Performance of Graph and Relational Databases in Complex Queries
In developing NoSQL databases, a major motivation is to achieve better efficient query performance compared with relational databases. The graph database is a NoSQL paradigm where navigation is based on links instead of joining tables.
Petri Kotiranta +2 more
doaj +1 more source
Query-by-Example On-Device Keyword Spotting [PDF]
A keyword spotting (KWS) system determines the existence of, usually predefined, keyword in a continuous speech stream. This paper presents a query-by-example on-device KWS system which is user-specific. The proposed system consists of two main steps: query enrollment and testing.
Byeonggeun Kim +4 more
openaire +2 more sources
Text-Image Matching for Cross-Modal Remote Sensing Image Retrieval via Graph Neural Network
The rapid development of remote sensing (RS) technology has produced massive images, which makes it difficult to obtain interpretation results by manual screening. Therefore, researchers began to develop automatic retrieval method of RS images. In recent
Hongfeng Yu +6 more
doaj +1 more source
marmap: A package for importing, plotting and analyzing bathymetric and topographic data in R. [PDF]
In this communication we introduce marmap, a package designed for downloading, plotting and manipulating bathymetric and topographic data in R. marmap can query the ETOPO1 bathymetry and topography database hosted by the NOAA, use simple latitude ...
Eric Pante, Benoit Simon-Bouhet
doaj +1 more source
A Query Language for Data Access in Ubiquitous Environments
Recent progress in ubiquitous computing technology is allowing development of new and so- phisticated applications that are now able to store very large data on the mobile device itself, besides access data stored remotely. Thus emerges the need to query
Cristiano Silveira +2 more
doaj +1 more source
gmos: Rapid Detection of Genome Mosaicism over Short Evolutionary Distances. [PDF]
Prokaryotic and viral genomes are often altered by recombination and horizontal gene transfer. The existing methods for detecting recombination are primarily aimed at viral genomes or sets of loci, since the expensive computation of underlying ...
Mirjana Domazet-Lošo +1 more
doaj +1 more source
Strategies for Searching Video Content with Text Queries or Video Examples [PDF]
The large number of user-generated videos uploaded on to the Internet everyday has led to many commercial video search engines, which mainly rely on text metadata for search. However, metadata is often lacking for user-generated videos, thus these videos
Chang, Xiaojun +15 more
core +1 more source
Query-by-Example Speech Search Using Recurrent Neural Acoustic Word Embeddings With Temporal Context
Acoustic word embeddings (AWEs) have been popular in low-resource query-by-example speech search. They are using vector distances to find the spoken query in search content, which has much lower computation than the conventional dynamic time warping (DTW)
Yougen Yuan +4 more
doaj +1 more source
k-Nearest Neighbour Classifiers: 2nd Edition (with Python examples) [PDF]
Perhaps the most straightforward classifier in the arsenal or machine learning techniques is the Nearest Neighbour Classifier -- classification is achieved by identifying the nearest neighbours to a query example and using those neighbours to determine ...
Cunningham, Padraig, Delany, Sarah Jane
core +3 more sources
Audio Query by Example Using Similarity Measures between Probability Density Functions of Features
This paper proposes a query by example system for generic audio. We estimate the similarity of the example signal and the samples in the queried database by calculating the distance between the probability density functions (pdfs) of their frame-wise ...
Marko Helén, Tuomas Virtanen
doaj +1 more source

