Sudip Sanyal

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Previous Web access authentication systems often use either the Web or the Mobile channel individually to confirm the claimed identity of the remote user. This paper proposes a new protocol using multifactor authentication system that is both secure and highly usable. It uses a novel approach based on Transaction Identification Code and SMS to enforce extra(More)
A Mobile Adhoc Network (MANET) is a cooperative engagement of a collection of mobile nodes without any centralized access point. The underlying concept of coordination among nodes in a cooperative MANET has induced in them a vulnerability to attacks due to issues like dynamically changing network topology, cooperative algorithms and lack of centralized(More)
The spleen is an unusual site of metastasis from an esophageal malignancy. We herein report the case of a 25-year-old woman who underwent a transhiatal esophagectomy and adjuvant radiotherapy and chemotherapy for squamous cell carcinoma of the lower third of the esophagus with pN1 lymph node metastasis. Fifteen months following surgery she was found to have(More)
Abstract Stub This paper talks about a new approach to recognize named entities for Indian languages. Phonetic matching technique is used to match the strings of different languages on the basis of their similar sounding property. We have tested our system with a comparable corpus of English and Hindi language data. This approach is language independent and(More)
BACKGROUND The mechanism and extent of major bile duct injuries following laparoscopic cholecystectomy differ from those of open cholecystectomy. METHODS To identify differences in the demographic profile, timing of injury detection, management strategies and outcome, we undertook a retrospective review and analysis of our experience with 55 major bile(More)
This paper presents an unsupervised approach for disambiguating between various senses of a word to select the most appropriate sense, based on the context in the text. We have defined a Probabilistic Latent Semantic Analysis (PLSA) based Word Sense Disambiguation (WSD) system in which sense tagged annotated data is not required for training and the system(More)
BACKGROUND Pancreatic anastomotic leaks are a major cause of morbidity and mortality following pancreaticoduodenectomy, and no single technique of reconstruction has shown to be superior. The aim of this study was to review the experience of single loop versus isolated Roux loop pancreaticojejunostomy in a series of patients undergoing pancreatic head(More)