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When dealing with document similarity many methods exist today, like cosine similarity. More complex methods are also available based on the semantic analysis of textual information, which are computationally expensive and rarely used in…

Information Retrieval · Computer Science 2015-05-18 Giancarlo Crocetti

Spiking Neural Networks (SNN) are the so-called third generation of neural networks which attempt to more closely match the functioning of the biological brain. They inherently encode temporal data, allowing for training with less energy…

Computer Vision and Pattern Recognition · Computer Science 2021-05-17 Chethan M. Parameshwara , Simin Li , Cornelia Fermüller , Nitin J. Sanket , Matthew S. Evanusa , Yiannis Aloimonos

The Sequential Sentence Classification task within the domain of medical abstracts, termed as SSC, involves the categorization of sentences into pre-defined headings based on their roles in conveying critical information in the abstract. In…

Computation and Language · Computer Science 2024-06-03 Phat Lam , Lam Pham , Tin Nguyen , Hieu Tang , Michael Seidl , Medina Andresel , Alexander Schindler

In automatic speech recognition, many studies have shown performance improvements using language models (LMs). Recent studies have tried to use bidirectional LMs (biLMs) instead of conventional unidirectional LMs (uniLMs) for rescoring the…

Computation and Language · Computer Science 2019-05-17 Joongbo Shin , Yoonhyung Lee , Kyomin Jung

Sigma-Pi-Sigma neural networks (SPSNNs) as a kind of high-order neural networks can provide more powerful mapping capability than the traditional feedforward neural networks (Sigma-Sigma neural networks). In the existing literature, in…

Machine Learning · Computer Science 2018-02-02 Feng Li , Yan Liu , Khidir Shaib Mohamed , Wei Wu

Inspired by the notion of Center of Mass in physics, an extension called Semantic Center of Mass (SCOM) is proposed, and used to discover the abstract "topic" of a document. The notion is under a framework model called Understanding Map…

Computation and Language · Computer Science 2022-05-31 Gangli Liu

In vision-language pre-training (VLP), masked image modeling (MIM) has recently been introduced for fine-grained cross-modal alignment. However, in most existing methods, the reconstruction targets for MIM lack high-level semantics, and…

Computer Vision and Pattern Recognition · Computer Science 2024-03-04 Haowei Liu , Yaya Shi , Haiyang Xu , Chunfeng Yuan , Qinghao Ye , Chenliang Li , Ming Yan , Ji Zhang , Fei Huang , Bing Li , Weiming Hu

We present a supervised learning algorithm for text categorization which has brought the team of authors the 2nd place in the text categorization division of the 2012 Cybersecurity Data Mining Competition (CDMC'2012) and a 3rd prize…

Information Retrieval · Computer Science 2013-07-11 Hubert Haoyang Duan , Vladimir Pestov , Varun Singla

Text classification, as the task consisting in assigning categories to textual instances, is a very common task in information science. Methods learning distributed representations of words, such as word embeddings, have become popular in…

Computation and Language · Computer Science 2020-12-15 Arkaitz Zubiaga

Subwords have become the standard units of text in NLP, enabling efficient open-vocabulary models. With algorithms like byte-pair encoding (BPE), subword segmentation is viewed as a preprocessing step applied to the corpus before training.…

Computation and Language · Computer Science 2022-10-14 Francois Meyer , Jan Buys

We introduce a probabilistic framework for quantifying the semantic similarity between two groups of embeddings. We formulate the task of semantic similarity as a model comparison task in which we contrast a generative model which jointly…

Machine Learning · Computer Science 2019-05-02 Francisco Vargas , Kamen Brestnichki , Nils Hammerla

Composed image retrieval is a type of image retrieval task where the user provides a reference image as a starting point and specifies a text on how to shift from the starting point to the desired target image. However, most existing…

Computer Vision and Pattern Recognition · Computer Science 2023-09-19 Xingyu Yang , Daqing Liu , Heng Zhang , Yong Luo , Chaoyue Wang , Jing Zhang

The rise of generative chat-based Large Language Models (LLMs) over the past two years has spurred a race to develop systems that promise near-human conversational and reasoning experiences. However, recent studies indicate that the…

Computation and Language · Computer Science 2025-03-11 Daniel Guzman-Olivares , Lara Quijano-Sanchez , Federico Liberatore

A fundamental advantage of neural models for NLP is their ability to learn representations from scratch. However, in practice this often means ignoring existing external linguistic resources, e.g., WordNet or domain specific ontologies such…

Computation and Language · Computer Science 2017-04-26 Ye Zhang , Matthew Lease , Byron C. Wallace

A lot of effort is currently made to provide methods to analyze and understand deep neural network impressive performances for tasks such as image or text classification. These methods are mainly based on visualizing the important input…

Machine Learning · Statistics 2020-04-08 Laurent Vanni , Marco Corneli , Damon Mayaffre , Frédéric Precioso

Topic modeling has been a widely used tool for unsupervised text analysis. However, comprehensive evaluations of a topic model remain challenging. Existing evaluation methods are either less comparable across different models (e.g.,…

Computation and Language · Computer Science 2025-01-15 Xiaohao Yang , He Zhao , Dinh Phung , Wray Buntine , Lan Du

Task-oriented semantic communication enhances transmission efficiency by conveying semantic information rather than exact messages. Deep learning (DL)-based semantic communication can effectively cultivate the essential semantic knowledge…

Machine Learning · Computer Science 2025-05-27 Run Gu , Wei Xu , Zhaohui Yang , Dusit Niyato , Aylin Yener

Sentence embedding is an important research topic in natural language processing (NLP) since it can transfer knowledge to downstream tasks. Meanwhile, a contextualized word representation, called BERT, achieves the state-of-the-art…

Computation and Language · Computer Science 2020-06-02 Bin Wang , C. -C. Jay Kuo

Recently, the Large Language Model-based Phoneme-to-Grapheme (LLM-P2G) method has shown excellent performance in speech recognition tasks and has become a feasible direction to replace the traditional WFST decoding method. This framework…

Audio and Speech Processing · Electrical Eng. & Systems 2025-12-23 Te Ma , Nanjie Li , Hao Huang , Zhijian Ou

To resolve the semantic ambiguity in texts, we propose a model, which innovatively combines a knowledge graph with an improved attention mechanism. An existing knowledge base is utilized to enrich the text with relevant contextual concepts.…

Computation and Language · Computer Science 2024-01-30 Siyu Li , Lu Chen , Chenwei Song , Xinyi Liu
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