Search Results for author: Moacir Ponti

Found 6 papers, 2 papers with code

Scene Designer: a Unified Model for Scene Search and Synthesis from Sketch

no code implementations16 Aug 2021 Leo Sampaio Ferraz Ribeiro, Tu Bui, John Collomosse, Moacir Ponti

Scene Designer is a novel method for searching and generating images using free-hand sketches of scene compositions; i. e. drawings that describe both the appearance and relative positions of objects.

Contrastive Learning

A Visual Mining Approach to Improved Multiple-Instance Learning

no code implementations14 Dec 2020 Sonia Castelo, Moacir Ponti, Rosane Minghim

Multiple-instance learning (MIL) is a paradigm of machine learning that aims to classify a set (bag) of objects (instances), assigning labels only to the bags.

Multiple Instance Learning

Sketchformer: Transformer-based Representation for Sketched Structure

1 code implementation CVPR 2020 Leo Sampaio Ferraz Ribeiro, Tu Bui, John Collomosse, Moacir Ponti

Sketchformer is a novel transformer-based representation for encoding free-hand sketches input in a vector form, i. e. as a sequence of strokes.

Dictionary Learning General Classification +1

Generalisation and Sharing in Triplet Convnets for Sketch based Visual Search

no code implementations16 Nov 2016 Tu Bui, Leonardo Ribeiro, Moacir Ponti, John Collomosse

We propose and evaluate several triplet CNN architectures for measuring the similarity between sketches and photographs, within the context of the sketch based image retrieval (SBIR) task.

Data Augmentation Dimensionality Reduction +2

An incremental linear-time learning algorithm for the Optimum-Path Forest classifier

no code implementations12 Apr 2016 Moacir Ponti, Mateus Riva

We present a classification method with incremental capabilities based on the Optimum-Path Forest classifier (OPF).

General Classification

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