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46 results on '"Muralidhara, V."'

1. CCAT-prime Collaboration: Science Goals and Forecasts with Prime-Cam on the Fred Young Submillimeter Telescope

Author

collaboration, CCAT-Prime, Aravena, M., Austermann, J. E., Basu, K., Battaglia, N., Beringue, B., Bertoldi, F., Bigiel, F., Bond, J. R., Breysse, P. C., Broughton, C., Bustos, R., Chapman, S. C., Charmetant, M., Choi, S. K., Chung, D. T., Clark, S. E., Cothard, N. F., Crites, A. T., Dev, A., Douglas, K., Duell, C. J., Dunner, R., Ebina, H., Erler, J., Fich, M., Fissel, L. M., Foreman, S., Gallardo, P. A., Gao, J., García, Pablo, Giovanelli, R., Golec, J. E., Groppi, C. E., Haynes, M. P., Henke, D., Hensley, B., Herter, T., Higgins, R., Hlozek, R., Huber, A., Huber, Z., Hubmayr, J., Jackson, R., Johnstone, D., Karoumpis, C., Keating, L. C., Komatsu, E., Li, Y., Magnelli, B., Matthews, B. C., Mauskopf, P., McMahon, J. J., Meerburg, P. D., Meyers, J., Muralidhara, V., Murray, N. W., Niemack, M. D., Nikola, T., Okada, Y., Puddu, R., Riechers, D. A., Rosolowsky, E., Rossi, K., Rotermund, K., Roy, A., Sadavoy, S. I., Schaaf, R., Schilke, P., Scott, D., Simon, R., Sinclair, Adrian K., Sivakoff, G. R., Stacey, G. J., Stutz, Amelia M., Stutzki, J., Tahani, M., Thanjavur, K., Timmermann, R. A., Ullom, J. N., van Engelen, A., Vavagiakis, E. M., Vissers, M. R., Wheeler, J. D., White, S. D. M., Zhu, Y., and Zou, B.

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

We present a detailed overview of the science goals and predictions for the Prime-Cam direct detection camera/spectrometer being constructed by the CCAT-prime collaboration for dedicated use on the Fred Young Submillimeter Telescope (FYST). The FYST is a wide-field, 6-m aperture submillimeter telescope being built (first light in mid-2024) by an international consortium of institutions led by Cornell University and sited at more than 5600 meters on Cerro Chajnantor in northern Chile. Prime-Cam is one of two instruments planned for FYST and will provide unprecedented spectroscopic and broadband measurement capabilities to address important astrophysical questions ranging from Big Bang cosmology through reionization and the formation of the first galaxies to star formation within our own Milky Way galaxy. Prime-Cam on the FYST will have a mapping speed that is over ten times greater than existing and near-term facilities for high-redshift science and broadband polarimetric imaging at frequencies above 300 GHz. We describe details of the science program enabled by this system and our preliminary survey strategies., Comment: 61 pages, 16 figures. Resubmitted to ApJSS July 11, 2022

Published
2021
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3. Privacy Preserving Architectures for Collaborative Intrusion Detection

Author

Dara, Sashank and Muralidhara, V. N.

Subjects
Computer Science - Cryptography and Security
Abstract

Collaboration among multiple organizations is imperative for contemporary intrusion detection. As modern threats become well sophisticated it is difficult for organizations to defend with threat context local to their networks alone. Availability of global \emph{threat intelligence} is must for organizations to defend against modern advanced persistent threats (APTs). In order to benefit from such global context of attacks, privacy concerns continue to be of major hindrance. In this position paper we identify real world privacy problems as precise use cases, relevant cryptographic technologies and discuss privacy preserving architectures for collaborative intrusion detection., Comment: 9 Pages, 2 figures, Position paper

Published
2016

4. Online Travelling Salesman Problem on a Circle

Author

Jawgal, Vinay A., Muralidhara, V. N., Srinivasan, P. S., Hutchison, David, Editorial Board Member, Kanade, Takeo, Editorial Board Member, Kittler, Josef, Editorial Board Member, Kleinberg, Jon M., Editorial Board Member, Mattern, Friedemann, Editorial Board Member, Mitchell, John C., Editorial Board Member, Naor, Moni, Editorial Board Member, Pandu Rangan, C., Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Terzopoulos, Demetri, Editorial Board Member, Tygar, Doug, Editorial Board Member, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Gopal, T.V., editor, and Watada, Junzo, editor

Published
2019
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5. Dynamic Control of Storage Bandwidth Using Double Deep Recurrent Q-Network

Author

Dheenadayalan, Kumar, Srinivasaraghavan, Gopalakrishnan, Muralidhara, V. N., Hutchison, David, Series Editor, Kanade, Takeo, Series Editor, Kittler, Josef, Series Editor, Kleinberg, Jon M., Series Editor, Mattern, Friedemann, Series Editor, Mitchell, John C., Series Editor, Naor, Moni, Series Editor, Pandu Rangan, C., Series Editor, Steffen, Bernhard, Series Editor, Terzopoulos, Demetri, Series Editor, Tygar, Doug, Series Editor, Weikum, Gerhard, Series Editor, Cheng, Long, editor, Leung, Andrew Chi Sing, editor, and Ozawa, Seiichi, editor

Published
2018
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6. The covert set-cover problem with application to Network Discovery

Author

Sen, Sandeep and Muralidhara, V. N.

Subjects
Computer Science - Data Structures and Algorithms
Abstract

We address a version of the set-cover problem where we do not know the sets initially (and hence referred to as covert) but we can query an element to find out which sets contain this element as well as query a set to know the elements. We want to find a small set-cover using a minimal number of such queries. We present a Monte Carlo randomized algorithm that approximates an optimal set-cover of size $OPT$ within $O(\log N)$ factor with high probability using $O(OPT \cdot \log^2 N)$ queries where $N$ is the input size. We apply this technique to the network discovery problem that involves certifying all the edges and non-edges of an unknown $n$-vertices graph based on layered-graph queries from a minimal number of vertices. By reducing it to the covert set-cover problem we present an $O(\log^2 n)$-competitive Monte Carlo randomized algorithm for the covert version of network discovery problem. The previously best known algorithm has a competitive ratio of $\Omega (\sqrt{n\log n})$ and therefore our result achieves an exponential improvement.

Published
2012

7. Similarity Based Interactive Private Information Retrieval

Author

Dara, Sashank, Muralidhara, V. N., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Ali, Sk Subidh, editor, Danger, Jean-Luc, editor, and Eisenbarth, Thomas, editor

Published
2017
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8. Policy Gradient Reinforcement Learning for I/O Reordering on Storage Servers

Author

Dheenadayalan, Kumar, Srinivasaraghavan, Gopalakrishnan, Muralidhara, V. N., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Liu, Derong, editor, Xie, Shengli, editor, Li, Yuanqing, editor, Zhao, Dongbin, editor, and El-Alfy, El-Sayed M., editor

Published
2017
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9. Self-tuning Filers — Overload Prediction and Preventive Tuning Using Pruned Random Forest

Author

Dheenadayalan, Kumar, Srinivasaraghavan, Gopalakrishnan, Muralidhara, V. N., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Kim, Jinho, editor, Shim, Kyuseok, editor, Cao, Longbing, editor, Lee, Jae-Gil, editor, Lin, Xuemin, editor, and Moon, Yang-Sae, editor

Published
2017
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11. Simulator Prototyping Through Graphical Dependency Modeling

Author

Dheenadayalan, Kumar, Muralidhara, V. N., Srinivasaraghavan, G., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, and Perner, Petra, editor

Published
2016
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12. Pruning a Random Forest by Learning a Learning Algorithm

Author

Dheenadayalan, Kumar, Srinivasaraghavan, G., Muralidhara, V. N., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, and Perner, Petra, editor

Published
2016
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13. Storage Load Control Through Meta-Scheduler Using Predictive Analytics

Author

Dheenadayalan, Kumar, Muralidhara, V. N., Srinivasaraghavan, Gopalakrishnan, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Bjørner, Nikolaj, editor, Prasad, Sanjiva, editor, and Parida, Laxmi, editor

Published
2016
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16. The Covert Set-Cover Problem with Application to Network Discovery

Author

Sen, Sandeep, Muralidhara, V. N., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Rahman, Md. Saidur, editor, and Fujita, Satoshi, editor

Published
2010
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17. Minimizing Total Flow-Time: The Unrelated Case

Author

Garg, Naveen, Kumar, Amit, Muralidhara, V. N., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Hong, Seok-Hee, editor, Nagamochi, Hiroshi, editor, and Fukunaga, Takuro, editor

Published
2008
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33. Smart Meter Modelling and Fault Location Communication in Smart Grid.

Author

Vilas, Velhal Geeta, Muralidhara, V., Bakre, Shashikant Madhukar, and Velhal, Vaishali

Subjects
*ELECTRIC fault location, *SMART meters, *ELECTRICAL engineering, *SMART power grids, *ELECTRIC power, *ELECTRIC power systems
Abstract

This paper includes a novice technique for locating single line to ground fault in electrical transmission network. Validation of the proposed algorithm is demonstrated using MATLAB Simulink. Simpower system tool box is used for the modeling of smart meter, transmission lines and single line to ground fault (1L-G). A novel method is proposed to countercheck whether the fault has occurred really or not. Data related to 1l-G fault has been collected at 220kV Lonikand substation and analyzed exclusively during the visit at Kalkitech (top manufacturing company of Intelligent Electronic Devices (IEDs) in Bangalore, Karnataka, India). Effect of harmonics on fault current measurement using smart meter is elaborated. Advancements in communication technology are illustrated from asset management perspective. [ABSTRACT FROM AUTHOR]

Published
2018

46. A Novel Approach of Fault Location in Electrical Transmission System using Smart Meters.

Author

Velhal, Geeta, Pujara, Avani, Muralidhara, V., Bakre, Shashikant, and Velhal, Vaishali

Subjects
*ELECTRIC fault location, *SMART meters, *ELECTRIC power transmission, *ELECTRIC power distribution grids, *ELECTRIC meters, *ELECTRIC substations
Abstract

In the modern electrical grid, accuracy and speed of fault clearance are the major challenges which need to be addressed. This paper covers a case study of fault location techniques in electrical transmission network, using numeric relay and offline fault locator. Healthiness of electrical transmission line is ensured using line signature analyzer. Comparative study of online and offline fault location in electrical transmission network has been carried out and the inferences are drawn. On the basis data available it can be said that the frequency of occurrence of single line to ground fault is maximum (about 75%) among various types of faults. Data at 220 kV and 132 kV substations has been collected and analyzed, keeping focus on single line to ground fault. Architecture of Substation Automation System (SAS) using single communication technology based on IEC 61850-8 and IEC 61850-9 is explained. Proposed architecture consisting of numeric meter with Java Compilation Unit (JCU) and Ethernet switch standardized as per IEC 61850 is demonstrated. The Java source code to send indications to output port of numeric meter is included. [ABSTRACT FROM AUTHOR]

Published
2018

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