Cited by 77Visual Attention and Saliency DetectionVisual perception and processing mechanismsDomain Adaptation and Few-Shot Learning

From simple innate biases to complex visual concepts

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Ullman, Shimon, Harari, Daniel, Dorfman, Nimrod·2012·Proceedings of the National Academy of Sciences

Abstract

Early in development, infants learn to solve visual problems that are highly challenging for current computational methods. We present a model that deals with two fundamental problems in which the gap between computational difficulty and infant learning is particularly striking: learning to recognize hands and learning to recognize gaze direction. The model is shown a stream of natural videos and learns without any supervision to detect human hands by appearance and by context, as well as direction of gaze, in complex natural scenes. The algorithm is guided by an empirically motivated innate mechanism--the detection of "mover" events in dynamic images, which are the events of a moving image region causing a stationary region to move or change after contact. Mover events provide an internal teaching signal, which is shown to be more effective than alternative cues and sufficient for the efficient acquisition of hand and gaze representations. The implications go beyond the specific tasks, by showing how domain-specific "proto concepts" can guide the system to acquire meaningful concepts, which are significant to the observer but statistically inconspicuous in the sensory input.

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  • Pre-specification of mutual supervision signals can make learning the relevant features of the world far easier, by giving an otherwise unsupervised learner the right kinds of hints or heuristic biases at the right times.

    “Their broader claim is that such pre-specification of mutual supervision signals can make learning the relevant features of the world far easier, by giving an otherwise unsupervised learner the right kinds of hints or heuristic biases at the right times.”

    From Toward an integration of deep learning and neuroscience (2016) · cites this paper as Ullman et al., 2012

  • Ullman's hand detector operates via a simple local optical flow calculation to detect 'mover' events.

    “Ullman's hand detector, in fact, operates via a simple local optical flow calculation to detect “mover” events.”

    From Toward an integration of deep learning and neuroscience (2016) · cites this paper as Ullman et al., 2012

  • Special internally generated signals are needed for learning problems where standard unsupervised methods fail to discover properties of the world that are statistically weak but significant to the organism.

    “Special, internally-generated signals are needed specifically for learning problems where standard unsupervised methods—based purely on matching the statistics of the world, or on optimizing simple mathematical objectives like temporal continuity or sparsity—will fail to discover properties of the world which are statistically weak in an objective sense but nevertheless have special significance”

    From Toward an integration of deep learning and neuroscience (2016) · cites this paper as Ullman et al., 2012

  • Hands are important because they allow us to learn about the set of actions that can be produced by agents.

    “Hands are important because they allow us to learn about the set of actions that can be produced by agents (Ullman et al., 2012).”

    From Toward an integration of deep learning and neuroscience (2016) · cites this paper as Ullman et al., 2012

  • In Ullman et al. (2012), appearance, body context, and mover motion are all used to bootstrap off of one another, creating a detector that is better than any of its training heuristics.

    “In Ullman et al. (2012), appearance, body context, and mover motion are all used to bootstrap off of one another, creating a detector that is better than any of its training heuristics.”

    From Toward an integration of deep learning and neuroscience (2016) · cites this paper as Ullman et al., 2012

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Authors
Ullman, S., Harari, D., & Dorfman, N.
Affiliations
Weizmann Institute of Science (IL)
Venue
Proceedings of the National Academy of Sciences
Published
2012-09-24
Volume
109
Issue
44
Pages
18215-18220
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2023906772
Cited by
77
References
53
Citations by year
2026: 2 · 2025: 3 · 2024: 2 · 2023: 4 · 2022: 13 · 2021: 6 · 2020: 3 · 2019: 9 · 2018: 10 · 2017: 2 · 2016: 9 · 2015: 4 · 2014: 5 · 2013: 4 · 2012: 1
FWCI
4.61
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Visual Attention and Saliency Detection
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Visual perception and processing mechanisms
  • Physical Sciences › Computer Science › Artificial Intelligence › Domain Adaptation and Few-Shot Learning
Keywords
hand detection, unsupervised learning, dynamic scene analysis
MeSH terms
Hand, Humans, Task Performance and Analysis, Visual Perception

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