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Black-Box Segmentation of Electronic Medical Records

Yuan, Hongyi, Yu, Sheng

arXiv.org Artificial Intelligence

Electronic medical records (EMRs) contain the majority of patients' healthcare details. It is an abundant resource for developing an automatic healthcare system. Most of the natural language processing (NLP) studies on EMR processing, such as concept extraction, are adversely affected by the inaccurate segmentation of EMR sections. At the same time, not enough attention has been given to the accurate sectioning of EMRs. The information that may occur in section structures is unvalued. This work focuses on the segmentation of EMRs and proposes a black-box segmentation method using a simple sentence embedding model and neural network, along with a proper training method. To achieve universal adaptivity, we train our model on the dataset with different section headings formats. We compare several advanced deep learning-based NLP methods, and our method achieves the best segmentation accuracies (above 98%) on various test data with a proper training corpus.


Certified ML Object Detection for Surveillance Missions

Belcaid, Mohammed, Bonnafous, Eric, Crison, Louis, Faure, Christophe, Jenn, Eric, Pagetti, Claire

arXiv.org Artificial Intelligence

Dynamic elements: A 50cm x 50cm x 20cm drone constituent is a software component (running on some arrives on the hand left side of the surveillance area piece of hardware) that takes as input images provided (with orientation = (10, 25, 3)) at a distance from a camera and generates as outputs data representing of 450m from the system, moving with a straight bounding boxes of objects detected in the image along with trajectory, in the direction of the system, at a constant their classification. The ML constituent, figure 3, contains speed of 1m/s. Sun is visible (on the left hand side of three main software components (the pre/post-processing the image).


Android Malware Category and Family Detection and Identification using Machine Learning

Fiky, Ahmed Hashem El, Shenawy, Ayman El, Madkour, Mohamed Ashraf

arXiv.org Artificial Intelligence

Android malware is one of the most dangerous threats on the internet, and it's been on the rise for several years. Despite significant efforts in detecting and classifying android malware from innocuous android applications, there is still a long way to go. As a result, there is a need to provide a basic understanding of the behavior displayed by the most common Android malware categories and families. Each Android malware family and category has a distinct objective. As a result, it has impacted every corporate area, including healthcare, banking, transportation, government, and e-commerce. In this paper, we presented two machine-learning approaches for Dynamic Analysis of Android Malware: one for detecting and identifying Android Malware Categories and the other for detecting and identifying Android Malware Families, which was accomplished by analyzing a massive malware dataset with 14 prominent malware categories and 180 prominent malware families of CCCS-CIC-AndMal2020 dataset on Dynamic Layers. Our approach achieves in Android Malware Category detection more than 96 % accurate and achieves in Android Malware Family detection more than 99% accurate. Our approach provides a method for high-accuracy Dynamic Analysis of Android Malware while also shortening the time required to analyze smartphone malware.


Deep PQR: Solving Inverse Reinforcement Learning using Anchor Actions

Geng, Sinong, Nassif, Houssam, Manzanares, Carlos A., Reppen, A. Max, Sircar, Ronnie

arXiv.org Machine Learning

We propose a reward function estimation framework for inverse reinforcement learning with deep energy-based policies. We name our method PQR, as it sequentially estimates the Policy, the $Q$-function, and the Reward function by deep learning. PQR does not assume that the reward solely depends on the state, instead it allows for a dependency on the choice of action. Moreover, PQR allows for stochastic state transitions. To accomplish this, we assume the existence of one anchor action whose reward is known, typically the action of doing nothing, yielding no reward. We present both estimators and algorithms for the PQR method. When the environment transition is known, we prove that the PQR reward estimator uniquely recovers the true reward. With unknown transitions, we bound the estimation error of PQR. Finally, the performance of PQR is demonstrated by synthetic and real-world datasets.


A Bayesian Dynamic Multilayered Block Network Model

Rodriguez-Deniz, Hector, Villani, Mattias, Voltes-Dorta, Augusto

arXiv.org Machine Learning

As network data become increasingly available, new opportunities arise to understand dynamic and multilayer network systems in many applied disciplines. Statistical modeling for multilayer networks is currently an active research area that aims to develop methods to carry out inference on such data. Recent contributions focus on latent space representation of the multilayer structure with underlying stochastic processes to account for network dynamics. Existing multilayer models are however typically limited to rather small networks. In this paper we introduce a dynamic multilayer block network model with a latent space represention for blocks rather than nodes. A block structure is natural for many real networks, such as social or transportation networks, where community structure naturally arises. A Gibbs sampler based on P\'olya-Gamma data augmentation is presented for the proposed model. Results from extensive simulations on synthetic data show that the inference algorithm scales well with the size of the network. We present a case study using real data from an airline system, a classic example of hub-and-spoke network.