Search Results for author: Xiuwen Liu

Found 16 papers, 4 papers with code

Intriguing Differences Between Zero-Shot and Systematic Evaluations of Vision-Language Transformer Models

no code implementations13 Feb 2024 Shaeke Salman, Md Montasir Bin Shams, Xiuwen Liu, Lingjiong Zhu

Transformer-based models have dominated natural language processing and other areas in the last few years due to their superior (zero-shot) performance on benchmark datasets.

Language Modelling Zero-Shot Learning

Intriguing Equivalence Structures of the Embedding Space of Vision Transformers

no code implementations28 Jan 2024 Shaeke Salman, Md Montasir Bin Shams, Xiuwen Liu

Pre-trained large foundation models play a central role in the recent surge of artificial intelligence, resulting in fine-tuned models with remarkable abilities when measured on benchmark datasets, standard exams, and applications.

Inductive Link Prediction in Knowledge Graphs using Path-based Neural Networks

no code implementations16 Dec 2023 Canlin Zhang, Xiuwen Liu

Embedding-based models usually need fine-tuning on new entity embeddings, and hence are difficult to be directly applied to inductive link prediction tasks.

Entity Embeddings Inductive Link Prediction +1

Nonlinear Correct and Smooth for Semi-Supervised Learning

no code implementations9 Oct 2023 Yuanhang Shao, Xiuwen Liu

However, utilizing labels and features jointly in higher-order graphs has not been explored.

Improved Stock Price Movement Classification Using News Articles Based on Embeddings and Label Smoothing

no code implementations25 Jan 2023 Luis Villamil, Ryan Bausback, Shaeke Salman, Ting L. Liu, Conrad Horn, Xiuwen Liu

We further incorporate weight decay, batch normalization, dropout, and label smoothing to improve the generalization of the trained models.

Understanding the Spectral Bias of Coordinate Based MLPs Via Training Dynamics

no code implementations14 Jan 2023 John Lazzari, Xiuwen Liu

However, in low dimensional settings, a severe spectral bias occurs that obstructs convergence to high frequency components entirely.

Too Much in Common: Shifting of Embeddings in Transformer Language Models and its Implications

1 code implementation NAACL 2021 Daniel Bi{\'s}, Maksim Podkorytov, Xiuwen Liu

The success of language models based on the Transformer architecture appears to be inconsistent with observed anisotropic properties of representations learned by such models.

ProDCoNN-server: a web server for protein sequence prediction and design from a three-dimensional structure

1 code implementation bioRxiv 2021 Yuan Zhang, Arunima Mandal, Kevin Cui, Xiuwen Liu, Jinfeng Zhang

The prediction is very fast compared with other protein sequence prediction servers - it takes only a few minutes for a query protein on average.

Protein Design

Dense Embeddings Preserving the Semantic Relationships in WordNet

1 code implementation22 Apr 2020 Canlin Zhang, Xiuwen Liu

In order to create suitable labels for the training of sense spectra, we designed a new similarity measurement for noun and verb synsets in WordNet.

An Analysis on the Learning Rules of the Skip-Gram Model

1 code implementation18 Mar 2020 Canlin Zhang, Xiuwen Liu, Daniel Bis

To improve the generalization of the representations for natural language processing tasks, words are commonly represented using vectors, where distances among the vectors are related to the similarity of the words.

Towards Quantifying Intrinsic Generalization of Deep ReLU Networks

no code implementations18 Oct 2019 Shaeke Salman, Canlin Zhang, Xiuwen Liu, Washington Mio

We show that the generalization intervals of a ReLU network behave similarly along pairwise directions between samples of the same label in both real and random cases on the MNIST and CIFAR-10 datasets.

Consensus-based Interpretable Deep Neural Networks with Application to Mortality Prediction

no code implementations14 May 2019 Shaeke Salman, Seyedeh Neelufar Payrovnaziri, Xiuwen Liu, Pablo Rengifo-Moreno, Zhe He

In particular, while the proposed method maintains similar interpretability as conventional shallow models such as logistic regression, it improves the prediction accuracy significantly.

Feature Importance Mortality Prediction

Overfitting Mechanism and Avoidance in Deep Neural Networks

no code implementations19 Jan 2019 Shaeke Salman, Xiuwen Liu

Assisted by the availability of data and high performance computing, deep learning techniques have achieved breakthroughs and surpassed human performance empirically in difficult tasks, including object recognition, speech recognition, and natural language processing.

General Classification Object Recognition +2

Land Cover Classification from Multi-temporal, Multi-spectral Remotely Sensed Imagery using Patch-Based Recurrent Neural Networks

no code implementations2 Aug 2017 Atharva Sharma, Xiuwen Liu, Xiaojun Yang

Even with the increased number of satellite systems and sensors acquiring data with improved spectral, spatial, radiometric and temporal characteristics and the new data distribution policy, most existing land cover datasets were derived from a pixel-based single-date multi-spectral remotely sensed image with low accuracy.

General Classification Image Classification +1

Transformed Residual Quantization for Approximate Nearest Neighbor Search

no code implementations22 Dec 2015 Jiangbo Yuan, Xiuwen Liu

The success of product quantization (PQ) for fast nearest neighbor search depends on the exponentially reduced complexities of both storage and computation with respect to the codebook size.

Quantization

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