Matches in SemOpenAlex for { <https://semopenalex.org/work/W4385270525> ?p ?o ?g. }
Showing items 1 to 100 of
100
with 100 items per page.
- W4385270525 abstract "Indoor location-based services rely on the availability of sufficiently accurate positioning in indoor spaces. A popular approach to positioning relies on so-called radio maps that contain pairs of a vector of Wi-Fi signal strength indicator values (RSSIs), called a fingerprint, and a location label, called a reference point (RP), in which the fingerprint was observed. The positioning accuracy depends on the quality of the radio maps and their fingerprints. Radio maps are often sparse, with many pairs containing vectors missing many RSSIs as well as RPs. Aiming to improve positioning accuracy, we present a complete set of techniques to impute such missing values in radio maps. We differentiate two types of missing RSSIs: missing not at random (MNAR) and missing at random (MAR). Specifically, we design a framework encompassing a missing RSSI differentiator followed by a data imputer for missing values. The differentiator identifies MARs and MNARs via clustering-based fingerprint analysis. Missing RSSIs and RPs are then imputed jointly by means of a novel encoder-decoder architecture that leverages temporal dependencies in data collection as well as correlations among fingerprints and RPs. A time-lag mechanism is used to consider the aging of data, and a sparsity-friendly attention mechanism is used to focus attention score calculation on observed data. Extensive experiments with real data from two buildings show that our proposal outperforms the alternatives with significant advantages in terms of imputation accuracy and indoor positioning accuracy." @default.
- W4385270525 created "2023-07-27" @default.
- W4385270525 creator A5001014826 @default.
- W4385270525 creator A5002656825 @default.
- W4385270525 creator A5035339773 @default.
- W4385270525 creator A5047655841 @default.
- W4385270525 creator A5064091938 @default.
- W4385270525 date "2023-04-01" @default.
- W4385270525 modified "2023-09-26" @default.
- W4385270525 title "Data Imputation for Sparse Radio Maps in Indoor Positioning" @default.
- W4385270525 cites W1630993930 @default.
- W4385270525 cites W1634075355 @default.
- W4385270525 cites W1644997609 @default.
- W4385270525 cites W1919216911 @default.
- W4385270525 cites W2003738415 @default.
- W4385270525 cites W2037848801 @default.
- W4385270525 cites W2053245144 @default.
- W4385270525 cites W2061417297 @default.
- W4385270525 cites W2062799148 @default.
- W4385270525 cites W2079848516 @default.
- W4385270525 cites W2084605811 @default.
- W4385270525 cites W2094069236 @default.
- W4385270525 cites W2095143852 @default.
- W4385270525 cites W2100358124 @default.
- W4385270525 cites W2134671728 @default.
- W4385270525 cites W2147348082 @default.
- W4385270525 cites W2181675000 @default.
- W4385270525 cites W2278572312 @default.
- W4385270525 cites W2424974143 @default.
- W4385270525 cites W2517041258 @default.
- W4385270525 cites W2538535315 @default.
- W4385270525 cites W2548927174 @default.
- W4385270525 cites W2742686197 @default.
- W4385270525 cites W2763556710 @default.
- W4385270525 cites W2768707360 @default.
- W4385270525 cites W2806729898 @default.
- W4385270525 cites W2898493182 @default.
- W4385270525 cites W2964010366 @default.
- W4385270525 cites W2964199361 @default.
- W4385270525 cites W2964229939 @default.
- W4385270525 cites W2964425131 @default.
- W4385270525 cites W2996018588 @default.
- W4385270525 cites W3006713198 @default.
- W4385270525 cites W3174354284 @default.
- W4385270525 cites W3174697924 @default.
- W4385270525 cites W3194712324 @default.
- W4385270525 cites W3198445485 @default.
- W4385270525 cites W4206076777 @default.
- W4385270525 cites W4286269020 @default.
- W4385270525 cites W4293095087 @default.
- W4385270525 cites W3038930712 @default.
- W4385270525 doi "https://doi.org/10.1109/icde55515.2023.00173" @default.
- W4385270525 hasPublicationYear "2023" @default.
- W4385270525 type Work @default.
- W4385270525 citedByCount "0" @default.
- W4385270525 crossrefType "proceedings-article" @default.
- W4385270525 hasAuthorship W4385270525A5001014826 @default.
- W4385270525 hasAuthorship W4385270525A5002656825 @default.
- W4385270525 hasAuthorship W4385270525A5035339773 @default.
- W4385270525 hasAuthorship W4385270525A5047655841 @default.
- W4385270525 hasAuthorship W4385270525A5064091938 @default.
- W4385270525 hasConcept C111919701 @default.
- W4385270525 hasConcept C118505674 @default.
- W4385270525 hasConcept C119857082 @default.
- W4385270525 hasConcept C124101348 @default.
- W4385270525 hasConcept C153180895 @default.
- W4385270525 hasConcept C154945302 @default.
- W4385270525 hasConcept C2777826928 @default.
- W4385270525 hasConcept C41008148 @default.
- W4385270525 hasConcept C58041806 @default.
- W4385270525 hasConcept C73555534 @default.
- W4385270525 hasConcept C9357733 @default.
- W4385270525 hasConceptScore W4385270525C111919701 @default.
- W4385270525 hasConceptScore W4385270525C118505674 @default.
- W4385270525 hasConceptScore W4385270525C119857082 @default.
- W4385270525 hasConceptScore W4385270525C124101348 @default.
- W4385270525 hasConceptScore W4385270525C153180895 @default.
- W4385270525 hasConceptScore W4385270525C154945302 @default.
- W4385270525 hasConceptScore W4385270525C2777826928 @default.
- W4385270525 hasConceptScore W4385270525C41008148 @default.
- W4385270525 hasConceptScore W4385270525C58041806 @default.
- W4385270525 hasConceptScore W4385270525C73555534 @default.
- W4385270525 hasConceptScore W4385270525C9357733 @default.
- W4385270525 hasFunder F4320334111 @default.
- W4385270525 hasLocation W43852705251 @default.
- W4385270525 hasOpenAccess W4385270525 @default.
- W4385270525 hasPrimaryLocation W43852705251 @default.
- W4385270525 hasRelatedWork W1973721774 @default.
- W4385270525 hasRelatedWork W2541565311 @default.
- W4385270525 hasRelatedWork W2751555317 @default.
- W4385270525 hasRelatedWork W2784019465 @default.
- W4385270525 hasRelatedWork W2900766238 @default.
- W4385270525 hasRelatedWork W3049453136 @default.
- W4385270525 hasRelatedWork W4321488553 @default.
- W4385270525 hasRelatedWork W4381149614 @default.
- W4385270525 hasRelatedWork W569810835 @default.
- W4385270525 hasRelatedWork W2566086483 @default.
- W4385270525 isParatext "false" @default.
- W4385270525 isRetracted "false" @default.
- W4385270525 workType "article" @default.