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Topic models are Bayesian models that are frequently used to capture the latent structure of certain corpora of documents or images. Each data element in such a corpus (for instance each item in a collection of scientific articles) is…

Machine Learning · Statistics 2018-02-05 Behrooz Ghorbani , Hamid Javadi , Andrea Montanari

The task of finding a criterion allowing to distinguish a text from an arbitrary set of words is rather relevant in itself, for instance, in the aspect of development of means for internet-content indexing or separating signals and noise in…

Computation and Language · Computer Science 2007-10-02 D. V. Lande , A. A. Snarskii

Text Categorization is traditionally done by using the term frequency and inverse document frequency.This type of method is not very good because, some words which are not so important may appear in the document .The term frequency of…

Information Retrieval · Computer Science 2016-11-25 Srikanth Bethu , G Charless Babu , J Vinoda , E Priyadarshini , M Raghavendra rao

Terms in diachronic text corpora may exhibit a high degree of semantic dynamics that is only partially captured by the common notion of semantic change. The new measure of context volatility that we propose models the degree by which terms…

Computation and Language · Computer Science 2017-11-16 Christian Kahmann , Andreas Niekler , Gerhard Heyer

In this paper, a simple text categorization method using term-class relevance measures is proposed. Initially, text documents are processed to extract significant terms present in them. For every term extracted from a document, we compute…

Information Retrieval · Computer Science 2016-10-18 D S Guru , Mahamad Suhil

Text categorization is the process of grouping documents into categories based on their contents. This process is important to make information retrieval easier, and it became more important due to the huge textual information available…

Information Retrieval · Computer Science 2015-01-08 Ashraf Odeh , Aymen Abu-Errub , Qusai Shambour , Nidal Turab

To build an interpretable neural text classifier, most of the prior work has focused on designing inherently interpretable models or finding faithful explanations. A new line of work on improving model interpretability has just started, and…

Computation and Language · Computer Science 2020-11-20 Hanjie Chen , Yangfeng Ji

Word feature vectors have been proven to improve many NLP tasks. With recent advances in unsupervised learning of these feature vectors, it became possible to train it with much more data, which also resulted in better quality of learned…

Computation and Language · Computer Science 2022-11-29 Marius Sajgalik , Michal Barla , Maria Bielikova

We propose a resampling-based approach for assessing keyness in corpus linguistics based on suggestions by Gries (2006, 2022). Traditional approaches based on hypothesis tests (e.g. Likelihood Ratio) model the copora as independent…

Computation and Language · Computer Science 2023-08-28 Thoralf Mildenberger

A high degree of topical diversity is often considered to be an important characteristic of interesting text documents. A recent proposal for measuring topical diversity identifies three elements for assessing diversity: words, topics, and…

Information Retrieval · Computer Science 2017-01-17 Hosein Azarbonyad , Mostafa Dehghani , Tom Kenter , Maarten Marx , Jaap Kamps , Maarten de Rijke

We present algorithms for topic modeling based on the geometry of cross-document word-frequency patterns. This perspective gains significance under the so called separability condition. This is a condition on existence of novel-words that…

Machine Learning · Statistics 2013-03-19 Weicong Ding , Mohammad H. Rohban , Prakash Ishwar , Venkatesh Saligrama

In this paper I propose a new way of measuring linguistic productivity that objectively assesses the ability of an affix to be used to coin new complex words and, unlike other popular measures, is not directly dependent upon token…

Computation and Language · Computer Science 2023-08-25 Sergei Monakhov

Estimating the difficulty level of math word problems is an important task for many educational applications. Identification of relevant and irrelevant sentences in math word problems is an important step for calculating the difficulty…

Computation and Language · Computer Science 2014-11-24 Suleyman Cetintas , Luo Si , Yan Ping Xin , Dake Zhang , Joo Young Park , Ron Tzur

A key principle in assessing textual similarity is measuring the degree of semantic overlap between two texts by considering the word alignment. Such alignment-based approaches are intuitive and interpretable; however, they are empirically…

Computation and Language · Computer Science 2020-11-17 Sho Yokoi , Ryo Takahashi , Reina Akama , Jun Suzuki , Kentaro Inui

Detecting text generated by large language models (LLMs) is crucial but challenging. Existing detectors depend on impractical assumptions, such as white-box settings, or solely rely on text-level features, leading to imprecise detection…

Artificial Intelligence · Computer Science 2026-02-17 Xuecong Li , Xiaohong Li , Qiang Hu , Yao Zhang , Junjie Wang

Text features that are correlated with class labels, but do not directly cause them, are sometimesuseful for prediction, but they may not be insightful. As an alternative to traditional correlation-basedfeature selection, causal inference…

Machine Learning · Computer Science 2020-10-12 Guohou Shan , James Foulds , Shimei Pan

We intend to generate low-dimensional explicit distributional semantic vectors. In explicit semantic vectors, each dimension corresponds to a word, so word vectors are interpretable. In this research, we propose a new approach to obtain…

Computation and Language · Computer Science 2021-11-29 Atefe Pakzad , Morteza Analoui

Text classification helps analyse texts for semantic meaning and relevance, by mapping the words against this hierarchy. An analysis of various types of texts is invaluable to understanding both their semantic meaning, as well as their…

Machine Learning · Computer Science 2022-11-16 Chaitanya Chadha , Vandit Gupta , Deepak Gupta , Ashish Khanna

Topic models, such as Latent Dirichlet Allocation (LDA), posit that documents are drawn from admixtures of distributions over words, known as topics. The inference problem of recovering topics from admixtures, is NP-hard. Assuming…

Machine Learning · Statistics 2014-11-05 Trapit Bansal , Chiranjib Bhattacharyya , Ravindran Kannan

Language students are most engaged while reading texts at an appropriate difficulty level. However, existing methods of evaluating text difficulty focus mainly on vocabulary and do not prioritize grammatical features, hence they do not work…

Computation and Language · Computer Science 2017-02-17 Shuhan Wang , Erik Andersen