Tag Archives: classification
Correspondences
Binford, O.T. & Nevatia, R (1977) Description and Recognition of Curved Objects, Artificial Intelligence 8(1):77-98.
Native contours
In this experiment [Hochberg & Brooks, 1962], a human baby was raised until the age of 19 months under the constant supervision of his parents who avoided exposing the child to line-drawings or two-dimensional pictures of any kind. Although the baby accidentally had opportunities to glance at some pictures on a few occasions, at no […]
Regression = prediction
[…] these sorts of problems break down into two types: regression problems, in which you need to predict some number, such as weight, given a bunch of other numbers, such as height; and classification problems, in which you need to assign a label, such as spam, given a bunch of numbers, for examples word counts […]
Green Mamba
Tensorflow, an open source library for Machine Learning developed by Google, comes with a demo program that labels images. The output of the program contains the labels (or class names) and their scores. The score represents the probability of the image to belong to a certain class. green mamba (score = 0.43074) vine snake (score […]
Bochman’s face recognition system
The Major Bochmann was head of the passport division on the Eastern side of Checkpoint Charlie […]. He developed a facial recognition system, designed to teach the border guards to scrutinize faces and look for features that cannot be altered. The aim was to assess the authenticity of passport photos for those who were trying […]
Computational linguistics as seen by Stanislaw Lem
One day Trurl the constructor put together a machine that could create anything starting with n. When it was ready, he tried it out, ordering it to make needles, then nankeens and negligees, which it did, then nail the lot to narghiles filled with nepenthe and numerous other narcotics. The machine carried out his instructions […]
Francis Galton’s Composite Portraiture meets Wittgenstein’s camera
Galton also devised a technique called “composite portraiture” (produced by superimposing multiple photographic portraits of individuals’ faces registered on their eyes) to create an average face. In the 1990s, a hundred years after his discovery, much psychological research has examined the attractiveness of these faces, an aspect that Galton had remarked on in his original […]
250 000 labels
This document, edited by Antonio Torralba, contains the notes written by Adela Barriuso describing her experience while using the LabelMe annotation tool. Mrs Barriuso has no training in computer vision. In 2007 she started to use LabelMe to systematically annotate the SUN database. The goal was to build a large database of images with all […]
The index at work
Erasmus censored The censorship of books by the Catholic Church has been a complex process. The list of books to be banned is first compiled in an Index, the Index Librorum Prohibitorum. Then the books are physically altered. Various censored specimens have been kept and give us the chance to see the index at work.