10 citations · 27 across the 15 of their papers we have counts for
8 papers · 1 filter
Named Entity and Relation Extraction with Multi-Modal Retrieval
Xinyu Wang, Jiong Cai, Yong Jiang +3
Multi-modal named entity recognition (NER) and relation extraction (RE) aim to leverage relevant image information to improve the performance of NER and RE. Most existing efforts l…
Quantum state tomography via non-convex Riemannian gradient descent
Ming-Chien Hsu, En-Jui Kuo, Wei-Hsuan Yu +2
The recovery of an unknown density matrix of large size requires huge computational resources. The recent Factored Gradient Descent (FGD) algorithm and its variants achieved state-…
Tensor Completion via Tensor Train Based Low-Rank Quotient Geometry under a Preconditioned Metric
Jian-Feng Cai, Wen Huang, Haifeng Wang +1
This paper investigates the low-rank tensor completion problem, which is about recovering a tensor from partially observed entries. We consider this problem in the tensor train for…
Approximation Theory of Wavelet Frame Based Image Restoration
Jian-Feng Cai, Jae Kyu Choi, Jianbin Yang
In this paper, we analyze the error estimate of a wavelet frame based image restoration method from degraded and incomplete measurements. We present the error between the underlyin…
Two Stage Continuous Domain Regularization for Piecewise Constant Image Restoration
Jian-Feng Cai, Jae Kyu Choi, Chenchuan Zhou
The finite-rate-of-innovation (FRI) framework which corresponds a signal/image to a structured low-rank matrix is emerging as an alternative to the traditional sparse regularizatio…
Approximation Theory of Total Variation Minimization for Data Completion
Jian-Feng Cai, Jae Kyu Choi, Ke Wei
Total variation (TV) minimization is one of the most important techniques in modern signal/image processing, and has wide range of applications. While there are numerous recent wor…
Nearly optimal bounds for the global geometric landscape of phase retrieval
Jian-Feng Cai, Meng Huang, Dong Li +1
The phase retrieval problem is concerned with recovering an unknown signal from a set of magnitude-only measurements $y_j=|\langle \bf{a}_j,\bf{x} \rangle…
DAMO-NLP at SemEval-2022 Task 11: A Knowledge-based System for Multilingual Named Entity Recognition
Xinyu Wang, Yongliang Shen, Jiong Cai +9
The MultiCoNER shared task aims at detecting semantically ambiguous and complex named entities in short and low-context settings for multiple languages. The lack of contexts makes…