Mar 10, 2024 · March 10, 2024. Unsupervised Learning. In this era of machine learning and data analysis, the quest to understand complex relationships within high-dimensional data like images or videos is not simple and often requires techniques beyond simple ones. The patterns are complex, twisted and intertwined, defying the simplicity of straight lines. The specialization requires Graduate Algorithms, Machine Learning, and 3 of the electives listed under the Machine Learning concentration. That makes 5. The remaining 5 can be any of the courses offered by the program, and they can be taken before after, during, and/or between the courses required by the concentration (no order is enforced). Fortunately, thanks to Georgia Tech’s efforts to expand access to a computer science education, this was totally possible. For around $1,000 per semester, we could take online classes part-time through Georgia Tech’s OMSCS program and graduate with master’s degree specializing in machine learning. What’s the catch? Well…. There …Michaels is an art and crafts shop with a presence in North America. The company has been incredibly successful and its brand has gained recognition as a leader in the space. Micha...ML is a subset of AI that focuses on using statistical / linear algebra techniques in order to get a machine to learning. Big Data, big modelling problems. A.I. it's an umbrella for many things. It's the study of intelligent agents. In essence, how could you design something to succeed at a given task with frequency.Machine learning has become an indispensable tool in various industries, from healthcare to finance, and from e-commerce to self-driving cars. However, the success of machine learn... Pick three (3) courses from: CS 6035 Introduction to Information Security. CS 6200 Graduate Introduction to Operating Systems . CS 6220 Big Data Systems and Analytics. CS 6235 Real Time Systems. CS 6238 Secure Computer Systems. CS 6260 Applied Cryptography. CS 6262 Network Security. Reinforcement Learning. Introduction Reinforcement Learning (RL) is a powerful subset of machine learning where agents interact with an environment to hone their decision-making skills. At the core of RL lie Markov Decision Processes (MDPs), providing a mathematical structure to define states, actions, rewards, and the dynamics of how an ... Grade Structure. Four assignments (15%, 10%, 10%, 15% of the final grade), and 2 exams (each 25% of the final grade). There are also 2 optional problem sets that are said will not be graded and just to give you a boost if your final score fails between grades. Assignments. I found many people feel the grading of the assignments was very random. 8 Dec 2023 ... Georgia Tech OMSCS Artificial Intelligence Review | CS 6601. Coolster ... Georgia Tech OMSCS Machine Learning Review | CS 7641. Coolster Codes ...python machine-learning sklearn ml hacktoberfest omscs georgia-tech cs7641 Resources. Readme License. MIT license Activity. Stars. 153 stars Watchers. 11 watching Forks. 124 forks Report repository Releases No releases published. Packages 0. No packages published . Contributors 3Buying a used sewing machine can be a money-saver compared to buying a new one, but consider making sure it doesn’t need a lot of repair work before you buy. Repair costs can eat u...Lastly, I’ve heard good reviews about the course from others who have taken it. On OMSCentral, it has an average rating of 4.3 / 5 and an average difficulty of 2.5 / 5. The average number of hours a week is about 10 - 11. This makes it great for pairing with another course (IHI, which will be covered in another post).I am open sourcing the boiler plate code necessary for Assignment 4 so we can focus on the analysis instead. - juanjose49/omscs-cs7641-machine-learning-assignment-4Admission Criteria. Preferred qualifications for admitted OMSCS students are an undergraduate degree in computer science or related field (typically mathematics, computer engineering or electrical engineering) with a cumulative GPA of 3.0 or higher. Applicants who do not meet these criteria will be evaluated on a case-by-case basis. For all ...We would like to show you a description here but the site won’t allow us.Why I Picked OMSA over OMSCS at Georgia Tech. I picked OMSA over OMSCS (Online Masters of Computer Science) because… I made the wrong choice. While everything worked out, the analytics degree lacked computing fundamentals, which are the core of most higher-end data science and machine learning jobs.The most popular, OG and (even after price increase) crazy cheap degree programme we all know. Be prepared to be trolled if you don't even know how to read the rules, read the orientation document, or do a simple Google search. Check us out in Slack @ omscs-study.slack.com. Check class vacancies @ www.omscs.rocks.This is a 3-course Machine Learning Series, taught as a dialogue between Professors Charles Isbell (Georgia Tech) and Michael Littman (Brown University). Supervised Learning is a machine learning task that makes it possible for your phone to recognize your voice, your email to filter spam, and for computers to learn a number of fascinating things.That's not in the list of courses available to OMSCS students . Unless it's a new course offering, that course is not in OMSCS curriculum. You've taken courses already so you know how this works, not all courses in the course list are available in OMSCS. I looked up the course once and saw the notes, seems super heavy on math/theory (obviously).Machine learning algorithms are at the heart of predictive analytics. These algorithms enable computers to learn from data and make accurate predictions or decisions without being ...Introduction Welcome! This blog post will serve as your introduction to Machine Learning in Python. This guide is designed to set you up to use many of the foundational tools and resources you will use during your time in OMSCS 7641. This post is intended to be a practical crash course introduction to setting up […]OMSCS Machine Learning Blog Series; Summary. Discover the fascinating journey of clustering algorithms from their inception in the early 20th century to the cutting-edge advancements of the 2020s. This article unveils the evolution of these algorithms, beginning with their foundational use in anthropology and psychology, through to the ... I'm deciding between these two. My current plan is Computing Systems. I'm a SWE with an interest in ML, but I'm not sure I need to do the ML track to necessarily to reap its benefits. With Computing Systems I can still take 4 of the most appealing ML classes.I can see a lot of overlap, and this is not in the order I'd take them in. Starting on page 55, you will see a listing of the ACM’s Body of Knowledge for a CS curriculum. Use these pages to guide your pre-application preparation. Find 2-4 upper-level (i.e., junior, senior, or graduate level) courses of interest that cover some of these areas and demonstrate the ability to earn a B or better in those courses.The specialization requires Graduate Algorithms, Machine Learning, and 3 of the electives listed under the Machine Learning concentration. That makes 5. The remaining 5 can be any of the courses offered by the program, and they can be taken before after, during, and/or between the courses required by the concentration (no order is enforced).OMSCS Retrospective. At the end of 2021, I finished earning my master’s degree in computer science through Georgia Tech’s OMSCS program. This post is a look back on that experience. Previously, I wrote about my motivation for enrolling in OMSCS. In terms of time, it took me 4.5 years to complete the program. I was working full time …If I can pick your brain a little more, would you say that the computing systems courses are a nice to have but not a core competency for a machine learning engineer, and are the ML courses in the OMSCS program sufficient enough to make the right ML models/algorithms for business/product requirements? We consider statistical approaches like linear regression, Q-Learning, KNN and regression trees and how to apply them to actual stock trading situations. This course is composed of three mini-courses: Mini-course 1: Manipulating Financial Data in Python. Mini-course 2: Computational Investing. Mini-course 3: Machine Learning Algorithms for Trading. Machine Learning Overhaul. CS 7641 ML. I'm interested in taking Machine Learning as it will definitely be a rewarding, challenging class with plenty of learning. But the reviews on this course are really putting me off! The professors apparently banter a lot with each other during the lecture, the lectures don't present anything but vague high ... If not, you may consider something else. HCI is a good class to start with. DB wouldn't be a bad choice either. Don't get discouraged if you can't get the classes you want in the order you want. It's all gonna work out just fine. (My course history: FA21, AI, HCI; SP22: ML, ML4t; SU22 EdTech, DB) 2. GeorgePBurdell1927. How hard is Machine Learning (ML) Really? : r/OMSCS. r/OMSCS. • 6 yr. ago. omscs_learner. How hard is Machine Learning (ML) Really? Courses. From the course pre-req advice in the sidebar: Machine Learning - Although the course is available on free Udacity, I'd actually recommend taking Thrun's "Intro to Machine Learning" on Udacity …Machine Learning Overhaul. CS 7641 ML. I'm interested in taking Machine Learning as it will definitely be a rewarding, challenging class with plenty of learning. But the reviews on this course are really putting me off! The professors apparently banter a lot with each other during the lecture, the lectures don't present anything but vague high ...Jupyter Notebook 100.0%. OMSCS Machine Learning Course. Contribute to okazkayasi/CS7641 development by creating an account on GitHub. If not, you may consider something else. HCI is a good class to start with. DB wouldn't be a bad choice either. Don't get discouraged if you can't get the classes you want in the order you want. It's all gonna work out just fine. (My course history: FA21, AI, HCI; SP22: ML, ML4t; SU22 EdTech, DB) 2. GeorgePBurdell1927. Machine learning algorithms are at the heart of many data-driven solutions. They enable computers to learn from data and make predictions or decisions without being explicitly prog...CS 7642 - Reinforcement Learning Review. Courses. My Spring 2023 review - a version of this is on OMS Central. Reinforcement Learning (RL) is a fascinating class, but I have mixed feelings now that the course has concluded. On the plus side, RL feels like it just might be the next "big thing." The field is a fascinating fusion of classical ...It's not that hard. Get to use out of the box code for the assignments and its generously curved. if you're interested in the subject matter it's a LOT easier to get through than courses like DVA. Take Andrew Ng's Coursera ML before it and you'll be able to breeze through. 8. SomeGuyInSanJoseCa.GATech OMSCS Machine Learning Course -- notes and assignments 16 stars 19 forks Branches Tags Activity. Star Notifications Code; Issues 7; Pull requests 1; Actions; Projects 1; Wiki; Security; Insights nehalecky/cs-7641-Machine-Learning. This commit does not belong to any branch on this repository, and may belong to a fork outside of the ...OMSCS will probably pay more because it has been around longer and is considered more versatile and possibly more rigorous. If you want to study machine learning or AI, OMSCS offers more content. If you want to do more statistical type work as well as data science, OMSA offers plenty of courses. Take a look at what both programs offer and then ...The machine learning structure was broken down into Supervised Learning,Reinforcement Learning and you are introduced to other topics like Unsupervised Learning, Neural Nets, Simulation, Optimization, and lots of Finance/Stock Market concepts. Assignment 1 (martingale) was an intro to Simulation10 Mar 2024 ... No Straight Lines Here: The Wacky World of Non-Linear Manifold Learning ... In this era of machine learning and data analysis, the quest to ...Transfer learning is a machine learning technique that utilizes a model already trained for one task on another separate, related task. In this article, we will take a deep dive into what this means, why transfer learning has become increasingly popular to boost neural network performance, and how you can use transfer learning on your […]OMSCS Machine Learning Blog Series; Summary. Activation functions are crucial in neural networks, introducing non-linearity and enabling the modeling of complex patterns across varied tasks. This guide delves into the evolution, characteristics, and applications of state-of-the-art activation functions, illustrating their role in enhancing ...There are 2 components to this course, 8 homeworks, and 2 non-cumulative exams, a midterm and final exam. Most of the applied learning stems from the homeworks. There is 1 homework assignment due every alternate week. The assignments require knowledge in Python programming and a basic understanding of object-oriented …Lastly, I’ve heard good reviews about the course from others who have taken it. On OMSCentral, it has an average rating of 4.3 / 5 and an average difficulty of 2.5 / 5. The average number of hours a week is about 10 - 11. This makes it great for pairing with another course (IHI, which will be covered in another post).Before OMSCS I had graduated with my bachelor's from a decent but not too well known public university. I got a decent job as a full stack engineer at a Fortune 500 company. I wanted to learn more about Machine Learning and AI though and toyed around with the idea of shifting my career focus to ML, so I enrolled in OMSCS.A problem parameterized by these four components is known as a Markov decision process. The problem for a reinforcement learning algorithm is to find a policy \pi π that maximizes reward over time. We refer to the …Recall how we partition our data for a machine learning problem: we need a larger training set and a somewhat smaller testing set. Since we are looking at stock features over time - our data set is a time series - we have to ensure that the dates in the training set precede those in the test set. ... OMSCS Notes is made with in NYC by Matt ...I'm deciding between these two. My current plan is Computing Systems. I'm a SWE with an interest in ML, but I'm not sure I need to do the ML track to necessarily to reap its benefits. With Computing Systems I can still take 4 of the most appealing ML classes.I can see a lot of overlap, and this is not in the order I'd take them in. There's a theory course CS7545 Machine Learning Theory that's not offered for OMSCS. 7641 is different and geared towards the industry. After all, you're not going to write everything from scratch in the industry. Besides 7641 is an intro course with a lot of breadth. Before OMSCS I had graduated with my bachelor's from a decent but not too well known public university. I got a decent job as a full stack engineer at a Fortune 500 company. I wanted to learn more about Machine Learning and AI though and toyed around with the idea of shifting my career focus to ML, so I enrolled in OMSCS.Welcome to the official blog of OMSCS7641 Machine Learning! This digital space is dedicated to enriching your learning experience in one of the most dynamic and exciting areas of computer science. Our course, structured around four pivotal projects — Supervised Learning, Randomized Optimization, Unsupervised Learning, and …Math Prerequisite Concerns for OMSCS. I am VERY interested in OMSCS after finding it about a month ago online when looking into data science masters programs. This is especially the case because it sounds like the prerequisites may fit my situation (TLDR warning, feel free to skip next couple paragraphs to the question). If I can pick your brain a little more, would you say that the computing systems courses are a nice to have but not a core competency for a machine learning engineer, and are the ML courses in the OMSCS program sufficient enough to make the right ML models/algorithms for business/product requirements? Machine Learning Overhaul. CS 7641 ML. I'm interested in taking Machine Learning as it will definitely be a rewarding, challenging class with plenty of learning. But the reviews on this course are really putting me off! The professors apparently banter a lot with each other during the lecture, the lectures don't present anything but vague high ...ML is a great class with active TAs and an active professor. In that regard it is better than almost every other OMSCS class I have taken. What makes ML challenging is that, unlike most other classes where the assignment is "turn in an artifact that does X", the assignments are much more open-ended. In retrospect, the assignments seem almost ...OMSCS Machine Learning Blog Series; Summary. Selecting the right optimization problem is crucial for solving complex challenges, involving the adjustment of model parameters to optimize an objective function in machine learning. Mathematical and computational techniques aim to find the best solution from a set of feasible ones, …For instance, the OMSCS ML specialization requires you to take Graduate Algorithms. IMHO OMSA is a much better fit for data science, data analytics and machine learning jobs since it is more math intensive. There are a lot of courses in both OMSCS and OMSA that students from the other program can take. I believe OMSA students are allowed to ...Jupyter Notebook 100.0%. OMSCS Machine Learning Course. Contribute to okazkayasi/CS7641 development by creating an account on GitHub.Online Degree Overview. In January 2014, the Georgia Institute of Technology, Udacity, and AT&T teamed up to launch the first accredited Master of Science in Computer Science from an accredited university that students can earn exclusively through the "massive online" format and for a fraction of the cost of traditional, residential programs.This approach is called linear regression, and the resulting model can be described using the equation for a line: y = mx + b y = mx+ b. In this model, x x is the observed change in barometric pressure, y y is the predicted amount of rainfall, and m m and b b are the parameters that we must learn. Once we learn m m and b b, we can query our ... Welcome to the Online Master of Science in Computer Science (OMSCS) OMSCS is for students who want a top-ranked degree, but also the flexibility to fit it in around their work and family lives. Students who want to push their own career forward, but without the high cost of an on-campus degree program. Students who want to be part of the ... I'm in my second semester of OMSCS, specializing in Machine Learning. In my first semester (Fall 2022), I took ML4T and enjoyed it. This semester (Spring 2023), I'm taking CV and IIS. Taking two classes has been brutal (I work full-time and have a fairly active social life), especially with CV's workload, but I'm managing overall.Some of the benefits to science are that it allows researchers to learn new ideas that have practical applications; benefits of technology include the ability to create new machine...After that, machine learning. Next, deep learning and its various flavours (e.g., CNN, RNN, GAN). Now, it’s how to deploy and maintain and get business value from machine learning systems. OMSCS allowed me to straddle industry and academia. BTW, the technology (and buzzwords) change over time, but the problems remain the same—focus on the ...I am open sourcing the boiler plate code necessary for Assignment 4 so we can focus on the analysis instead. - juanjose49/omscs-cs7641-machine-learning-assignment-4From the official OMSCS page, here are the course offerings. RL in particular is Reinforcement Learning (CS 7642). Simlarly, BD4H is Big Data for Health Informatics (CSE 6250), DVA is Data and Visual Analytics (CSE 6242), ML4T is Machine Learning for Trading (CS 7646), etc.CS 7641 is definitely more applied machine learning. My undergrad had two separate courses that focused on ML theory and ML applications, and maybe some day omscs will have a purely theory based ML course.Recall how we partition our data for a machine learning problem: we need a larger training set and a somewhat smaller testing set. Since we are looking at stock features over time - our data set is a time series - we have to ensure that the dates in the training set precede those in the test set. ... OMSCS Notes is made with in NYC by Matt ...Overview. This course introduces students to the real world challenges of implementing machine learning based trading strategies including the algorithmic steps from information gathering to market orders. The focus is on how to apply probabilistic machine learning approaches to trading decisions.As far as being prepared for RL, some people have taken RL as their first course so you should be okay preparation wise as long as you do the work. The general recommendation is ML first then RL directly after because the ending of ML overlaps with RL though some have said taking RL first is good because it makes the ending of ML easier. 4. Share.That's not in the list of courses available to OMSCS students . Unless it's a new course offering, that course is not in OMSCS curriculum. You've taken courses already so you know how this works, not all courses in the course list are available in OMSCS. I looked up the course once and saw the notes, seems super heavy on math/theory (obviously).Welcome to the Online Master of Science in Computer Science (OMSCS) OMSCS is for students who want a top-ranked degree, but also the flexibility to fit it in around their work and family lives. Students who want to push their own career forward, but without the high cost of an on-campus degree program. Students who want to be part of the ...29 Oct 2022 ... A review of Georgia Tech's Artificial Intelligence class as part of the Online Master's program (CS 6601) Full article here: ...OMSCS Machine Learning Blog Series; Summary. Discover the fascinating journey of clustering algorithms from their inception in the early 20th century to the cutting-edge advancements of the 2020s. This article unveils the evolution of these algorithms, beginning with their foundational use in anthropology and psychology, through to the ...The site covers a wide range of topics from basic heuristic algorithms and machine learning differences to advanced applications like GPT-3 for text classification. For instance, we delve into the complexities and practical applications of heuristic algorithms versus machine learning, providing insights into when to use each for …Many have asked how Machine Learning CS 7641 (ML) compares to the AI course. Now that I have taken both, I am qualified to answer that question and provide guidance to those not on the ML track. If you are in the ML track, ML is required. AI is required in the Interactive Intelligence track. The AI course is a programming and algorithms class ...In this era of machine learning and data analysis, the quest to understand complex relationships within high-dimensional data like images or videos is not simple and often requires techniques beyond simple ones. The patterns are complex, twisted and intertwined, defying the simplicity of straight lines.Jan 3, 2024. -- Machine Learning, often considered a challenging OMSCS course, has deterred many from pursuing the ML specialization. In this article, I share my successful journey through...Transfer learning is a machine learning technique that utilizes a model already trained for one task on another separate, related task. In this article, we will take a deep dive into what this means, why transfer learning has become increasingly popular to boost neural network performance, and how you can use transfer learning on your […]In today’s digital age, businesses are constantly seeking ways to gain a competitive edge and drive growth. One powerful tool that has emerged in recent years is the combination of... If not, you may consider something else. HCI is a good class to start with. DB wouldn't be a bad choice either. Don't get discouraged if you can't get the classes you want in the order you want. It's all gonna work out just fine. (My course history: FA21, AI, HCI; SP22: ML, ML4t; SU22 EdTech, DB) 2. GeorgePBurdell1927. The most popular, OG and (even after price increase) crazy cheap degree programme we all know. Be prepared to be trolled if you don't even know how to read the rules, read the orientation document, or do a simple Google search. Check us out in Slack @ omscs-study.slack.com. Check class vacancies @ www.omscs.rocks.
12 Dec 2022 ... 7:26 · Go to channel · Georgia Tech OMSCS Machine Learning for Trading Review | CS 7646. Coolster Codes•2.3K views · 10:08 · Go to chann.... What is tyrus real name
Man and machine. Machine and man. The constant struggle to outperform each other. Man has relied on machines and their efficiency for years. So, why can’t a machine be 100 percent ...Man and machine. Machine and man. The constant struggle to outperform each other. Man has relied on machines and their efficiency for years. So, why can’t a machine be 100 percent ... A problem parameterized by these four components is known as a Markov decision process. The problem for a reinforcement learning algorithm is to find a policy \pi π that maximizes reward over time. We refer to the theoretically optimal policy, which the learning algorithm may or may not find, as \pi^* π∗. This guide is designed to set you up to use many of the foundational tools and resources you will use during your time in OMSCS 7641. This post is intended to be a practical crash course introduction to setting up your environment and understanding the purpose of each tool for data science.Plan #2 ML Spec w/ Heavy AI Bias, but take OS or Security. ML Specialization. CS 8803 - Graduate Algorithms. CS 7641 - Machine Learning. CS 7642 - Reinforcement Learning and Decision Making. CS 7646 - Machine Learning for Trading. CSE 6250 - Big Data for Health. ++. CS 6400 - Database Systems Concepts and Design.Specialization - 3 course series. The Machine Learning Specialization is a foundational online program created in collaboration between DeepLearning.AI and Stanford Online. This beginner-friendly program will teach you the fundamentals of machine learning and how to use these techniques to build real-world AI applications. The most valuable thing you can do is an independent project centered around machine learning. Do just one, and make it awesome. Post it online for general use, ideally for pay but make it free if you must in order to get real users. Many of the ML/AI classes here will give you a deep understanding of the fundamentals, but are pretty useless ... If I can pick your brain a little more, would you say that the computing systems courses are a nice to have but not a core competency for a machine learning engineer, and are the ML courses in the OMSCS program sufficient enough to make the right ML models/algorithms for business/product requirements?OMSCS Retrospective. At the end of 2021, I finished earning my master’s degree in computer science through Georgia Tech’s OMSCS program. This post is a look back on that experience. Previously, I wrote about my motivation for enrolling in OMSCS. In terms of time, it took me 4.5 years to complete the program. I was working full time …Hi, I have already taken AI and CN, and trying to decide the order for the remaining eight courses (GIOS, SDP, ML, HPC, BM, DL, RLDM, GA ). Please let me know if something seems wrong with this order: GIOS -> SDP -> ML -> HPC -> BM -> DL -> RLDM -> GA. Thanks, Archived post. New comments cannot be posted and votes cannot be cast. I did … I have already taken AI and CN, and trying to decide the order for the remaining eight courses (GIOS, SDP, ML, HPC, BM, DL, RLDM, GA ). Please let me know if something seems wrong with this order: GIOS -> SDP -> ML -> HPC -> BM -> DL -> RLDM -> GA. Thanks, Archived post. New comments cannot be posted and votes cannot be cast. I did as following ... Overview. This course is a graduate-level course in the design and analysis of algorithms. We study techniques for the design of algorithms (such as dynamic programming) and algorithms for fundamental problems (such as fast Fourier transform FFT). In addition, we study computational intractability, specifically, the theory of NP-completeness. For instance, the OMSCS ML specialization requires you to take Graduate Algorithms. IMHO OMSA is a much better fit for data science, data analytics and machine learning jobs since it is more math intensive. There are a lot of courses in both OMSCS and OMSA that students from the other program can take. I believe OMSA students are allowed to ...I'm halfway through the OMSCS in the machine learning specialization. It has been a great experience so far and definitely worth it for me. ... ML flows nicely into RL, although I've heard ML4T is a gentler intro if you have no experience in machine learning at all (I haven't taken it yet) Guidelines ...Image generated with DALLE 3. Introduction Welcome! This blog post will serve as your introduction to Machine Learning in Python. This guide is designed to set ...I'm in my second semester of OMSCS, specializing in Machine Learning. In my first semester (Fall 2022), I took ML4T and enjoyed it. This semester (Spring 2023), I'm taking CV and IIS. Taking two classes has been brutal (I work full-time and have a fairly active social life), especially with CV's workload, but I'm managing overall.January 23, 2024. Uncategorized. Welcome to the official blog of OMSCS7641 Machine Learning! This digital space is dedicated to enriching your learning experience in one of the most dynamic and exciting areas of computer science. Our course, structured around four pivotal projects — Supervised Learning, Randomized Optimization, Unsupervised ...Check us out in Slack @ omscs-study.slack.com. Check class vacancies @ www.omscs.rocks. ... Systems & Analysis CS 6476 Computer Vision CS 7535 Markov Chain Monte Carlo CS 7540 Spectral Algorithms CS 7545 Machine Learning Theory CS 7616 Pattern Recognition CS 7626 Behavioral Imaging CS 7642 Reinforcement …Hoefler, Torsten, et al. “Sparsity in deep learning: Pruning and growth for efficient inference and training in neural networks.” The Journal of Machine Learning Research 22.1 (2021): 10882–11005. He, Kaiming, et al. “Delving deep into rectifiers: Surpassing human-level performance on imagenet classification.”.