docs/PROJECT_TIMELINE.md

📅 PROJECT_TIMELINE.md

AI-Driven Polymer Aging Prediction and Classification System

Intern: Jaser Hasan

✅ PHASE 1 – Project Kickoff and Faculty Guidance

Tag: @project-init-complete

Received first set of research tasks from Prof. Kuppannagari

• Reeived research plan
• Objectives defined: download datasets, analyze spectra, implement CNN, run initial inference

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✅ PHASE 2 – Dataset Acquisition (Local System)

Tag: @data-downloaded

• Downloaded Raman .txt (RDWP) and FTIR .csv data (polymer packaging)
• Structured into:
• datasets/rdwp
• datasets/ftir

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✅ PHASE 3 – Data Exploration & Spectral Validation

Tag: @data-exploration-complete

• Built plotting tools for Raman and FTIR
• Validated spectrum structure, removed malformed samples
• Observed structural inconsistencies in FTIR multi-layer grouping

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✅ PHASE 4 – Preprocessing Pipeline Implementation

Tag: @data-prep

• Implemented preprocess_dataset.py for Raman
• Applied: Resampling -> Baseline correction -> Smoothing -> Normalization
• Confirmed reproducible input/output behavior and dynamic CLI control

✅ PHASE 5 – Figure2CNN Architecture Build

Tag: @figure2cnn-complete

• Constructed Figure2CNN modeled after Figure 2 CNN from research paper
• Figure2CNN: 4 conv layers + 3 FC layers
• Verified dynamic input length handling (e.g., 500, 1000, 4000)

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✅ PHASE 6 – Local Training and Inference

Tag: @figure2cnn-training-local

• Trained Raman models locally (FTIR now deferred)
• Canonical Raman accuracy: 87.29% ± 6.30%
• FTIR accuracy results archived and excluded from current validation
• CLI tools for training, inference, plotting implemented

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✅ PHASE 7 – Reproducibility and Documentation Setup

Tag: @project-docs-started

• Authored README.md, PROJECT_REPORT.md, and ENVIRONMENT_GUIDE.md
• Defined reproducibility guidelines
• Standardized project structure and versioning

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✅ PHASE 8 – HPC Access and Venv Strategy

Tag: @hpc-login-successful

• Logged into CWRU Pioneer (SSH via PuTTY)
• Setup up FortiClient VPN as it is required to access Pioneer remotely
• Explored module system; selected venv over Conda for compatibility
• Loaded Python 3.12.3 + created polymer_env

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✅ PHASE 9 – HPC Environment Sync

Tag: @venv-alignment-complete

• Created environment_hpc.yml
• Installed dependencies into polymer_env
• Validated imports, PyTorch installation, and CLI script execution

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✅ PHASE 10 – Full Instruction Validation on HPC

Tag: @prof-k-instruction-validation-complete

• Ran Raman preprocessing and plotting scripts
• Executed run_inference.py with CLI on raw Raman .txt file
• Verified consistent predictions and output logging across local and HPC

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✅ PHASE 11 – FTIR Path Paused, Raman Declared Primary

Tag: @raman-pipeline-focus-milestone

• FTIR modeling formally deferred
• FTIR preprocessing scripts preserved and archived for future use
• All resources directed toward Raman pipeline finalization
• Saliency, FTIR ingestion, and train_ftir_model.py archived

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✅ PHASE 12 – ResNet1D Prototyping & Benchmark Setup

Tag: @resnet-prototype-complete

• Built ResNet1D architecture in models/resnet_cnn.py
• Integrated train_model.py via --model resnet
• Ran initial CV training with successful results

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✅ PHASE 13 – Output Artifact Isolation

Tag: @artifact-isolation-complete

• Patched train_model.py to save:
  • figure2_model.pth, resnet_model.pth
  • raman_figure2_diagnostics.json. raman_resnet_diagnostics.json
• Prevented all overwrites by tying output filenames to args.model
• Snapshotted as reproducibility milestone. Enabled downstream validation harness.

✅ PHASE 14 – Canonical Validation Achieved

Tag: @validation-loop-complete

• Created validate_pipeline.sh to verify preprocessing, training, inferece, plotting
• Ran full validation using Figure2CNN with reproducible CLI config
• All ouputs verified: logs, artifacts, predictions, plots
• Declared Raman pipeline scientifically validated and stable

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⏭️ NEXT - Results Analysis & Finalization

• Analyze logged diagnostics for both models
• Conduct optional hyperparameter tuning (batch size, LR)
• Begin deliverable prep: visuals, posters, cards
• Resume FTIR work only after Raman path is fully stablized and documented & open FTIR conceptual error is resolved