Results 31 to 40 of about 613,746 (324)

Query-by-Example Speech Search Using Recurrent Neural Acoustic Word Embeddings With Temporal Context

open access: yesIEEE Access, 2019
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

Analisis Seleksi Citra Mirip dengan Memanfaatkan Konsep CBIR dan Algoritma Threshold

open access: yesComTech, 2011
Content base image retrieval (CBIR) is the concept of image retrieval by comparing the existing image on the sample to that of the database (query by example).
Abdul Haris Rangkuti
doaj   +1 more source

Partial-sum queries in OLAP data cubes using covering codes [PDF]

open access: yes, 1997
A partial-sum query obtains the summation over a set of specified cells of a data cube. We establish a connection between the covering problem in the theory of error-correcting codes and the partial-sum problem and use this connection to devise ...
Ching-tien Ho   +4 more
core   +3 more sources

Learning Join Queries from User Examples [PDF]

open access: yesACM Transactions on Database Systems, 2016
We investigate the problem of learning join queries from user examples. The user is presented with a set of candidate tuples and is asked to label them as positive or negative examples, depending on whether or not she would like the tuples as part of the join result.
Bonifati, Angela   +2 more
openaire   +3 more sources

Horizontably Scalable LSM-tree Based Index for Full-Text Search Boolean Queries

open access: yesСовременные информационные технологии и IT-образование, 2022
Let there be a set of objects, where each object is characterized by Boolean features. Let logical query or Boolean query denote a query to find objects characterized by a Boolean function by features, for example, “documents with all words ...and any ...
Aleksei Neganov
doaj   +1 more source

Queries = examples + counterexamples

open access: yesInformation Systems, 1996
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources

Pay One, Get Hundreds for Free: Reducing Cloud Costs through Shared Query Execution

open access: yes, 2018
Cloud-based data analysis is nowadays common practice because of the lower system management overhead as well as the pay-as-you-go pricing model. The pricing model, however, is not always suitable for query processing as heavy use results in high costs ...
Chen Chung-Min   +6 more
core   +1 more source

A locally weighted learning method based on a data gravitation model for multi-target regression

open access: yesInternational Journal of Computational Intelligence Systems, 2018
Locally weighted regression allows to adjust the regression models to nearby data of a query example. In this paper, a locally weighted regression method for the multi-target regression problem is proposed.
Oscar Reyes   +3 more
doaj   +1 more source

Reverse k Nearest Neighbor Search over Trajectories [PDF]

open access: yes, 2017
GPS enables mobile devices to continuously provide new opportunities to improve our daily lives. For example, the data collected in applications created by Uber or Public Transport Authorities can be used to plan transportation routes, estimate ...
Bao, Zhifeng   +4 more
core   +1 more source

Explaining Wrong Queries Using Small Examples [PDF]

open access: yesProceedings of the 2019 International Conference on Management of Data, 2019
For testing the correctness of SQL queries, e.g., evaluating student submissions in a database course, a standard practice is to execute the query in question on some test database instance and compare its result with that of the correct query. Given two queries $Q_1$ and $Q_2$, we say that a database instance $D$ is a counterexample (for $Q_1$ and ...
Sudeepa Roy, Jun Yang, Zhengjie Miao
openaire   +3 more sources

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