Many machine learning models have been built to tackle information overload issues on Massive Open Online Courses (MOOC) platforms. These models rely on learning powerful representations of MOOC entities. However, they suffer from the problem of scarce expert label data. To overcome this problem, we propose to learn pre-trained representations of MOOC entities using abundant unlabeled data from the structure of MOOCs which can directly be applied to the downstream tasks. While existing pre-training methods have been successful in NLP areas as they learn powerful textual representation, their models do not leverage the richer information about MOOC entities. This richer information includes the graph relationship between the lectures, concepts, and courses along with the domain knowledge about the complexity of a concept. We develop MOOCRep, a novel method based on Transformer language model trained with two pre-training objectives : 1) graph-based objective to capture the powerful signal of entities and relations that exist in the graph, and 2) domain-oriented objective to effectively incorporate the complexity level of concepts. Our experiments reveal that MOOCRep's embeddings outperform state-of-the-art representation learning methods on two tasks important for education community, concept pre-requisite prediction and lecture recommendation.

In most practical applications, it's common to utilize multiple features from different views to represent one object. Among these works, multi-view subspace-based clustering has gained extensive attention from many researchers, which aims to provide clustering solutions to multi-view data. However, most existing methods fail to take full use of the locality geometric structure and similarity relationship among samples under the multi-view scenario. To solve these issues, we propose a novel multi-view learning method with locality relationship constraint to explore the problem of multi-view clustering, called Locality Relationship Constrained Multi-view Clustering Framework (LRC-MCF). LRC-MCF aims to explore the diversity, geometric, consensus and complementary information among different views, by capturing the locality relationship information and the common similarity relationships among multiple views. Moreover, LRC-MCF takes sufficient consideration to weights of different views in finding the common-view locality structure and straightforwardly produce the final clusters. To effectually reduce the redundancy of the learned representations, the low-rank constraint on the common similarity matrix is considered additionally. To solve the minimization problem of LRC-MCF, an Alternating Direction Minimization (ADM) method is provided to iteratively calculate all variables LRC-MCF. Extensive experimental results on seven benchmark multi-view datasets validate the effectiveness of the LRC-MCF method.

Extractive Reading Comprehension (ERC) has made tremendous advances enabled by the availability of large-scale high-quality ERC training data. Despite of such rapid progress and widespread application, the datasets in languages other than high-resource languages such as English remain scarce. To address this issue, we propose a Cross-Lingual Transposition ReThinking (XLTT) model by modelling existing high-quality extractive reading comprehension datasets in a multilingual environment. To be specific, we present multilingual adaptive attention (MAA) to combine intra-attention and inter-attention to learn more general generalizable semantic and lexical knowledge from each pair of language families. Furthermore, to make full use of existing datasets, we adopt a new training framework to train our model by calculating task-level similarities between each existing dataset and target dataset. The experimental results show that our XLTT model surpasses six baselines on two multilingual ERC benchmarks, especially more effective for low-resource languages with 3.9 and 4.1 average improvement in F1 and EM, respectively.

Walsh Middle School seventh grader Aariv Modi has always had a fascination for technology, especially his parent's Alexa device. "I loved the idea of just speaking to a device that it could allow you to play music, listen to the news, and it seemed futuristic to me," Aariv said. In April, Aariv was recognized as the Voice/AI Pioneer of the Year by Project Voice for his contributions to the conversational artificial intelligence industry. During the COVID-19 lockdown, he taught hundreds of kids how to make Alexa do things it isn't programmed to do through webinars, camps and posts on his blog that is available online. "In this generation, as kids are growing up, they are being exposed to technology and learning things in ways that we never thought was possible," said Bradley Metrock, CEO of Score Publishing, which organizes the Project Voice conference.

How to Learn Machine Learning – Tips and Resources to Learn ML the Practical Way Yacine Mahdid A lot of people want to learn machine learning these days. But the daunting bottom-up curriculum that most ML teachers propose is enough discourage a lot of newcomers. In this tutorial I flip the curriculum upside down and will outline what I think is the fastest and easiest way to get a solid grasp of ML. Table of Contents Step 6: Repeat steps 0 to 5 This is a looping learning plan because the 6th step is actually a GOTO to Step 0! As a disclaimer, this curriculum might strange to you. But I've battle tested it when I was teaching machine learning to undergraduates at McGill University. I tried many iteration of this curriculum, starting with the theoretically superior bottom-up approach. But from experience, this pragmatic top-down approach is what gives the best results. One common critique I get is that people not starting with the basics, like statistics or linear algebra, will have a poor understanding of machine learning and they will not know what they are doing when modeling. In theory, yes, this is true and this is why I started teaching ML with the bottom up approach. In practice, this has never been the case. What actually ended up happening was that because the students knew how to do the high level modeling, they were much more inclined to delve into the low level stuff on their own as they saw the direct benefit it would bring to their higher level skills. This context that they were able to set for themselves wouldn't have been there if they'd started from the bottom – and this is where I believe most teachers lose their students. All that being said, let's jump into the actual learning plan!

The ETL (extract, transform, load) process is the most popular method of collecting data from multiple sources and loading it into a centralized data warehouse. ETL is an essential component of data warehousing and analytics. Pentaho has phenomenal ETL, data analysis, metadata management and reporting capabilities. Pentaho is faster than other ETL tools (including Talend). Pentaho has a user-friendly GUI which is easier and takes less time to learn.

Data science courses contain math--no avoiding that! This course is designed to teach learners the basic math you will need in order to be successful in almost any data science math course and was created for learners who have basic math skills but may not have taken algebra or pre-calculus. Data Science Math Skills introduces the core math that data science is built upon, with no extra complexity, introducing unfamiliar ideas and math symbols one-at-a-time. Science is undergoing a data explosion, and astronomy is leading the way. Modern telescopes produce terabytes of data per observation, and the simulations required to model our observable Universe push supercomputers to their limits.

Artificial Intelligence is finally here and most of us are already actively using it in our day-to-day life (even without knowing it). To prepare our future generation in order to harness these technologies, people need to understand how they can use AI first of all! Only then can they use it to facilitate learning and solve real-world problems. The course is aimed at all those people, irrespective of their profession, who would like to learn how to make active use of AI. No prior knowledge is assumed, no expertise in any related area is required because we will start by introducing the very basic concepts.

Sentient Vision Systems is an artificial intelligence (AI) company that uses advanced software to enhance the performance of sensors and mission systems. ViDAR (for Visual Detection and Ranging) can detect a target in the imagery feed, discriminate between possible alternatives, and draw the operator's eye to what he or she is looking for. The power of AI can differentiate, from a distance of five nautical miles, between an arctic ice floe, a breaking wave and an upturned boat. AI and mastery of traditional computer vision technology underpins everything that Sentient Vision Systems has done over the past 17 years, since it started working on target detection solutions over land and maritime environments. Sentient's ViDAR systems use the AI within its deep learning and computer vision algorithms to detect tiny targets that are almost invisible in the imagery feed from an EO/IR sensor, especially in very challenging conditions, and filter out irrelevant information.

Digitally generated image, perfectly usable for all kinds of topics related to computers, ... [ ] electronics or technology in general. Buying off-the-shelf AI (Artificial Intelligence) software is a good first step for those companies that are new to the technology. There should be little need to make investments in technical infrastructure or to hire expensive data sciences. There will also be the benefit of getting a solution that has been tested by other customers. For the most part, there should be confidence in the accuracy levels as the algorithms will probably be implemented properly.