Extreme Value Theory-Based Methods for Visual Recognition (Synthesis Lectures on Computer Vision)
暫譯: 基於極值理論的視覺識別方法(計算機視覺綜合講座)
Walter J. Scheirer
- 出版商: Morgan & Claypool
- 出版日期: 2017-02-15
- 售價: $2,080
- 貴賓價: 9.5 折 $1,976
- 語言: 英文
- 頁數: 132
- 裝訂: Paperback
- ISBN: 1627057005
- ISBN-13: 9781627057004
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相關分類:
Computer Vision
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商品描述
A common feature of many approaches to modeling sensory statistics is an emphasis on capturing the "average." From early representations in the brain, to highly abstracted class categories in machine learning for classification tasks, central-tendency models based on the Gaussian distribution are a seemingly natural and obvious choice for modeling sensory data. However, insights from neuroscience, psychology, and computer vision suggest an alternate strategy: preferentially focusing representational resources on the extremes of the distribution of sensory inputs. The notion of treating extrema near a decision boundary as features is not necessarily new, but a comprehensive statistical theory of recognition based on extrema is only now just emerging in the computer vision literature. This book begins by introducing the statistical Extreme Value Theory (EVT) for visual recognition. In contrast to central-tendency modeling, it is hypothesized that distributions near decision boundaries form a more powerful model for recognition tasks by focusing coding resources on data that are arguably the most diagnostic features. EVT has several important properties: strong statistical grounding, better modeling accuracy near decision boundaries than Gaussian modeling, the ability to model asymmetric decision boundaries, and accurate prediction of the probability of an event beyond our experience. The second part of the book uses the theory to describe a new class of machine learning algorithms for decision making that are a measurable advance beyond the state-of-the-art. This includes methods for post-recognition score analysis, information fusion, multi-attribute spaces, and calibration of supervised machine learning algorithms.
商品描述(中文翻譯)
許多感知統計建模方法的共同特徵是強調捕捉「平均值」。從大腦中的早期表徵,到機器學習中用於分類任務的高度抽象類別,基於高斯分佈的中心趨勢模型似乎是建模感知數據的自然且明顯的選擇。然而,來自神經科學、心理學和計算機視覺的見解則提出了一種替代策略:優先將表徵資源集中於感知輸入分佈的極端值。將接近決策邊界的極端值視為特徵的概念並不一定是新的,但基於極端值的全面統計識別理論在計算機視覺文獻中才剛剛出現。本書首先介紹了用於視覺識別的統計極端值理論(Extreme Value Theory, EVT)。與中心趨勢建模相對,本書假設接近決策邊界的分佈形成了一個更強大的識別任務模型,因為它將編碼資源集中於那些可以說是最具診斷性的特徵數據。EVT具有幾個重要特性:強大的統計基礎、在決策邊界附近比高斯建模更好的建模準確性、建模不對稱決策邊界的能力,以及準確預測超出我們經驗的事件概率。本書的第二部分利用該理論描述了一類新的機器學習算法,用於決策制定,這些算法在可測量的程度上超越了當前的最先進技術。這包括後識別分數分析、信息融合、多屬性空間以及監督式機器學習算法的校準方法。