691 research outputs found
Pick and Place Bot: ASME Design Challenge
Design a bot that meets the standards of and is able to compete in the 2019 ASME Design Challenge
Mapping the UK Webspace: Fifteen Years of British Universities on the Web
This paper maps the national UK web presence on the basis of an analysis of
the .uk domain from 1996 to 2010. It reviews previous attempts to use web
archives to understand national web domains and describes the dataset. Next, it
presents an analysis of the .uk domain, including the overall number of links
in the archive and changes in the link density of different second-level
domains over time. We then explore changes over time within a particular
second-level domain, the academic subdomain .ac.uk, and compare linking
practices with variables, including institutional affiliation, league table
ranking, and geographic location. We do not detect institutional affiliation
affecting linking practices and find only partial evidence of league table
ranking affecting network centrality, but find a clear inverse relationship
between the density of links and the geographical distance between
universities. This echoes prior findings regarding offline academic activity,
which allows us to argue that real-world factors like geography continue to
shape academic relationships even in the Internet age. We conclude with
directions for future uses of web archive resources in this emerging area of
research.Comment: To appear in the proceeding of WebSci 201
Pidgeon Digital
Review of Pidgeon Digital, Reviewed August 2017 by Josh Meyer, Knowledge Manager KieranTimberlake | Architecture, Planning, Research [email protected]
Mycity, Mysounds
Review of Mycity, Mysounds, Reviewed February 2017 by Josh Meyer, Knowledge Manager KieranTimberlake [email protected]
Scan the World
Review of Scan the World, Reviewed December 2017 by Josh Meyer, Knowledge Manager, KieranTimberlake | Architecture, Planning, Research [email protected]
Protoplanetary Disk Masses in the Young NGC 2024 Cluster
We present the results from a Submillimeter Array survey of the 887 micron
continuum emission from the protoplanetary disks around 95 young stars in the
young cluster NGC 2024. Emission was detected from 22 infrared sources, with
flux densities from ~5 to 330 mJy; upper limits (at 3sigma) for the other 73
sources range from 3 to 24 mJy. For standard assumptions, the corresponding
disk masses range from ~0.003 to 0.2Msolar, with upper limits at
0.002--0.01Msolar. The NGC 2024 sample has a slightly more populated tail at
the high end of its disk mass distribution compared to other clusters, but
without more information on the nature of the sample hosts it remains unclear
if this difference is statistically significant or a superficial selection
effect. Unlike in the Orion Trapezium, there is no evidence for a disk mass
dependence on the (projected) separation from the massive star IRS2b in the NGC
2024 cluster. We suggest that this is due to either the cluster youth or a
comparatively weaker photoionizing radiation field.Comment: ApJ, in pres
Communication and Data Sharing between K-12 and Community Colleges
This report investigates communication and data sharing between K-12 and community colleges to identify best practices. This wide-ranging topic encompassed many efforts that impact student recruitment, retention and success in their postsecondary education. To prioritize the most pressing issues, this report focuses on recent system-wide findings and recommendations. In 2016, the Virginia General Assembly directed the Joint Legislative Audit and Review Commission (JLARC) to review the VCCS, a process that had not been done since 1991. The JLARC report in 2017 stated that a relatively low percentage of community college students obtain a degree or credential (39 percent). In addition to the JLARC report on student success findings among Virginia’s Community Colleges, community colleges do not consistently ensure the quality of dual enrollment courses.
To meet the JLARC report’s call to action, strong communication and data sharing between Virginia’s Community Colleges and their K-12 partners is essential. Through background literature research, surveys and interviews with key stakeholders, this report identifies current practices in data sharing and communication, including successes and shortcomings. Recommendations will provide concrete steps to improve communications and data sharing between Virginia’s Community Colleges and their K-12 partners
PennyLane: Automatic differentiation of hybrid quantum-classical computations
PennyLane is a Python 3 software framework for optimization and machine
learning of quantum and hybrid quantum-classical computations. The library
provides a unified architecture for near-term quantum computing devices,
supporting both qubit and continuous-variable paradigms. PennyLane's core
feature is the ability to compute gradients of variational quantum circuits in
a way that is compatible with classical techniques such as backpropagation.
PennyLane thus extends the automatic differentiation algorithms common in
optimization and machine learning to include quantum and hybrid computations. A
plugin system makes the framework compatible with any gate-based quantum
simulator or hardware. We provide plugins for Strawberry Fields, Rigetti
Forest, Qiskit, Cirq, and ProjectQ, allowing PennyLane optimizations to be run
on publicly accessible quantum devices provided by Rigetti and IBM Q. On the
classical front, PennyLane interfaces with accelerated machine learning
libraries such as TensorFlow, PyTorch, and autograd. PennyLane can be used for
the optimization of variational quantum eigensolvers, quantum approximate
optimization, quantum machine learning models, and many other applications.Comment: Code available at https://github.com/XanaduAI/pennylane/ .
Significant contributions to the code (new features, new plugins, etc.) will
be recognized by the opportunity to be a co-author on this pape
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