Materials
A framework for redescription set construction
Mihelčić, Matej, Džeroski, Sašo, Lavrač, Nada, Šmuc, Tomislav
Redescription mining is a field of knowledge discovery that aims at finding different descriptions of similar subsets of instances in the data. These descriptions are represented as rules inferred from one or more disjoint sets of attributes, called views. As such, they support knowledge discovery process and help domain experts in formulating new hypotheses or constructing new knowledge bases and decision support systems. In contrast to previous approaches that typically create one smaller set of redescriptions satisfying a pre-defined set of constraints, we introduce a framework that creates large and heterogeneous redescription set from which user/expert can extract compact sets of differing properties, according to its own preferences. Construction of large and heterogeneous redescription set relies on CLUS-RM algorithm and a novel, conjunctive refinement procedure that facilitates generation of larger and more accurate redescription sets. The work also introduces the variability of redescription accuracy when missing values are present in the data, which significantly extends applicability of the method. Crucial part of the framework is the redescription set extraction based on heuristic multi-objective optimization procedure that allows user to define importance levels towards one or more redescription quality criteria. We provide both theoretical and empirical comparison of the novel framework against current state of the art redescription mining algorithms and show that it represents more efficient and versatile approach for mining redescriptions from data.
From the Iron Age to the "Machine Learning Age"
It is likely self-evident to many that the security industry's most overused buzzword of the year is "machine learning." Yet, despite the ubiquity of the term and its presence in company marketing literature, most people – including those working for many of the vendors using the term – don't actually know what it means. Scanning through industry sites and product descriptions, machine learning is often positioned as either a "new" tool or a "new" method – something that can provide additional capabilities or features. For many classes of threat detection, machine learning is positioned as "signatureless" detection by those that don't yet know the basic principles of the math or science behind it. The best way to understand what machine learning is and what it truly brings to the security industry is to compare it to a technology advance that kick-started two centuries ago – the steel age.
Anomaly Detection Using H2O Deep Learning - DZone Big Data
In a previous article, we had an overview of the applications of Deep Learning and touched upon some basic points to consider while creating a Deep Learning model. We also had an overview of what it is and methods to get started with deep learning. In this article, we jump straight into creating an anomaly detection model using Deep Learning and anomaly package from H2O. Readers who don't know what it is can view it as anything that occurs unexpected and is a rare event. It is a deviation from the standard pattern and does not confirm to the usual behavior of the data. Let's say we work in a steel manufacturing industry, and we see the quality of the steel suddenly drops down below the permissible limits. This is an anomaly; if not detected and resolved soon will cost the organization millions.
Make Mars Great Again - Issue 43: Heroes
Mars is currently inhabited by an estimated 1 million microbes. They coat the surfaces and crowd the innards of our robotic landers and rovers, which international policy requires to be cleaned, but not fully sterilized. The bugs are dormant, but viable. If Mars warmed up and water began to flow again, these microorganisms would revive and reproduce. And it is within our power to make that happen.
The Best Gear and Gadgets of 2016: Entertaining
Click to comment on this story. Click to comment on this story. Give your dinner party some gravitas by placing this stunning centerpiece among the sides and sauces. The beautiful jewel-toned object has a concave scoop in the center, providing a reflective surface that encourages deep thought--or offers an awesome place to toss your keys. It can control your entire home--commanding 380,000 devices in all, from TVs and game consoles to wireless speakers and streaming devices. Just try not to lose this one, OK?
Synthetic Biology Advances With Robotics and Machine Learning Lux Spotlight
Synthetic biology ("synbio") initially attracted high-profile venture capitalists and corporate partnerships for its products – bio-based chemicals and alternative fuels, for example. Today, synbio companies tools are attracting attention as well – from lab automation like DNA synthesis-as-a-service, to software (i.e. By integrating machine-learning, robotics, and high-throughput engineering, companies like Ginkgo Bioworks and Zymergen are helping customers dramatically reduce the timeline for developing new molecules in the flavor and fragrance, food ingredient, medical, agricultural, and specialty chemicals markets – a key reason that those two startups each raised more than $100 million in 2016. This podcast highlights Lux's thoughts on the impact of these tools in and beyond in synbio, and the rapidly developing ecosystem of startups within the space.
Differences between Data Mining and Predictive Analytics
Data mining is an integrated application in the Data Warehouse and describes a systematic process for pattern recognition in large data sets to identify conclusions and relationships. Using statistical methods, or genetic algorithms, data files can be automatically searched for statistical anomalies, patterns or rules. Wikipedia defines Data Mining as "Data mining is an interdisciplinary subfield of computer science. It is the computational process of discovering patterns in large data sets involving methods at the intersection of artificial intelligence, machine learning, statistics, and database systems. The overall goal of the data mining process is to extract information from a data set and transform it into an understandable structure for further use."
E81: Abhik Banerjee, Staff Data Scientist at Kohl's Department Stores – Interview
This is a great interview with Abhik Banerjee. Abhik is a Staff Data Scientist at Kohl's Technology (at the Kohl's departmental stores) where he leads a team on machine learning and data mining projects. He also provides strategic direction around these areas to senior executives at Kohl's. Abhik has an interesting role because he has to marry online and physical store analytics to provide insights to Kohl's. Abhik received his MS in computer science from the University of Cincinnati in 2012. Welcome to another episode of Flyover Labs. Today we are lucky enough to have Abhik Banerjee with us. And Abhik is a Staff Data Scientist at Kohl's Department Stores where he works on machine learning and data mining projects.
Health Catalyst launches free open source machine learning and artificial intelligence tool 7wData
Health Catalyst has created Healthcare.ai, a website that offers free open source predictive analytics software for hospitals and other healthcare organizations. "Wherever you have a data set that you pull together, you can create a model based on that by using these tools," said Levi Thatcher, director of data science at Health Catalyst. Machine learning and predictive analytics to improve health outcomes has so far been limited to an elite group of data scientists, mostly in the nation's top academic medical centers, he pointed out. Healthcare.ai – open source predictive analytics software – is part of a mission to make machine learning accessible to the thousands of healthcare professionals with only basic technical skills, but who share an interest in using the technology to improve patient care, Thatcher explained. By making its central repository of proven machine learning algorithms freely available, Healthcare.ai opens the doors to a large, diverse group of technical healthcare professionals to quickly use machine learning tools to build accurate models.
Reading The Game: No Man's Sky
For years now, some of the best, wildest, most moving or revealing stories we've been telling ourselves have come not from books, movies or TV, but from video games. So we're starting an occasional series, Reading The Game, in which we take a look at some of these games from a literary perspective. Seeded onto a pinkish and poisoned world of scouring winds, I stumbled from my broken spaceship, unsure of my footing or anything else. I saw strange plants moving, the stalagmite spikes of ore deposits like plutonium fangs, the wreckage of my crash, dust. When I moved, I heard nothing but the crunch of my heavy boots and the occasional chime from my spacesuit -- followed, always, by the weirdly autotuned computer voice in my ear saying, "Environmental protection falling ..." And hers was the only human voice left to speak in the whole of this impossible universe.