| Challenge: | Neural entity typing models typically represent fine-grained entity types as vectors in a high-dimensional space, but such spaces are not well-suited to modeling complex interdependencies. |
| Approach: | They propose to use box embeddings to embed types into a high-dimensional hyperrectangle space and then use it to hypothesize a type representation for the mention. |
| Outcome: | The proposed model captures latent type hierarchies better than a vector-based model on several entity typing benchmarks. |
Similar Papers
Improving Fine-grained Entity Typing with Entity Linking (D19-1)
Copied to clipboard
| Challenge: | Existing methods for fine-grained entity typing require a large tag set and knowledge of the context. |
| Approach: | They propose a deep neural model that uses context and information from entity linking to improve fine-grained entity typing. |
| Outcome: | The proposed model achieves 5% absolute strict accuracy improvement over the state of the art on two datasets. |
Interpretable Entity Representations through Large-Scale Typing (2020.findings-emnlp)
Copied to clipboard
| Challenge: | In traditional methods for natural language processing, entities are embedded in dense vector spaces with pre-trained models. |
| Approach: | They propose an approach to creating entity representations that are human readable and achieve high performance on entity-related tasks out of the box. |
| Outcome: | The proposed representations are vectors whose values correspond to posterior probabilities over fine-grained entity types, indicating the confidence of a typing model’s decision that the entity belongs to the corresponding type. |
Ultra-Fine Entity Typing (P18-1)
Copied to clipboard
| Challenge: | Experimental results show that a model that can predict ultra-fine types can be crowd-sourced . head words indicate the type of the noun phrases they appear in, and are important for context-sensitive tasks . |
| Approach: | They propose a task where sentences are given with an entity mention . they introduce a new type of distant supervision: head words, which indicate the type of noun phrases they appear in. |
| Outcome: | The proposed model can predict ultra-fine types at varying granularity and performs well on a fine-grained entity typing benchmark. |
An Attentive Fine-Grained Entity Typing Model with Latent Type Representation (D19-1)
Copied to clipboard
| Challenge: | Existing fine-grained entity typing models are criticized for label independence assumption . |
| Approach: | They propose a fine-grained entity typing model with a new attention mechanism and a hybrid type classifier to exploit type inter-dependency with latent type representation. |
| Outcome: | The proposed model significantly advances the state-of-the-art on fine-grained entity typing. |
Attributed and Predictive Entity Embedding for Fine-Grained Entity Typing in Knowledge Bases (C18-1)
Copied to clipboard
| Challenge: | Existing methods for identifying semantic type of entities are incomplete even in large knowledge bases. |
| Approach: | They propose an attributed and predictive entity embedding method which can fully utilize various kinds of information comprehensively. |
| Outcome: | Experiments on two real DBpedia datasets show that the proposed method outperforms 8 state-of-the-art methods with 4.0% improvement in Mi-F1 and 5.2% improvement in Ma-F1. |
A Chinese Corpus for Fine-grained Entity Typing (2020.lrec-1)
Copied to clipboard
| Challenge: | Existing datasets for fine-grained entity typing are limited to English . a corpus of 4,800 mentions is manually labeled with free-form entity types . |
| Approach: | They propose a Chinese fine-grained entity typing task that uses crowdsourcing . they categorize each mention into 10 general types and use a large tag set to predict open set of types . |
| Outcome: | The proposed dataset contains 4,800 mentions manually labeled in Chinese . it also categorizes all the fine-grained types into 10 general types . |
Ultra-Fine Entity Typing with Weak Supervision from a Masked Language Model (2021.acl-long)
Copied to clipboard
| Challenge: | Existing methods for fine-grained entity typing use weak labels that are automatically generated. |
| Approach: | They propose to obtain training data by using a BERT Masked Language Model (MLM) given a mention in a sentence, they construct an input for the MLM so it predicts context dependent hypernyms of the mention, which can be used as type labels. |
| Outcome: | The proposed model improves performance by using type labels generated from a BERT Masked Language Model given a mention in a sentence. |
Embeddings of Label Components for Sequence Labeling: A Case Study of Fine-grained Named Entity Recognition (2020.acl-srw)
Copied to clipboard
| Challenge: | In general, the labels used in sequence labeling consist of different types of elements. |
| Approach: | They propose to integrate label component information as embeddings into sequence labeling models. |
| Outcome: | The proposed method improves on English and Japanese fine-grained named entity recognition on low-frequency labels. |
Efficient Entity Embedding Construction from Type Knowledge for BERT (2022.findings-aacl)
Copied to clipboard
| Challenge: | Existing work has shown advantages of incorporating knowledge graphs (KGs) into BERT for various NLP tasks. |
| Approach: | They propose to integrate knowledge graphs into BERT to train entity embeddings to include rich information of factual knowledge. |
| Outcome: | The proposed models perform very well when combined with context. |
Neural Fine-Grained Entity Type Classification with Hierarchy-Aware Loss (N18-1)
Copied to clipboard
| Challenge: | Existing methods for fine-grained type classification rely on distant supervision and are susceptible to noisy labels that can be out-of-context or overly-specific. |
| Approach: | They propose a neural network model that uses cross-entropy loss function to handle out-of-context labels and hierarchical loss normalization to cope with overly-specific ones. |
| Outcome: | The proposed model outperforms the state-of-the-art on established benchmarks for the task. |