On the use of collaborative sparse regression in hyperspectral unmixing chains. - Marian-Daniel Iordache; Akpona Okujeni; Sebastian van der Linden; José M. Bioucas-Dias; Antonio Plaza; Ben Somers (WHISPERS, 2014)

Import Vector Machines for Quantitative Analysis of Hyperspectral Data. - Stefan Suess; Sebastian van der Linden; Pedro J. Leitão; Akpona Okujeni; Björn Waske; Patrick Hostert (IEEE Geosci. Remote. Sens. Lett., 2014)

A Comparison of Advanced Regression Algorithms for Quantifying Urban Land Cover. - Akpona Okujeni; Sebastian van der Linden; Benjamin Jakimow; Andreas Rabe; Jochem Verrelst; Patrick Hostert (Remote. Sens., 2014)

Monitoring Natural Ecosystem and Ecological Gradients: Perspectives with EnMAP. - Pedro J. Leitão; Marcel Schwieder; Stefan Suess; Akpona Okujeni; Lênio Soares Galvão; Sebastian van der Linden; Patrick Hostert (Remote. Sens., 2015)

The EnMAP-Box - A Toolbox and Application Programming Interface for EnMAP Data Processing. - Sebastian van der Linden; Andreas Rabe; Matthias Held; Benjamin Jakimow; Pedro J. Leitão; Akpona Okujeni; Marcel Schwieder; Stefan Suess; Patrick Hostert (Remote. Sens., 2015)

Using Class Probabilities to Map Gradual Transitions in Shrub Vegetation from Simulated EnMAP Data. - Stefan Suess; Sebastian van der Linden; Akpona Okujeni; Pedro J. Leitão; Marcel Schwieder; Patrick Hostert (Remote. Sens., 2015)

Optimizing mixed spectra generation for regression-based unmixing of land cover in urban areas. - Frederik Priem; Frank Canters; Akpona Okujeni; Sebastian van der Linden (JURSE, 2017)

Thermal evaluation of the local climate zone scheme in Belgium. - Marie-Leen Verdonck; Frieke Van Coillie; Robert R. de Wulf; Akpona Okujeni; Sebastian van der Linden; Matthias Demuzere; Hans Hooyberghs (JURSE, 2017)

Influence of neighbourhood information on 'Local Climate Zone' mapping in heterogeneous cities. - Marie-Leen Verdonck; Akpona Okujeni; Sebastian van der Linden; Matthias Demuzere; Robert R. De Wulf; Frieke Van Coillie (Int. J. Appl. Earth Obs. Geoinformation, 2017)

A Novel Spectral Library Pruning Technique for Spectral Unmixing of Urban Land Cover. - Jeroen Degerickx; Akpona Okujeni; Marian-Daniel Iordache; Martin Hermy; Sebastian van der Linden; Ben Somers (Remote. Sens., 2017)

Ensemble Learning From Synthetically Mixed Training Data for Quantifying Urban Land Cover With Support Vector Regression. - Akpona Okujeni; Sebastian van der Linden; Stefan Suess; Patrick Hostert (IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2017)

Subpixel Mapping of Urban Areas Using EnMAP Data and Multioutput Support Vector Regression. - Johannes Rosentreter; Ron Hagensieker; Akpona Okujeni; Ribana Roscher; Paul D. Wagner; Björn Waske (IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2017)

Comparing map-based and library-based training approaches for urban land-cover fraction mapping from Sentinel-2 imagery. - Frederik Priem; Akpona Okujeni; Sebastian van der Linden; Frank Canters (Int. J. Appl. Earth Obs. Geoinformation, 2019)

Combining simulated hyperspectral EnMAP and Landsat time series for forest aboveground biomass mapping. - Sam Cooper; Akpona Okujeni; Dirk Pflugmacher; Sebastian van der Linden; Patrick Hostert (Int. J. Appl. Earth Obs. Geoinformation, 2021)

EnMAP-Box: Imaging spectroscopy in QGIS. - Benjamin Jakimow; Andreas Janz; Fabian Thiel; Akpona Okujeni; Patrick Hostert; Sebastian van der Linden (SoftwareX, 2023)

Mapping Savannah Woody Vegetation at the Species Level with Multispectral Drone and Hyperspectral EnMAP Data. - Christina Karakizi; Akpona Okujeni; Eleni Sofikiti; Vasileios Tsironis; Athina Psalta; Konstantinos Karantzalos; Patrick Hostert; Elias Symeonakis (IGARSS, 2024)

Mapping savannah woody vegetation at the species level with multispecral drone and hyperspectral EnMAP data. - Christina Karakizi; Akpona Okujeni; Eleni Sofikiti; Vasileios Tsironis; Athina Psalta; Konstantinos Karantzalos; Patrick Hostert; Elias Symeonakis (CoRR, 2024)