Results 21 to 30 of about 1,562,553 (261)

Term frequency dynamics in collaborative articles [PDF]

open access: yesProceedings of the 10th ACM symposium on Document engineering, 2010
Documents on the World Wide Web are dynamic entities. Mainstream information retrieval systems and techniques are primarily focused on the latest version a document, generally ignoring its evolution over time. In this work, we study the term frequency dynamics in web documents over their lifespan.
Sérgio Nunes 0001   +2 more
openaire   +2 more sources

Long-Term Frequency Stability Assessment Based on Extended Frequency Response Model

open access: yesIEEE Access, 2020
Large frequency deviation degrades the operation performance of the boiler and its auxiliaries. It affects the output of thermal power units. A significant change in power generation leads to a great frequency deviation.
Yuzheng Xie   +4 more
doaj   +1 more source

Frequency of Polyneuropathy in Patients on Long Term Peritoneal Dialysis Treatment [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2017
Introduction: Uremic polyneuropathy is very common among patients with Chronic Kidney Disease (CKD). The patients have electrophysiologic signs of impaired nerve function, although a lower percentage of patients are symptomatic.
Taner Basturk   +7 more
doaj   +1 more source

WAYS TO DETERMINE THE RANGE OF KEYWORDS IN A FREQUENCY DICTIONARY FOR TEXT CLASSIFICATION

open access: yesКомпютерні системи та інформаційні технології, 2023
The paper is devoted to the actual problem of classifying textual documents of the collection by characteristic features, which is used for classifying news, reviews, determining the emotional tone of the text, as well as for forming catalogs of ...
Olesia Barkovska   +3 more
doaj   +1 more source

Semantically Enhanced Term Frequency [PDF]

open access: yes, 2010
In this paper, we complement the term frequency, which is used in many bag-of-words based information retrieval models, with information about the semantic relatedness of query and document terms. Our experiments show that when employed in the standard probabilistic retrieval model BM25, the additional semantic information significantly outperforms the
Christof Müller, Iryna Gurevych
openaire   +1 more source

Document retrieval using term term frequency inverse sentence frequency weighting scheme

open access: yesIndonesian Journal of Electrical Engineering and Computer Science, 2023
The need for an efficient method to find the furthermost appropriate document corresponding to a particular search query has become crucial due to the exponential development in the number of papers that are now readily available to us on the web. The vector space model (VSM) a perfect model used in “information retrieval”, represents these words as a ...
Mohannad T. Mohammed   +1 more
openaire   +2 more sources

Term frequency with average term occurrences for textual information retrieval [PDF]

open access: yesSoft Computing, 2015
In the context of Information Retrieval (IR) from text documents, the term-weighting scheme (TWS) is a key component of the matching mechanism when using the vector space model (VSM). In this paper we propose a new TWS that is based on computing the average term occurrences of terms in documents and it also uses a discriminative approach based on the ...
Osman Ali Sadek Ibrahim   +1 more
openaire   +2 more sources

Design of Geopolitical Topical Crawler Based on Classified Keyword Term Frequency Model [PDF]

open access: yesJisuanji gongcheng, 2016
To solve the no-structuring problem of Term Frequency-Inverse Document Frequency(TF-IDF) model in topical crawler,this paper proposes a novel topical crawler based on Classified Keyword Term Frequency (CKTF) model.A Webpage is divided into five parts ...
WEI Yong,HU Danlu,HAO Chenguang,OU Xiaoping
doaj   +1 more source

Conceptual Semantic Model for Web Document Clustering Using Term Frequency

open access: yesEAI Endorsed Transactions on Energy Web, 2018
Term analysis is the key objective of most of the methods under text mining, here term analysis either refers to a word or a phrase. Determination of the documents subject is another important task to be performed by the semantic based method; this is ...
Dr. N. Krishnaraj   +2 more
doaj   +1 more source

Very Short-Term Power System Frequency Forecasting

open access: yesIEEE Access, 2020
Power system frequency plays a pivotal role in ensuring the security, adequacy, and integrity of a power system. While some frequency response services are automatically delivered to maintain the frequency within the stipulated limits, certain cases may ...
Ogun Yurdakul   +3 more
doaj   +1 more source

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