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Word clouds became a standard tool for presenting results of natural language processing methods such as topic modelling. They exhibit most important words, where word size is often chosen proportional to the relevance of words within a…

统计计算 · 统计学 2023-02-14 Peter Winker

Follow-up conversations with virtual assistants (VAs) enable a user to seamlessly interact with a VA without the need to repeatedly invoke it using a keyword (after the first query). Therefore, accurate Device-directed Speech Detection…

音频与语音处理 · 电气工程与系统科学 2024-11-06 Ognjen , Rudovic , Pranay Dighe , Yi Su , Vineet Garg , Sameer Dharur , Xiaochuan Niu , Ahmed H. Abdelaziz , Saurabh Adya , Ahmed Tewfik

Understanding the structure of complex, nonstationary, high-dimensional time-evolving signals is a central challenge in scientific data analysis. In many domains, such as speech and biomedical signal processing, the ability to learn…

机器学习 · 计算机科学 2026-01-13 Ioannis Ziogas , Aamna Al Shehhi , Ahsan H. Khandoker , Leontios J. Hadjileontiadis

Large Language Models (LLMs) excel at reasoning and planning when trained on chainof-thought (CoT) data, where the step-by-step thought process is explicitly outlined by text tokens. However, this results in lengthy inputs where many words…

计算与语言 · 计算机科学 2025-09-03 DiJia Su , Hanlin Zhu , Yingchen Xu , Jiantao Jiao , Yuandong Tian , Qinqing Zheng

In this paper, we propose a method for resume rating using Latent Dirichlet Allocation (LDA) and entity detection with SpaCy. The proposed method first extracts relevant entities such as education, experience, and skills from the resume…

计算与语言 · 计算机科学 2023-08-01 Vidhita Jagwani , Smit Meghani , Krishna Pai , Sudhir Dhage

Researchers in the behavioral and social sciences use linear discriminant analysis (LDA) for predictions of group membership (classification) and for identifying the variables most relevant to group separation among a set of continuous…

统计方法学 · 统计学 2025-05-28 Ricarda Graf , Marina Zeldovich , Sarah Friedrich

Human infants acquire their verbal lexicon with minimal prior knowledge of language based on the statistical properties of phonological distributions and the co-occurrence of other sensory stimuli. This study proposes a novel fully…

人工智能 · 计算机科学 2023-08-22 Akira Taniguchi , Hiroaki Murakami , Ryo Ozaki , Tadahiro Taniguchi

Latent Dirichlet Allocation (LDA) models trained without stopword removal often produce topics with high posterior probabilities on uninformative words, obscuring the underlying corpus content. Even when canonical stopwords are manually…

计算与语言 · 计算机科学 2017-10-17 Angela Fan , Finale Doshi-Velez , Luke Miratrix

Linear Discriminant Analysis (LDA) is a well-known method for dimensionality reduction and classification. Previous studies have also extended the binary-class case into multi-classes. However, many applications, such as object detection…

机器学习 · 计算机科学 2013-09-24 Gang Chen

Topic modeling has found wide application in many problems where latent structures of the data are crucial for typical inference tasks. When applying a topic model, a relatively standard pre-processing step is to first build a vocabulary of…

计算机视觉与模式识别 · 计算机科学 2020-01-17 Yuzhen Ding , Baoxin Li

Visual Question Answering (VQA) emerges as one of the most fascinating topics in computer vision recently. Many state of the art methods naively use holistic visual features with language features into a Long Short-Term Memory (LSTM)…

计算机视觉与模式识别 · 计算机科学 2015-11-19 Aiwen Jiang , Fang Wang , Fatih Porikli , Yi Li

Voice controlled virtual assistants (VAs) are now available in smartphones, cars, and standalone devices in homes. In most cases, the user needs to first "wake-up" the VA by saying a particular word/phrase every time he or she wants the VA…

人机交互 · 计算机科学 2019-02-05 Atta Norouzian , Bogdan Mazoure , Dermot Connolly , Daniel Willett

Diadochokinetic speech tasks (DDK), in which participants repeatedly produce syllables, are commonly used as part of the assessment of speech motor impairments. These studies rely on manual analyses that are time-intensive, subjective, and…

音频与语音处理 · 电气工程与系统科学 2022-06-30 Yael Segal , Kasia Hitczenko , Matthew Goldrick , Adam Buchwald , Angela Roberts , Joseph Keshet

This paper investigates how Transformer language models (LMs) fine-tuned for acceptability classification capture linguistic features. Our approach uses the best practices of topological data analysis (TDA) in NLP: we construct directed…

计算与语言 · 计算机科学 2023-10-04 Irina Proskurina , Irina Piontkovskaya , Ekaterina Artemova

In this work, we present Lexical Unit Analysis (LUA), a framework for general sequence segmentation tasks. Given a natural language sentence, LUA scores all the valid segmentation candidates and utilizes dynamic programming (DP) to extract…

计算与语言 · 计算机科学 2021-04-19 Yangming Li , Lemao Liu , Shuming Shi

Large language models (LLMs) can produce long, coherent passages of text, suggesting that LLMs, although trained on next-word prediction, must represent the latent structure that characterizes a document. Prior work has found that internal…

计算与语言 · 计算机科学 2023-12-25 Liyi Zhang , R. Thomas McCoy , Theodore R. Sumers , Jian-Qiao Zhu , Thomas L. Griffiths

Voice Timbre Attribute Detection (vTAD) plays a pivotal role in fine-grained timbre modeling for speech generation tasks. However, it remains challenging due to the inherently subjective nature of timbre descriptors and the severe label…

声音 · 计算机科学 2025-08-25 Zhiyu Wu , Jingyi Fang , Yufei Tang , Yuanzhong Zheng , Yaoxuan Wang , Haojun Fei

The latent Dirichlet allocation (LDA) model is a widely-used latent variable model in machine learning for text analysis. Inference for this model typically involves a single-site collapsed Gibbs sampling step for latent variables…

统计计算 · 统计学 2016-08-03 Xin Zhang , Scott A. Sisson

Sound event localization frameworks based on deep neural networks have shown increased robustness with respect to reverberation and noise in comparison to classical parametric approaches. In particular, recurrent architectures that…

The problem of searching for experts in a given academic field is hugely important in both industry and academia. We study exactly this issue with respect to a database of authors and their publications. The idea is to use Latent Semantic…

社会与信息网络 · 计算机科学 2013-11-26 Charanpal Dhanjal , Stéphan Clémençon