@article{article, author = {Agarwal Vibhor, AKYILMAZ ORHAN, SHUM CK, FENG WEI, Yang Ting-Yi, FOROOTAN EHSAN, Syed Tajdarul Hassan, Haritashya Umesh K., UZ METEHAN}, title = {Machine learning based downscaling of GRACE-estimated groundwater in Central Valley, California}, journal = {Elsevier BV}, year = 2023, month = 3, volume = 865 }

@article{article, author = {OLGUN SEVDA, ÜSTÜN AYDIN, AKYILMAZ ORHAN}, title = {tc-cylinder: An optimized algorithm for accurate topography effect from high-resolution digital elevation models}, journal = {Elsevier BV}, year = 2023, month = 1, volume = 170 }

@article{article, author = {UZ METEHAN, ATMAN KAZIM GÖKHAN, AKYILMAZ ORHAN, SHUM CK, KELEŞ MERVE, AY TUĞÇE, TANDOĞDU BİHTER, ZHANG YU, MERCAN HÜSEYİN}, title = {Bridging the gap between GRACE and GRACE-FO missions with deep learning aided water storage simulations}, journal = {Science of the Total Environment}, year = 2022, month = 12, volume = 830 }

@article{article, author = {FANG XING, HU YU, ZENG WENXIAN, AKYILMAZ ORHAN}, title = {Weighted least-squares fitting of circles with variance component estimation}, journal = {Measurement}, year = 2022, month = 12, volume = 205 }

@article{article, author = {UYGUR SÜREYYA ÖZGÜR,AYDIN CÜNEYT,AKYILMAZ ORHAN}, title = {Retrieval of Euler rotation angles from 3D similarity transformation based on quaternions}, journal = {Journal of Spatial Science}, year = 2022, number = 2, pages = {255-272}, month = 5, volume = 67 }

@article{article, author = {HU YU, FANG XING, QIN YUXIN, AKYILMAZ ORHAN}, title = {Weighted geometric circle fitting for the Brogar Ring: Parameter-free approach and bias analysis}, journal = {Measurement}, year = 2022, month = 3, volume = 192 }

@article{article, author = {UYGUR SÜREYYA ÖZGÜR, AKYILMAZ ORHAN, AYDIN CÜNEYT}, title = {Solution of Nine-Parameter Affine Transformation Based on Quaternions}, journal = {Journal of Surveying Engineering}, year = 2021, number = 3, month = 8, volume = 147 }

@inproceedings{inproceedings, author = {UZ METEHAN, AKYILMAZ ORHAN, Kusche Jürgen, Shum C K, ÜSTÜN AYDIN, Zhang Y u}, title = {Investigation of systematic errors in GRACE temporal gravity field solutions using the Improved Energy Balance Approach}, year = 2020, month = 5 }

@inproceedings{inproceedings, author = {AKYILMAZ ORHAN,UZ METEHAN,Shum CK,Shang Kun,ÜSTÜN AYDIN,Guo Junyi,Zhang Yu,Zhang Chaoyang}, title = {Daily GRACE gravity solutions for monitoring extreme weather events}, year = 2019, month = 8 }

@article{article, author = {MERCAN HÜSEYİN,AKYILMAZ ORHAN,AYDIN CÜNEYT}, title = {Solution of the weighted symmetric similarity transformations based on quaternions}, journal = {Journal of Geodesy}, year = 2018, number = 10, pages = {1113-1130}, month = 10, volume = 92 }

@inproceedings{inproceedings, author = {AKYILMAZ ORHAN}, title = {Total least squares solution of datum transformations}, year = 2018, month = 8 }

@inproceedings{inproceedings, author = {UYGUR SÜREYYA ÖZGÜR,AYDIN CÜNEYT,AKYILMAZ ORHAN}, title = {Simetrik Koordinat Dönüşümünün Jeodezik Çalışmalara Katkısı: İki Boyutlu Örnekler Üzerine Bir İrdeleme}, year = 2018, pages = {160-163}, month = 5 }

@inproceedings{inproceedings, author = {AKYILMAZ ORHAN,SHUM CK,UZ METEHAN,SHANG KUN,GUO JUNYI,ZHANG YU,BEZDEK ALES,GÜNEY CANER}, title = {GRACE Gözlemlerinden C20 Gravite Katsayısı: Yeni Sonuçlar}, year = 2018, pages = {168-171}, month = 5 }

@inproceedings{inproceedings, author = {UYGUR SÜREYYA ÖZGÜR,AYDIN CÜNEYT,AKYILMAZ ORHAN}, title = {Simetrik Koordinat Dönüşümünün Jeodezik Çalışmalara Katkısı: İki Boyutlu Örnekler Üzerinden Bir İrdeleme}, year = 2018, pages = {160-163}, month = 5 }

@book{book, author = {KUÇAK RAMAZAN ALPER,ULUĞ RAŞİT,AKYILMAZ ORHAN}, title = {The Prediction of Nonlinear Polar Motion Based on Artificial Neural Network (ANN) and Fuzzy Inference System (FIS)}, booktitle = {Advances in Nonlinear Geosciences}, year = 2018, pages = {297-304}, publisher = {Springer International Publishing} }

@inproceedings{inproceedings, author = {ZHANG YU,SHUM CK,SHANG KUN,GUO JUNYI,SCHWARTZ FRANK,AKYILMAZ ORHAN,FENG WEI,FOROOTAN EHSAN,LIU GANMING,ZHONG MIN}, title = {Study of Extreme Weather Hazards using GRACE}, year = 2017, month = 12 }

@inproceedings{inproceedings, author = {ZHANG YU,SHANG KUN,SHUM CK,GUO JUNYI,SCHWARTZ FRANK,AKYILMAZ ORHAN,FENG WEI,FOROOTAN EHSAN,KUO CHUNGYEN,LIU GANMING,ZHONG MIN}, title = {Study of Extreme Weather Hazards Using GRACE}, year = 2017, month = 12 }

@inproceedings{inproceedings, author = {UYGUR SÜREYYA ÖZGÜR,AYDIN CÜNEYT,AKYILMAZ ORHAN}, title = {Transformation between Inertial and Earth-Fixed Frames: A Reduced-Dynamic Orbit Example}, year = 2017, month = 10 }

@inproceedings{inproceedings, author = {UYGUR SÜREYYA ÖZGÜR,AYDIN CÜNEYT,AKYILMAZ ORHAN,ARSLAN NİYAZİ}, title = {Validation of Bernese-Derived Precise Orbits for GRACE Satellites}, year = 2017, pages = {235-243}, month = 10 }

@inproceedings{inproceedings, author = {UYGUR SÜREYYA ÖZGÜR,AYDIN CÜNEYT,ARSLAN NİYAZİ,AKYILMAZ ORHAN}, title = {Validation of Bernese-Derived Precise Orbits for GRACE Satellites}, year = 2017, pages = {235-243}, month = 10 }

@inproceedings{inproceedings, author = {UYGUR SÜREYYA ÖZGÜR,AYDIN CÜNEYT,AKYILMAZ ORHAN}, title = {Transformation Between Inertial and Earth-Fixed Frames: A Reduced-Dynamic Orbit Example}, year = 2017, month = 10 }

@inproceedings{inproceedings, author = {ALBAYRAK MÜGE,ÖZLÜDEMİR MUSTAFA TEVFİK,AKYILMAZ ORHAN,HALICIOĞLU KEREM}, title = {Soft Computing and Conventional Interpolation Methods in Geoid Modelling: A Case Study in Istanbul}, year = 2017, month = 5 }

@inproceedings{inproceedings, author = {SHANG KUN,SHUM CK,BEZDEK ALES,ZHANG YU,AKYILMAZ ORHAN,TEIXEIRA DA ENCARNAÇAO JOAO,DAI CHUNLI,FOROOTAN EHSAN,GUO JUNYI,KLOKOCNIK JAROSLAV,KUO CHUNGYEN,SEBERA JOSEF}, title = {Low-degree temporal gravity field solution from SWARM constellation using the energy balance approach}, year = 2017, month = 3 }

@inproceedings{inproceedings, author = {SHUM CK,SHANG KUN,GUO JUNYI,ZHANG YU,FOROOTAN EHSAN,AKYILMAZ ORHAN,DAI CHUNLI,KUO CHUNGYEN,KUSCHE JÜRGEN,LIU GANMING,LIU RUNQIU,MERCAN HUSEYIN,SCHWARTZ FRANK,SCHMIDT MICHAEL,ZHONG MIN,ZOTOV LEONID}, title = {GRACE High-Frequency Temporal Gravity Solution on Hydrology Applications}, year = 2017, month = 3 }

@article{article, author = {Topal Erhan,AKYILMAZ ORHAN,Aslan A Rüstem}, title = {Spaceborne Push Broom Image Guidance Attitude Realization Errors A System Engineering Approach}, journal = {Arabian Journal for Science and Engineering}, year = 2016, number = 11, pages = {4477-4486}, month = 11, volume = 41 }

@inproceedings{inproceedings, author = {KUÇAK RAMAZAN ALPER,ULUĞ RAŞİT,AKYILMAZ ORHAN}, title = {The prediction of nonlinear polar motions PMS based on artificial neural network ANN and fuzzy inference system ANFIS}, year = 2016, month = 7 }

@inproceedings{inproceedings, author = {SHUM CK,SHANG KUN,DAI CHUNLI,AKYILMAZ ORHAN,BEZDEK ALES,FOROOTAN EHSAN,GUO JUNYI,Hossain F,KLOKOCNIK JAROSLAV,SEBERA JOSEF,SCHMIDT MICHAEL}, title = {Applications of energy balance and regional gravity modeling approach on improved GRACE estimates of terrestrial water storage changes}, year = 2015, month = 6 }

@inproceedings{inproceedings, author = {SHUM CK,SHANG KUN,DAI CHUNLI,GUO JUNYI,KUO CHUNGYEN,BEZDEK ALES,SEBERA JOSEF,KLOKOCNIK JAROSLAV,SCHMIDT MICHAEL,AKYILMAZ ORHAN,Martinez Benjamin JJ}, title = {Combining GOCE and GRACE data towards improved temporal Gravity Solutions}, year = 2014, month = 11 }

@inproceedings{inproceedings, author = {AYDAR UMUT,Altan M Orhan,AKYILMAZ ORHAN,Akça Devrim}, title = {Co-registration of 3D point clouds by an errors-in-variables model}, year = 2012, month = 8 }

@inproceedings{inproceedings, author = {AKYILMAZ ORHAN,MERCAN HUSEYIN}, title = {Surface water storage variations in Anatolia and surrounding territories observed by GRACE}, year = 2012, month = 4 }

@article{article, author = {AKYILMAZ ORHAN}, title = {title Discussion of Sertel E Cigizoglu H K and Sanli D U 2011 Reply to Akyilmaz O 2010 Discussion of Sertel E Cigizoglu H K and Sanli D U 2008 Estimating Daily Mean Sea Level Heights Using Artificial Neural Networks i Journal of Coastal Research i 24 3 727 734 i Journal of Coastal Research i 26 6 1184 1185 i Journal of Coastal Research i 27 4 791 792 title}, journal = {Journal of Coastal Research}, year = 2012, number = 2, pages = {528-529}, month = 3, volume = 28 }

@inproceedings{inproceedings, author = {AKYILMAZ ORHAN}, title = {Solution of the Heteroscedastic Datum Transformation Problems}, year = 2011, month = 4 }

@article{article, author = {AKYILMAZ ORHAN,Kutterer Hansjörg,SHUM CK,Tevfik Ayan}, title = {Fuzzy wavelet based prediction of Earth rotation parameters}, journal = {Applied Soft Computing}, year = 2011, number = 1, pages = {837-841}, month = 1, volume = 11 }

@article{article, author = {AKYILMAZ ORHAN}, title = {title Discussion of Sertel E Cigizoglu H K and Sanli D U 2008 Estimating Daily Mean Sea Level Heights Using Artificial Neural Networks i Journal of Coastal Research i 24 3 727 734 title}, journal = {Journal of Coastal Research}, year = 2010, pages = {1184-1184}, month = 11, volume = 26 }

@article{article, author = {Kalarus Majiec,Schuh Harald,Kosek Wieslaw,AKYILMAZ ORHAN,Bizouard Christian,Gambis Daniel,Gross Richard,Jovanovic Boran,Kumakshev Sergei,Kutterer Hansjörg,Cerveira PJM,Pasynok Sergei,ZOTOV LEONID}, title = {Achievements of the Earth orientation parameters prediction comparison campaign}, journal = {Journal of Geodesy}, year = 2010, number = 10, pages = {587-596}, month = 10, volume = 84 }

@inproceedings{inproceedings, author = {AKYILMAZ ORHAN,SHUM CK}, title = {An investigation on the correlation of geodetic excitation functions and the EOP prediction errors and analysing the relationship between the anomalous prediction errors and severe earthquakes}, year = 2009, month = 10 }

@inproceedings{inproceedings, author = {AKYILMAZ ORHAN}, title = {Fuzzy inference systems for the prediction of EOPs}, year = 2009, month = 10 }

@article{article, author = {Zhang Lu,Kim JW,Lee Hyongki,SHUM CK,Duan JB,Ibaraki Motomu,AKYILMAZ ORHAN,Read CH}, title = {Helmand River hydrologic studies using ALOS PALSAR InSAR and ENVISAT altimetry}, journal = {MARINE GEODESY}, year = 2009, number = 3, pages = {320-333}, month = 1, volume = 32 }

@article{article, author = {AKYILMAZ ORHAN,ÖZLÜDEMİR MUSTAFA TEVFİK,ÇELİK RAHMİ NURHAN,Tevfik Ayan}, title = {Soft computing methods for geoidal height transformation}, journal = {EARTH PLANETS AND SPACE}, year = 2009, number = 7, pages = {825-833}, volume = 61 }

@inproceedings{inproceedings, author = {Schuh Harald,Kosek Wieslaw,Kalarus Majiec,AKYILMAZ ORHAN,Gambis Daniel,Gross Richard,Jovanovic Boran,Kumakshev Sergei,Kutterer Hansjörg,Mendes Cerveira PJ,Pasynok Sergei,ZOTOV LEONID}, title = {Earth Orientation Parameters Prediction Comparison Campaign – first summary}, year = 2008, month = 4 }

@article{article, author = {AKYILMAZ ORHAN,Potts Laramie,Braun Alex,SHUM CK}, title = {Multi resolution dune morphology using Shuttle Radar Topography Mission SRTM and dune mobility from fuzzy inference systems using SRTM and altimetric data}, journal = {INTERNATIONAL JOURNAL OF REMOTE SENSING}, year = 2008, number = 10, pages = {2879-2901}, month = 1, volume = 29 }

@article{article, author = {AKYILMAZ ORHAN,ARSLAN NİYAZİ}, title = {An experiment of predicting Total Electron Content TEC by fuzzyinference systems}, journal = {EARTH PLANETS AND SPACE}, year = 2008, number = 9, pages = {967-972}, volume = 60 }

@article{article, author = {AKYILMAZ ORHAN}, title = {Total Least Squares Solution of Coordinate Transformation}, journal = {Survey Review}, year = 2007, number = 303, pages = {68-80}, month = 1, volume = 39 }

@inproceedings{inproceedings, author = {Acar Mustafa,ÖZLÜDEMİR MUSTAFA TEVFİK,AKYILMAZ ORHAN,Ayan Tevfik}, title = {Total Least Squares in Geodetic Coordinate Transformation}, year = 2006, month = 11 }

@inproceedings{inproceedings, author = {KUO CHUNGYEN,SHUM CK,Braun Alex,AKYILMAZ ORHAN}, title = {Vertical Motion Determined Using Satellite Altimetry and Tide Gauges}, year = 2006, month = 8 }

@inproceedings{inproceedings, author = {AKYILMAZ ORHAN,SCHMIDT MICHAEL,SHUM CK,Han Shin Chin}, title = {Fuzzy-Wavelet Based Estimation of Regional Height Changes From Grace In-Situ Observations}, year = 2006, month = 8 }

@inproceedings{inproceedings, author = {SHUM CK,Han Shin Chin,KUO CHUNGYEN,SCHMIDT MICHAEL,AKYILMAZ ORHAN}, title = {Observation of Geodynamic Processes by GRACE}, year = 2006, month = 8 }

@inproceedings{inproceedings, author = {Schuh Harald,Kosek Wieslaw,Kalarus Majiec,AKYILMAZ ORHAN,Bizouard Christian,Gambis Daniel,Gross Richard,Kumakshev Sergei,Kutterer Hansjörg,ZOTOV LEONID}, title = {First Results of the Earth Orientation Parameters Prediction Comparison Campaign}, year = 2006, month = 4 }

@article{article, author = {ÖZLÜDEMİR MUSTAFA TEVFİK,AKYILMAZ ORHAN,ÇELİK RAHMİ NURHAN,Tevfik Ayan}, title = {Deformation analysis with Total Least Squares}, journal = {NATURAL HAZARDS AND EARTH SYSTEM SCIENCES}, year = 2006, number = 4, pages = {663-669}, month = 1, volume = 6 }

@inproceedings{inproceedings, author = {AKYILMAZ ORHAN,Kutterer Hansjörg,Han Shin Chin,SHUM CK}, title = {Fuzzy logic based estimation of continental water storage changes from GRACE observations}, year = 2005, month = 8 }

@inproceedings{inproceedings, author = {AKYILMAZ ORHAN,Han Shin Chin,SHUM CK}, title = {Fuzzy modeling of continental water storage changes observed by GRACE}, year = 2005, month = 5 }

@article{article, author = {AKYILMAZ ORHAN,ERDEN TURAN,İPBÜKER CENGİZHAN}, title = {A fuzzy logic approach to the ginzburg IV projection}, journal = {SURVEY REVIEW}, year = 2005, number = 295, pages = {25-38}, month = 1, volume = 38 }

@book{book, author = {AKYILMAZ ORHAN,Kutterer Hansjörg}, title = {Fuzzy Inference Systems for the Prediction of Earth Rotation Parameters}, booktitle = {A Window on the Future of Geodesy}, year = 2005, pages = {582-588}, publisher = {Springer-Verlag} }

@article{article, author = {AKYILMAZ ORHAN,Kutterer Hansjörg}, title = {Prediction of Earth rotation parameters by fuzzy inference systems}, journal = {Journal of Geodesy}, year = 2004, number = 1-2, pages = {82-93}, month = 9, volume = 78 }

@book{book, author = {Aliosmanoğlu Şebnem,AKYILMAZ ORHAN}, title = {A comparison between statistical and fuzzy techniques in outlier detection}, booktitle = {Vistas for Geodesy in the New Millenium}, year = 2002, pages = {382-387}, publisher = {Springer-Verlag} }