activity
20172023
most citedLearning Rare Word Representations using Semantic Bridging

4 citations · 6 across the 8 of their papers we have counts for

collaborators

9 papers

cs.LG2023

Autoencoding Conditional Neural Processes for Representation Learning

Victor Prokhorov, Ivan Titov, N. Siddharth

Conditional neural processes (CNPs) are a flexible and efficient family of models that learn to learn a stochastic process from data. They have seen particular application in conte…

cs.CL2023

StrAE: Autoencoding for Pre-Trained Embeddings using Explicit Structure

Mattia Opper, Victor Prokhorov, N. Siddharth

This work presents StrAE: a Structured Autoencoder framework that through strict adherence to explicit structure, and use of a novel contrastive objective over tree-structured repr…

cs.CL2021★ 1 cited

Unsupervised Representation Disentanglement of Text: An Evaluation on Synthetic Datasets

Lan Zhang, Victor Prokhorov, Ehsan Shareghi

To highlight the challenges of achieving representation disentanglement for text domain in an unsupervised setting, in this paper we select a representative set of successfully app…

cs.CL2020

Learning Sparse Sentence Encoding without Supervision: An Exploration of Sparsity in Variational Autoencoders

Victor Prokhorov, Yingzhen Li, Ehsan Shareghi +1

It has been long known that sparsity is an effective inductive bias for learning efficient representation of data in vectors with fixed dimensionality, and it has been explored in…

cs.CL2019★ 1 cited

On the Importance of the Kullback-Leibler Divergence Term in Variational Autoencoders for Text Generation

Victor Prokhorov, Ehsan Shareghi, Yingzhen Li +2

Variational Autoencoders (VAEs) are known to suffer from learning uninformative latent representation of the input due to issues such as approximated posterior collapse, or entangl…

cs.CL2019

Generating Knowledge Graph Paths from Textual Definitions using Sequence-to-Sequence Models

Victor Prokhorov, Mohammad Taher Pilehvar, Nigel Collier

We present a novel method for mapping unrestricted text to knowledge graph entities by framing the task as a sequence-to-sequence problem. Specifically, given the encoded state of…

cs.CL2018

Unseen Word Representation by Aligning Heterogeneous Lexical Semantic Spaces

Victor Prokhorov, Mohammad Taher Pilehvar, Dimitri Kartsaklis +2

Word embedding techniques heavily rely on the abundance of training data for individual words. Given the Zipfian distribution of words in natural language texts, a large number of…

cs.CL2018

Card-660: Cambridge Rare Word Dataset - a Reliable Benchmark for Infrequent Word Representation Models

Mohammad Taher Pilehvar, Dimitri Kartsaklis, Victor Prokhorov +1

Rare word representation has recently enjoyed a surge of interest, owing to the crucial role that effective handling of infrequent words can play in accurate semantic understanding…

cs.CL2017★ 4 cited

Learning Rare Word Representations using Semantic Bridging

Victor Prokhorov, Mohammad Taher Pilehvar, Dimitri Kartsaklis +2

We propose a methodology that adapts graph embedding techniques (DeepWalk (Perozzi et al., 2014) and node2vec (Grover and Leskovec, 2016)) as well as cross-lingual vector space map…