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The Weisfeiler-Lehman Distance: Reinterpretation and Connection with GNNs

arXiv.org Artificial Intelligence

In this paper, we present a novel interpretation of the so-called Weisfeiler-Lehman (WL) distance, introduced by Chen et al. (2022), using concepts from stochastic processes. The WL distance aims at comparing graphs with node features, has the same discriminative power as the classic Weisfeiler-Lehman graph isomorphism test and has deep connections to the Gromov-Wasserstein distance. This new interpretation connects the WL distance to the literature on distances for stochastic processes, which also makes the interpretation of the distance more accessible and intuitive. We further explore the connections between the WL distance and certain Message Passing Neural Networks, and discuss the implications of the WL distance for understanding the Lipschitz property and the universal approximation results for these networks.


A.I. is helping doctors better combat genetic mutations

#artificialintelligence

Genetic mutations take place deep inside our DNA and can be challenging to identify, let alone treat. Scientists hope that a new deep learning approach will help doctors better combat these disease-causing mutations. Thanks to their data-crunching abilities, deep learning and A.I. have become increasingly important medical tools in recent years. These models are able to digest and make use of reams of medical data created by the human body by learning patterns from a test data-set and applying those rules to new, incoming data. Far from replacing a physician, these medical machines simply help physicians make connections quicker and more accurately.


FR-ANet: A Face Recognition Guided Facial Attribute Classification Network

AAAI Conferences

In this paper, we study the problem of facial attribute learning. In particular, we propose a Face Recognition guided facial Attribute classification Network, called FR-ANet. All the attributes share low-level features, while high-level features are specially learned for attribute groups. Further, to utilize the identity information, high-level features are merged to perform face identity recognition. The experimental results on CelebA and LFWA datasets demonstrate the promise of the FR-ANet.


Attributes for Improved Attributes: A Multi-Task Network Utilizing Implicit and Explicit Relationships for Facial Attribute Classification

AAAI Conferences

Attributes, or mid-level semantic features, have gained popularity in the past few years in domains ranging from activity recognition to face verification. Improving the accuracy of attribute classifiers is an important first step in any application which uses these attributes. In most works to date, attributes have been considered independent of each other. However, attributes can be strongly related, such as heavy makeup and wearing lipstick as well as male and goatee and many others. We propose a multi-task deep convolutional neural network (MCNN) with an auxiliary network at the top (AUX) which takes advantage of attribute relationships for improved classification. We call our final network MCNN-AUX. MCNN-AUX uses attribute relationships in three ways: by sharing the lowest layers for all attributes, by sharing the higher layers for spatially-related attributes, and by feeding the attribute scores from MCNN into the AUX network to find score-level relationships. Using MCNN-AUX rather than individual attribute classifiers, we are able to reduce the number of parameters in the network from 64 million to fewer than 16 million and reduce the training time by a factor of 16. We demonstrate the effectiveness of our method by producing results on two challenging publicly available datasets achieving state-of-the-art performance on many attributes.


Improving Event Causality Recognition with Multiple Background Knowledge Sources Using Multi-Column Convolutional Neural Networks

AAAI Conferences

We propose a method for recognizing such event causalities as "smoke cigarettes" → "die of lung cancer" using background knowledge taken from web texts as well as original sentences from which candidates for the causalities were extracted. We retrieve texts related to our event causality candidates from four billion web pages by three distinct methods, including a why-question answering system, and feed them to our multi-column convolutional neural networks. This allows us to identify the useful background knowledge scattered in web texts and effectively exploit the identified knowledge to recognize event causalities. We empirically show that the combination of our neural network architecture and background knowledge significantly improves average precision, while the previous state-of-the-art method gains just a small benefit from such background knowledge.