| Challenge: | Contextual string embeddings are a recent type of word embeddable that are useful for sequence labeling tasks. |
| Approach: | They propose a method that dynamically aggregates contextualized embeddings of each unique string . they then use a pooling operation to distill a ”global” word representation from all contextualized instances . |
| Outcome: | The proposed method improves state-of-the-art for named entity recognition tasks. |
Similar Papers
Contextual String Embeddings for Sequence Labeling (C18-1)
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| Challenge: | Recent advances in language modeling have made it viable to model language as distributions over characters. |
| Approach: | They propose to leverage internal states of a trained character language model to produce a new type of word embeddings. |
| Outcome: | The proposed embeddings outperform the state-of-the-art on four classic sequence labeling tasks. |
Contextualized Word Representations from Distant Supervision with and for NER (D19-55)
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| Challenge: | Existing word embeddings for named entity recognition are stacked with traditional ones for downstream tasks. |
| Approach: | They propose a special type of contextualized word representation that is learned from distant supervision annotations and dedicated to named entity recognition. |
| Outcome: | The proposed representation surpasses the existing representations and is complementary to existing embeddings. |
Building Static Embeddings from Contextual Ones: Is It Useful for Building Distributional Thesauri? (2022.lrec-1)
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| Challenge: | contextual language models are dominant in the field of Natural Language Processing, but they are not suitable for all uses. |
| Approach: | They propose a method for building word or type-level embeddings from contextual models . they evaluate a large set of English nouns from the perspective of extracting semantic similarity relations . |
| Outcome: | The proposed method can be used to build word or type embeddings from contextual models . it can be exploited for a wide set of English nouns, showing it can improve distributional thesauri . |
Obtaining Better Static Word Embeddings Using Contextual Embedding Models (2021.acl-long)
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| Challenge: | Recent contextual word embeddings have prohibitively high computational cost in many use-cases and are hard to interpret. |
| Approach: | They propose a distillation method which is an extension of CBOW-based training and improves computational efficiency of NLP applications. |
| Outcome: | The proposed method outperforms existing models and existing models in terms of quality and performance. |
Improved Word Sense Disambiguation Using Pre-Trained Contextualized Word Representations (D19-1)
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| Challenge: | Contextualized word representations are effective in downstream tasks such as question answering, named entity recognition, and sentiment analysis. |
| Approach: | They propose to integrate pre-trained contextualized word representations into a neural network that captures the whole sentence and the word representation in the sentence. |
| Outcome: | The proposed approach outperforms the state-of-the-art approach that makes use of non-contextualized word embeddings on multiple benchmark WSD datasets. |
Dynamic Contextualized Word Embeddings (2021.acl-long)
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| Challenge: | Static word embeddings that represent words by a single vector cannot capture word meaning in different linguistic and extralinguistic contexts. |
| Approach: | They propose dynamic contextualized word embeddings that represent words as a function of linguistic and extralinguistic contexts. |
| Outcome: | The proposed model models time and social space jointly, making them attractive for NLP tasks involving semantic variability. |
More Embeddings, Better Sequence Labelers? (2020.findings-emnlp)
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| Challenge: | Existing work suggests contextual embeddings improve sequence labeling accuracy . but, there is no definite conclusion on whether concatenating different kinds of embeddables is effective . |
| Approach: | They propose a family of contextual embeddings that improves sequence labeling accuracy . they conduct extensive experiments on 3 tasks over 18 datasets and 8 languages . |
| Outcome: | The proposed family of contextual embeddings improves the accuracy of sequence labelers over non-contextual embedders. |
Improving Entity Linking through Semantic Reinforced Entity Embeddings (2020.acl-main)
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| Challenge: | Existing entity embeddings are effective, but too distinctive for linking models to learn contextual commonality. |
| Approach: | They propose a method to inject fine-grained semantic information into entity embeddings . they use word embedds of type words to generate semantic embeddngs based on existing embeddables a sample of semantic information is injected into the embedded entities . |
| Outcome: | The proposed method reduces the distinctiveness of existing embeddings and improves performance. |
Sequence Tagging with Contextual and Non-Contextual Subword Representations: A Multilingual Evaluation (P19-1)
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| Challenge: | Pretrained contextual and non-contextual subword embeddings are available in over 250 languages, allowing massively multilingual NLP. |
| Approach: | They compare pretrained contextual and non-contextual subword embeddings with a contextual representation method, namely BERT, on multilingual named entity recognition and part-of-speech tagging. |
| Outcome: | The proposed method outperforms non-contextual embeddings on multilingual named entity recognition and part-of-speech tagging. |
Context is Gold to find the Gold Passage: Evaluating and Training Contextual Document Embeddings (2025.emnlp-main)
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| Challenge: | Modern document retrieval embedding methods typically encode passages (chunks) from documents independently, often overlooking contextual information from the rest of the document. |
| Approach: | They propose a benchmark to evaluate retrieval models' ability to leverage document-wide context. |
| Outcome: | The proposed method significantly improves retrieval quality on ConTEB without sacrificing base model performance. |