Shahreyar Ashraf

Mission Index

Projects and Technical Case Studies

Every card opens a detailed mission brief with stack, impact, architecture bullets, and image direction prompts.

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Neon telemetry lines over a dark operations grid

Mission

Real-time Log Anomaly Detection

A hybrid anomaly detection system for high-velocity logs that combines statistical baselines with transformer sequence modeling.

PyTorchDrain3scikit-learnIsolation Forest
  • Reduced false positives with adaptive thresholding in streaming pipelines.
  • Modeled contextual event dependencies beyond frequency-only methods.
Open Case StudySource
Layered transformer blocks and vector fields in neon

Mission

LLM Alignment and Optimization

From-scratch language model implementation and preference alignment pipeline with low-rank adaptation for efficient fine-tuning.

PyTorchLoRADPOHugging Face
  • Cut trainable parameters by 99% with targeted LoRA adaptation.
  • Implemented DPO alignment workflow across the final transformer layers.
Open Case StudySource
Network graph constellation with temporal links

Mission

Graph Neural Networks (Temporal and Spectral)

A set of graph-learning systems spanning ST-GCN forecasting, spectral regularization, and policy optimization with GraphSAGE.

PyTorch GeometricGraphSAGEGCNST-GCN
  • Improved MUTAG generalization by 7.5% via spectral regularization.
  • Modeled traffic dynamics on a 100-node grid with spatio-temporal learning.
Open Case StudySource
Diffusion particles converging into generated forms

Mission

Deep Generative Modeling

A practical generative modeling lab covering DDPM diffusion, CLIP-guided sampling, beta-VAE disentanglement, and PixelCNN.

PyTorchDDPMCLIPVAE
  • Built a full DDPM training and reverse-sampling loop from scratch.
  • Guided generation with text-conditioned CLIP losses.
Open Case StudySource
Digital marketplace nodes exchanging assets

Mission

Barter Ease

A cross-platform product exchange app with secure identity, mixed SQL/NoSQL persistence, and scalable cloud deployment.

React NativeAWS EC2AWS CognitoSQL
  • Delivered secure identity and transaction flows for exchange operations.
  • Optimized throughput for high-velocity exchange requests.
Open Case StudySource