Goto

Collaborating Authors

 South America


OkwuGb\'e: End-to-End Speech Recognition for Fon and Igbo

arXiv.org Artificial Intelligence

Language is inherent and compulsory for human communication. Whether expressed in a written or spoken way, it ensures understanding between people of the same and different regions. With the growing awareness and effort to include more low-resourced languages in NLP research, African languages have recently been a major subject of research in machine translation, and other text-based areas of NLP. However, there is still very little comparable research in speech recognition for African languages. Interestingly, some of the unique properties of African languages affecting NLP, like their diacritical and tonal complexities, have a major root in their speech, suggesting that careful speech interpretation could provide more intuition on how to deal with the linguistic complexities of African languages for text-based NLP. OkwuGb\'e is a step towards building speech recognition systems for African low-resourced languages. Using Fon and Igbo as our case study, we conduct a comprehensive linguistic analysis of each language and describe the creation of end-to-end, deep neural network-based speech recognition models for both languages. We present a state-of-art ASR model for Fon, as well as benchmark ASR model results for Igbo. Our linguistic analyses (for Fon and Igbo) provide valuable insights and guidance into the creation of speech recognition models for other African low-resourced languages, as well as guide future NLP research for Fon and Igbo. The Fon and Igbo models source code have been made publicly available.


Global Artificial Intelligence Microscopy Market Analysis

#artificialintelligence

ZEISS Germany, Nikon Instruments, Ariadne.ai, Mindpeak, Aiforia, Celly.AI Corporation, SVision LLC, Scopio Lab, AlexaPath, MicroscopeIT, Nanotronics, AiScope, Thermo Fisher, Ash Vision, Sigtuple, GoMicro, MantiScope, Cognex, Paige.AI, Motic, and Pleora Technologies among others are the players in the artificial intelligence microscopy market.Brooklyn, New York, March 10, 2021 (GLOBE NEWSWIRE) -- According to a new market research report published by Global Market Estimates, the Artificial Intelligence Microscopy Market will grow with a CAGR value of 7.2 percent from 2021 to 2026. The market for AI in microscopy will increase with the rising prevalence of infectious disease, cancer, and other disorders that require routine blood morphology analysis. Moreover, with the rising need for advanced live-cell imaging, cloud sharing, and efficient lab workflow, clubbed with the rising research activities in the field of drug testing and toxicology, the market will grow rapidly from 2020 to 2021. Browse 151 Market Data Tables and 111 Figures spread through 181 Pages and in-depth TOC on “Global Artificial Intelligence Microscopy Market - Forecast to 2026" https://www.globalmarketestimates.com/market-report/global-artificial-intelligence-microscopy-market-2824 Key Market Insights Optical or light microscopy is estimated to be the largest segment as per market share or market revenue generation from 2021 to 2026Cancer disease diagnosis and prevention is the major driving factor for this segment to grow rapidlyThe market for independent & private laboratories will be dominant from 2021 to 2026ZEISS Germany, Nikon Instruments, Ariadne.ai, Mindpeak, Aiforia, Celly.AI Corporation, SVision LLC, Scopio Lab, AlexaPath, MicroscopeIT, Nanotronics, AiScope, Thermo Fisher, Ash Vision, Sigtuple, GoMicro, MantiScope, Cognex, Paige.AI, Motic, and Pleora Technologies among others are the players in the artificial intelligence microscopy market Browse the Report @ https://www.globalmarketestimates.com/market-report/global-artificial-intelligence-microscopy-market-2824 Imaging Modalities Outlook (Revenue, USD Billion, 2019-2026) Optical MicroscopyElectron MicroscopyScanning Probe Microscopy Application Outlook (Revenue, USD Billion, 2019-2026) Clinical PathologyNeuron MorphologyCell BiologyPharmacology & ToxicologyOncologyOthers Product Type Outlook (Revenue, USD Billion, 2019-2026) AI-Enabled Cloud SoftwareAI-Enabled Microscopes End-User Outlook (Revenue, USD Billion, 2019-2026) Hospital LaboratoriesIndependent & Private LaboratoriesAcademic Research LabsPharmaceutical & Biotechnology LaboratoriesContract Research Organizations Regional Outlook (Revenue, USD Billion, 2019-2026) North America The U.S.CanadaMexico Europe GermanyUKFranceSpainItalyRest of Europe Asia Pacific ChinaIndiaJapanSouth KoreaAustraliaRest of APAC Central & South America BrazilArgentinaRest of CSA Middle East & Africa Saudi ArabiaUAERest of MEA Website: Global Market Estimates CONTACT: Contact: Yash Jain Email address: yash.jain@globalmarketestimates.com Phone Number: +16026667238


dictNN: A Dictionary-Enhanced CNN Approach for Classifying Hate Speech on Twitter

arXiv.org Artificial Intelligence

Hate speech on social media is a growing concern, and automated methods have so far been sub-par at reliably detecting it. A major challenge lies in the potentially evasive nature of hate speech due to the ambiguity and fast evolution of natural language. To tackle this, we introduce a vectorisation based on a crowd-sourced and continuously updated dictionary of hate words and propose fusing this approach with standard word embedding in order to improve the classification performance of a CNN model. To train and test our model we use a merge of two established datasets (110,748 tweets in total). By adding the dictionary-enhanced input, we are able to increase the CNN model's predictive power and increase the F1 macro score by seven percentage points.


A Study of Automatic Metrics for the Evaluation of Natural Language Explanations

arXiv.org Artificial Intelligence

As transparency becomes key for robotics and AI, it will be necessary to evaluate the methods through which transparency is provided, including automatically generated natural language (NL) explanations. Here, we explore parallels between the generation of such explanations and the much-studied field of evaluation of Natural Language Generation (NLG). Specifically, we investigate which of the NLG evaluation measures map well to explanations. We present the ExBAN corpus: a crowd-sourced corpus of NL explanations for Bayesian Networks. We run correlations comparing human subjective ratings with NLG automatic measures. We find that embedding-based automatic NLG evaluation methods, such as BERTScore and BLEURT, have a higher correlation with human ratings, compared to word-overlap metrics, such as BLEU and ROUGE. This work has implications for Explainable AI and transparent robotic and autonomous systems.


Gradient Policy on "CartPole" game and its' expansibility to F1Tenth Autonomous Vehicles

arXiv.org Artificial Intelligence

Generally, when learners are now studying the knowledge of the reinforcement learning algorithm at the beginning, the algorithm we first came up in learner's mind is the Q-learning algorithm, which is a classical reinforcement learning algorithm based on value iteration. In the state-to-action mapping process, an algorithm based on value iteration allows the system to explore in accordance with the policy guidelines, and update the state value at each step of the exploration. Then, in value-based iteration, we have several problems that cannot prevent that. For example, when the value of each state is updated, it is necessary to estimate the probability of all actions. Unlike the discrete action of walking a maze, some cases such as robot control and automatic driving since the massive state information brought by continuous actions makes the calculation process almost impossible by tabular computation. At this time, Policy Gradient, a reinforcement learning algorithm based on iteration policy, came into being. The policy gradient no longer calculates the reward, but directly calculates the probability of taking an action in a certain state, and directly selects the action through the probability.


Geometric Change Detection in Digital Twins using 3D Machine Learning

arXiv.org Artificial Intelligence

Digital twins are meant to bridge the gap between real-world physical systems and virtual representations. Both stand-alone and descriptive digital twins incorporate 3D geometric models, which are the physical representations of objects in the digital replica. Digital twin applications are required to rapidly update internal parameters with the evolution of their physical counterpart. Due to an essential need for having high-quality geometric models for accurate physical representations, the storage and bandwidth requirements for storing 3D model information can quickly exceed the available storage and bandwidth capacity. In this work, we demonstrate a novel approach to geometric change detection in the context of a digital twin. We address the issue through a combined solution of Dynamic Mode Decomposition (DMD) for motion detection, YOLOv5 for object detection, and 3D machine learning for pose estimation. DMD is applied for background subtraction, enabling detection of moving foreground objects in real-time. The video frames containing detected motion are extracted and used as input to the change detection network. The object detection algorithm YOLOv5 is applied to extract the bounding boxes of detected objects in the video frames. Furthermore, the rotational pose of each object is estimated in a 3D pose estimation network. A series of convolutional neural networks conducts feature extraction from images and 3D model shapes. Then, the network outputs the estimated Euler angles of the camera orientation with respect to the object in the input image. By only storing data associated with a detected change in pose, we minimize necessary storage and bandwidth requirements while still being able to recreate the 3D scene on demand.


Army of robots pushes the limits of astrophysics

#artificialintelligence

One thousand newly-minted microrobots created in EPFL labs will soon be deployed at two large-scale telescopes in Chile and the United States. These high-precision instruments, capable of positioning optical fibers to within a micron, will vastly increase the quantity of astrophysics data that can be gathered – and expand our understanding of the Universe.


Connectionism, Complexity, and Living Systems: a comparison of Artificial and Biological Neural Networks

arXiv.org Artificial Intelligence

OpenWorm Foundation, Boston, MA USA Abstract While Artificial Neural Networks (ANNs) have yielded impressive results in the realm of simulated intelligent behavior, it is important to remember that they are but sparse approximations of Biological Neural Networks (BNNs). We go beyond comparison of ANNs and BNNs to introduce principles from BNNs that might guide the further development of ANNs as embodied neural models. These principles include representational complexity, complex network structure/energetics, and robust function. We then consider these principles in ways that might be implemented in the future development of ANNs. In conclusion, we consider the utility of this comparison, particularly in terms of building more robust and dynamic ANNs. This even includes constructing a morphology and sensory apparatus to create an embodied ANN, which when complemented with the organizational and functional advantages of BNNs unlocks the adaptive potential of lifelike networks. Introduction How can Artificial Neural Networks (ANNs) emulate the "lifelike" nature of Biological Neural Networks (BNNs)?


A new interpretable unsupervised anomaly detection method based on residual explanation

arXiv.org Artificial Intelligence

Despite the superior performance in modeling complex patterns to address challenging problems, the black-box nature of Deep Learning (DL) methods impose limitations to their application in real-world critical domains. The lack of a smooth manner for enabling human reasoning about the black-box decisions hinder any preventive action to unexpected events, in which may lead to catastrophic consequences. To tackle the unclearness from black-box models, interpretability became a fundamental requirement in DL-based systems, leveraging trust and knowledge by providing ways to understand the model's behavior. Although a current hot topic, further advances are still needed to overcome the existing limitations of the current interpretability methods in unsupervised DL-based models for Anomaly Detection (AD). Autoencoders (AE) are the core of unsupervised DL-based for AD applications, achieving best-in-class performance. However, due to their hybrid aspect to obtain the results (by requiring additional calculations out of network), only agnostic interpretable methods can be applied to AE-based AD. These agnostic methods are computationally expensive to process a large number of parameters. In this paper we present the RXP (Residual eXPlainer), a new interpretability method to deal with the limitations for AE-based AD in large-scale systems. It stands out for its implementation simplicity, low computational cost and deterministic behavior, in which explanations are obtained through the deviation analysis of reconstructed input features. In an experiment using data from a real heavy-haul railway line, the proposed method achieved superior performance compared to SHAP, demonstrating its potential to support decision making in large scale critical systems.


Artificial intelligence meets real friendship: College students are bonding with robots

#artificialintelligence

The text message from Billy arrived on students' phones the week of final exams. "It took a lot of hard work, perseverance, and strength to get here, but you've finally made it to the other side -- the end of the semester! I wanted to take a minute and say that I am so proud of you ..." Three emoji hearts concluded the message. "Love you Billy thank you." Heart heart heart. "Thanks Billy, we did it together."