4 papers
Presence or Absence: Are Unknown Word Usages in Dictionaries?
Xianghe Ma, Dominik Schlechtweg, Wei Zhao
There has been a surge of interest in computational modeling of semantic change. The foci of previous works are on detecting and interpreting word senses gained over time; however,…
Graph-based Clustering for Detecting Semantic Change Across Time and Languages
Xianghe Ma, Michael Strube, Wei Zhao
Despite the predominance of contextualized embeddings in NLP, approaches to detect semantic change relying on these embeddings and clustering methods underperform simpler counterpa…
Normed Spaces for Graph Embedding
Diaaeldin Taha, Wei Zhao, J. Maxwell Riestenberg +1
Theoretical results from discrete geometry suggest that normed spaces can abstractly embed finite metric spaces with surprisingly low theoretical bounds on distortion in low dimens…
Modeling Graphs Beyond Hyperbolic: Graph Neural Networks in Symmetric Positive Definite Matrices
Wei Zhao, Federico Lopez, J. Maxwell Riestenberg +3
Recent research has shown that alignment between the structure of graph data and the geometry of an embedding space is crucial for learning high-quality representations of the data…