Program merging

Requred dependencies

1. Ikarus or Vicare Scheme
2. SWI-Prolog

For grammar induction of 3D scenes + generating programs from webpages using the Bento webpage segmentation service:

3. Petite Chez Scheme
4. Python

Installation steps

0. Install the above dependencies.

1. Clone the repository to of your choice. Add /scheme to your IKARUS_LIBRARY_PATH or VICARE_LIBRARY_PATH environment variable, depending on your usage of Ikarus or Vicare, respectively.

2. Go to /pyxml2prog directory. Issue

    sh install.sh
   

How to use

Program induction example

To get started, run/read

ikarus --script examples/basic-program-merge/sg-learn.ss

to get an idea of what it does. The basic structure:

(import (beam-learning))

(define test-data (list <example1> <example2> ... ))

(define learned-program (learn-model test-data <beam-width> <depth-counter>)

Grammar induction (Python interface)

Contained in bpm/examples/grammar-induction/grammar-induction.py:

python grammar-induction.py <name-of-model> <model-scale> <beam-width> <likelihood-weight> <prior-weight> <dirichlet-parameter-alpha> <num-threads>

Python/Bento interface for webpage layout analysis

There are three ways to induce programs from webpages: remotely pulling them from a file containing a list of pages, and using Bento to convert to XML, doing the same to a single remote site, or analyzing a single XML representation of a webpage:

from pyxml2prog import *

def multiple_test():
    run_multiple_from_pagelist("ex_pagelist.txt")

def single_remote_test():
    page2prog_remote("http://www.google.com", "remote.ss")

def single_local_test():
    page2prog_remote("ex_local.xml", "local.ss")