Search results for "scrambling"

Hits ?▲	Authors	Title	Venue	Year	Link
16	Jianeng Tang, Zezong Zhang, Peiyang Chen, Feng Zhang, Hui Ni, Zhongming Huang	An image layered scrambling encryption algorithm based on a novel discrete chaotic map.	IET Image Process.	2023	DBLP DOI BibTeX RDF
16	Kazuki Yamato, Satoshi Ito	Super-Resolution for MRI Using Phase-Scrambling Fourier Transform Imaging and Unrolling Model-Based Network.	IEEE Access	2023	DBLP DOI BibTeX RDF
16	Wei Song, Chong Fu, Yu Zheng 0021, Ming Tie, Jun Liu, Junxin Chen	A parallel image encryption algorithm using intra bitplane scrambling.	Math. Comput. Simul.	2023	DBLP DOI BibTeX RDF
16	Wan-ting Wang, Jing-yu Sun, Gang Wang, Hao Zhang 0061	Fisher-Yates scrambling algorithm combined with S-box color image encryption technology based on 3D-SCCM chaotic system.	Multim. Tools Appl.	2023	DBLP DOI BibTeX RDF
16	Rong Chen, Fan Zhang, Lin Teng, Xingyuan Wang	Medical image characteristic region recognition encryption algorithm based on intra and inter blocks scrambling and LSCC chaotic map.	Multim. Tools Appl.	2023	DBLP DOI BibTeX RDF
16	Vijay Kumar Sharma, Jyoti Khandelwal, Sunita Singhal	Identification of Best Image Scrambling and Descrambling Method for Image Steganography.	Multim. Tools Appl.	2023	DBLP DOI BibTeX RDF
16	Hadda Ouguissi, Slami Saadi, Ahmed Merrad, Mecheri Kious	Hybrid scheme for safe speech transmission based on multiple chaotic maps, watermarking and Arnold scrambling algorithm.	Multim. Tools Appl.	2023	DBLP DOI BibTeX RDF
16	Basil Ibrahim, Eimad Abdu Abusham, Kashif Zia	Digital image scrambling based on outer totalistic cellular automaton and gray code pixels substitution.	Multim. Tools Appl.	2023	DBLP DOI BibTeX RDF
16	Hongwei Xie, Ya-jun Gao, Hao Zhang 0061	An image encryption algorithm based on novel block scrambling scheme and Josephus sequence generator.	Multim. Tools Appl.	2023	DBLP DOI BibTeX RDF
16	Xiaoyang Chen, Jun Mou, Yinghong Cao, Huizhen Yan, Hadi Jahanshahi	A chaotic color image encryption scheme based on improved Arnold scrambling and dynamic DNA encoding.	Multim. Tools Appl.	2023	DBLP DOI BibTeX RDF
16	Yi Huang, Lili Zhou	A hyper-chaos-based image encryption scheme with double parity alternate scrambling.	Multim. Tools Appl.	2023	DBLP DOI BibTeX RDF
16	Jieheng Zheng, Lin Zhang 0023, Yan Feng, Zhiqiang Wu 0001	Blockchain-Based Key Management and Authentication Scheme for IoT Networks With Chaotic Scrambling.	IEEE Trans. Netw. Sci. Eng.	2023	DBLP DOI BibTeX RDF
16	Bin Ge, Zhihua Shen, Xiao Wang	Symmetric Color Image Encryption Using a Novel Cross-Plane Joint Scrambling-Diffusion Method.	Symmetry	2023	DBLP DOI BibTeX RDF
16	Xiaoyang Chen, Jun Mou, Yinghong Cao, Santo Banerjee	Chaotic Multiple-Image Encryption Algorithm Based on Block Scrambling and Dynamic DNA Coding.	Int. J. Bifurc. Chaos	2023	DBLP DOI BibTeX RDF
16	Wenjing Zhang, Jiangjian Xu, Bing Zhao	DNA image encryption algorithm based on serrated spiral scrambling and cross bit plane.	J. King Saud Univ. Comput. Inf. Sci.	2023	DBLP DOI BibTeX RDF
16	Fan Chen 0003, Yaolin Yang, Hongjie He, Yuan Yuan	Adaptive Coding and Ordered-Index Extended Scrambling Based RDH in Encrypted Images.	IEEE Trans. Multim.	2023	DBLP DOI BibTeX RDF
16	Abdalla G. M. Ahmed, Matt Pharr, Peter Wonka	ART-Owen Scrambling.	CoRR	2023	DBLP DOI BibTeX RDF
16	Nashat Salih Abdulkarim Alsandi, Dilovan Asaad Zebari, Adel Al-Zebari, Falah Y. H. Ahmed, Mazin Abed Mohammed, Marwan Ali Albahar, Abdulaziz Ali Albahr	A Multi-Stream Scrambling and DNA Encoding Method Based Image Encryption.	Comput. Syst. Sci. Eng.	2023	DBLP DOI BibTeX RDF
16	Jian-Wei Jiang, Tian Zhang, Wei Li, Shumei Wang	A Quantum Image Watermarking Scheme Based on Quantum Hilbert Scrambling and Steganography about the Moiré Fringe.	Quantum Eng.	2023	DBLP DOI BibTeX RDF
16	Shengtao Geng, Jiahao Li, Xuncai Zhang, Yanfeng Wang	An Image Encryption Algorithm Based on Improved Hilbert Curve Scrambling and Dynamic DNA Coding.	Entropy	2023	DBLP DOI BibTeX RDF
16	Jie Gao, Yinuo Wang, Zhaoyang Song, Shumei Wang	Quantum Image Encryption Based on Quantum DNA Codec and Pixel-Level Scrambling.	Entropy	2023	DBLP DOI BibTeX RDF
16	Shuqin Zhu, Congxu Zhu, Hanyu Yan	Cryptanalyzing and Improving an Image Encryption Algorithm Based on Chaotic Dual Scrambling of Pixel Position and Bit.	Entropy	2023	DBLP DOI BibTeX RDF
16	Ling Wang 0010, Qiwen Ran, Junrong Ding	Image Encryption Using Quantum 3D Mobius Scrambling and 3D Hyper-Chaotic Henon Map.	Entropy	2023	DBLP DOI BibTeX RDF
16	Amr Farahat, Felix Effenberger, Martin A. Vinck	A novel feature-scrambling approach reveals the capacity of convolutional neural networks to learn spatial relations.	Neural Networks	2023	DBLP DOI BibTeX RDF
16	MuSeong Kim, Mi-Ra Hwang, Eylee Jung, Daekil Park	Scrambling and quantum teleportation.	Quantum Inf. Process.	2023	DBLP DOI BibTeX RDF
16	Xingyuan Wang, Xuan Chen	Image encryption algorithm based on cross-scrambling and rapid-mode diffusion.	Vis. Comput.	2023	DBLP DOI BibTeX RDF
16	Xingyuan Wang 0001, Yining Su, Lin Liu, Hao Zhang, Shuhong Di	Color image encryption algorithm based on Fisher-Yates scrambling and DNA subsequence operation.	Vis. Comput.	2023	DBLP DOI BibTeX RDF
16	Khalid M. Hosny, Mohamed A. Zaki, Nabil A. Lashin, Hanaa M. Hamza	Fast colored video encryption using block scrambling and multi-key generation.	Vis. Comput.	2023	DBLP DOI BibTeX RDF
16	Abdalla G. M. Ahmed, Matt Pharr, Peter Wonka	ART-Owen Scrambling.	ACM Trans. Graph.	2023	DBLP DOI BibTeX RDF
16	Kazuki Yamato, Shuntaro Fujisawa, Satoshi Ito	Deep Learning-based MRI Super-Resolution Using Non-uniform Segmented Phase-Scrambling Fourier Transform Signals.	APSIPA ASC	2023	DBLP DOI BibTeX RDF
16	Irfan Ahmad Rather, Gulshan Kumar, Rahul Saha, Tai-Hoon Kim	Enhancement of Security in GFDM Using Ebola-Optimized Joint Secure Compressive Sensing Encryption and Symbol Scrambling Model.	AICV	2023	DBLP DOI BibTeX RDF
16	Qiaochu Zhang, Hsiang-Chun Cheng, Shiyu Su, Mike Shuo-Wei Chen	A Fractional-N Digital MDLL with Injection-Error Scrambling and Background Third-Order DTC Delay Equalizer Achieving -67dBc Fractional Spur.	ISSCC	2023	DBLP DOI BibTeX RDF
16	Sujitha Sudevan, Kurunandan Jain	A Lightweight Medical Image Encryption Scheme Using Chaotic Maps and Image Scrambling.	ISDFS	2023	DBLP DOI BibTeX RDF
16	Jing Huang, Hefeng Chen, Yibei Dong	Color Image Scrambling Technique Based on Chinese Remainder Theorem and Arnold Transformation.	EITCE	2023	DBLP DOI BibTeX RDF
16	Masayoshi Tsutsui, Tatsuya Kaneko, Shinya Takamaeda-Yamazaki	Poison Egg: Scrambling Federated Learning with Delayed Backdoor Attack.	UbiSec	2023	DBLP DOI BibTeX RDF
16	Varsha Sisaudia, Virendra P. Vishwakarma	A secure gray-scale image watermarking technique in fractional DCT domain using zig-zag scrambling.	J. Inf. Secur. Appl.	2022	DBLP DOI BibTeX RDF
16	Jason Remple, Andrea Panigada, Ian Galton	An ISI Scrambling Technique for Dynamic Element Matching Current-Steering DACs.	IEEE J. Solid State Circuits	2022	DBLP DOI BibTeX RDF
16	Tongrui Peng, Behrouz Vaseghi, Somayeh Hashemi, Saleh Mobayen, Wudhichai Assawinchaichote, Afef Fekih	Nonsingular Chattering-Free Barrier Function Finite Time Tracker for Perturbed nth-Order Nonlinear Systems and its Application to Chaotic Color Image Scrambling.	IEEE Access	2022	DBLP DOI BibTeX RDF
16	Khalid M. Hosny, Mohamed A. Zaki, Hanaa M. Hamza, Mostafa M. Fouda, Nabil A. Lashin	Privacy Protection in Surveillance Videos Using Block Scrambling-Based Encryption and DCNN-Based Face Detection.	IEEE Access	2022	DBLP DOI BibTeX RDF
16	Jaephil Choi, Nam Yul Yu	Secure Image Encryption Based on Compressed Sensing and Scrambling for Internet-of-Multimedia Things.	IEEE Access	2022	DBLP DOI BibTeX RDF
16	Haifa Aldossari, Michael Mascagni	Scrambling additive lagged-Fibonacci generators.	Monte Carlo Methods Appl.	2022	DBLP DOI BibTeX RDF
16	Huiyan Zhong, Guodong Li	Multi-image encryption algorithm based on wavelet transform and 3D shuffling scrambling.	Multim. Tools Appl.	2022	DBLP DOI BibTeX RDF
16	Hakan Tora, Erhan Gokcay, Mehmet Turan, Mohamed Buker	A generalized Arnold's Cat Map transformation for image scrambling.	Multim. Tools Appl.	2022	DBLP DOI BibTeX RDF
16	Vijay Kumar Sharma, Prakash Chandra Sharma, Harsh Goud, Arjun Singh	Hilbert quantum image scrambling and graph signal processing-based image steganography.	Multim. Tools Appl.	2022	DBLP DOI BibTeX RDF
16	Khalid M. Hosny, Sara T. Kamal, Mohamed M. Darwish	A color image encryption technique using block scrambling and chaos.	Multim. Tools Appl.	2022	DBLP DOI BibTeX RDF
16	Peizhao Zhou, Shengfei Wei	A Novel Scrambling Method Based on Coupling Mode Switching Strategy for Digital Chaos.	Int. J. Bifurc. Chaos	2022	DBLP DOI BibTeX RDF
16	Johannes Pfeiffer, Robert F. H. Fischer	Design of Practical Scrambling Schemes for Physical-Layer Security.	IEEE Wirel. Commun. Lett.	2022	DBLP DOI BibTeX RDF
16	Di Xiao 0001, Aozhu Zhao, Fei Li	Robust Watermarking Scheme for Encrypted Images Based on Scrambling and Kronecker Compressed Sensing.	IEEE Signal Process. Lett.	2022	DBLP DOI BibTeX RDF
16	Aamir Sanaullah, Iram Saleem, Sat Gupta, Muhammad Hanif 0006	Mean estimation with generalized scrambling using two-phase sampling.	Commun. Stat. Simul. Comput.	2022	DBLP DOI BibTeX RDF
16	De Rosal Ignatius Moses Setiadi, Eko Hari Rachmawanto, Rahmawati Zulfiningrum	Medical Image Cryptosystem using Dynamic Josephus Sequence and Chaotic-hash Scrambling.	J. King Saud Univ. Comput. Inf. Sci.	2022	DBLP DOI BibTeX RDF
16	Amr Farahat, Felix Effenberger, Martin A. Vinck	A novel feature-scrambling approach reveals the capacity of convolutional neural networks to learn spatial relations.	CoRR	2022	DBLP DOI BibTeX RDF
16	Vaggos Chatziafratis, Ioannis Panageas, Clayton Sanford, Stelios Andrew Stavroulakis	On Scrambling Phenomena for Randomly Initialized Recurrent Networks.	CoRR	2022	DBLP DOI BibTeX RDF
16	Cristiano Pegoraro Chenet, Alessandro Savino, Stefano Di Carlo	Using analog scrambling circuits for automotive sensor integrity and authenticity.	CoRR	2022	DBLP BibTeX RDF
16	Paolo Zanardi	Quantum scrambling of observable algebras.	Quantum	2022	DBLP DOI BibTeX RDF
16	Namit Anand, Paolo Zanardi	BROTOCs and Quantum Information Scrambling at Finite Temperature.	Quantum	2022	DBLP DOI BibTeX RDF
16	Namit Anand, Paolo Zanardi	BROTOCs and Quantum Information Scrambling at Finite Temperature.	Quantum	2022	DBLP DOI BibTeX RDF
16	Liping Han, Jian Zou, Hai Li, Bin Shao	Quantum Information Scrambling in Non-Markovian Open Quantum System.	Entropy	2022	DBLP DOI BibTeX RDF
16	Yan Li, Xingli Li, Jiasen Jin	Dissipation-Induced Information Scrambling in a Collision Model.	Entropy	2022	DBLP DOI BibTeX RDF
16	Ting Wang, Bin Ge, Chenxing Xia, Gaole Dai	Multi-Image Encryption Algorithm Based on Cascaded Modulation Chaotic System and Block-Scrambling-Diffusion.	Entropy	2022	DBLP DOI BibTeX RDF
16	Zhaoxiong Guan, Junxian Li, Linqing Huang, Xiaoming Xiong, Yuan Liu 0022, Shuting Cai	A Novel and Fast Encryption System Based on Improved Josephus Scrambling and Chaotic Mapping.	Entropy	2022	DBLP DOI BibTeX RDF
16	Yaohui Sheng, Jinqing Li, Xiaoqiang Di, Xusheng Li, Rui Xu 0019	An Image Encryption Algorithm Based on Complex Network Scrambling and Multi-Directional Diffusion.	Entropy	2022	DBLP DOI BibTeX RDF
16	Ehsan Nassaji, Murwan Bashir, Dmitri V. Truhachev	Unsourced Random Access Over Fading Channels via Data Repetition, Permutation, and Scrambling.	IEEE Trans. Commun.	2022	DBLP DOI BibTeX RDF
16	Yongzhong Huang, Xueguang Bi, Yucheng Liu 0004, Yuxia Li	Development of a Novel Hyperchaos-Based Image Encryption Algorithm Consisting of Two Scrambling-Diffusion Operations.	Complex.	2022	DBLP DOI BibTeX RDF
16	Noura Sellami, Mohamed Siala 0001	Semi-blind channel estimation based on modified CMA and unitary scrambling for massive MIMO systems.	Telecommun. Syst.	2022	DBLP DOI BibTeX RDF
16	Saikat Sur, V. Subrahmanyam	Information scrambling and redistribution of quantum correlations through dynamical evolution in spin chains.	Quantum Inf. Process.	2022	DBLP DOI BibTeX RDF
16	Dan Yao, Xuanyan Bai, Shogo Katayama, Anna Kuwana, Kazuyuki Kawauchi, Haruo Kobayashi 0001, Kouji Hirai, Akira Suzuki, Satoshi Yamada, Tomoyuki Kato, Ritsuko Kitakoga, Takeshi Shimamura, Gopal Adhikari, Nobuto Ono, Kazuhiro Miura, Shigeya Yamaguchi	Unit cell mismatch scrambling method for high-resolution unary DAC based on virtual 3D layout.	IEICE Electron. Express	2022	DBLP DOI BibTeX RDF
16	Kazuki Yamato, Satoshi Ito	Super-Resolution Magnetic Resonance Imaging using Segmented Signals in Phase-Scrambling Fourier Transform Imaging and Deep Learning.	ICIP	2022	DBLP DOI BibTeX RDF
16	Cristiano Pegoraro Chenet, Alessandro Savino, Stefano Di Carlo	Using Analog Scrambling Circuits for Automotive Sensor Integrity and Authenticity.	AQTR	2022	DBLP DOI BibTeX RDF
16	Wei Gao, Xiaodong Ji, Xiqing Liu, Mugen Peng	Three-Dimensional Scrambling Code for Multi-User MIMO Systems.	VTC Spring	2022	DBLP DOI BibTeX RDF
16	Lin Wu, Jie Yu 0022, Tao Zhang 0080	Enhancement of MRI-based Signal-to-Noise Ratio with Noise Scrambling.	ICBBE	2022	DBLP DOI BibTeX RDF
16	Wei Bu, Shucui Xie	An Efficient Image Encryption Algorithm Based on Hyperchaotic and Two Times of Scrambling Diffusion.	AIPR	2022	DBLP DOI BibTeX RDF
16	Sebastian Kroeger, Svenja Korder, Robin Schneider, Michael F. Zaeh	Sequence Scrambling in Aggregated Mixed-Model Production Line Modeling.	WSC	2022	DBLP DOI BibTeX RDF
16	Zhilan Lu, Wenqing Niu, Nan Chi	A Novel Security Underwater Visible Light Communication System based on Phase Scrambling by Utilizing a Chaos Map.	WCSP	2022	DBLP DOI BibTeX RDF
16	Vaggos Chatziafratis, Ioannis Panageas, Clayton Sanford, Stelios Stavroulakis	On Scrambling Phenomena for Randomly Initialized Recurrent Networks.	NeurIPS	2022	DBLP BibTeX RDF
16	Qiaochu Zhang, Shiyu Su, Mike Shuo-Wei Chen	A cost-efficient fully synthesizable stochastic time-to-digital converter design based on integral nonlinearity scrambling.	DAC	2022	DBLP DOI BibTeX RDF
16	Xiqing Liu, Yvonne Huang, Chih-Yu Chang, Hsiao-Hwa Chen	Generalized Complementary Coded Scrambling Multiple Access for MIMO Communications.	IEEE Trans. Veh. Technol.	2021	DBLP DOI BibTeX RDF
16	Aasawari Sahasrabuddhe, Dolendro Singh Laiphrakpam	Multiple images encryption based on 3D scrambling and hyper-chaotic system.	Inf. Sci.	2021	DBLP DOI BibTeX RDF
16	Feng Yu 0007, Xinhui Gong, Hanpeng Li, Shihong Wang	Differential cryptanalysis of image cipher using block-based scrambling and image filtering.	Inf. Sci.	2021	DBLP DOI BibTeX RDF
16	Shiwei Jing, Yuan Guo, Wei Chen 0076	Meaningful ciphertext encryption algorithm based on bit scrambling, discrete wavelet transform, and improved chaos.	IET Image Process.	2021	DBLP DOI BibTeX RDF
16	Hong-Zhu Dai, Jie Cheng, Yafeng Li	A Novel Steganography Algorithm Based on Quantization Table Modification and Image Scrambling in DCT Domain.	Int. J. Pattern Recognit. Artif. Intell.	2021	DBLP DOI BibTeX RDF
16	S. Jeevitha, N. Amutha Prabha	Novel medical image encryption using DWT block-based scrambling and edge maps.	J. Ambient Intell. Humaniz. Comput.	2021	DBLP DOI BibTeX RDF
16	Koki Madono, Masayuki Tanaka 0001, Masaki Onishi, Tetsuji Ogawa	SIA-GAN: Scrambling Inversion Attack Using Generative Adversarial Network.	IEEE Access	2021	DBLP DOI BibTeX RDF
16	Zubair Jeelani, Fasel Qadir, Gulnawaz Gani	Cellular automata-based digital image scrambling under JPEG compression attack.	Multim. Syst.	2021	DBLP DOI BibTeX RDF
16	Xingyuan Wang, Lin Liu	Application of chaotic Josephus scrambling and RNA computing in image encryption.	Multim. Tools Appl.	2021	DBLP DOI BibTeX RDF
16	Zhenjie Bao, Ru Xue, Yadong Jin	Image scrambling adversarial autoencoder based on the asymmetric encryption.	Multim. Tools Appl.	2021	DBLP DOI BibTeX RDF
16	Uzair Aslam Bhatti, Linwang Yuan, Zhaoyuan Yu, Jingbing Li, Saqib Ali Nawaz, Anum Mehmood, Kun Zhang 0011	New watermarking algorithm utilizing quaternion Fourier transform with advanced scrambling and secure encryption.	Multim. Tools Appl.	2021	DBLP DOI BibTeX RDF
16	Kaiyun Ma, Lin Teng, Xingyuan Wang 0001, Juan Meng	Color image encryption scheme based on the combination of the fisher-yates scrambling algorithm and chaos theory.	Multim. Tools Appl.	2021	DBLP DOI BibTeX RDF
16	Chun-Lai Li, Yang Zhou, Hong-Min Li, Wei Feng 0011, Jian-Rong Du	Image encryption scheme with bit-level scrambling and multiplication diffusion.	Multim. Tools Appl.	2021	DBLP DOI BibTeX RDF
16	Neda Dolati, Ali Asghar Beheshti Shirazi, Hamid Azadegan	A selective encryption for H.264/AVC videos based on scrambling.	Multim. Tools Appl.	2021	DBLP DOI BibTeX RDF
16	Xiaopeng Yan, Xingyuan Wang 0001, Yongjin Xian	Chaotic image encryption algorithm based on arithmetic sequence scrambling model and DNA encoding operation.	Multim. Tools Appl.	2021	DBLP DOI BibTeX RDF
16	Tomoya Kageyama, Osamu Muta	Partial Scrambling Overlapped Selected Mapping PAPR Reduction for OFDM/OQAM Systems.	IEICE Trans. Commun.	2021	DBLP BibTeX RDF
16	Sangjoon Park	Artificial Error-Based Code Scrambling Scheme for Secure Communications in Wiretap Channels with Channel Reciprocity.	IEICE Trans. Fundam. Electron. Commun. Comput. Sci.	2021	DBLP DOI BibTeX RDF
16	Xingyuan Wang 0001, Suo Gao, Xiaolin Ye, Shuang Zhou 0014, Mingxu Wang	A New Image Encryption Algorithm with Cantor Diagonal Scrambling Based on the PUMCML System.	Int. J. Bifurc. Chaos	2021	DBLP DOI BibTeX RDF
16	Yiftach Savransky, Roni Mateless, Gilad Katz	Secure Machine Learning in the Cloud Using One Way Scrambling by Deconvolution.	CoRR	2021	DBLP BibTeX RDF
16	Tatsuya Chuman, Hitoshi Kiya	Block Scrambling Image Encryption Used in Combination with Data Augmentation for Privacy-Preserving DNNs.	CoRR	2021	DBLP BibTeX RDF
16	Xiaoming Song, Daihan Xu, Guodong Li, Wenxia Xu	Multi-image Reorganization Encryption Based on S-L-F Cascade Chaos and Bit Scrambling.	J. Web Eng.	2021	DBLP DOI BibTeX RDF
16	Amol B. Kotade, Anil B. Nandgaonkar, Sanjay L. Nalbalwar, Abhay Wagh	Enhancing the power efficiency of 5G portable standard devices using peak-to-average power ratio reduction technique based on data scrambling.	Wirel. Networks	2021	DBLP DOI BibTeX RDF
16	Zubair Jeelani, Fasel Qadir	A comparative study of cellular automata-based digital image scrambling techniques.	Evol. Syst.	2021	DBLP DOI BibTeX RDF
16	Tao Wang 0018, Hongchang Chen	A Lightweight SDN Fingerprint Attack Defense Mechanism Based on Probabilistic Scrambling and Controller Dynamic Scheduling Strategies.	Secur. Commun. Networks	2021	DBLP DOI BibTeX RDF
16	Li-Hua Gong, Jin Du, Jing Wan, Nan-Run Zhou	Image Encryption Scheme Based on Block Scrambling, Closed-Loop Diffusion, and DNA Molecular Mutation.	Secur. Commun. Networks	2021	DBLP DOI BibTeX RDF