Semantic Similarity Covariance Matrix Shrinkage.
Guillaume BecquinSaher EsmeirPublished in: EMNLP (Findings) (2023)
Keyphrases
- covariance matrix
- semantic similarity
- co occurrence
- covariance matrices
- similarity measure
- semantic similarity computation
- principal component analysis
- wordnet
- sample size
- semantic information
- semantic relatedness
- denoising
- semantically similar
- correlation matrix
- semantic similarity measure
- gaussian mixture
- objective function
- domain knowledge
- prior knowledge
- multivariate gaussian
- eigenvalues and eigenvectors
- symmetric matrix
- sentence similarity
- low level
- np hard
- visual similarity
- geometrical interpretation