このスライドではベイズ統計学によく登場する確率分布の関係について紹介している。平易なベルヌーイ分布から多少複雑なベータ分布までがどのようにつながっているかを示している。いくつかの重要な性質については実際に証明を与えた。本スライドは2016年10月1日のNagoyaStat #2で発表したものである。
Some probability distributions are used for bayes statistics. This slide shows relationships from Bernoulli distribution to Beta distribution. Some important properties are proofed in this slide.
このスライドではベイズ統計学によく登場する確率分布の関係について紹介している。平易なベルヌーイ分布から多少複雑なベータ分布までがどのようにつながっているかを示している。いくつかの重要な性質については実際に証明を与えた。本スライドは2016年10月1日のNagoyaStat #2で発表したものである。
Some probability distributions are used for bayes statistics. This slide shows relationships from Bernoulli distribution to Beta distribution. Some important properties are proofed in this slide.
You Only Look One-level Featureの解説と見せかけた物体検出のよもやま話Yusuke Uchida
第7回全日本コンピュータビジョン勉強会「CVPR2021読み会」(前編)の発表資料です
https://kantocv.connpass.com/event/216701/
You Only Look One-level Featureの解説と、YOLO系の雑談や、物体検出における関連する手法等を広く説明しています
You Only Look One-level Featureの解説と見せかけた物体検出のよもやま話Yusuke Uchida
第7回全日本コンピュータビジョン勉強会「CVPR2021読み会」(前編)の発表資料です
https://kantocv.connpass.com/event/216701/
You Only Look One-level Featureの解説と、YOLO系の雑談や、物体検出における関連する手法等を広く説明しています
The document describes the mean shift algorithm and its application to object tracking in computer vision. Mean shift is an iterative procedure that moves data points to the average of nearby points, converging at modes of the data's probability density function. It can be used for tracking by modeling a target object's color distribution and applying mean shift to match candidate locations in subsequent frames. The algorithm maximizes the Bhattacharyya coefficient between color distributions to find the best match for the target's new location in each frame.
The document describes how snakes, or active contours, can be used to model shapes in images. It discusses how snakes work by defining an energy function along a curve and minimizing that energy to find the optimal curve. The energy includes an internal term based on curvature and an external term from image features. Level sets are used to propagate the curves towards the minimum energy configuration using gradient descent. Key steps include modeling the shape as a curve, defining the energy function, deriving the curve to minimize energy via calculus of variations, and propagating the curves using level sets.
First part shows several methods to sample points from arbitrary distributions. Second part shows application to population genetics to infer population size and divergence time using obtained sequence data.
This document summarizes context-aware recommendation and factorization machines. It discusses how factorization machines improve on traditional matrix factorization models by incorporating additional context features. It also introduces gradient boosting factorization machines which further enhance factorization machines by optimizing the factorization model with gradient boosting algorithms.
This document summarizes research on using structured event representations extracted from news articles to predict stock price movements. Key points include:
- Events are extracted from articles and represented as tuples of actors, actions, and objects to capture the who, what, when of events.
- A deep neural network model is used to predict stock price changes based on extracted event representations.
- The model achieves better performance than baselines that use bag-of-words representations of articles.