2,331,307 research outputs found
"Weekly Honor Senior Thesis Write-Ins" posters
This poster aims to make BU students aware of programs available to help them write their Senior Honor Thesis papers with BU Mugar Library. Sponsored by College of Arts & Sciences Writing Program & Boston University Libraries
More damn lies about data access
More data than we can handle is no excuse to give up our efforts to promote data access, but it may make us think about new ways to make it sustainable.
[This draft was written in the hope that participants of the Sage Congress will write an Nature Genetics Editorial in the manner of Tom Sawyer’s white fence (Twain M. 1876). All contributions received by April 10th 2011 will be attributed.]

TensorFlow Estimators: Managing Simplicity vs. Flexibility in High-Level Machine Learning Frameworks
We present a framework for specifying, training, evaluating, and deploying
machine learning models. Our focus is on simplifying cutting edge machine
learning for practitioners in order to bring such technologies into production.
Recognizing the fast evolution of the field of deep learning, we make no
attempt to capture the design space of all possible model architectures in a
domain- specific language (DSL) or similar configuration language. We allow
users to write code to define their models, but provide abstractions that guide
develop- ers to write models in ways conducive to productionization. We also
provide a unifying Estimator interface, making it possible to write downstream
infrastructure (e.g. distributed training, hyperparameter tuning) independent
of the model implementation. We balance the competing demands for flexibility
and simplicity by offering APIs at different levels of abstraction, making
common model architectures available out of the box, while providing a library
of utilities designed to speed up experimentation with model architectures. To
make out of the box models flexible and usable across a wide range of problems,
these canned Estimators are parameterized not only over traditional
hyperparameters, but also using feature columns, a declarative specification
describing how to interpret input data. We discuss our experience in using this
framework in re- search and production environments, and show the impact on
code health, maintainability, and development speed.Comment: 8 pages, Appeared at KDD 2017, August 13--17, 2017, Halifax, NS,
Canad
Covariant Majorana Formulation of Electrodynamics
We construct an explicit covariant Majorana formulation of Maxwell
electromagnetism which does not make use of vector 4-potential. This allows to
write a ``Dirac'' equation for the photon containing all the known properties
of it. In particular, the spin and (intrinsic) boost matrices are derived and
the helicity properties of the photon are studied.Comment: 12 pages, Latex2
Using Short Synchronous WOM Codes to Make WOM Codes Decodable
In the framework of write-once memory (WOM) codes, it is important to
distinguish between codes that can be decoded directly and those that require
that the decoder knows the current generation to successfully decode the state
of the memory. A widely used approach to construct WOM codes is to design first
nondecodable codes that approach the boundaries of the capacity region, and
then make them decodable by appending additional cells that store the current
generation, at an expense of a rate loss. In this paper, we propose an
alternative method to make nondecodable WOM codes decodable by appending cells
that also store some additional data. The key idea is to append to the original
(nondecodable) code a short synchronous WOM code and write generations of the
original code and of the synchronous code simultaneously. We consider both the
binary and the nonbinary case. Furthermore, we propose a construction of
synchronous WOM codes, which are then used to make nondecodable codes
decodable. For short-to-moderate block lengths, the proposed method
significantly reduces the rate loss as compared to the standard method.Comment: To appear in IEEE Transactions on Communications. The material in
this paper was presented in part at the 2012 IEEE International Symposium on
Information Theory, Cambridge, MA, July 201
Transferable Output ASCII Data (TOAD) file format description
Described is a format for writing ASCII data on a file to facilitate its transfer from one computer system to another. The TOAD format conforms to all ANSI FORTRAN 77 standards. There are two advantages in using the TOAD format. First, TOAD files are of the preferred type and record length to make them easy to edit, read from and write on magnetic tape, or transfer across communications networks. Secondly, application programs, using the TOAD format to write computational results, are more portable and the answer files easier to postprocess. TOAD utility software is listed in an appendix
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