Roozbeh Siyadatzadeh: notes and publicationsRoozbeh Siyadatzadeh is a PhD candidate at Leiden University working on hardware security for embedded AI: power side-channel analysis of analog in-memory computing, model extraction, FPGA and RISC-V systems, and dependable real-time computing.https://roozbeh.nl/enP2W: From Power Traces to Weights Matrix - An Unconventional Transfer Learning Approach (ACM SAC 2026)https://roozbeh.nl/publications/p2w-power-traces-to-weights/https://roozbeh.nl/publications/p2w-power-traces-to-weights/Turns power traces captured from an embedded SoC into an approximate weight matrix that initialises a new model when the original model and its training data are out of reach.Mon, 23 Mar 2026 00:00:00 GMTpublicationEmbedded machine learningPower side channelsTransfer learningModel extractionSystem-on-chipA Security Analysis of CNN Partitioning Strategies for Distributed Inference at the Edge (SPACE 2025 (LNCS))https://roozbeh.nl/publications/security-analysis-cnn-partitioning-edge/https://roozbeh.nl/publications/security-analysis-cnn-partitioning-edge/Compares vertical, horizontal, and data partitioning of CNNs across edge devices against an eavesdropper who reconstructs the input image from intercepted intermediate data.Thu, 12 Feb 2026 00:00:00 GMTpublicationDistributed edge AICNN securityModel partitioningInput reconstructionPrivacyTraceFormer: A Transformer-Based Method for Weight Extraction from AIMC Tiles (Euromicro DSD 2025)https://roozbeh.nl/publications/traceformer-weight-extraction-aimc/https://roozbeh.nl/publications/traceformer-weight-extraction-aimc/Shows that the weights stored in an analog in-memory computing tile can be recovered from the power consumption of its ADCs, using a Transformer and an input-controlled weight-isolation technique.Wed, 10 Sep 2025 00:00:00 GMTpublicationAnalog in-memory computingHardware securityPower side channelsTransformersWeight extractionSecurity Challenges in Analog In-Memory Computinghttps://roozbeh.nl/blog/imc-security/https://roozbeh.nl/blog/imc-security/How ADC power leakage can expose weights stored in analog in-memory-computing accelerators, and what that means for secure edge AI.Sun, 15 Dec 2024 00:00:00 GMTnotehardware-securityaimcside-channel-analysisFrom Power Traces to Model Weights: P2W and TraceFormerhttps://roozbeh.nl/blog/weight-extraction/https://roozbeh.nl/blog/weight-extraction/Two research methods for learning about embedded neural-network weights through physical power side channels.Thu, 28 Nov 2024 00:00:00 GMTnotehardware-securityembedded-mlside-channel-analysisReinforcement Learning for Reliable Real-Time Fog Systemshttps://roozbeh.nl/blog/rl-realtime/https://roozbeh.nl/blog/rl-realtime/How ReLIEF assigns primary and backup tasks while balancing deadlines, failures, communication delay, and fog-node workload.Sat, 12 Oct 2024 00:00:00 GMTnotereinforcement-learningreal-time-systemsfog-computingPhase-Change Memory for Analog In-Memory Computinghttps://roozbeh.nl/blog/pcm-future/https://roozbeh.nl/blog/pcm-future/A practical introduction to PCM conductance, neural-network acceleration, engineering trade-offs, and physical security.Thu, 05 Sep 2024 00:00:00 GMTnotephase-change-memoryaimchardware-securityMy Journey from Bushehr to Leidenhttps://roozbeh.nl/blog/academic-journey/https://roozbeh.nl/blog/academic-journey/Reflections on my academic path from Bushehr to the Netherlands.Thu, 18 Jul 2024 00:00:00 GMTnotepersonalacademiaReLIEF: A Reinforcement-Learning-Based Real-Time Task Assignment Strategy in Emerging Fault-Tolerant Fog Computing (IEEE IoT Journal)https://roozbeh.nl/publications/relief-rl-task-assignment-fog/https://roozbeh.nl/publications/relief-rl-task-assignment-fog/Reinforcement learning assigns primary and backup copies of real-time tasks to fog nodes, balancing communication delay against the workload on each device.Thu, 15 Jun 2023 00:00:00 GMTpublicationReinforcement learningFog computingReal-time systemsFault toleranceResource allocationATLAS: Aging-Aware Task Replication for Multicore Safety-Critical Systems (IEEE RTAS 2023)https://roozbeh.nl/publications/atlas-aging-aware-task-replication/https://roozbeh.nl/publications/atlas-aging-aware-task-replication/Aging-aware task replication that keeps periodic hard real-time tasks at their reliability target over a multicore system’s lifetime while limiting the temperature that accelerates aging.Tue, 09 May 2023 00:00:00 GMTpublicationReal-time systemsSafety-critical systemsTask replicationProcessor agingThermal managementPassive Primary/Backup-Based Scheduling for Simultaneous Power and Reliability Management on Heterogeneous Embedded Systems (IEEE T-SUSC)https://roozbeh.nl/publications/passive-primary-backup-scheduling-heterogeneous/https://roozbeh.nl/publications/passive-primary-backup-scheduling-heterogeneous/Passive primary/backup scheduling on heterogeneous multicores that mixes task mapping across core types and runs backups after primaries to remove execution overlap.Sun, 01 Jan 2023 00:00:00 GMTpublicationHeterogeneous multicore systemsReal-time schedulingFault toleranceEnergy efficiencyReliability