S
Sankaran Narayanan
Researcher at Columbia University
Publications - 5
Citations - 259
Sankaran Narayanan is an academic researcher from Columbia University. The author has contributed to research in topics: The Internet & Voice over IP. The author has an hindex of 3, co-authored 4 publications receiving 251 citations.
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CINEMA: Columbia InterNet Extensible Multimedia Architecture
TL;DR: The architecture and implementation of CINEMA (Columbia InterNet Extensible Multimedia Architecture) is described, intended to replace the departmental PBX (telephone switch), and common inter-operability problems between the PBX and the gateway are discussed.
SIPstone: Benchmarking SIP Server Performance
TL;DR: This draft proposes an initial simple set of metrics for evaluating and benchmarking the performance of SIP proxy, redirect and registrar servers, and the benchmark SIPstone-A expresses a weighted average of these metrics.
Journal ArticleDOI
Integrating Internet telephony services
TL;DR: A SIP-based software suite called the Columbia Internet extensible multimedia architecture (Cinema) is implemented, which is installed and integrated with the existing private branch exchange (PBX) infrastructure in the computer science department at Columbia University.
Journal ArticleDOI
HER2-enriched subtype and novel molecular subgroups drive aromatase inhibitor resistance and an increased risk of relapse in early ER+/HER2+ breast cancer
Milana Bergamino,Elena Lopez-Knowles,Gabriele Morani,Holly Tovey,Lucy Kilburn,Eugene Schuster,Anastasia Alataki,Margaret Hills,Huiyan Xiao,Christopher Holcombe,Anthony Skene,John F.R. Robertson,Ian E. Smith,Judith M Bliss,Mitch Dowsett,Maggie C.U. Cheang,Andrew Evans,A. B. S. Ball,A. Johri,Ali Nejim,Alison L Jones,A P Corder,A.L. Thorne,Ambika Anand,Amitabha Chakrabarti,Anne Robinson,Anupama Modi,Ashraf Patel,Ashutosh Kothari,Brendan McFall,C. Mortimer,Caroline Sunyong Lee,Charlie Chan,C. Abson,C. P. Hinton,Ciaran Hollywood,Claire Murphy,Clare Crowley,C. Harding-Mackean,Clive Griffith,Conrad R. Lewanski,Daniel Rea,David Hwang,D. Crawford,Dinesh Thekkinkattil,Douglas Ferguson,Douglas Adamson,Duncan Wheatley,D. Ravichandran,Ede Lakshmi Suresh Babu,Elaine Hyett,F. Ashkanani,Fiona Hoar,F.S. Kenny,G. V. Dyke,G. Sparrow,Gilbert,Giles H Cunnick,Hafiz Algurafi,Helen Sweetland,Highes-Davies Prof,H Hamed,Ian Laidlaw,Ilyas Khattak,Jacqueline Newby,Jacqueline Rees-Lee,Jalal Kokan,J.M Barrett,Jay Naik,Jayant S. Vaidya,Jennifer Forrest,Jitendra Pal Singh Parmar,Jocelyn Adams,John N. Fox,Jonathan Roberts,Jonathan Dawson,D. Doughty,Jull Donnelly,Kathleen M. Dunn,Kian-Keong Chin,Kieran Horgan,K. Thakur,Ludger Barthelmes,Lynda Wyld,Madhumita Bhattacharyya,Maher Hadaki,M. Koteswara Kishore,M Ornstein,Maria Bramley,M. Bews-Hair,Marina Parton,Mark Sibbering,M. Kissin,Mark Churn,Martin S. Hogg,Mary Quigley,Matthew J Hatton,Matthew C Winter,MO Adelekan,Mike Shere,M. Carr,Michael Williams,Mohammed Absar,Muhammad Mujahid Sharif,Muireann Kelleher,Nawaz Walji,Nicholas Williams,N. Gallegos,Nigel J Bundred,Olivia Hatcher,Perric Crellin,Peter Crane,Peter Donnelly,P.J. Kneeshaw,Philip Walker,Prakash Sinha,Pud Bhaskar,Racheal Soulsby,R Todd,Raghavan Vidya,Rakesh K. Mehra,Ramachandra Prasad,Ramsey I. Cutress,Ravi Prakash Sharma,Rebecca Roylance,R Goranova,Reem Salman,Riccardo Bonom,Richard C. Johnson,Richard Sutton,Richard Linforth,Robert E. Coleman,Robert Grieve,Robert Leonard,Robert Reichert,R. Kennedy,Roshan Agarwal,Rozenn Allerton,RJ Burcombe,Ruth J. Davis,Sankaran Narayanan,S. Chandrasekharan,Sarah Vesty,Seema Seetharam,Serena Ledwidge,S. Iqbal,Shamaela Wahee,Shobha Silva,Simon W. Pain,Simon D.H. Holt,Simon Patrick Thomson,Simon A. Smith,S. Ellenbogen,S. Laws,Stephen Chan,Stephen R. D. Johnston,Steve Holt,Steven Thrush,Stuart McIntosh,Sumohan Chatterjee,Susan Cleator,Tamoor Usman,Tayo Johnson,Tibor Kovács,Tracey Irvine,Urmila Barthkur,V Pope,V. Brown,V. M. Muralikrishna,Walid A. Samra,William Ernest Maxwell,Zoe Winters +171 more
TL;DR: In this article , the authors identify biomarkers of response to 2 weeks' presurgical AI treatment in ER+/HER2+ breast cancers (BCs) and identify new molecular subgroups (MS) associated with differential response to AI.
A Diameter accounting application for the Session Initiation Protocol
TL;DR: This memo defines a SIP Diameter accounting application that specifies how Diameter servers can be used with SIP servers to provide accounting and is expected to be compatible with existing RADIUS servers.