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Taxonomy completion, enriching existing taxonomies by inserting new concepts as parents or attaching them as children, has gained significant interest. Previous approaches embed concepts as vectors in Euclidean space, which makes it…

计算与语言 · 计算机科学 2024-06-19 Wei Xue , Yongliang Shen , Wenqi Ren , Jietian Guo , Shiliang Pu , Weiming Lu

Topic taxonomy discovery aims at uncovering topics of different abstraction levels and constructing hierarchical relations between them. Unfortunately, most of prior work can hardly model semantic scopes of words and topics by holding the…

计算与语言 · 计算机科学 2024-08-28 Yuyin Lu , Hegang Chen , Pengbo Mao , Yanghui Rao , Haoran Xie , Fu Lee Wang , Qing Li

Taxonomies are valuable resources for many applications, but the limited coverage due to the expensive manual curation process hinders their general applicability. Prior works attempt to automatically expand existing taxonomies to improve…

计算与语言 · 计算机科学 2021-09-23 Mingyu Derek Ma , Muhao Chen , Te-Lin Wu , Nanyun Peng

Taxonomies are fundamental to many real-world applications in various domains, serving as structural representations of knowledge. To deal with the increasing volume of new concepts needed to be organized as taxonomies, researchers turn to…

计算与语言 · 计算机科学 2022-02-11 Minhao Jiang , Xiangchen Song , Jieyu Zhang , Jiawei Han

Recently, increasing efforts are put into learning continual representations for symbolic knowledge bases (KBs). However, these approaches either only embed the data-level knowledge (ABox) or suffer from inherent limitations when dealing…

人工智能 · 计算机科学 2022-09-23 Bo Xiong , Nico Potyka , Trung-Kien Tran , Mojtaba Nayyeri , Steffen Staab

Taxonomy construction is not only a fundamental task for semantic analysis of text corpora, but also an important step for applications such as information filtering, recommendation, and Web search. Existing pattern-based methods extract…

数据库 · 计算机科学 2018-12-27 Chao Zhang , Fangbo Tao , Xiusi Chen , Jiaming Shen , Meng Jiang , Brian Sadler , Michelle Vanni , Jiawei Han

Geometric embeddings have recently received attention for their natural ability to represent transitive asymmetric relations via containment. Box embeddings, where objects are represented by n-dimensional hyperrectangles, are a particularly…

机器学习 · 计算机科学 2020-10-30 Shib Sankar Dasgupta , Michael Boratko , Dongxu Zhang , Luke Vilnis , Xiang Lorraine Li , Andrew McCallum

A taxonomy is a hierarchical graph containing knowledge to provide valuable insights for various web applications. However, the manual construction of taxonomies requires significant human effort. As web content continues to expand at an…

社会与信息网络 · 计算机科学 2025-11-18 Sahil Mishra , Avi Patni , Niladri Chatterjee , Tanmoy Chakraborty

Taxonomies consist of machine-interpretable semantics and provide valuable knowledge for many web applications. For example, online retailers (e.g., Amazon and eBay) use taxonomies for product recommendation, and web search engines (e.g.,…

计算与语言 · 计算机科学 2020-01-28 Jiaming Shen , Zhihong Shen , Chenyan Xiong , Chi Wang , Kuansan Wang , Jiawei Han

Knowledge graphs such as DBpedia, Freebase or Wikidata always contain a taxonomic backbone that allows the arrangement and structuring of various concepts in accordance with the hypo-hypernym ("class-subclass") relationship. With the rapid…

Labeling and maintaining a commercial sound effects library is a time-consuming task exacerbated by databases that continually grow in size and undergo taxonomy updates. Moreover, sound search and taxonomy creation are complicated by…

声音 · 计算机科学 2022-08-22 Alison B. Ma , Alexander Lerch

Automatic construction of a taxonomy supports many applications in e-commerce, web search, and question answering. Existing taxonomy expansion or completion methods assume that new concepts have been accurately extracted and their embedding…

计算与语言 · 计算机科学 2021-06-08 Qingkai Zeng , Jinfeng Lin , Wenhao Yu , Jane Cleland-Huang , Meng Jiang

Taxonomy Expansion, which models complex concepts and their relations, can be formulated as a set representation learning task. The generalization of set, fuzzy set, incorporates uncertainty and measures the information within a semantic…

机器学习 · 计算机科学 2025-06-11 Fred Xu , Song Jiang , Zijie Huang , Xiao Luo , Shichang Zhang , Adrian Chen , Yizhou Sun

Knowledge base completion (KBC) aims to automatically infer missing facts by exploiting information already present in a knowledge base (KB). A promising approach for KBC is to embed knowledge into latent spaces and make predictions from…

人工智能 · 计算机科学 2020-10-30 Ralph Abboud , İsmail İlkan Ceylan , Thomas Lukasiewicz , Tommaso Salvatori

Deep learning methods are primarily proposed for supervised learning of images or text with limited applications to clustering problems. In contrast, tabular data with heterogeneous features pose unique challenges in representation…

机器学习 · 计算机科学 2024-05-20 Shourav B. Rabbani , Ivan V. Medri , Manar D. Samad

Recognizing similarities among entities is central to both human cognition and computational intelligence. Within this broader landscape, Entity Set Expansion is one prominent task aimed at taking an initial set of (tuples of) entities and…

人工智能 · 计算机科学 2026-01-08 Giovanni Amendola , Pietro Cofone , Marco Manna , Aldo Ricioppo

An embedding is a function that maps entities from one algebraic structure into another while preserving certain characteristics. Embeddings are being used successfully for mapping relational data or text into vector spaces where they can…

人工智能 · 计算机科学 2019-02-28 Maxat Kulmanov , Wang Liu-Wei , Yuan Yan , Robert Hoehndorf

We present TaxaBind, a unified embedding space for characterizing any species of interest. TaxaBind is a multimodal embedding space across six modalities: ground-level images of species, geographic location, satellite image, text, audio,…

计算机视觉与模式识别 · 计算机科学 2024-11-04 Srikumar Sastry , Subash Khanal , Aayush Dhakal , Adeel Ahmad , Nathan Jacobs

Foundation models have established unified representations for natural language processing, yet this paradigm remains largely unexplored for tabular data. Existing methods face fundamental limitations: LLM-based approaches lack…

计算与语言 · 计算机科学 2026-05-07 Minjie Qiang , Mingming Zhang , Xiaoyi Bao , Xing Fu , Yu Cheng , Weiqiang Wang , Zhongqing Wang , Ningtao Wang

Embedded topic models are able to learn interpretable topics even with large and heavy-tailed vocabularies. However, they generally hold the Euclidean embedding space assumption, leading to a basic limitation in capturing hierarchical…

信息检索 · 计算机科学 2022-10-20 Yishi Xu , Dongsheng Wang , Bo Chen , Ruiying Lu , Zhibin Duan , Mingyuan Zhou
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