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Deep learning based techniques have been recently used with promising results for data integration problems. Some methods directly use pre-trained embeddings that were trained on a large corpus such as Wikipedia. However, they may not…

数据库 · 计算机科学 2020-09-04 Riccardo Cappuzzo , Paolo Papotti , Saravanan Thirumuruganathan

This Ontologies are widely used as a means for solving the information heterogeneity problems on the web because of their capability to provide explicit meaning to the information. They become an efficient tool for knowledge representation…

人工智能 · 计算机科学 2013-06-04 Nora Y. Ibrahim , Sahar A. Mokhtar , Hany M. Harb

Understanding what knowledge is implicitly encoded in deep learning models is essential for improving the interpretability of AI systems. This paper examines common methods to explain the knowledge encoded in word embeddings, which are core…

计算与语言 · 计算机科学 2025-08-20 Hanna Herasimchyk , Alhassan Abdelhalim , Sören Laue , Michaela Regneri

We present an unsupervised approach for discovering semantic representations of mathematical equations. Equations are challenging to analyze because each is unique, or nearly unique. Our method, which we call equation embeddings, finds good…

机器学习 · 统计学 2018-03-28 Kriste Krstovski , David M. Blei

The quest for acquiring a formal representation of the knowledge of a domain of interest has attracted researchers with various backgrounds into a diverse field called ontology learning. We highlight classical machine learning and data…

人工智能 · 计算机科学 2021-04-06 Ana Ozaki

Though language model text embeddings have revolutionized NLP research, their ability to capture high-level semantic information, such as relations between entities in text, is limited. In this paper, we propose a novel contrastive learning…

计算与语言 · 计算机科学 2023-10-10 Christos Theodoropoulos , James Henderson , Andrei C. Coman , Marie-Francine Moens

Ontologies often lack explicit disjointness declarations between classes, despite their usefulness for sophisticated reasoning and consistency checking in Knowledge Graphs. In this study, we explore the potential of Large Language Models…

人工智能 · 计算机科学 2024-12-03 Elias Crum , Antonio De Santis , Manon Ovide , Jiaxin Pan , Alessia Pisu , Nicolas Lazzari , Sebastian Rudolph

This paper presents a joint model for performing unsupervised morphological analysis on words, and learning a character-level composition function from morphemes to word embeddings. Our model splits individual words into segments, and…

计算与语言 · 计算机科学 2016-06-09 Kris Cao , Marek Rei

Geometric relational embeddings map relational data as geometric objects that combine vector information suitable for machine learning and structured/relational information for structured/relational reasoning, typically in low dimensions.…

人工智能 · 计算机科学 2023-04-25 Bo Xiong , Mojtaba Nayyeri , Ming Jin , Yunjie He , Michael Cochez , Shirui Pan , Steffen Staab

Deep and shallow embeddings of non-classical logics in classical higher-order logic have been explored, implemented, and used in various reasoning tools in recent years. This paper presents a method for the simultaneous deployment of deep…

计算机科学中的逻辑 · 计算机科学 2025-06-03 Christoph Benzmüller

Neural methods for embedding entities are typically extrinsically evaluated on downstream tasks and, more recently, intrinsically using probing tasks. Downstream task-based comparisons are often difficult to interpret due to differences in…

计算与语言 · 计算机科学 2020-11-19 Andrew Runge , Eduard Hovy

This paper explores entity embedding effectiveness in ad-hoc entity retrieval, which introduces distributed representation of entities into entity retrieval. The knowledge graph contains lots of knowledge and models entity semantic…

信息检索 · 计算机科学 2019-08-29 Zhenghao Liu , Chenyan Xiong , Maosong Sun , Zhiyuan Liu

Modeling an ontology is a hard and time-consuming task. Although methodologies are useful for ontologists to create good ontologies, they do not help with the task of evaluating the quality of the ontology to be reused. For these reasons,…

人工智能 · 计算机科学 2017-09-05 Judson Bandeira , Ig Ibert Bittencourt , Patricia Espinheira , Seiji Isotani

Large Language Models (LLMs) are increasingly being integrated into various components of Ontology Matching pipelines. This paper investigates the capability of LLMs to perform ontology matching directly on ontology modules and generate the…

计算与语言 · 计算机科学 2025-12-01 Guilherme Sousa , Rinaldo Lima , Cassia Trojahn

We study the problem of fitting ontologies and constraints to positive and negative examples that take the form of a finite relational structure. As ontology and constraint languages, we consider the description logics $\mathcal{E\mkern-2mu…

人工智能 · 计算机科学 2025-08-20 Simon Hosemann , Jean Christoph Jung , Carsten Lutz , Sebastian Rudolph

Text embeddings have become an essential part of a variety of language applications. However, methods for interpreting, exploring and reversing embedding spaces are limited, reducing transparency and precluding potentially valuable…

计算与语言 · 计算机科学 2026-01-27 Brian Ondov , Chia-Hsuan Chang , Yujia Zhou , Mauro Giuffrè , Hua Xu

Embeddings from contemporary natural language processing (NLP) models are commonly used as numerical representations for words or sentences. However, odor descriptor words, like "leather" or "fruity", vary significantly between their…

机器学习 · 计算机科学 2022-05-10 Laura Sisson

Deep learning models continuously break new records across different NLP tasks. At the same time, their success exposes weaknesses of model evaluation. Here, we compile several key pitfalls of evaluation of sentence embeddings, a currently…

计算与语言 · 计算机科学 2019-06-05 Steffen Eger , Andreas Rücklé , Iryna Gurevych

Fine-grained entity typing (FET) is the task of identifying specific entity types at a fine-grained level for entity mentions based on their contextual information. Conventional methods for FET require extensive human annotation, which is…

计算与语言 · 计算机科学 2023-10-13 Siru Ouyang , Jiaxin Huang , Pranav Pillai , Yunyi Zhang , Yu Zhang , Jiawei Han

In this position paper we present a new approach for discovering some special classes of assertional knowledge in the text by using large RDF repositories, resulting in the extraction of new non-taxonomic ontological relations. Also we use…

信息检索 · 计算机科学 2013-08-06 Meisam Booshehri , Abbas Malekpour , Peter Luksch , Kamran Zamanifar , Shahdad Shariatmadari