AUTOMAT[R]IX: learning simple matrix pipelines

[EN] Matrices are a very common way of representing and working with data in data science and artificial intelligence. Writing a small snippet of code to make a simple matrix transformation is frequently frustrating, especially for those people without an extensive programming expertise. We present...

Full description

Bibliographic Details
Authors: Contreras-Ochando, Lidia, Ferri Ramírez, César|||0000-0002-8975-1120, Hernández-Orallo, José|||0000-0001-9746-7632
Format: article
Publication Date:2021
Country:España
Institution:Universitat Politècnica de València (UPV)
Repository:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Language:English
OAI Identifier:oai:riunet.upv.es:10251/183987
Online Access:https://riunet.upv.es/handle/10251/183987
Access Level:Open access
Keyword:Automating data science
Inductive programming
Program synthesis
LENGUAJES Y SISTEMAS INFORMATICOS
CIENCIAS DE LA COMPUTACION E INTELIGENCIA ARTIFICIAL
Description
Summary:[EN] Matrices are a very common way of representing and working with data in data science and artificial intelligence. Writing a small snippet of code to make a simple matrix transformation is frequently frustrating, especially for those people without an extensive programming expertise. We present AUTOMAT[R]IX, a system that is able to induce R program snippets from a single (and possibly partial) matrix transformation example provided by the user. Our learning algorithm is able to induce the correct matrix pipeline snippet by composing primitives from a library. Because of the intractable search space-exponential on the size of the library and the number of primitives to be combined in the snippet, we speed up the process with (1) a typed system that excludes all combinations of primitives with inconsistent mapping between input and output matrix dimensions, and (2) a probabilistic model to estimate the probability of each sequence of primitives from their frequency of use and a text hint provided by the user. We validate AUTOMAT[R]IX with a set of real programming queries involving matrices from Stack Overflow, showing that we can learn the transformations efficiently, from just one partial example