English

QRtree -- Decision Tree dialect specification of QRscript

Networking and Internet Architecture 2024-03-08 v1 Human-Computer Interaction Programming Languages

Abstract

This specification document specifies the syntax and semantics of QRtree, which is a specific dialect of QRscript particularly suited to represent decision trees without chance nodes. The term dialect identifies one of the possible sub-languages that can be encoded inside of an eQR code via QRscript. This specification will describe an intermediate representation of QRtree, made through a language derived by the three-address code. It will then define the transformation rules from the intermediate representation to a binary code. The latter is a binary representation called eQRtreebytecode. These rules can also be applied inversely to transform the eQRtreeBytecode into the intermediate representation. This specification document will pay particular attention to the creation of a compact eQRtreebytecode, as the maximum number of bits that can be stored in a QR code is, at the time of writing, equal to 2953 bytes (in the case of QR code version 40 with a "low" error correction level).

Cite

@article{arxiv.2403.04716,
  title  = {QRtree -- Decision Tree dialect specification of QRscript},
  author = {Stefano Scanzio and Matteo Rosani and Mattia Scamuzzi and Gianluca Cena},
  journal= {arXiv preprint arXiv:2403.04716},
  year   = {2024}
}

Comments

Specification document, 32 pages

R2 v1 2026-06-28T15:12:40.359Z