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For sequence transduction tasks like speech recognition, a strong structured prior model encodes rich information about the target space, implicitly ruling out invalid sequences by assigning them low probability. In this work, we propose…

Computation and Language · Computer Science 2020-02-25 Wei-Ning Hsu , Ann Lee , Gabriel Synnaeve , Awni Hannun

In this paper we present a technique of NLP to tackle the problem of inference relation (NLI) between pairs of sentences in a target language of choice without a language-specific training dataset. We exploit a generic translation dataset,…

Computation and Language · Computer Science 2023-09-07 Lorenzo Corradi , Alessandro Manenti , Francesca Del Bonifro , Francesco Setti , Dario Del Sorbo

In recent years, speech diffusion models have advanced rapidly. Alongside the widely used U-Net architecture, transformer-based models such as the Diffusion Transformer (DiT) have also gained attention. However, current DiT speech models…

Recent neural supervised topic segmentation models achieve distinguished superior effectiveness over unsupervised methods, with the availability of large-scale training corpora sampled from Wikipedia. These models may, however, suffer from…

Computation and Language · Computer Science 2022-09-20 Linzi Xing , Patrick Huber , Giuseppe Carenini

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…

Computer Vision and Pattern Recognition · Computer Science 2020-01-17 Yuzhen Ding , Baoxin Li

Context: Topic modeling finds human-readable structures in unstructured textual data. A widely used topic modeler is Latent Dirichlet allocation. When run on different datasets, LDA suffers from "order effects" i.e. different topics are…

Software Engineering · Computer Science 2018-03-16 Amritanshu Agrawal , Wei Fu , Tim Menzies

The question of how to determine the number of independent latent factors (topics) in mixture models such as Latent Dirichlet Allocation (LDA) is of great practical importance. In most applications, the exact number of topics is unknown,…

Machine Learning · Statistics 2014-01-23 E. D. Gutiérrez

Pre-trained vision-language models (VLMs), such as CLIP, have exhibited remarkable performance across various downstream tasks by aligning text and images in a unified embedding space. However, due to the imbalanced distribution of…

Computer Vision and Pattern Recognition · Computer Science 2024-10-15 Yunfan Yang , Chaoquan Jiang , Zhiyu Lin , Jinlin Xiao , Jiaming Zhang , Jitao Sang

In recent research, Tensor Product Representation (TPR) is applied for the systematic generalization task of deep neural networks by learning the compositional structure of data. However, such prior works show limited performance in…

Machine Learning · Computer Science 2024-06-04 Taewon Park , Inchul Choi , Minho Lee

We propose a Bayesian generative model for incorporating prior domain knowledge into hierarchical topic modeling. Although embedded topic models (ETMs) and its variants have gained promising performance in text analysis, they mainly focus…

Computation and Language · Computer Science 2022-09-29 Dongsheng Wang , Yishi Xu , Miaoge Li , Zhibin Duan , Chaojie Wang , Bo Chen , Mingyuan Zhou

A growing body of research has demonstrated the inability of NLP models to generalize compositionally and has tried to alleviate it through specialized architectures, training schemes, and data augmentation, among other approaches. In this…

Computation and Language · Computer Science 2022-11-03 Shivanshu Gupta , Sameer Singh , Matt Gardner

Despite impressive performance on many text classification tasks, deep neural networks tend to learn frequent superficial patterns that are specific to the training data and do not always generalize well. In this work, we observe this…

Machine Learning · Computer Science 2021-06-16 Sachin Kumar , Shuly Wintner , Noah A. Smith , Yulia Tsvetkov

Topic modeling is one of the most powerful techniques in text mining for data mining, latent data discovery, and finding relationships among data, text documents. Researchers have published many articles in the field of topic modeling and…

Information Retrieval · Computer Science 2018-12-07 Hamed Jelodar , Yongli Wang , Chi Yuan , Xia Feng , Xiahui Jiang , Yanchao Li , Liang Zhao

Overlapping speech diarization has been traditionally treated as a multi-label classification problem. In this paper, we reformulate this task as a single-label prediction problem by encoding multiple binary labels into a single label with…

Sound · Computer Science 2022-04-01 Zhihao Du , Shiliang Zhang , Siqi Zheng , Zhijie Yan

Minimizing prediction uncertainty on unlabeled data is a key factor to achieve good performance in semi-supervised learning (SSL). The prediction uncertainty is typically expressed as the \emph{entropy} computed by the transformed…

Machine Learning · Computer Science 2021-12-16 Jing Li , Yuangang Pan , Ivor W. Tsang

Textual Inversion (TI) is an efficient approach to text-to-image personalization but often fails on complex prompts. We trace these failures to embedding norm inflation: learned tokens drift to out-of-distribution magnitudes, degrading…

Machine Learning · Computer Science 2026-03-11 Kunhee Kim , NaHyeon Park , Kibeom Hong , Hyunjung Shim

In traditional Distributional Semantic Models (DSMs) the multiple senses of a polysemous word are conflated into a single vector space representation. In this work, we propose a DSM that learns multiple distributional representations of a…

Computation and Language · Computer Science 2019-04-12 Eleftheria Briakou , Nikos Athanasiou , Alexandros Potamianos

Self Supervised learning (SSL) has demonstrated its effectiveness in feature learning from unlabeled data. Regarding this success, there have been some arguments on the role that mutual information plays within the SSL framework. Some works…

Computer Vision and Pattern Recognition · Computer Science 2024-12-04 Salman Mohamadi , Gianfranco Doretto , Donald A. Adjeroh

Keyword Spotting (KWS) models on embedded devices should adapt fast to new user-defined words without forgetting previous ones. Embedded devices have limited storage and computational resources, thus, they cannot save samples or update…

Sound · Computer Science 2023-07-25 Umberto Michieli , Pablo Peso Parada , Mete Ozay

Topic models have been widely explored as probabilistic generative models of documents. Traditional inference methods have sought closed-form derivations for updating the models, however as the expressiveness of these models grows, so does…

Computation and Language · Computer Science 2018-05-23 Yishu Miao , Edward Grefenstette , Phil Blunsom