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Modern Large Language Models (LLMs) are often criticized for producing repetitive and homogeneous text, despite possessing vast latent vocabularies. While previous research has focused on model knowledge and training data, we investigate…

Computation and Language · Computer Science 2026-05-27 Samer Awad , Javier Conde , Carlos Arriaga , Tairan Fu , Javier Coronado-Blázquez , Pedro Reviriego

We study open-world multi-label text classification under extremely weak supervision (XWS), where the user only provides a brief description for classification objectives without any labels or ground-truth label space. Similar single-label…

Computation and Language · Computer Science 2024-07-09 Xintong Li , Jinya Jiang , Ria Dharmani , Jayanth Srinivasa , Gaowen Liu , Jingbo Shang

Electronic Healthcare Records contain large volumes of unstructured data, including extensive free text. Yet this source of detailed information often remains under-used because of a lack of methodologies to extract interpretable content in…

Computation and Language · Computer Science 2018-07-10 M. Tarik Altuncu , Erik Mayer , Sophia N. Yaliraki , Mauricio Barahona

Brain tumor segmentation remains challenging because the three standard sub-regions, i.e., whole tumor (WT), tumor core (TC), and enhancing tumor (ET), often exhibit ambiguous visual boundaries. Integrating radiological description texts…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Bahram Mohammadi , Ta Duc Huy , Afrouz Sheikholeslami , Qi Chen , Vu Minh Hieu Phan , Sam White , Minh-Son To , Xuyun Zhang , Amin Beheshti , Luping Zhou , Yuankai Qi

Weakly supervised semantic segmentation (WSSS) trains dense pixel-level segmentation models from partial or coarse annotations such as bounding boxes, scribbles, or image-level tags. While recent work leverages foundation models such as the…

Computer Vision and Pattern Recognition · Computer Science 2026-05-14 Stefano Colamonaco , Andrei-Bogdan Florea , Jaron Maene

Object counting is a fundamental task in computer vision, with broad applicability in many real-world scenarios. Fully-supervised counting methods require costly point-level annotations per object. Few weakly-supervised methods leverage…

Computer Vision and Pattern Recognition · Computer Science 2026-02-16 Xiaowen Zhang , Zijie Yue , Yong Luo , Cairong Zhao , Qijun Chen , Miaojing Shi

Multi-class colorectal tissue classification is a challenging problem that is typically addressed in a setting, where it is assumed that ample amounts of training data is available. However, manual annotation of fine-grained colorectal…

Computer Vision and Pattern Recognition · Computer Science 2024-01-03 Dmitry Demidov , Roba Al Majzoub , Amandeep Kumar , Fahad Khan

To overcome the data sparsity issue in short text topic modeling, existing methods commonly rely on data augmentation or the data characteristic of short texts to introduce more word co-occurrence information. However, most of them do not…

Computation and Language · Computer Science 2022-11-24 Xiaobao Wu , Anh Tuan Luu , Xinshuai Dong

In this research, we use user defined labels from three internet text sources (Reddit, Stackexchange, Arxiv) to train 21 different machine learning models for the topic classification task of detecting cybersecurity discussions in natural…

Information Retrieval · Computer Science 2024-02-28 Elijah Pelofske , Lorie M. Liebrock , Vincent Urias

The task of weakly supervised temporal sentence grounding (WSTSG) aims to detect temporal intervals corresponding to a language description from untrimmed videos with only video-level video-language correspondence. For an anchor sample,…

Computer Vision and Pattern Recognition · Computer Science 2025-05-13 Lu Dong , Haiyu Zhang , Hongjie Zhang , Yifei Huang , Zhen-Hua Ling , Yu Qiao , Limin Wang , Yali Wang

Sentiment analysis, a popular technique for opinion mining, has been used by the software engineering research community for tasks such as assessing app reviews, developer emotions in issue trackers and developer opinions on APIs. Past…

Computation and Language · Computer Science 2018-12-27 Achyudh Ram , Meiyappan Nagappan

Due to the high number of users on social media and the massive amounts of queries requested every second to share a new video, picture, or message, social platforms struggle to manage this humungous amount of data that is endlessly coming…

Information Retrieval · Computer Science 2022-11-03 Baadr Suleman M Alwheepy , Leandros Maglaras , Nick Ayres

Sentiment Analysis is a branch of Affective Computing usually considered a binary classification task. In this line of reasoning, Sentiment Analysis can be applied in several contexts to classify the attitude expressed in text samples, for…

Information Retrieval · Computer Science 2020-08-13 Flavio Carvalho , Gustavo Paiva Guedes

Recently, sentiment-aware pre-trained language models (PLMs) demonstrate impressive results in downstream sentiment analysis tasks. However, they neglect to evaluate the quality of their constructed sentiment representations; they just…

Computation and Language · Computer Science 2024-04-02 Jaemin Kim , Yohan Na , Kangmin Kim , Sang Rak Lee , Dong-Kyu Chae

Hierarchical text classification, which aims to classify text documents into a given hierarchy, is an important task in many real-world applications. Recently, deep neural models are gaining increasing popularity for text classification due…

Computation and Language · Computer Science 2019-01-01 Yu Meng , Jiaming Shen , Chao Zhang , Jiawei Han

Training automatic speech recognition (ASR) systems requires large amounts of well-curated paired data. However, human annotators usually perform "non-verbatim" transcription, which can result in poorly trained models. In this paper, we…

Audio and Speech Processing · Electrical Eng. & Systems 2023-09-28 Dongji Gao , Hainan Xu , Desh Raj , Leibny Paola Garcia Perera , Daniel Povey , Sanjeev Khudanpur

Semantic segmentation is a core computer vision problem, but the high costs of data annotation have hindered its wide application. Weakly-Supervised Semantic Segmentation (WSSS) offers a cost-efficient workaround to extensive labeling in…

Computer Vision and Pattern Recognition · Computer Science 2024-05-13 Elham Ravanbakhsh , Cheng Niu , Yongqing Liang , J. Ramanujam , Xin Li

Automatic text classification (TC) research can be used for real-world problems such as the classification of in-patient discharge summaries and medical text reports, which is beneficial to make medical documents more understandable to…

Computation and Language · Computer Science 2018-12-06 Ying Shen , Qiang Zhang , Jin Zhang , Jiyue Huang , Yuming Lu , Kai Lei

This paper explores semi-supervised training for sequence tasks, such as Optical Character Recognition or Automatic Speech Recognition. We propose a novel loss function $\unicode{x2013}$ SoftCTC $\unicode{x2013}$ which is an extension of…

Machine Learning · Computer Science 2023-09-20 Martin Kišš , Michal Hradiš , Karel Beneš , Petr Buchal , Michal Kula

Health Mention Classification (HMC) plays a critical role in leveraging social media posts for real-time tracking and public health monitoring. Nevertheless, the process of HMC presents significant challenges due to its intricate nature,…

Computation and Language · Computer Science 2025-05-01 Reem Abdel-Salam , Mary Adewunmi