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This paper studies the automated categorization and extraction of scientific concepts from titles of scientific articles, in order to gain a deeper understanding of their key contributions and facilitate the construction of a generic…

Information Retrieval · Computer Science 2017-11-10 Adit Krishnan , Aravind Sankar , Shi Zhi , Jiawei Han

Many important classification problems, such as object classification, speech recognition, and machine translation, have been tackled by the supervised learning paradigm in the past, where training corpora of parallel input-output pairs are…

Machine Learning · Computer Science 2019-06-10 Yu Liu , Li Deng , Jianshu Chen , Chang Wen Chen

We study the problem of choosing algorithm hyper-parameters in unsupervised domain adaptation, i.e., with labeled data in a source domain and unlabeled data in a target domain, drawn from a different input distribution. We follow the…

This paper focuses on the problem of unsupervised relation extraction. Existing probabilistic generative model-based relation extraction methods work by extracting sentence features and using these features as inputs to train a generative…

Computation and Language · Computer Science 2020-09-29 Chenhan Yuan , Ryan Rossi , Andrew Katz , Hoda Eldardiry

We present a system for bottom-up cumulative learning of myriad concepts corresponding to meaningful character strings, and their part-related and prediction edges. The learning is self-supervised in that the concepts discovered are used as…

Machine Learning · Computer Science 2021-12-20 Omid Madani

Assessing spoken language is challenging, and quantifying pronunciation metrics for machine learning models is even harder. However, for the Holy Quran, this task is simplified by the rigorous recitation rules (tajweed) established by…

Audio and Speech Processing · Electrical Eng. & Systems 2025-09-03 Abdullah Abdelfattah , Mahmoud I. Khalil , Hazem Abbas

For challenging machine learning problems such as zero-shot learning and fine-grained categorization, embedding learning is the machinery of choice because of its ability to learn generic notions of similarity, as opposed to class-specific…

Computer Vision and Pattern Recognition · Computer Science 2019-12-19 Ujjal Kr Dutta , Mehrtash Harandi , Chandra Sekhar Chellu

This paper presents a new Bayesian non-parametric model by extending the usage of Hierarchical Dirichlet Allocation to extract tree structured word clusters from text data. The inference algorithm of the model collects words in a cluster if…

Computation and Language · Computer Science 2016-01-22 Halid Ziya Yerebakan , Fitsum Reda , Yiqiang Zhan , Yoshihisa Shinagawa

Unsupervised discovery of acoustic tokens from audio corpora without annotation and learning vector representations for these tokens have been widely studied. Although these techniques have been shown successful in some applications such as…

Computation and Language · Computer Science 2018-04-03 Da-Rong Liu , Kuan-Yu Chen , Hung-Yi Lee , Lin-shan Lee

Association Rule mining is one of the most important fields in data mining and knowledge discovery. This paper proposes an algorithm that combines the simple association rules derived from basic Apriori Algorithm with the multiple minimum…

Databases · Computer Science 2014-10-07 Walaa Medhat , Ahmed Hassan Yousef , Hoda Korashy Mohamed

With the widespread use of social networks, detecting the topics discussed on these platforms has become a significant challenge. Current approaches primarily rely on frequent pattern mining or semantic relations, often neglecting the…

Computation and Language · Computer Science 2024-08-22 Mehrdad Ranjbar Khadivi , Shahin Akbarpour , Mohammad-Reza Feizi-Derakhshi , Babak Anari

Keyphrase extraction aims at automatically extracting a list of "important" phrases representing the key concepts in a document. Prior approaches for unsupervised keyphrase extraction resorted to heuristic notions of phrase importance via…

Computation and Language · Computer Science 2023-02-20 Rishabh Joshi , Vidhisha Balachandran , Emily Saldanha , Maria Glenski , Svitlana Volkova , Yulia Tsvetkov

This work describes a large-scale analysis of sentiment associations in popular word embedding models along the lines of gender and ethnicity but also along the less frequently studied dimensions of socioeconomic status, age, sexual…

Computers and Society · Computer Science 2020-07-01 David Rozado

Large language models have been widely adopted in natural language processing, yet they face the challenge of generating unreliable content. Recent works aim to reduce misinformation and hallucinations by resorting to attribution as a means…

Computation and Language · Computer Science 2024-03-28 Dongfang Li , Zetian Sun , Baotian Hu , Zhenyu Liu , Xinshuo Hu , Xuebo Liu , Min Zhang

Cross-modal hashing is an important approach for multimodal data management and application. Existing unsupervised cross-modal hashing algorithms mainly rely on data features in pre-trained models to mine their similarity relationships.…

Information Retrieval · Computer Science 2022-07-12 Liang Li , Baihua Zheng , Weiwei Sun

Recent research has shown that word embedding spaces learned from text corpora of different languages can be aligned without any parallel data supervision. Inspired by the success in unsupervised cross-lingual word embeddings, in this paper…

Computation and Language · Computer Science 2018-09-24 Yu-An Chung , Wei-Hung Weng , Schrasing Tong , James Glass

Resolving abstract anaphora is an important, but difficult task for text understanding. Yet, with recent advances in representation learning this task becomes a more tangible aim. A central property of abstract anaphora is that it…

Computation and Language · Computer Science 2017-07-24 Ana Marasović , Leo Born , Juri Opitz , Anette Frank

We observe a recent behaviour on social media, in which users intentionally remove consonantal dots from Arabic letters, in order to bypass content-classification algorithms. Content classification is typically done by fine-tuning…

Computation and Language · Computer Science 2021-11-19 Aviad Rom , Kfir Bar

Existing deep hierarchical topic models are able to extract semantically meaningful topics from a text corpus in an unsupervised manner and automatically organize them into a topic hierarchy. However, it is unclear how to incorporate prior…

Machine Learning · Computer Science 2021-10-28 Zhibin Duan , Yishi Xu , Bo Chen , Dongsheng Wang , Chaojie Wang , Mingyuan Zhou

Structure learning is a core problem in AI central to the fields of neuro-symbolic AI and statistical relational learning. It consists in automatically learning a logical theory from data. The basis for structure learning is mining…

Artificial Intelligence · Computer Science 2023-06-21 Jonathan Feldstein , Dominic Phillips , Efthymia Tsamoura