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Term frequency and term value

S. E. Robertson
1981 Proceedings of the 4th annual international ACM SIGIR conference on Information storage and retrieval theoretical issues in information retrieval - SIGIR '81  
Acknowledgements John Bovey devised the new estimation method and performed the analysis• The test collection was made available by.the National Physical Laboratory, Teddington, England.  ...  When this line is interpreted in terms of term value, it implies a monotonic relationship between value and frequency in the manner discussed above.  ...  of the relationship between term weight and term value.  ... 
doi:10.1145/511754.511758 dblp:conf/sigir/Robertson81 fatcat:giwdj4qlcjabrk4axt7khggnci

Phisher Fighter: Website Phishing Detection System Based on URL and Term Frequency-Inverse Document Frequency Values

E. Sri Vishva, D. Aju
2021 Journal of Cyber Security and Mobility  
In order to optimize the results in a better way, the TF-IDF (Term Frequency-Inverse Document Frequency) value of webpages is employed within the system.  ...  Fundamentally, phishing is a common cybercrime that is indulged by the intruders or hackers on naive and credible individuals and make them to reveal their unique and sensitive information through fictitious  ...  terms of efficiency.  ... 
doi:10.13052/jcsm2245-1439.1114 fatcat:qsekftptf5ch5m2fsojqvjkxoa

ON THE FREQUENCY OF ULCERATION OF THE CERVIX UTERI, AND ON THE PATHOLOGICAL VALUE OF THE TERM ULCERATION

J.Henry Bennet, Henry Bennet
1850 The Lancet  
of Du Hamel, Tillet, Fordyce, and other observers.  ...  No single remedy can possibly prove effectual, in a disease like consumption, which, from its commencement to its termination, often presents so many and such varied characters and indications.  ...  Tyler Smith's criticism of my position respecting the frequency of uterine ulceration is founded, on the one hand, on a frivolous negation of the term ulceration to abrasions and excoriations, these lesions  ... 
doi:10.1016/s0140-6736(02)89455-7 fatcat:64xmegkzg5g2xk5yksnyx2gmri

Stress state along the western Nankai Trough subduction zone inferred from b-values, long-term slow-slip events, and low-frequency earthquakes

Keita Chiba
2020 Earth, Planets and Space  
Repeating long-term slow-slip events (SSEs) and low-frequency earthquakes (LFEs) occur at subducting plate interfaces and have stress-dependent characteristics near the interface.  ...  The b-value of the Gutenberg-Richter law represents the ratio of earthquake magnitude to frequency of occurrence and is inversely proportional to differential stress.  ...  LANG=en), the unified earthquake catalog of the Japan Meteorological Agency (JMA) (https ://www.data.jma.go.jp/svd/eqev/ data/bulle tin/index .html), long-term slow-slip event models provided by Dr.  ... 
doi:10.1186/s40623-020-1130-7 fatcat:hmh7wcdfj5espblegftdzdtsnm

Correction to: Stress state along the western Nankai Trough subduction zone inferred from b-values, long-term slow-slip events, and low-frequency earthquakes

Keita Chiba
2020 Earth, Planets and Space  
Purple and red contours represent isoslip values due to 2003 and 2010 SSEs in the Bungo Channel (Ozawa et al. 2013; Ozawa 2017), with labels in meters and an increment of 0.05 m.  ...  Correction to: Earth Planets Space (2020) 72: 3 https ://doi.org/10.1186/s4062 3-020-1130-7 In the original publication of this article (Chiba 2020), the Fig. 2 should contain a color bar which explains values  ... 
doi:10.1186/s40623-020-01148-8 fatcat:ad3pm2kv25erzkeeaq3agmb4wq

Long-Term Course of Haemoglobin and Ferritin Values in High-Frequency Donors of Whole Blood and Double Erythrocyte Apheresis

Vildana Pehlic, Thomas Volken, Andreas Holbro, Zuzana Jirout, Beatrice Drexler, Andreas Buser, Laura Infanti
2020 Transfusion Medicine and Hemotherapy  
We retrospectively evaluated the course of haemoglobin (Hb) and ferritin values in men regularly donating WB 4 times a year or 2RBC twice a year (i.e., maximal frequency) over a period of 48 months.  ...  At baseline, Hb and ferritin values were lower in WB donors compared to 2RBC donors, with a mean Hb of 153 g/L (SD 13) versus 159 g/L (SD 8) and a mean ferritin of 44 μg/L (SD 52) versus 73 μg/L (SD 56  ...  Author Contributions L.I. and V.P.: conception of the study and writing of the manuscript. V.P. and Z.J.: data collection. T.V.: statistics. All authors: manuscript revision and final approval.  ... 
doi:10.1159/000509026 pmid:33976607 pmcid:PMC8077546 fatcat:a7crd47zgfertamivgle4nrbnu

Search terms and a validated brief search filter to retrieve publications on health-related values in Medline: a word frequency analysis study

M. Petrova, P. Sutcliffe, K. W. M. Fulford, J. Dale
2012 JAMIA Journal of the American Medical Informatics Association  
Methods Word frequency analysis for 'values terms' was performed on citations on diabetes, obesity, dementia, and schizophrenia (Medline; 2004e2006; 4440 citations; 1 110 291 words).  ...  ConcordanceÒ and SPSS 14.0 were used. Text words and MeSH terms of high frequency and precision were compiled into a search filter.  ...  Frequency counts were produced for the MeSH terms in both the true positive and false positive datasets.  ... 
doi:10.1136/amiajnl-2011-000243 pmid:21846778 pmcid:PMC3341778 fatcat:xcdfgumikjdphgmjitmb37ulze

Comparing the Impact of Long-Term Exposure to Extremely Low-Frequency Electromagnetic Fields With Diverse Values on Anxiety, Memory, Learning, And Β-Amyloid Deposition In Adult Rats

Nafiseh Faraji, Master Neurophysiology Research Center, Hamadan University of Medical Sciences, Hamadan, Iran., Iraj Salehi, Akram Alizadeh, Arash Pourgholaminejad, Alireza Komaki, Masoumeh Taheri Azandaryani, Reihaneh Sadeghian, Zoleikha Golipoor, Professor Neurophysiology Research Center, Hamadan University of Medical Sciences, Hamadan, Iran., Assistant professor Nervous System Stem Cells Research Center, Semnan University of Medical Sciences, Semnan, Iran., Assistant professor Department of Immunology, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran. (+4 others)
2021 Basic and Clinical Neuroscience  
Materials and Methods: Fifty male adult rats were randomly separated into 5 groups; four groups exposed to a flux density of 1, 100, 500 and 2000 microtesla (µT), 50 Hertz (Hz) frequency for 1h/day for  ...  Extremely low-frequency electromagnetic fields (ELF-EMFs) have gathered significant consideration for their possible pathogenicity.  ...  , and 2000 µT) ELF-EMFs, frequency 50 Hz, 1h/day for 2 months.  ... 
doi:10.32598/bcn.2021.1204.2 fatcat:wsmkzq3vrnc3jgvgwfp7qe2ari

Long-term course of haemoglobin and ferritin values in high-frequency donors of whole blood and double erythrocyte apheresis

Vildana Pehlic, Thomas Volken, Andreas Holbro, Zuzana Jirout, Beatrice Drexler, Andreas Buser, Laura Infanti
2020
We retrospectively evaluated the course of haemoglobin (Hb) and ferritin values in men regularly donating WB 4 times a year or 2RBC twice a year (i.e., maximal frequency) over a period of 48 months.  ...  At baseline, Hb and ferritin values were lower in WB donors compared to 2RBC donors, with a mean Hb of 153 g/L (SD 13) versus 159 g/L (SD 8) and a mean ferritin of 44 μg/L (SD 52) versus 73 μg/L (SD 56  ...  Author Contributions L.I. and V.P.: conception of the study and writing of the manuscript. V.P. and Z.J.: data collection. T.V.: statistics. All authors: manuscript revision and final approval.  ... 
doi:10.21256/zhaw-20351 fatcat:n7yjqspk7fe5zh3yqjagkimfom

Nonlinear transformation of term frequencies for term weighting in text categorization

Zafer Erenel, Hakan Altınçay
2012 Engineering applications of artificial intelligence  
In automatic text categorization, the influence of features on the decision is set by the term weights which are conventionally computed as the product of term frequency and collection frequency factors  ...  Five datasets are firstly tested to show that the distribution of term frequency values is task dependent.  ...  Consider a term t j having the term frequency value tf (d k , t j ) for a given document d k .  ... 
doi:10.1016/j.engappai.2012.06.013 fatcat:gz4tm5zhhzfinlsrqpvui5v7fa

The C-value/NC-value domain-independent method for multi-word term extraction

Katerina T. Frantzi, Sophia Ananiadou
1999 Journal of Natural Language Processing  
The method,(C-value/NC-value),combines linguistic and statistical information.  ...  The first part,C-value enhances the common statistical measure of frequency of occurrence for term extraction,making it sensitive to a particular type of multi-word terms,the nested terms.Nested terms  ...  The C-value/NC-value method for ATR (Received October 8, 1998) (Accepted January 22, 1999  ... 
doi:10.5715/jnlp.6.3_145 fatcat:mpq3k7ydlnasbal3d36ihv2djm

The Effect of Term Importance Degree on Text Retrieval

Soheila Karbasi, Mehdi Yaghoubi
2012 International Journal of Computer Applications  
As well actual information retrieval systems have to deal with explosive growth of documents of various sizes and terms of various frequencies because an appropriate term-weighting scheme has a crucial  ...  Two models of term frequency normalization are inserted in a basic termweighting scheme, which shows the importance of terms.  ...  Afterward, the correlations between term frequency and document frequency of terms in 50 documents are calculated randomly whose maximum values are shown in Table 5 .  ... 
doi:10.5120/4573-6734 fatcat:6byqej63o5cofdnqbvlbjvzw64

Automatic recognition of multi-word terms:. the C-value/NC-value method

Katerina Frantzi, Sophia Ananiadou, Hideki Mima
2000 International Journal on Digital Libraries  
The rst part, C-value enhances the common statistical measure of frequency of occurrence for term extraction, making it sensitive t o a particular ty p e o f m ulti-word terms, the nested terms.  ...  The method, (C-value/NC-value), combines linguistic and statistical information.  ...  Nested-terms distribution: C-value vs Frequency with lter 1. Fig. 2 . 2 Nested-terms distribution: C-value vs Frequency with lter 2. Fig. 4 . 4 Precision: NC-value, C-value and frequency.  ... 
doi:10.1007/s007999900023 fatcat:7es6b55zyjg6fa57bdponwu2wm

An application and e aluation of the C/NC-value approach for the automatic term recognition of multi-word units in Japanese

2001 Terminology  
Although the C-value/NC-value method is originally based on the recognition of nested terms in English, our aim is to evaluate the application of the method to other languages and to show its feasibility  ...  Thus, a domain and language-independent method for term recognition is necessary to automatically recognize terms from Internet documents.The C-/NC-value method is an efficient domain-independent multi-word  ...  We have therefore evaluated the results of the C-value method in terms of precision and recall and compared it with frequency of occurrence.  ... 
doi:10.1075/term.6.2.04mim fatcat:7lgieofdvncxjdhhwcb46ztyxu

A theory of term importance in automatic text analysis

G. Salton, C. S. Yang, C. T. Yu
1975 Journal of the American Society for Information Science  
Most existing automatic content analysis and indexing techniques are based on work frequency characteristics applied largely in an ad hoc manner.  ...  items), whereas terms with low frequency in the whole collection are useful for high precision (to reject nonrelevant items).  ...  to each term k a value v..  ... 
doi:10.1002/asi.4630260106 fatcat:vium33mhnjaqtl5ppspljyy5ea
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