Results 231 to 240 of about 126,369 (255)

An Evaluation of Structure Based Similarity Indexes for Collaborative Filtering

2010 Third International Conference on Knowledge Discovery and Data Mining, 2010
Recommender systems are significant for web based e-commerce, and collaborative filtering(CF) algorithms are proved to be the most successful recommendation techniques. For CF algorithms, the similarity index is the heart, and many indexes have been proposed.
Yong Chen, Mingsheng Shang 0001
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Distance-Based Index Structures for Fast Similarity Search

Cybernetics and Systems Analysis, 2017
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Mining, Indexing, and Similarity Search in Graphs and Complex Structures

22nd International Conference on Data Engineering (ICDE'06), 2006
Scalable methods for mining, indexing, and similarity search in graphs and other complex structures, such as trees, lattices, and networks, have become increasingly important in data mining and database management. This is because a large set of emerging applications need to handle new kinds of objects with complex structures, such as trees (e.g., XML ...
Jiawei Han 0001, Xifeng Yan, Philip S. Yu   +2 more
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Similarity Measurement on Human Mobility Data with Spatially Weighted Structural Similarity Index (SpSSIM)

Transactions in GIS, 2019
AbstractUnderstanding diverse characteristics of human mobility provides profound knowledge of urban dynamics and complexity. Human movements are recorded in a variety of data sources and each describes unique mobility characteristics. Revealing similarity and difference in mobility data sources facilitates grasping comprehensive human mobility ...
Chanwoo Jin, Atsushi Nara, Jiue-An Yang, Ming-Hsiang Tsou   +3 more
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Hierarchical Indexing Structure for Efficient Similarity Search in Video Retrieval

IEEE Transactions on Knowledge and Data Engineering, 2006
With the rapid increase in both centralized video archives and distributed WWW video resources, content-based video retrieval is gaining its importance. To support such applications efficiently, content-based video indexing must be addressed. Typically, each video is represented by a sequence of frames.
Lu, Hong, Ooi, B. C., Shen, H. T., Xue, Xiangyang   +3 more
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Towards index-based similarity search for protein structure databases

Computational Systems Bioinformatics. CSB2003. Proceedings of the 2003 IEEE Bioinformatics Conference. CSB2003, 2004
We propose two methods for finding similarities in protein structure databases. Our techniques extract feature vectors on triplets of SSEs (Secondary Structure Elements) of proteins. These feature vectors are then indexed using a multidimensional index structure.
Orhan Çamoglu, Tamer Kahveci, Ambuj K. Singh   +2 more
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Quaternion Structural Similarity: A New Quality Index for Color Images

IEEE Transactions on Image Processing, 2012
One of the most important issues for researchers developing image processing algorithms is image quality. Methodical quality evaluation, by showing images to several human observers, is slow, expensive, and highly subjective. On the other hand, a visual quality matrix (VQM) is a fast, cheap, and objective tool for evaluating image quality.
Amir Kolaman, Orly Yadid-Pecht
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A New Local Self-Similarity Descriptor Based on Structural Similarity Index

Applied Mechanics and Materials, 2014
The local self-similarity descriptor is a kind of important image or video local feature description method. It is often used for detection, identification and recognition. In this paper we propose a new local self-similarity descriptor based on structural similarity (SSIM) index.
Hong Bo Yang, Xia Hou
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An index structure for pattern similarity searching in DNA microarray data

Proceedings. IEEE Computer Society Bioinformatics Conference, 2003
The DNA microarray technology is about to bring an explosion of gene expression data that may dwarf even the human sequencing projects. Researchers are motivated to identify genes whose expression levels rise and fall coherently under a set of experimental perturbances, that is, they exhibit fluctuation of a similar shape when conditions change.
Haixun Wang, Chang-Shing Perng, Wei Fan 0001, Philip S. Yu   +3 more
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Index Structures for Fast Similarity Search for Symbol Strings

Cybernetics and Systems Analysis, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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