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Gaetano Rossiello

6 accepted papers

2023

KnowGL: Knowledge Generation and Linking from Text

AAAI 2023technical

We propose KnowGL, a tool that allows converting text into structured relational data represented as a set of ABox assertions compliant with the TBox of a given Knowledge Graph (KG), such as Wikidata. We address this problem as a sequence generation task by leveraging pre-trained sequence-to-sequen…

Cited by 30SourcePDFScholar
2023

Retrieval-Based Transformer for Table Augmentation

ACL 2023findings

Data preparation, also called data wrangling, is considered one of the most expensive and time-consuming steps when performing analytics or building machine learning models. Preparing data typically involves collecting and merging data from complex heterogeneous, and often large-scale data sources,…

2022

A Two-Stage Approach towards Generalization in Knowledge Base Question Answering

EMNLP 2022finding

Most existing approaches for Knowledge Base Question Answering (KBQA) focus on a specific underlying knowledge base either because of inherent assumptions in the approach, or because evaluating it on a different knowledge base requires non-trivial changes. However, many popular knowledge bases share…

Cited by 16SourcePDFScholar
2022

Re2G: Retrieve, Rerank, Generate

NAACL 2022long

As demonstrated by GPT-3 and T5, transformers grow in capability as parameter spaces become larger and larger. However, for tasks that require a large amount of knowledge, non-parametric memory allows models to grow dramatically with a sub-linear increase in computational cost and GPU memory require…

2021

Open Knowledge Graphs Canonicalization using Variational Autoencoders

EMNLP 2021main

Noun phrases and Relation phrases in open knowledge graphs are not canonicalized, leading to an explosion of redundant and ambiguous subject-relation-object triples. Existing approaches to solve this problem take a two-step approach. First, they generate embedding representations for both noun and r…

2021

Robust Retrieval Augmented Generation for Zero-shot Slot Filling

EMNLP 2021main

Automatically inducing high quality knowledge graphs from a given collection of documents still remains a challenging problem in AI. One way to make headway for this problem is through advancements in a related task known as slot filling. In this task, given an entity query in form of [Entity, Slot,…