Word Rotator’s Distance (2020.emnlp-main)

Copied to clipboard

Challenge: Existing approaches to measure textual similarity are inconsistent with the word alignment and are empirically inferior to the simple cosine similarity between general-purpose sentence vectors.
Approach: They propose to decouple word vectors into their norm and direction and then grow the norm and directions of word vector.
Outcome: The proposed methods outperform alignment-based approaches on several benchmarks and strong baselines on the semantic textual similarity task.

Similar Papers

Using Word Vectors to Improve Word Alignments for Low Resource Machine Translation (N18-2)

Copied to clipboard

Challenge: Using word similarities, we improve word alignments in low resource settings . word alignment is essential for statistical machine translation (MT)
Approach: They propose a method for improving word alignments using word similarities using word vectors trained on monolingual data.
Outcome: The proposed method improves word alignments in low-resource settings by improving alignments of infrequent tokens.
Improving word mover’s distance by leveraging self-attention matrix (2023.findings-emnlp)

Copied to clipboard

Challenge: Word mover's distance (WMD) computes semantic similarity via the optimal alignment between word embeddings, but does not consider word order, making it challenging to distinguish sentences with significant overlaps of similar words.
Approach: They propose to incorporate the sentence structure represented by BERT’s self-attention matrix (SAM) to improve WMD and its variants in paraphrase identification.
Outcome: The proposed method improves WMD and its variants in paraphrase identification with near-equivalent performance in semantic textual similarity.
Text Similarity Estimation Based on Word Embeddings and Matrix Norms for Targeted Marketing (N19-1)

Copied to clipboard

Challenge: Existing methods to estimate document similarity based on word embeddings are mediocre . a recent study compared word and sentence embedded documents to a similarity estimate using matrix norms.
Approach: They propose to combine word embeddings with matrix norms to obtain a similarity estimate.
Outcome: The proposed method produces superior results for most of the investigated matrix norms compared to the classical cosine measure and several other similarity estimates.
A Rank-Based Similarity Metric for Word Embeddings (P18-2)

Copied to clipboard

Challenge: Word Embeddings have become a standard for word representations, with vector cosine being the only similarity metric.
Approach: They propose to use rank-based similarity estimation metrics to measure word similarity . they find WE outperforms vector cosine in the recent outlier detection task .
Outcome: The proposed rank-based measure outperforms vector cosine in the recent outlier detection task.
Correlation Coefficients and Semantic Textual Similarity (N19-1)

Copied to clipboard

Challenge: Existing research into semantic textual similarity has focused on word embeddings . little attention has been devoted to similarity measures between word embeds - a new study shows .
Approach: They show that cosine similarity is essentially equivalent to the Pearson correlation coefficient for all common word vectors.
Outcome: The proposed model outperforms the existing model on word-level and sentence-level similarity benchmarks.
Understanding Cross-Lingual Alignment—A Survey (2024.findings-acl)

Copied to clipboard

Challenge: Cross-lingual alignment is the meaningful similarity of representations across languages in multilingual language models.
Approach: They propose a taxonomy of methods to improve cross-lingual alignment . they argue that an effective trade-off between language-neutral and language-specific information is key .
Outcome: The proposed methods can be applied to encoder models and encoder-decoder-only models . they show that language-neutral and language-specific information is key .
What just happened? Evaluating retrofitted distributional word vectors (N19-1)

Copied to clipboard

Challenge: Recent work has attempted to enhance vector space representations using information from structured semantic resources.
Approach: They propose a root-mean-square error evaluation metric to evaluate the utility of different lexical resources for retrofitting.
Outcome: The proposed method improves word similarity performance by using root-mean-square error (RMSE) and root-macro-error (RMME) metric.
Word Embedding-Based Automatic MT Evaluation Metric using Word Position Information (N19-1)

Copied to clipboard

Challenge: Existing evaluation metrics for machine translation are difficult to address word meaning because it is a surface-level metric.
Approach: They propose to use word embeddings, sentence-level tf-idf, and cosine similarity between two word embeds as features, weight, and the distance between two features as features.
Outcome: The proposed metric can evaluate machine translation based on word meaning . it achieves highest correlation with human judgment among several representative metrics.
On the Correlation of Word Embedding Evaluation Metrics (2020.lrec-1)

Copied to clipboard

Challenge: Word embeddings are geometrical representations of word paradigmatics and syntagmatics.
Approach: They propose to investigate evaluation metrics on various datasets to find correlations . they propose a fast solution to select the best word embeddings among many others .
Outcome: The proposed method could be used to select the best word embeddings among many others.
Unbalanced Optimal Transport for Unbalanced Word Alignment (2023.acl-long)

Copied to clipboard

Challenge: Figure 1 illustrates the challenges of monolingual word alignment.
Approach: They propose to use the family of optimal transport (OT) to achieve unbalanced word alignment that values alignment and null alignment on unsupervised datasets.
Outcome: The proposed methods are competitive against the state-of-the-art methods on challenging datasets with high null alignment frequencies.

What is GenGO?

GenGO is an NLP powered publication search system. It currenctly indexes 30k+ papers from ACL Anthology, and implements multi-aspect summarization, semantic search, and more!

Information

About
Limitations