Results 11 to 20 of about 142,696 (248)

Deriving TF-IDF as a Fisher Kernel [PDF]

open access: yes, 2005
The Dirichlet compound multinomial (DCM) distribution has recently been shown to be a good model for documents because it captures the phenomenon of word burstiness, unlike standard models such as the multinomial distribution. This paper investigates the DCM Fisher kernel, a function for comparing documents derived from the DCM.
Charles Elkan
openaire   +2 more sources

Arabic Questions Classification Using Modified TF-IDF [PDF]

open access: yesIEEE Access, 2021
Classifying the cognitive levels of assessment questions according to Bloom’s taxonomy can help instructors design effective assessments that are well aligned with the intended learning outcomes.
Ali Saleh Alammary
doaj   +2 more sources

Analyzing Documents with TF-IDF

open access: yesThe Programming Historian, 2019
This lesson focuses on a foundational natural language processing and information retrieval method called Term Frequency - Inverse Document Frequency (tf-idf).
Matthew J. Lavin
doaj   +2 more sources

Comprehensive Comparison of TF-IDF and Word2Vec in Product Sentiment Classification Using Machine Learning Models [PDF]

open access: yesJournal of Applied Informatics and Computing
Sentiment analysis supports data-driven decisions by turning product reviews into reliable polarity labels. We compare four text representations, TF-IDF, TF-IDF reduced via SVD, Word2Vec (trained from scratch), and a hybrid TF-IDF(SVD-300). Word2Vec, for
Asra Gretya Sinaga   +2 more
doaj   +2 more sources

Uzbek text summarization based on TF-IDF

open access: yesCoRR, 2023
The volume of information is increasing at an incredible rate with the rapid development of the Internet and electronic information services. Due to time constraints, we don't have the opportunity to read all this information. Even the task of analyzing textual data related to one field requires a lot of work. The text summarization task helps to solve
Khabibulla Madatov   +2 more
openaire   +3 more sources

A comparative study of keyword extraction algorithms for English texts

open access: yesJournal of Intelligent Systems, 2021
This study mainly analyzed the keyword extraction of English text. First, two commonly used algorithms, the term frequency–inverse document frequency (TF–IDF) algorithm and the keyphrase extraction algorithm (KEA), were introduced.
Li Jinye
doaj   +1 more source

Sentiment Analysis of Chinese Comments Based on Hybrid Vector Model [PDF]

open access: yesJisuanji gongcheng, 2020
In order to solve the problem of insufficient expression of sentiment information in the TF-IDF model,this paper proposes the Senti model to extract the sentiment information in the text,including positive/negative sentiment words,negative words ...
CHEN Xi, ZHU Xiaodong, GAO Guangkuo, XIAO Fangxiong
doaj   +1 more source

Implementasi Vector Space Model dalam Pembangkitan Frequently Asked Questions Otomatis dan Solusi yang Relevan untuk Keluhan Pelanggan

open access: yesScientific Journal of Informatics, 2015
Salah satu keunggulan dari sebuah lembaga/unit pelayanan adalah seberapa cepat dan akurat dalam menangani keluhan pelanggan. Keluhan yang disampaikan pelanggan umumnya memiliki kesamaan dengan keluhan-keluhan sebelumnya, sehingga solusi dari keluhan baru
Abdul Aziz   +2 more
doaj   +1 more source

Identifying Optimal Baseline Variant of Unsupervised Term Weighting in Question Classification Based on Bloom Taxonomy

open access: yesMendel, 2022
Examination is one of the common ways to evaluate the students’ cognitive levels in higher education institutions. Exam questions are labeled manually by educators in accordance with Bloom’s taxonomy cognitive domain. To ease the burden of the educators,
Anbuselvan Sangodiah   +5 more
doaj  

Multi-Class Text Classification on Khmer News Using Ensemble Method in Machine Learning Algorithms

open access: yesActa Informatica Pragensia, 2023
The research herein applies text classification with which to categorize Khmer news articles. News articles were collected from three online websites through web scraping and grouped into nine categories.
Raksmey Phann   +2 more
doaj   +1 more source

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