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関連する概念動画

Self-Awareness and Its Effects01:21

Self-Awareness and Its Effects

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Self-awareness is a psychological state in which the individual becomes the focal point of their attention. This inward focus transforms the self into an object of contemplation and assessment, influencing how individuals perceive their actions and their alignment with personal and societal standards.Triggers and Contexts for Self-AwarenessSelf-awareness can be activated by external stimuli that make individuals visually or audibly aware of themselves, such as mirrors, cameras, or recordings.
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Ranks01:02

Ranks

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Unlike parametric methods, nonparametric statistics are ideal for nominal and ordinal data, requiring fewer assumptions about the population's nature or distribution. This makes nonparametric methods easier to apply and interpret, as they do not depend on parameters like mean or standard deviation. One common approach in nonparametric analysis is to sort data according to a specific criterion. For instance, we might arrange weather data from hottest to coldest days in a month or rank cities...
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Altered states of consciousness represent significant deviations from one's normal mental state. These deviations can range from subtle changes in awareness to profound transformations in perception, thought processes, and sensory experiences. Altered states of consciousness can be triggered by various factors, including drug use, meditation, hypnosis, illness, or even intense fatigue.
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The concept of subconscious awareness refers to the processing of information below the level of conscious thought, which significantly influences both behaviors and decisions. It is also known as waking subconscious awareness. This complex level of cognition operates without the direct awareness of the individual, facilitating rapid and simultaneous handling of multiple information streams.
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Spearman's rank correlation test, also known as Spearman's rho, is a nonparametric method for assessing the strength and direction of association between two variables. This test is particularly valuable when the data distribution is unknown or when the assumption of normality does not hold. Named after the English psychologist and statistician Dr. Charles Edward Spearman, it serves as the nonparametric counterpart to Pearson's correlation coefficient.
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Controlled processes in human consciousness represent high-alert mental states where individuals deliberately focus their attention on achieving specific goals. Controlled processes can be seen in situations like mastering new technology, where a person might become so absorbed that they ignore surrounding distractions. Such processes involve selective attention, requiring one to concentrate on particular elements of experience while disregarding others. These are governed by executive...
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組織病理スライド分類のためのランキング認識型マルチインスタンス学習:開発および検証研究

Ho Heon Kim1,2, Gisu Hwang1, Won Chan Jeong1

  • 1AI R&D Center, Seegene Medical Foundation, Seoul, Republic of Korea.

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まとめ
この要約は機械生成です。

ランク誘導は、新しいマルチインスタンス学習(MIL)フレームワークであり、デジタル病理学におけるスライドレベル分類の改善のために、部分的な専門家のアノテーションを効果的に利用します。このアプローチは、限定的または粗いアノテーションを持つ実世界のシナリオで堅牢性を示します。

キーワード:
データ効率の良いトレーニングデジタル病理学ランキング学習混合教師あり学習マルチインスタンス学習弱教師あり学習全スライド画像

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科学分野:

  • デジタル病理学
  • 計算病理学
  • 医療における機械学習

背景:

  • マルチインスタンス学習(MIL)は、デジタル病理学におけるスライドレベル分類の重要な技術です。
  • 現在のMIL手法は、部分的な専門家のアノテーションを効果的に活用していないことがよくあります。
  • 専門家のアノテーションは、たとえ部分的であっても、教師あり学習モデルを大幅に強化することができます。

研究 の 目的:

  • ランク誘導と名付けられたランキング認識型MILフレームワークを開発および評価すること。
  • MILに部分的な専門家のアノテーションを統合して、スライドレベル分類を改善すること。
  • 現実的なアノテーション制約下でのフレームワークのパフォーマンスを評価すること。

主な方法:

  • RankNetに着想を得たペアワイズランク損失を利用するMILアプローチであるランク誘導を開発しました。
  • このフレームワークは、アノテーションされた領域に高い注意を割り当てることにより、診断的に関連性の高いパッチを優先します。
  • Camelyon16、DigestPath2019、およびSMF-stomachデータセットで、さまざまなアノテーションシナリオで評価されました。

主要な成果:

  • ランク誘導は、高いAUROCスコアを達成しました:0.839 (Camelyon16)、0.995 (DigestPath2019)、および0.875 (SMF-stomach)。
  • モデルは、トレーニングデータの削減により0.761 AUROCを維持し、低データレジームで堅牢性を示しました。
  • わずか20%の疎なスライドレベルアノテーションで、ほぼ飽和したパフォーマンスが達成されました。

結論:

  • ランキングベースの教師あり学習を介して専門家のアノテーションを統合することにより、MILベースの分類パフォーマンスが向上します。
  • ランク誘導は、限定的、粗い、または疎なアノテーションを持つデジタル病理学アプリケーションに対して、実用的で堅牢であることが証明されています。