ARTC - Adaptive Regression Tensor Compression

A family of compression algorithms optimized for different use cases.

(WIP - ARTC-LITE 0.1.0 and General ARTC 0.1.0)

Variants

ARTC 1.0.0: General Adaptive Regression Tensor Compression

For: Any data, any use case

ARTC-PREDICT: General Adaptive Regression Tensor Compression for Prediction

For: Based on a EKF to predict future values, and then compresses the error between the prediction and the actual value. Benefits:

• Very High compression on predictable data
• Low RAM usage
• Fast

ARTC-LITE: Lightweight IoT Tensor Encoding

For: IoT sensors, embedded devices, battery-powered systems

from artc import ARTCLITE

# Temperature sensor example
compressor = ARTCLITE(block_size=8, tolerance=0.1)
compressed = compressor.compress(sensor_data)
compressor.print_stats()

Benefits:

• 2-10× compression on smooth sensor data
• Minimal RAM usage (~50 bytes)
• Fast (< 1ms per block)
• Easy to port to C/Arduino

ARTC-VRAM (Coming Soon)

For: GPU memory compression, fitting bigger AI models

ARTC - FLEX (Coming Soon)

For: Formula-based Lightweight Efficient eXtended (memory) - ARTC for AI/MLs for GPUs.

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VERSION PROGRESSION FOR ARTC:

• 0.0.1 (Initial concept)
• 0.0.2 (Proof of concept)
• 0.0.3 (PIP Deployment Alpha)
• 0.0.4 (Beta)
• 0.0.5 (Pre-release)
• 0.0.6 (Release candidate)
• 0.0.7 (Bug fixes)
• 0.0.8 (Optimizations)
• 0.0.9 (Documentation)
• 0.1.0 (ARTC-LITE and General ARTC)
• 1.0.0 (General Adaptive Regression Tensor Compression) ======
• 1.1.0 (ARTC Stable Deployment)

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Installation

pip install artc

Or install from source:

git clone https://github.com/169B/artc.git
cd artc
pip install -e .

How It Works

ARTC-LITE finds patterns in smooth data by fitting simple formulas.

Input:  [20.0, 20.5, 21.0, 21.5, 22.0, 22.5, 23.0, 23.5]  (32 bytes)
Pattern: Goes up by 0.5 each time
Formula: y = 0.5x + 20.0
Stored:   m=0.5, b=20.0  (8 bytes)
Result:  4× smaller

COMPRESSION PIPELINE: ────────────────────────────────────────────────────────────────

1. MEMORY FETCH (GPU → CPU or within GPU) ├── Read block of data from memory ├── Cost: Memory bandwidth limited └── Time: ~0.1ms per block

2. COMPUTE REGRESSION ├── Calculate: Σ(xy), Σ(x²), means, etc. ├── Cost: Floating point operations └── Time: ~0.01ms per block

3. ERROR CHECKING ├── Predict all points: y = mx + b ├── Calculate: |actual - predicted| ├── Find max error └── Time: ~0.01ms per block

4. DECISION & ENCODE ├── If error < tolerance: store (m,b) ├── Else: store raw data └── Time: ~0.001ms

5. MEMORY WRITE (back to storage) ├── Write compressed data └── Time: ~0.05ms

TOTAL PER BLOCK: ~0.17ms

DECOMPRESSION PIPELINE: ────────────────────────────────────────────────────────

1. MEMORY FETCH ├── Read compressed data (m, b) or raw └── Time: ~0.05ms

2. DECODE ├── Check type: formula or raw? ├── If formula: compute y = m*x + b for all points ├── If raw: copy directly └── Time: ~0.02ms

3. MEMORY WRITE ├── Write decompressed data └── Time: ~0.1ms

TOTAL PER BLOCK: ~0.17ms

Comparison

Method	Sensor Data	Random Data	Speed	RAM
ARTC-LITE	2-10×	~1×	*~50 bytes
GZIP	1.1×	1-2×	Medium	~32 KB

License

GNU Generic 3.0