Instructional Material
Aspect-Based Sentiment Analysis in Education Domain
Hajrizi, Rinor, Nuçi, Krenare Pireva
Analysis of a large amount of data has always brought value to institutions and organizations. Lately, people's opinions expressed through text have become a very important aspect of this analysis. In response to this challenge, a natural language processing technique known as Aspect-Based Sentiment Analysis (ABSA) has emerged. Having the ability to extract the polarity for each aspect of opinions separately, ABSA has found itself useful in a wide range of domains. Education is one of the domains in which ABSA can be successfully utilized. Being able to understand and find out what students like and don't like most about a course, professor, or teaching methodology can be of great importance for the respective institutions. While this task represents a unique NLP challenge, many studies have proposed different approaches to tackle the problem. In this work, we present a comprehensive review of the existing work in ABSA with a focus in the education domain. A wide range of methodologies are discussed and conclusions are drawn.
A beginner's guide to the math that powers machine learning
How much math knowledge do you need for machine learning and deep learning? Some people say not much. Both are correct, depending on what you want to achieve. There are plenty of programming libraries, code snippets, and pretrained models that can get help you integrate machine learning into your applications without having a deep knowledge of the underlying math functions. At some point in your exploration and mastering of artificial intelligence, you'll need to come to terms with the lengthy and complicated equations that adorn AI whitepapers and machine learning textbooks.
Multi-Core Machine Learning in Python With Scikit-Learn
Many computationally expensive tasks for machine learning can be made parallel by splitting the work across multiple CPU cores, referred to as multi-core processing. Common machine learning tasks that can be made parallel include training models like ensembles of decision trees, evaluating models using resampling procedures like k-fold cross-validation, and tuning model hyperparameters, such as grid and random search. Using multiple cores for common machine learning tasks can dramatically decrease the execution time as a factor of the number of cores available on your system. A common laptop and desktop computer may have 2, 4, or 8 cores. Larger server systems may have 32, 64, or more cores available, allowing machine learning tasks that take hours to be completed in minutes. In this tutorial, you will discover how to configure scikit-learn for multi-core machine learning.
Artificial Neural Networks with NeuroLab and Python
Artificial Neural Networks with NeuroLab and Python You're going to learn hands-on artificial neural networks with neurolab, a lesser-known and traditional Python library for artificial intelligence. Description You're going to learn hands-on artificial neural networks with neurolab, a lesser-known and traditional Python library for artificial intelligence. This is a hands-on course and you will be working your way through with Python and Jupyter notebooks.
Neural Networks in Python from Scratch: Complete guide
Artificial neural networks are considered to be the most efficient Machine Learning techniques nowadays, with companies the likes of Google, IBM and Microsoft applying them in a myriad of ways. You've probably heard about self-driving cars or applications that create new songs, poems, images and even entire movie scripts! The interesting thing about this is that most of these were built using neural networks. Neural networks have been used for a while, but with the rise of Deep Learning, they came back stronger than ever and now are seen as the most advanced technology for data analysis. One of the biggest problems that I've seen in students that start learning about neural networks is the lack of easily understandable content.
Free Online Resources To Get A Comprehensive Understanding Of TinyML
Being one of the fastest developing deep learning aspects, TinyML has immense possibilities in areas where it is required to deploy a model that works on small and low power devices. Starting from imagery micro-satellite, tracking wildlife for conservation to detecting crop ailments, animal illnesses and predicting wildfires, TinyML comes with many possibilities. Not only it enables low-latency inference at edge devices consuming less power but also allows ML applications to run at edge intelligence. 'OK, Google' has been one of the renowned applications of TinyML, that works on everybody's smartphones. With such applications in hand, along with software frameworks like TensorFlow Lite for Microcontrollers, it has become extremely easy to deploy TinyML models.
Deep FPF: Gain function approximation in high-dimensional setting
Olmez, S. Yagiz, Taghvaei, Amirhossein, Mehta, Prashant G.
In this paper, we present a novel approach to approximate the gain function of the feedback particle filter (FPF). The exact gain function is the solution of a Poisson equation involving a probability-weighted Laplacian. The numerical problem is to approximate the exact gain function using only finitely many particles sampled from the probability distribution. Inspired by the recent success of the deep learning methods, we represent the gain function as a gradient of the output of a neural network. Thereupon considering a certain variational formulation of the Poisson equation, an optimization problem is posed for learning the weights of the neural network. A stochastic gradient algorithm is described for this purpose. The proposed approach has two significant properties/advantages: (i) The stochastic optimization algorithm allows one to process, in parallel, only a batch of samples (particles) ensuring good scaling properties with the number of particles; (ii) The remarkable representation power of neural networks means that the algorithm is potentially applicable and useful to solve high-dimensional problems. We numerically establish these two properties and provide extensive comparison to the existing approaches.
Differentiable Weighted Finite-State Transducers
Hannun, Awni, Pratap, Vineel, Kahn, Jacob, Hsu, Wei-Ning
E B. (2) The primary difference between ASG and CTC is the inclusion of a blank token, b, represented by the graph in figure 3a. Constructing CTC amounts to including the blank token graph when constructing the full token graph T. The intersection T Y then results in the CTC alignment graph (Figure 1b). Note, this version of CTC does not force transitions on b between repeats tokens. This requires remembering the previous state and hence is more involved (see Appendix A.1 for details). A benefit of constructing sequence-level criteria by composing operations on simpler graphs is the access to a large design space of loss functions with which we can encode useful priors. For example we could construct a "spike" CTC, a "duration-limited" CTC, or an "equally spaced" CTC by substituting the appropriate token graphs into equation 2 (see Appendix A.2 for details).
Can artificial intelligence transform higher education?
Readers are recommended to start with Zawacki-Richter et al.'s'Systematic review of research on artificial intelligence applications in higher education.' The authors reduced an initial trawl of 2656 articles published between 2007 and 2018 in peer reviewed journals down to 146 articles that met their selection criteria. The Zawacki-Richter at al. paper gives readers a good overview of the various areas where AI is being applied in higher education, as well as an indication of which areas researchers have tended to focus on. One of the areas identified by Zawacki-Richter et al. was the use of AI to predict final academic performance based on test results earlier in a course (profiling and prediction). The second paper in this issue by Akçapinar, Altun and Askar observed that 74% of the students who were unsuccessful at the end of term in an online computer science course in Turkey could be accurately predicted through the use of a specific algorithm (kNN) in as short as 3 weeks from the beginning of the course.
Building custom language models to supercharge speech-to-text performance for Amazon Transcribe
Amazon Transcribe is a fully-managed automatic speech recognition service (ASR) that makes it easy to add speech-to-text capabilities to voice-enabled applications. As our service grows, so does the diversity of our customer base, which now spans domains such as insurance, finance, law, real estate, media, hospitality, and more. Naturally, customers in different market segments have asked Amazon Transcribe for more customization options to further enhance transcription performance. We're excited to introduce Custom Language Models (CLM). The new feature allows you to submit a corpus of text data to train custom language models that target domain-specific use cases. Using CLM is easy because it capitalizes on existing data that you already possess (such as marketing assets, website content, and training manuals). In this post, we show you how to best use your available data to train a custom language model tailored for your speech-to-text use case. Although our walkthrough uses a transcription example from the video gaming industry, you can use CLM to enhance custom speech recognition for any domain of your choosing. This post assumes that you're already familiar with how to use Amazon Transcribe, and focuses on demonstrating how to use the new CLM feature.