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Human Hand Function 94 page좀 흥미로워서 따로 정리해봄.Turvey and his colleagues have presented a substantial body of empirical evidence to support their argument that “the spatial capabilities of dynamic touch result from the sensitivity of the body's tissues to certain quantities of rotational dynamics about a fixed point that do not vary with changes in the rotational forces (torques) and motions”(1996,p..

Part 4 Tactile SensingWithin the domain of tactile sensing, it is important to distinguish between tasks that involve stimulating the stationary hand with a stationary object (“passive static”) and tasks that involve an external agent moving an object across the stationary hand (“passive movement”). 요약하기보다는, 실험결과들 중 내 눈길을 끈 것들 or take-away 정리. Pressure- Although Weinstein's monofilaments were ca..

Part 3 Neurophysiology of Hand FunctionMechanoreceptors: Glabrous Skin08/09/2024How do you categorize types of Mechanoreceptors?My summary: FA I, FA II, SA I, SA IIFast-adapting: sensitive to movementsSlow-adapting: sensitive to static stimulustype I: Fine-spatial sensingtype II: Large-spatial sensingFirst summary of ChatGPT더보기The categorization of afferent units into Fast-Adapting (FA) and Slow..

Part 2 Evolutionary Development and Anatomy of the HandEvolutionary Development of the Hand08/05/2024What is the difference between human hands and hands of other primates?Opposable thumb. The thumb of humans can touch the tip of the index finger. Many primates cannot do this. This is mainly due to the length ratio of the thumb and other fingers like the index finger. This opposition capability ..

Part 1 Historical Overview and General Introduction What are the two focuses of human hand function in 19th century?1. Counting number of sensory modalities in handEarly tactile concerns centered on issues related to determining the appropriate number of human sensory modalities and submodalities and to the varying sensitivity and spatial acuity of the skina cross the entire human body when stim..

8/27/2024Pytorch Lightning & Pytorch Compatibilityhttps://lightning.ai/docs/pytorch/stable/versioning.html#compatibility-matrix자꾸 Pytorch 새로 깔려해서 빡치네. Pip에서 torch version에 맞게 알아서 Pytorch Lightning install 해야하는 거 아닌가? 반대가 아니라.08/22/2024Multi-gpu training setting in Pytorch Lightning version 2.4Default strategy는 DDP인듯. 어찌어찌 하다보니 Pytorch Lightning update했는데 갑자기 SD가 requires_grad = False 인 것 때문에 생기는..

Why does the probability is constrained under the 1/(n+1) factor, when n is the size of the calibration dataset?이 그림의 밑이 설명함. Calibration dataset에서 quantile 포인트와 그 직전 point (그게 뭘지는 모르고)의 사이에 있을 확률. calibration data point가 어떤 order로 있을 지 모르니까 각 point 사이에 새로운 test point의 score가 있을 확률이 1 / (n+1)라고 함.  https://www.youtube.com/watch?v=TRx4a2u-j7M&t=12shttps://people.eecs.berkeley.edu/~angelopoulos/pu..

Background: To undestand the equivarance of a spherical harmonics on rotationA spherical harmonics is a function defined on the surface of a sphere that assigns a value to each point on the sphere. Mathematically, if we denote the sphere by S^2, then a function f defined on the sphere is written as f: S^2→C (or \mathbb{R} if the function is real-valued). This means that for every point on the sp..

What is SO(3)?SO(3) is a special orthogonal group, which ia set of 3x3 matrices that transform a 3d point without changing distances between two points (isometry), invertible, and has +1 determinant. It is a proper rotation matrix. An isometry with -1 determinant is an improper rotation matrix or a reflection + rotation matrix.A proper rotation matrix with determinant 1, denoted by R(nˆ, θ), rep..

06/20/2024Pytorch의 nn.Module과 비슷하게 JAX의 neural network library인 FLAX에도 nn.Module이 있는데Pytorch nn.Module과 일대일 대응을 해보려 하다 배운 사실 정리:__init__ -> setupforwad -> __call__ (이건 자기 마음이긴 한데, Pytorch 문법대로 인스턴스를 forward로 쓰고 싶음 이렇게 하는 것임)그런데 setup이 다른 argument를 받지 않는 method라 혼란스러웠는데, nn.Module은 Python 3.7 dataclasses를 가정하고 상속해서 쓰기 때문에 그랬다. 말인즉슨, class variable로 선언해도 인스턴스 variable으로 되기 때문에 __init__ function안 쓰..