Results 31 to 40 of about 41,352 (256)

Self-feedback image retrieval algorithm based on annular color moments

open access: yesEURASIP Journal on Image and Video Processing, 2019
Content-based image retrieval (CBIR) extracts visual content features (such as color, texture, and shape) of a sample image to retrieve another similar image. Due to the existence of the semantic gap, retrieval results are often unsatisfactory.
Ying Deng, Yuanhui Yu
doaj   +1 more source

Deep Neural Network and Pseudo Relevance Feedback Based Query Expansion

open access: yesComputers Materials & Continua, 2022
: The neural network has attracted researchers immensely in the last couple of years due to its wide applications in various areas such as Data mining, Natural language processing, Image processing, and Information retrieval etc.
Abhishek Kumar Shukla, Sujoy Das
semanticscholar   +1 more source

An adaptive term proximity based rocchio’s model for clinical decision support retrieval

open access: yesBMC Medical Informatics and Decision Making, 2019
Background In order to better help doctors make decision in the clinical setting, research is necessary to connect electronic health record (EHR) with the biomedical literature.
Min Pan   +5 more
doaj   +1 more source

Improving the Results of Google Scholar Engine through Automatic Query Expansion Mechanism and Pseudo Re-ranking using MVRA

open access: yesJournal of Information and Organizational Sciences, 2018
In this paper, we address the enhancing of Google Scholar engine, in the context of text retrieval, through two mechanisms related to the interrogation protocol of that query expansion and reformulation.
Mawloud Mosbah
doaj   +1 more source

Pseudo-Relevance Feedback Method Based on the Topic Relevance Model

open access: yesMathematical Problems in Engineering, 2022
In the field of information retrieval, most pseudo-relevance feedback models select candidate terms from the top k documents returned by the first-pass retrieval, but they cannot identify the reliability of these documents.
Zhaofeng Chen   +6 more
semanticscholar   +1 more source

Hybrid Query Expansion Model Based on Pseudo Relevance Feedback and Semantic Tree for Arabic IR

open access: yesInternational Journal of Information Retrieval Research, 2022
In this paper, the authors propose and readapt a new concept-based approach of query expansion in the context of Arabic information retrieval. The purpose is to represent the query by a set of weighted concepts in order to identify better the user's ...
A. Mazari, Abdelhamid Djeffal
semanticscholar   +1 more source

Generalized Analysis of a Distribution Separation Method

open access: yesEntropy, 2016
Separating two probability distributions from a mixture model that is made up of the combinations of the two is essential to a wide range of applications. For example, in information retrieval (IR), there often exists a mixture distribution consisting of
Peng Zhang   +5 more
doaj   +1 more source

Ranks Aggregation and Semantic Genetic Approach based Hybrid Model for Query Expansion

open access: yesInternational Journal of Computational Intelligence Systems, 2017
Effective query expansion terms selection methods are really very important for improving the accuracy and efficiency of Pseudo-Relevance Feedback (PRF) based automatic query expansion techniques in information retrieval system.
Jagendra Singh
doaj   +1 more source

Query expansion: Internet mining vs. pseudo relevance feedback [PDF]

open access: yesProceedings of the American Society for Information Science and Technology, 2007
AbstractWe report an investigation of techniques for mining world wide web in order to identify terms (single words or phrases) that are highly related to a topic (query) described by a short (one sentence or a paragraph‐long) interest statement. These terms are subsequently used to improve automated document retrieval.
Dmitri Roussinov, Gheorghe Muresan
openaire   +1 more source

Near‐Infrared Emitting Lanthanide Catecholate Giant Single Crystals – Morphology Control and Photon Down‐Conversion

open access: yesAdvanced Functional Materials, EarlyView.
Controlled syntheses of lanthanide coordination polymers based on the dihydroxybenzoquinone (DHBQ) organic linker afforded large single crystals of Ln‐DHBQ CPs (Ln = Yb, Nd). A novel structural variant of Yb‐DHBQ is identified by means of single crystal diffraction analysis.
Marina I. Schönherr   +7 more
wiley   +1 more source

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