Search Results for author: Fausto Giunchiglia

Found 61 papers, 12 papers with code

How Universal is Metonymy? Results from a Large-Scale Multilingual Analysis

no code implementations NAACL (SIGTYP) 2022 Temuulen Khishigsuren, Gábor Bella, Thomas Brochhagen, Daariimaa Marav, Fausto Giunchiglia, Khuyagbaatar Batsuren

Metonymy is regarded by most linguists as a universal cognitive phenomenon, especially since the emergence of the theory of conceptual mappings.

A Taxonomic Classification of WordNet Polysemy Types

no code implementations GWC 2016 Abed Alhakim Freihat, Fausto Giunchiglia, Biswanath Dutta

WordNet represents polysemous terms by capturing the different meanings of these terms at the lexical level, but without giving emphasis on the polysemy types such terms belong to.

Classification

IndoUKC: A Concept-Centered Indian Multilingual Lexical Resource

no code implementations LREC 2022 Nandu Chandran Nair, Rajendran S. Velayuthan, Yamini Chandrashekar, Gábor Bella, Fausto Giunchiglia

We introduce the IndoUKC, a new multilingual lexical database comprised of eighteen Indian languages, with a focus on formally capturing words and word meanings specific to Indian languages and cultures.

Diversity

ZiNet: Linking Chinese Characters Spanning Three Thousand Years

1 code implementation Findings (ACL) 2022 Yang Chi, Fausto Giunchiglia, Daqian Shi, Xiaolei Diao, Chuntao Li, Hao Xu

In addition, powered by the knowledge of radical systems in ZiNet, this paper introduces glyph similarity measurement between ancient Chinese characters, which could capture similar glyph pairs that are potentially related in origins or semantics.

Is this Enough?-Evaluation of Malayalam Wordnet

no code implementations EACL (DravidianLangTech) 2021 Nandu Chandran Nair, Maria-chiara Giangregorio, Fausto Giunchiglia

Quality of a product is the degree to which a product meets the customer’s expectation, which must also be valid for the case of lexical semantic resources.

valid

KAE: A Property-based Method for Knowledge Graph Alignment and Extension

no code implementations7 Jul 2024 Daqian Shi, Xiaoyue Li, Fausto Giunchiglia

A common solution to the semantic heterogeneity problem is to perform knowledge graph (KG) extension exploiting the information encoded in one or more candidate KGs, where the alignment between the reference KG and candidate KGs is considered the critical procedure.

Resolving Word Vagueness with Scenario-guided Adapter for Natural Language Inference

no code implementations21 May 2024 Yonghao Liu, Mengyu Li, Di Liang, Ximing Li, Fausto Giunchiglia, Lan Huang, Xiaoyue Feng, Renchu Guan

By incorporating relevant visual information and leveraging linguistic knowledge, our approach bridges the gap between language and vision, leading to improved understanding and inference capabilities in NLI tasks.

Natural Language Inference Sentence +1

Simple-Sampling and Hard-Mixup with Prototypes to Rebalance Contrastive Learning for Text Classification

no code implementations19 May 2024 Mengyu Li, Yonghao Liu, Fausto Giunchiglia, Xiaoyue Feng, Renchu Guan

Compared with the previous learning paradigm of pre-training and fine-tuning by cross entropy loss, the recently proposed supervised contrastive learning approach has received tremendous attention due to its powerful feature learning capability and robustness.

Contrastive Learning text-classification +1

Layers of technology in pluriversal design. Decolonising language technology with the LiveLanguage initiative

no code implementations2 May 2024 Gertraud Koch, Gábor Bella, Paula Helm, Fausto Giunchiglia

Language technology is a complex and emerging field that presents challenges for co-design interventions due to enfolding in assemblages of global scale and diverse sites and its knowledge intensity.

Diversity

Artificial Intelligence in Everyday Life 2.0: Educating University Students from Different Majors

no code implementations12 Apr 2024 Maria Kasinidou, Styliani Kleanthous, Matteo Busso, Marcelo Rodas, Jahna Otterbacher, Fausto Giunchiglia

With the surge in data-centric AI and its increasing capabilities, AI applications have become a part of our everyday lives.

Advancing the Arabic WordNet: Elevating Content Quality

no code implementations29 Mar 2024 Abed Alhakim Freihat, Hadi Khalilia, Gábor Bella, Fausto Giunchiglia

High-quality WordNets are crucial for achieving high-quality results in NLP applications that rely on such resources.

Diversity

From Knowledge Organization to Knowledge Representation and Back

no code implementations22 Jan 2024 Fausto Giunchiglia, Mayukh Bagchi, Subhashis Das

Knowledge Organization (KO) and Knowledge Representation (KR) have been the two mainstream methodologies of knowledge modelling in the Information Science community and the Artificial Intelligence community, respectively.

TACIT: A Target-Agnostic Feature Disentanglement Framework for Cross-Domain Text Classification

1 code implementation25 Dec 2023 Rui Song, Fausto Giunchiglia, Yingji Li, Mingjie Tian, Hao Xu

However, these methods rely on unlabeled samples provided by the target domains, which renders the model ineffective when the target domain is agnostic.

Cross-Domain Text Classification Disentanglement +2

From Knowledge Representation to Knowledge Organization and Back

no code implementations12 Dec 2023 Fausto Giunchiglia, Mayukh Bagchi

Knowledge Representation (KR) and facet-analytical Knowledge Organization (KO) have been the two most prominent methodologies of data and knowledge modelling in the Artificial Intelligence community and the Information Science community, respectively.

Towards a Gateway for Knowledge Graph Schemas Collection, Analysis, and Embedding

no code implementations21 Nov 2023 Mattia Fumagalli, Marco Boffo, Daqian Shi, Mayukh Bagchi, Fausto Giunchiglia

One of the significant barriers to the training of statistical models on knowledge graphs is the difficulty that scientists have in finding the best input data to address their prediction goal.

Knowledge Graphs

Lexical Diversity in Kinship Across Languages and Dialects

no code implementations24 Aug 2023 Hadi Khalilia, Gábor Bella, Abed Alhakim Freihat, Shandy Darma, Fausto Giunchiglia

The method is verified through two large-scale case studies on kinship terminology, a domain known to be diverse across languages and cultures: one case study deals with seven Arabic dialects, while the other one with three Indonesian languages.

Diversity

A semantics-driven methodology for high-quality image annotation

no code implementations26 Jul 2023 Fausto Giunchiglia, Mayukh Bagchi, Xiaolei Diao

Recent work in Machine Learning and Computer Vision has highlighted the presence of various types of systematic flaws inside ground truth object recognition benchmark datasets.

Object Recognition

Diversity and Language Technology: How Techno-Linguistic Bias Can Cause Epistemic Injustice

no code implementations25 Jul 2023 Paula Helm, Gábor Bella, Gertraud Koch, Fausto Giunchiglia

It is well known that AI-based language technology -- large language models, machine translation systems, multilingual dictionaries, and corpora -- is currently limited to 2 to 3 percent of the world's most widely spoken and/or financially and politically best supported languages.

Diversity Machine Translation

Towards Bridging the Digital Language Divide

no code implementations25 Jul 2023 Gábor Bella, Paula Helm, Gertraud Koch, Fausto Giunchiglia

It is a well-known fact that current AI-based language technology -- language models, machine translation systems, multilingual dictionaries and corpora -- focuses on the world's 2-3% most widely spoken languages.

Diversity Machine Translation

Automatic Counterfactual Augmentation for Robust Text Classification Based on Word-Group Search

no code implementations1 Jul 2023 Rui Song, Fausto Giunchiglia, Yingji Li, Hao Xu

Despite large-scale pre-trained language models have achieved striking results for text classificaion, recent work has raised concerns about the challenge of shortcut learning.

counterfactual Fairness +3

Egocentric Hierarchical Visual Semantics

no code implementations9 May 2023 Luca Erculiani, Andrea Bontempelli, Andrea Passerini, Fausto Giunchiglia

We achieve this goal by implementing an algorithm which, for any object, recursively recognizes its visual genus and its visual differentia.

Object Object Recognition

Incremental Image Labeling via Iterative Refinement

no code implementations18 Apr 2023 Fausto Giunchiglia, Xiaolei Diao, Mayukh Bagchi

Data quality is critical for multimedia tasks, while various types of systematic flaws are found in image benchmark datasets, as discussed in recent work.

Recognizing Entity Types via Properties

no code implementations16 Apr 2023 Daqian Shi, Fausto Giunchiglia

Thus, the entity type (etype) recognition task is proposed to deal with such heterogeneity, aiming to infer the class of entities and etypes by exploiting the information encoded in ontologies.

Towards Ranking Schemas by Focus

no code implementations27 Feb 2023 Mattia Fumagalli, Daqian Shi, Fausto Giunchiglia

The main goal of this paper is to evaluate knowledge base schemas, modeled as a set of entity types, each such type being associated with a set of properties, according to their focus.

Representing Interlingual Meaning in Lexical Databases

no code implementations22 Jan 2023 Fausto Giunchiglia, Gabor Bella, Nandu Chandran Nair, Yang Chi, Hao Xu

In today's multilingual lexical databases, the majority of the world's languages are under-represented.

Diversity

Aligning Visual and Lexical Semantics

no code implementations13 Dec 2022 Fausto Giunchiglia, Mayukh Bagchi, Xiaolei Diao

We discuss two kinds of semantics relevant to Computer Vision (CV) systems - Visual Semantics and Lexical Semantics.

Popularity Driven Data Integration

no code implementations28 Sep 2022 Fausto Giunchiglia, Simone Bocca, Mattia Fumagalli, Mayukh Bagchi, Alessio Zamboni

The intuition is that data will be treated differently based on their popularity: the more a certain set of data have been reused, the more they will be reused and the less they will be changed across reuses, thus decreasing the overall data preprocessing costs, while increasing backward compatibility and future sharing

Data Integration

LiveSchema: A Gateway Towards Learning on Knowledge Graph Schemas

no code implementations13 Jul 2022 Mattia Fumagalli, Marco Boffo, Daqian Shi, Mayukh Bagchi, Fausto Giunchiglia

In this paper, we describe the LiveSchema initiative, namely a gateway that offers a family of services to easily access, analyze, transform and exploit knowledge graph schemas, with the main goal of facilitating the reuse of these resources in machine learning use cases.

Representation Heterogeneity

no code implementations3 Jul 2022 Fausto Giunchiglia, Mayukh Bagchi

Semantic Heterogeneity is conventionally understood as the existence of variance in the representation of a target reality when modelled, by independent parties, in different databases, schemas and/ or data.

Diversity Unity

Concept-level Debugging of Part-Prototype Networks

1 code implementation31 May 2022 Andrea Bontempelli, Stefano Teso, Katya Tentori, Fausto Giunchiglia, Andrea Passerini

We propose ProtoPDebug, an effective concept-level debugger for ProtoPNets in which a human supervisor, guided by the model's explanations, supplies feedback in the form of what part-prototypes must be forgotten or kept, and the model is fine-tuned to align with this supervision.

Decision Making

UniMorph 4.0: Universal Morphology

no code implementations LREC 2022 Khuyagbaatar Batsuren, Omer Goldman, Salam Khalifa, Nizar Habash, Witold Kieraś, Gábor Bella, Brian Leonard, Garrett Nicolai, Kyle Gorman, Yustinus Ghanggo Ate, Maria Ryskina, Sabrina J. Mielke, Elena Budianskaya, Charbel El-Khaissi, Tiago Pimentel, Michael Gasser, William Lane, Mohit Raj, Matt Coler, Jaime Rafael Montoya Samame, Delio Siticonatzi Camaiteri, Benoît Sagot, Esaú Zumaeta Rojas, Didier López Francis, Arturo Oncevay, Juan López Bautista, Gema Celeste Silva Villegas, Lucas Torroba Hennigen, Adam Ek, David Guriel, Peter Dirix, Jean-Philippe Bernardy, Andrey Scherbakov, Aziyana Bayyr-ool, Antonios Anastasopoulos, Roberto Zariquiey, Karina Sheifer, Sofya Ganieva, Hilaria Cruz, Ritván Karahóǧa, Stella Markantonatou, George Pavlidis, Matvey Plugaryov, Elena Klyachko, Ali Salehi, Candy Angulo, Jatayu Baxi, Andrew Krizhanovsky, Natalia Krizhanovskaya, Elizabeth Salesky, Clara Vania, Sardana Ivanova, Jennifer White, Rowan Hall Maudslay, Josef Valvoda, Ran Zmigrod, Paula Czarnowska, Irene Nikkarinen, Aelita Salchak, Brijesh Bhatt, Christopher Straughn, Zoey Liu, Jonathan North Washington, Yuval Pinter, Duygu Ataman, Marcin Wolinski, Totok Suhardijanto, Anna Yablonskaya, Niklas Stoehr, Hossep Dolatian, Zahroh Nuriah, Shyam Ratan, Francis M. Tyers, Edoardo M. Ponti, Grant Aiton, Aryaman Arora, Richard J. Hatcher, Ritesh Kumar, Jeremiah Young, Daria Rodionova, Anastasia Yemelina, Taras Andrushko, Igor Marchenko, Polina Mashkovtseva, Alexandra Serova, Emily Prud'hommeaux, Maria Nepomniashchaya, Fausto Giunchiglia, Eleanor Chodroff, Mans Hulden, Miikka Silfverberg, Arya D. McCarthy, David Yarowsky, Ryan Cotterell, Reut Tsarfaty, Ekaterina Vylomova

The project comprises two major thrusts: a language-independent feature schema for rich morphological annotation and a type-level resource of annotated data in diverse languages realizing that schema.

Morphological Inflection

Language Diversity: Visible to Humans, Exploitable by Machines

no code implementations ACL 2022 Gábor Bella, Erdenebileg Byambadorj, Yamini Chandrashekar, Khuyagbaatar Batsuren, Danish Ashgar Cheema, Fausto Giunchiglia

The Universal Knowledge Core (UKC) is a large multilingual lexical database with a focus on language diversity and covering over a thousand languages.

Diversity

Visual Ground Truth Construction as Faceted Classification

no code implementations17 Feb 2022 Fausto Giunchiglia, Mayukh Bagchi, Xiaolei Diao

Recent work in Machine Learning and Computer Vision has provided evidence of systematic design flaws in the development of major object recognition benchmark datasets.

Classification Object Recognition

Object Recognition as Classification via Visual Properties

no code implementations20 Dec 2021 Fausto Giunchiglia, Mayukh Bagchi

We base our work on the teleosemantic modelling of concepts as abilities implementing the distinct functions of recognition and classification.

Classification Object +1

Toward a Unified Framework for Debugging Concept-based Models

no code implementations23 Sep 2021 Andrea Bontempelli, Fausto Giunchiglia, Andrea Passerini, Stefano Teso

In this paper, we tackle interactive debugging of "gray-box" concept-based models (CBMs).

Streaming and Learning the Personal Context

no code implementations18 Aug 2021 Fausto Giunchiglia, Marcelo Rodas Britez, Andrea Bontempelli, Xiaoyue Li

The representation of the personal context is complex and essential to improve the help machines can give to humans for making sense of the world, and the help humans can give to machines to improve their efficiency.

Interactive Label Cleaning with Example-based Explanations

1 code implementation NeurIPS 2021 Stefano Teso, Andrea Bontempelli, Fausto Giunchiglia, Andrea Passerini

We tackle sequential learning under label noise in applications where a human supervisor can be queried to relabel suspicious examples.

iTelos -- Purpose Driven Knowledge Graph Generation

no code implementations19 May 2021 Fausto Giunchiglia, Simone Bocca, Mattia Fumagalli, Mayukh Bagchi, Alessio Zamboni

When building a new application we are more and more confronted with the need of reusing and integrating pre-existing knowledge, e. g., ontologies, schemas, data of any kind, from multiple sources.

Graph Generation Knowledge Graphs

Classifying concepts via visual properties

no code implementations19 May 2021 Fausto Giunchiglia, Mayukh Bagchi

We assume that substances in the world are represented by two types of concepts, namely substance concepts and classification concepts, the former instrumental to (visual) perception, the latter to (language based) classification.

Classification

Stratified Data Integration

no code implementations19 May 2021 Fausto Giunchiglia, Alessio Zamboni, Mayukh Bagchi, Simone Bocca

We propose a novel approach to the problem of semantic heterogeneity where data are organized into a set of stratified and independent representation layers, namely: conceptual(where a set of unique alinguistic identifiers are connected inside a graph codifying their meaning), language(where sets of synonyms, possibly from multiple languages, annotate concepts), knowledge(in the form of a graph where nodes are entity types and links are properties), and data(in the form of a graph of entities populating the previous knowledge graph).

Data Integration Diversity

Towards Visual Semantics

no code implementations26 Apr 2021 Fausto Giunchiglia, Luca Erculiani, Andrea Passerini

In this paper we provide a theory and an algorithm for how to build substance concepts which are in a one-to-one correspondence with classifications concepts, thus paving the way to the seamless integration between natural language descriptions and visual perception.

General Classification

Towards Algorithmic Transparency: A Diversity Perspective

no code implementations12 Apr 2021 Fausto Giunchiglia, Jahna Otterbacher, Styliani Kleanthous, Khuyagbaatar Batsuren, Veronika Bogin, Tsvi Kuflik, Avital Shulner Tal

As the role of algorithmic systems and processes increases in society, so does the risk of bias, which can result in discrimination against individuals and social groups.

Diversity Fairness +1

Topological Regularization for Graph Neural Networks Augmentation

no code implementations3 Apr 2021 Rui Song, Fausto Giunchiglia, Ke Zhao, Hao Xu

The complexity and non-Euclidean structure of graph data hinder the development of data augmentation methods similar to those in computer vision.

Data Augmentation Graph Neural Network +1

Human-in-the-loop Handling of Knowledge Drift

1 code implementation27 Mar 2021 Andrea Bontempelli, Fausto Giunchiglia, Andrea Passerini, Stefano Teso

Motivated by this, we introduce TRCKD, a novel approach that combines automated drift detection and adaptation with an interactive stage in which the user is asked to disambiguate between different kinds of KD.

Exploring the Language of Data

no code implementations COLING 2020 G{\'a}bor Bella, Linda Gremes, Fausto Giunchiglia

We set out to uncover the unique grammatical properties of an important yet so far under-researched type of natural language text: that of short labels typically found within structured datasets.

named-entity-recognition Named Entity Recognition +2

Multi-Modal Subjective Context Modelling and Recognition

no code implementations19 Nov 2020 Qiang Shen, Stefano Teso, Wanyi Zhang, Hao Xu, Fausto Giunchiglia

Second, existing models typically assume that context is objective, whereas in most applications context is best viewed from the user's perspective.

Learning in the Wild with Incremental Skeptical Gaussian Processes

1 code implementation2 Nov 2020 Andrea Bontempelli, Stefano Teso, Fausto Giunchiglia, Andrea Passerini

The ability to learn from human supervision is fundamental for personal assistants and other interactive applications of AI.

Gaussian Processes

A Major Wordnet for a Minority Language: Scottish Gaelic

no code implementations LREC 2020 G{\'a}bor Bella, Fiona McNeill, Rody Gorman, Caoimhin O Donnaile, Kirsty MacDonald, Ch, Yamini rashekar, Abed Alhakim Freihat, Fausto Giunchiglia

We present a new wordnet resource for Scottish Gaelic, a Celtic minority language spoken by about 60, 000 speakers, most of whom live in Northwestern Scotland.

Continual egocentric object recognition

1 code implementation6 Dec 2019 Luca Erculiani, Fausto Giunchiglia, Andrea Passerini

We present a framework capable of tackilng the problem of continual object recognition in a setting which resembles that under whichhumans see and learn.

Active Learning Novelty Detection +2

CogNet: A Large-Scale Cognate Database

1 code implementation ACL 2019 Khuyagbaatar Batsuren, Gabor Bella, Fausto Giunchiglia

This paper introduces CogNet, a new, large-scale lexical database that provides cognates -words of common origin and meaning- across languages.

TrentoTeam at SemEval-2017 Task 3: An application of Grice Maxims in Ranking Community Question Answers

no code implementations SEMEVAL 2017 Mohammed R. H. Qwaider, Abed Alhakim Freihat, Fausto Giunchiglia

In this paper we present the Tren-toTeam system which participated to thetask 3 at SemEval-2017 (Nakov et al., 2017). We concentrated our work onapplying Grice Maxims(used in manystate-of-the-art Machine learning applica-tions(Vogel et al., 2013; Kheirabadiand Aghagolzadeh, 2012; Dale and Re-iter, 1995; Franke, 2011)) to ranking an-swers of a question by answers relevancy. Particularly, we created a ranker systembased on relevancy scores, assigned by 3main components: Named entity recogni-tion, similarity score, sentiment analysis. Our system obtained a comparable resultsto Machine learning systems.

BIG-bench Machine Learning Named Entity Recognition (NER) +1

Compositional Learning of Relation Path Embedding for Knowledge Base Completion

no code implementations22 Nov 2016 Xixun Lin, Yanchun Liang, Fausto Giunchiglia, Xiaoyue Feng, Renchu Guan

In this paper, we study the problem of how to better embed entities and relations of knowledge bases into different low-dimensional spaces by taking full advantage of the additional semantics of relation paths, and we propose a compositional learning model of relation path embedding (RPE).

Knowledge Base Completion Relation

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