“We present a novel angular fingerprinting algorithm for detecting changes in the direction of rotation of a target with a monostatic, stationary sonar platform. Unlike other approaches, we assume that the target’s centroid is stationary, and exploit doppler multipath signals to resolve the otherwise unavoidable ambiguities that arise. Since the algorithm is based on an underlying differential topological theory, it is highly robust to distortions in the collected data. We demonstrate performance of this algorithm experimentally, by exhibiting a pulsed doppler sonar collection system that runs on a smartphone. The performance of this system is sufficiently good to both detect changes in target rotation direction using angular fingerprints, and also to form high-resolution inverse synthetic aperature images of the target.”
“This paper gives an introduction to the problem of mapping simple polygons with autonomous agents. We focus on minimalistic agents that move from vertex to vertex along straight lines inside a polygon, using their sensors to gather local observations at each vertex. Our attention revolves around the question whether a given configuration of sensors and movement capabilities of the agents allows them to capture enough data in order to draw conclusions regarding the global layout of the polygon. In particular, we study the problem of reconstructing the visibility graph of a simple polygon by an agent moving either inside or on the boundary of the polygon. Our aim is to provide insight about the algorithmic challenges faced by an agent trying to map a polygon. We present an overview of techniques for solving this problem with agents that are equipped with simple sensorial capabilities. We illustrate these techniques on examples with sensors that mea– sure angles between lines of sight or identify the previous location. We give an overview over related problems in combinatorial geometry as well as graph exploration.”
“A number of representation schemes have been presented for use within Learning Classifier Systems, ranging from binary encodings to Neural Networks, and more recently Dynamical Genetic Programming (DGP). This paper presents results from an investigation into using a fuzzy DGP representation within the XCSF Learning Classifier System. In particular, asynchronous Fuzzy Logic Networks are used to represent the traditional condition-action production system rules. It is shown possible to use self-adaptive, open-ended evolution to design an ensemble of such fuzzy dynamical systems within XCSF to solve several well-known continuous-valued test problems.”
“What mystified Grove was the assertion, voiced by the economist Alan Blinder and others, “that as long as ‘knowledge work’ stays in the U.S., it doesn’t matter what happens to factory jobs.” This was not only inhumane, Grove declared; it was idiotic.”
“Determining whether an unordered collection of overlapping substrings (called shingles) can be uniquely decoded into a consistent string is a problem that lies within the foundation of a broad assortment of disciplines ranging from networking and information theory through cryptography and even genetic engineering and linguistics. We present three perspectives on this problem: a graph theoretic framework due to Pevzner, an automata theoretic approach from our previous work, and a new insight that yields a time-optimal streaming algorithm for determining whether a string of $n$ characters over the alphabet $Sigma$ can be uniquely decoded from its two-character shingles. Our algorithm achieves an overall time complexity $Theta(n)$ and space complexity $O(|Sigma|)$. As an application, we demonstrate how this algorithm can be extended to larger shingles for efficient string reconciliation.”
“They’re turning universities into incubators. It’s happening at NYU and Harvard, two schools I have some familiarity with. Probably everywhere else too, to some extent. But I’d guess these two schools are pretty leading edge. Stanford has been there for a few generations.”
“Slavery is often portrayed by revisionist historians as somehow antithetical to market capitalism; in reality, slavery was a winning portfolio investment, the very incarnation of just how evil “free-market” capitalism can be. As the authors write:
“If slaves … were an investment included in the asset portfolio of the planter/entrepreneur, they helped satisfy the owner’s demand for wealth. But unlike most other forms of capital, which depreciate with time, the stock of slaves appreciated. Thus, the growth of the slave population continuously increased the stock of wealth.”
What makes this graph so disturbing for us in 2012 is what it suggests about today’s “1 percent” — and how they view the rest of us. It gives form to the brutal crackdown on the Occupy protests — and suggests darker things to come as we try to free ourselves from their vision of civilization, and our place in it.”
“Upon the close of the May 1 comment period, it is our intention to begin posting these 73 standards in HTML and begin the process of providing a unified, easy-to-use interface to all public safety standards in the Code of Federal Regulations. It is also our intention to continue this effort to include all standards specifically incorporated by reference in the 50 states. That the law must be available to citizens is a cardinal principle of law in countries such as India and the United Kingdom, and we will expand our efforts to include those jurisdictions as well.”
It is time to suppress this sort of research. If we’re not careful, people will start looking at contemporary dynamics. Please have your Posterity Docent initiate Elephant Protocol Mu now.
Also: I want the little bead-flow animations.
“The tension arises from the fact that it is often more profitable to rip a customer’s face off in the short term than to defer potentially larger profit opportunities with the same client in the long term. When bankers whose personal franchises, careers, and compensation depends on the former are evenly balanced with bankers whose interests are aligned with the latter, an investment bank perches profitably if precariously on the knife’s edge of sustainable profitability. Notwithstanding industry critics’ perception that all investment bankers are all looking for a quick and easy score, those of us who actually work in the relationship side of the business know that our best personal outcome depends on a sustained career success lasting over a decade or more. Unlike, perhaps, traders who transact daily with equally ruthless hedge fund counterparties on a no-regrets, no-grudges basis, bankers like me in corporate finance and M&A transact with the same limited universe of clients year-in and year-out. We simply cannot afford to screw them over, because they do hold a grudge.”
‘Even if you have the most up-to-date edition of the very latest textbook, I think it’s recognize that the textbook — as an object, as instructional practice — is still a relic. It is a relic of a time when information was scarce. It’s a relic of the way in which we manufactured and scaled the industrial model of education — a teacher at the front of the classroom, assigning the lessons and readings from an authoritative text. One that was bound by print. One that was distributed state and even nation-wide. One that was uniform. Somewhere along the way, “textbook” became “curriculum” — and under today’s testing regime, that all became wrapped up in “assessment.“‘