نتایج جستجو برای: juxtaposition of words

تعداد نتایج: 21168725  

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2016
Deborah Naon Marta Zaninello Marta Giacomello Tatiana Varanita Francesca Grespi Sowmya Lakshminaranayan Annalisa Serafini Martina Semenzato Stephanie Herkenne Maria Isabel Hernández-Alvarez Antonio Zorzano Diego De Stefani Gerald W Dorn Luca Scorrano

The discovery of the multiple roles of mitochondria-endoplasmic reticulum (ER) juxtaposition in cell biology often relied upon the exploitation of Mitofusin (Mfn) 2 as an ER-mitochondria tether. However, this established Mfn2 function was recently questioned, calling for a critical re-evaluation of Mfn2's role in ER-mitochondria cross-talk. Electron microscopy and fluorescence-based probes of o...

2007
Richard Tzong-Han Tsai Hsieh-Chuan Hung Hong-Jie Dai Jaimie Yi-Wen Lin

Background

Journal: :Journal of Applied Mathematics and Decision Sciences 2008

2008
Xiaolan Li Afzal Godil Asim Imdad Wagan

This paper presents a new method for 3D shape retrieval based on the bags-of-words model along with a weak spatial constraint. First, a two-pass sampling procedure is performed to extract the local shape descriptors, based on spin images, which are used to construct a shape dictionary. Second, the model is partitioned into different regions based on the positions of the words. Then each region ...

2014
Giorgos Tolias Teddy Furon Hervé Jégou

Image search systems based on local descriptors typically achieve orientation invariance by aligning the patches on their dominant orientations. Albeit successful, this choice introduces too much invariance because it does not guarantee that the patches are rotated consistently. This paper introduces an aggregation strategy of local descriptors that achieves this covariance property by jointly ...

2017
Carolina Fócil Arias Jorge Zúñiga Grigori Sidorov Ildar Z. Batyrshin Alexander F. Gelbukh

The 2017 Microblog Cultural Contextualization task consists in three challenges: (1) Content Analysis, (2) Microblog search, and (3) TimeLine illustration. This paper describes the use of cosine similarity, which is characterized by the comparison of similarity between two vectors of an inner product space. This research used two approaches: (1) word2vec and (2) Bag-of-Words (BoW) for extractin...

Journal: :Int. J. Comput. Proc. Oriental Lang. 2005
Wenliang Chen Jingbo Zhu Muhua Zhu Li Zhang Tianshun Yao

In this paper, we present a novel model for improving the performance of Domain Dictionary-based text categorization. The proposed model is named as Self-Partition Model(SPM). SPM can group the candidate words into the predefined clusters, which are generated according to the structure of Domain Dictionary. Using these learned clusters as features, we proposed a novel text representation. The e...

2012
Zifeng Wu Yongzhen Huang Liang Wang Tieniu Tan

The original bag-of-words (BoW) model in terms of image classification treats each local feature independently, and thus ignores the spatial relationships between a feature and its neighboring features, namely, the feature’s context. However, our intuition and empirical studies tell the importance of such spatial information. Although the global spatial information can be captured with the spat...

2013
Rui Xia Tao Wang Xuelei Hu Shoushan Li Chengqing Zong

Bag-of-words (BOW) is now the most popular way to model text in machine learning based sentiment classification. However, the performance of such approach sometimes remains rather limited due to some fundamental deficiencies of the BOW model. In this paper, we focus on the polarity shift problem, and propose a novel approach, called dual training and dual prediction (DTDP), to address it. The b...

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