Bag-of-words model (BoW model) 最早出现在NLP和IR领域. 该模型忽略掉文本的语法和语序, 用一组无序的单词(words)来表达一段文字或一个文档. 近年来, BoW模型被广泛应用于计算机视觉中. 与应用于文本的BoW类比, 图像的特征(feature)被当作单词(Word). 引子: 应用于文本的BoW model Wikipedia[1]上给出了如下例子: John likes to watch movies. Mary likes too. John als
bag of words(NLP): 最初的Bag of words,也叫做"词袋",在信息检索中,Bag of words model假定对于一个文本,忽略其词序和语法,句法,将其仅仅看做是一个词集合,或者说是词的一个组合,文本中每个词的出现都是独立的,不依赖于其他词 是否出现,或者说当这篇文章的作者在任意一个位置选择一个词汇都不受前面句子的影响而独立选择的. Bag-of-words model (BoW model) 最早出现在NLP和IR领域. 该模型忽略掉文本的语法和语序,
Abstract—Augmented Reality (AR) has become increasingly popular in recent years and it has a widespread application prospect. Especially in 2016, Pokémon Go, a location-based augmented reality game, has brought a dramatic impact on the global market
Abstract—Augmented Reality (AR) has become increasingly popular in recent years and it has a widespread application prospect. Especially in 2016, Pokémon Go, a location-based augmented reality game, has brought a dramatic impact on the global market