:
A Matrix Laurent Series-based Fast Fourier Transform for Blocklengths N=4 (mod 8). CoRR abs/1502.01566 (2015) - [i31]Hélio M. de Oliveira, Rafael Dueire Lins:
Taylor Series as Wide-sense Biorthogonal Wavelet Decomposition. CoRR abs/1502.01570 (2015) - [i30]Hélio M. de Oliveira:
Shannon and Renyi Entropy of Wavelets. CoRR abs/1502.01871 (2015) - [i29]Hélio M. de Oliveira, Tiago H. Falk:
On Wavelet Decomposition over Finite Fields. CoRR abs/1502.01877 (2015) - [i28]Ernande F. Melo, Hélio M. de Oliveira:
A Fingerprint-based Access Control using Principal Component Analysis and Edge Detection. CoRR abs/1502.01880 (2015) - [i27]Hélio M. de Oliveira, Renato J. Cintra, Ricardo M. Campello de Souza:
Multilayer Hadamard Decomposition of Discrete Hartley Transforms. CoRR abs/1502.02168 (2015) - [i26]Hélio M. de Oliveira, C. M. F. Barros, Ricardo M. Campello de Souza:
Fourier Codes and Hartley Codes. CoRR abs/1502.02489 (2015) - [i25]Hélio M. de Oliveira:
The Adaptive Mean-Linkage Algorithm: A Bottom-Up Hierarchical Cluster Technique. CoRR abs/1502.02512 (2015) - [i24]Ricardo M. Campello de Souza, Hélio M. de Oliveira, Danilo Silva:
The Z Transform over Finite Fields. CoRR abs/1502.03371 (2015) - [i23]R. F. B. Sotero Filho, Hélio M. de Oliveira, Ricardo M. Campello de Souza:
A Full Frequency Masking Vocoder for Legal Eavesdropping Conversation Recording. CoRR abs/1502.03387 (2015) - [i22]Hélio M. de Oliveira, E. A. Bouton:
Multiresolution Division Multiplex (MRDM): A New Wavelet-based Multiplex System. CoRR abs/1502.03620 (2015) - [i21]Joao Paulo C. L. Miranda, Hélio M. de Oliveira:
On Galois-Division Multiple Access Systems: Figures of Merit and Performance Evaluation. CoRR abs/1502.03698 (2015) - [i20]Hélio M. de Oliveira, J. Ranhel, R. B. A. Alves:
Simulation of Color Blindness and a Proposal for Using Google Glass as Color-correcting Tool. CoRR abs/1502.03723 (2015) - [i19]Ricardo M. Campello de Souza, Hélio M. de Oliveira, A. N. Kauffman:
The Hartley Transform in a Finite Field. CoRR abs/1502.04670 (2015) - [i18]Hélio M. de Oliveira, D. F. de Souza:
Wavelet Analysis as an Information Processing Technique. CoRR abs/1502.05879 (2015) - [i17]R. C. de Oliveira, Hélio M. de Oliveira, Ricardo M. Campello de Souza, E. J. P. Santos:
A Flexible Implementation of a Matrix Laurent Series-Based 16-Point Fast Fourier and Hartley Transforms. CoRR abs/1502.05880 (2015) - [i16]Hélio M. de Oliveira, Ricardo M. Campello de Souza:
Orthogonal Multilevel Spreading Sequence Design. CoRR abs/1502.05881 (2015) - [i15]André R. Gomes e Silva, Hélio M. de Oliveira, Rafael Dueire Lins:
Converting ECG and other paper legated biomedical maps into digital signals. CoRR abs/1502.05906 (2015) - [i14]Luciana R. Soares, Hélio M. de Oliveira:
Fault Analysis Using Gegenbauer Multiresolution Analysis. CoRR abs/1503.00698 (2015) - [i13]E. A. Bouton, Hélio M. de Oliveira, Ricardo M. Campello de Souza, N. S. Santos-Magalhães:
Genomic Imaging Based on Codongrams and a^2grams. CoRR abs/1503.02536 (2015) - [i12]Hélio M. de Oliveira, N. S. Santos-Magalhães:
The Genetic Code revisited: Inner-to-outer map, 2D-Gray map, and World-map Genetic Representations. CoRR abs/1503.02570 (2015) - [i11]Gilson Jerônimo da Silva Jr., Ricardo M. Campello de Souza, Hélio M. de Oliveira:
New Algorithms for Computing a Single Component of the Discrete Fourier Transform. CoRR abs/1503.02577 (2015) - [i10]Ricardo M. Campello de Souza, Eduarda S. V. Freire, Hélio M. de Oliveira:
Fourier Codes. CoRR abs/1503.03293 (2015) - [i9]M. M. Campello de Souza, Hélio M. de Oliveira, Ricardo M. Campello de Souza, M. M. Vasconcelos:
The Discrete Cosine Transform over Prime Finite Fields. CoRR abs/1503.03763 (2015) - [i8]Hélio M. de Oliveira, Viviane L. Sousa, A. N. Helfarne, Ricardo M. Campello de Souza:
Radix-2 Fast Hartley Transform Revisited. CoRR abs/1503.03794 (2015) - [i7]C. M. F. Barros, Francisco Marcos de Assis, Hélio M. de Oliveira:
Quantum Decoding with Venn Diagrams. CoRR abs/1503.04334 (2015) - [i6]P. Carrion, Hélio M. de Oliveira, Ricardo M. Campello de Souza:
A Low-throughput Wavelet-based Steganography Audio Scheme. CoRR abs/1503.07551 (2015) - [i5]Hélio M. de Oliveira, Joao Paulo C. L. Miranda, Ricardo M. Campello de Souza:
Spread-Spectrum Based on Finite Field Fourier Transforms. CoRR abs/1503.08109 (2015) - [i4]Victor Vermehren Valenzuela, Rafael Dueire Lins, Hélio M. de Oliveira:
Application of Enhanced-2D-CWT in Topographic Images for Mapping Landslide Risk Areas. CoRR abs/1504.05137 (2015) - [i3]M. M. S. Lira, Hélio M. de Oliveira, Renato J. Cintra, Ricardo M. Campello de Souza:
Wavelets for Elliptical Waveguide Problems. CoRR abs/1504.05262 (2015) - [i2]Renato J. Cintra, Hélio M. de Oliveira:
A Short Survey on Arithmetic Transforms and the Arithmetic Hartley Transform. CoRR abs/1504.06106 (2015) - [i1]Hélio M. de Oliveira, Ricardo M. Campello de Souza, A. N. Kauffman:
Efficient Multiplex for Band-Limited Channels: Galois-Field Division Multiple Access. CoRR abs/1505.04140 (2015) - 2013
- [c8]Victor Vermehren Valenzuela, Rafael Dueire Lins, Hélio Magalhães de Oliveira:
Application of Enhanced-2D-CWT in Topographic Images for Mapping Landslide Risk Areas. ICIAR 2013: 380-388 - 2012
- [c7]R. C. de Oliveira, Ricardo M. Campello de Souza, Hélio M. de Oliveira:
Matrix expansions for computing the discrete hartley transform for blocklength N ≡ 0 (mod 4). LATINCOM 2012: 1-6
2000 – 2009
- 2009
- [j3]Renato J. Cintra, Vassil S. Dimitrov, Hélio M. de Oliveira, Ricardo M. Campello de Souza:
Fragile watermarking using finite field trigonometrical transforms. Signal Process. Image Commun. 24(7): 587-597 (2009) - 2007
- [c6]André R. Gomes e Silva, Hélio Magalhães de Oliveira, Rafael Dueire Lins:
Converting ECG and Other Paper Legated Biomedical Maps into Digital Signals. GREC 2007: 21-28 - 2004
- [j2]M. M. S. Lira, Hélio Magalhães de Oliveira, Renato J. Cintra:
Elliptic-cylindrical wavelets: the Mathieu wavelets. IEEE Signal Process. Lett. 11(1): 52-55 (2004) - [c5]M. M. Campello de Souza, Hélio M. de Oliveira, Ricardo M. Campello de Souza, M. M. Vasconcelos:
The Discrete Cosine Transform over Prime Finite Fields. ICT 2004: 482-487 - [c4]Juliano B. Lima, Ricardo M. Campello de Souza, Hélio M. de Oliveira, M. M. Campello de Souza:
Faster DTMF Decoding. ICT 2004: 510-515 - [c3]Hélio M. de Oliveira, N. S. Santos-Magalhães:
The Genetic Code Revisited: Inner-to-Outer Map, 2D-Gray Map, and World-Map Genetic Representations. ICT 2004: 526-531 - 2002
- [c2]Renato J. Cintra, Hélio M. de Oliveira:
How to interpolate in arithmetic transform algorithms. ICASSP 2002: 4169
1990 – 1999
- 1993
- [j1]Hélio Magalhães de Oliveira, Gerard Battail:
On Lattice Coding for the Gaussian Channel. Eur. Trans. Telecommun. 4(2): 133-140 (1993) - 1990
- [c1]Gerard Battail, Hélio Magalhães de Oliveira, Weidong Zhang:
Coding and modulation for the Gaussian channel, in the absence or in the presence of fluctuations. EUROCODE 1990: 337-349
Coauthor Index
manage site settings
To protect your privacy, all features that rely on external API calls from your browser are turned off by default. You need to opt-in for them to become active. All settings here will be stored as cookies with your web browser. For more information see our F.A.Q.
Unpaywalled article links
Add open access links from 
to the list of external document links (if available).
Privacy notice: By enabling the option above, your browser will contact the API of unpaywall.org to load hyperlinks to open access articles. Although we do not have any reason to believe that your call will be tracked, we do not have any control over how the remote server uses your data. So please proceed with care and consider checking the Unpaywall privacy policy.
Archived links via Wayback Machine
For web page which are no longer available, try to retrieve content from the 
of the Internet Archive (if available).
Privacy notice: By enabling the option above, your browser will contact the API of archive.org to check for archived content of web pages that are no longer available. Although we do not have any reason to believe that your call will be tracked, we do not have any control over how the remote server uses your data. So please proceed with care and consider checking the Internet Archive privacy policy.
Reference lists
Add a list of references from 
, 
, and 
to record detail pages.
load references from crossref.org and opencitations.net
Privacy notice: By enabling the option above, your browser will contact the APIs of crossref.org, opencitations.net, and semanticscholar.org to load article reference information. Although we do not have any reason to believe that your call will be tracked, we do not have any control over how the remote server uses your data. So please proceed with care and consider checking the Crossref privacy policy and the OpenCitations privacy policy, as well as the AI2 Privacy Policy covering Semantic Scholar.
Citation data
Add a list of citing articles from and to record detail pages.
load citations from opencitations.net
Privacy notice: By enabling the option above, your browser will contact the API of opencitations.net and semanticscholar.org to load citation information. Although we do not have any reason to believe that your call will be tracked, we do not have any control over how the remote server uses your data. So please proceed with care and consider checking the OpenCitations privacy policy as well as the AI2 Privacy Policy covering Semantic Scholar.
OpenAlex data
Load additional information about publications from 
.
Privacy notice: By enabling the option above, your browser will contact the API of openalex.org to load additional information. Although we do not have any reason to believe that your call will be tracked, we do not have any control over how the remote server uses your data. So please proceed with care and consider checking the information given by OpenAlex.
last updated on 2024-05-02 21:47 CEST by the dblp team
all metadata released as open data under CC0 1.0 license
see also: Terms of Use | Privacy Policy | Imprint
dblp was originally created in 1993 at:
since 2018, dblp has been operated and maintained by:
the dblp computer science bibliography is funded and supported by:
