Sambhav Jain - Academia.edu (original) (raw)

Papers by Sambhav Jain

Journal of Global Research in Computer Sciences, 2012

In mobile ad hoc networks (MANETs), accurate throughput-constrained Quality of Service (QoS) rout... more In mobile ad hoc networks (MANETs), accurate throughput-constrained Quality of Service (QoS) routing and admission control have proven difficult to achieve, mainly due to node mobility and contention for channel access. QoS related with band width utilization is very interesting because band width is the most critical resource in mobile ad hoc networks. The QoS issue must also be studied with a growing node density. This is because the beauty of attaining wider band width link is highly appreciated when the band width resource is scarce due to congestion and high traffic. In this paper, a comparative analysis of two proactive protocols: Destination Sequence Distance Vector (DSDV) and OLSR (Optimized Link State Routing) is conducted in their traditional best effort routing part. Evaluation of their performance is compared against with band width management metrics. Based on the result of the comparative analysis we develop secure QoS versions of the OLSR protocol. Algorithm is introd...

International Journal of Applied Science and Engineering, 2019

In this study, bitumen was modified with different percentages of SBS polymer and Zycotherm addit... more In this study, bitumen was modified with different percentages of SBS polymer and Zycotherm additive. Effect of SBS modification and Zycotherm additive in the bituminous concrete mixture was evaluated by Marshall Stability test and Indirect tensile strength test. Comparisons were made between different bituminous mixtures prepared by base bitumen, SBS modified bitumen and Zycotherm modified bitumen. SBS dosage in bitumen was kept 3, 5 and 7%. The Zycotherm additive dosage was kept same for all mixes i.e. 0.1%. Two types of aggregate i.e. limestone and riverbed were used for this study. Marshall Stability for 5% SBS modification has shown better results. Indirect tensile strength for the mixture containing 5% SBS has shown maximum tensile strength as compared to other mixes. Limestone aggregate has shown maximum stability and maximum tensile strength as compared to riverbed aggregate. Zycotherm additive has shown no effect on mechanical properties of bituminous concrete mixtures. It ...

INTERNATIONAL JOURNAL OF ELECTRICAL ENGINEERING AND TECHNOLOGY, 2021

In modern times the quantity of on road vehicles is expanding very quickly. Most of the time, it ... more In modern times the quantity of on road vehicles is expanding very quickly. Most of the time, it is important to verify the identity of these vehicles for authorization of the transit regulation, overseeing parking garages. it is hard to check this colossal number of moving vehicles physically. Subsequently, building up a precise automatic license plate recognition model (ALPR) including character recognition is important to ease the issues mentioned above. We have developed a model based on multiple types of license plates from different countries. The dataset of images was trained using Yolov4 which uses CNN architectures. Character recognition was done using the Tesseract OCR after multiple image pre-processing techniques and morphological transformations. The proposed program has obtained an accuracy of 92% in license plate detection and 81% in character recognition.

Bituminous mixtures are used as wearing and base course layers in a pavement structure and the pe... more Bituminous mixtures are used as wearing and base course layers in a pavement structure and the performance of these mixes can be defined by its resistance against deformation, fatigue cracking, damage due to moisture and overall stiffness of the mixture. Rutting is one of the most important factors that lead to permanent failure of flexible pavements. The stone matrix asphalt (SMA) mixture is known to be highly rut resistant than other conventional wearing courses such as bituminous concrete. This paper describes the experimental examination conducted on stone matrix asphalt (SMA) mixes prepared using VG 30 grade of bitumen and different types of fibers such as cellulose fiber, coconut fiber, glass fiber and jute fiber as their additives. Results were then collated with SMA mixes prepared with different types of fibers. Investigation work comprises SMA mix design, static indirect tensile strength (ITS) and drain down test. From the test results, it was perceived that SMA with cellul...

Aims. To evaluate the success rate and related factors of endoscopic ultrasound guided-biliary dr... more Aims. To evaluate the success rate and related factors of endoscopic ultrasound guided-biliary drainage (EUS-BD). Material and Methods. We conducted a retrospective study among 24 patients with malignant biliary obstruction who underwent EUS-BD after failed ERCP from January 2015 to December 2016 in a tertiary health center. The bilirubin levels before and after the procedure were used to define the clinical success rate, while the stent deployment was used to define the technical success rate. We placed either transluminal biliary stents or transpapillary biliary stents. Results. Among 24 patients, choledochoduodenostomy technique was conducted in 23 patients (95.8%) and hepaticogastrostomy technique in 1 patient (4.2%). Transluminal stent placement was conducted in 23 patients, while transpapillary stent placement was conducted in 1 patient. The clinical success rate was 78.2% (18) in choledochoduodenostomy route and 100% (1) in hepaticogastrostomy route. EUS-BD was 2.37 times and 2.11 times more likely to be successful in reducing the bilirubin level in patients with tumor of the head of pancreas and periampullary tumor, respectively, but not in cholangiocarcinoma. Conclusions. EUS-BD is an effective and efficient procedure to achieve biliary drainage among patients with malignant biliary obstruction after ERCP failure.

BACKGROUND: Pseudomonas aeruginosa is one of the most common causes of nosocomial infections. Car... more BACKGROUND: Pseudomonas aeruginosa is one of the most common causes of nosocomial infections. Carbapenems are widely used for the treatment of this microorganism, but nowadays, increasing number of carbapenem-resistant P. aeruginosa (CRPA) isolates are increasing which further lead to treatment failure due to associated multidrug resistance. AIM: The present study was done to determine the prevalence of New Delhi metallo-β-lactamase-1 (bla NDM-1) in P. aeruginosa in hospitalized patients in a tertiary care setup. SETTINGS AND DESIGN: The study was conducted in the department of microbiology with the tertiary care hospital settings. It was a prospective cross-sectional observational study conducted from June 2014 to December 2014. MATERIALS AND METHODS: Antibiotic susceptibility test was performed using Kirby–Bauer disc diffusion method for screening of the isolates. P. aeruginosa isolates with the zone diameter of carbapenems ≤18 mm were considered as carbapenemase producers. Metall...

SIGGRAPH Asia 2019 XR, 2019

M-Hair is a novel method for providing tactile feedback by stimulating only body hair. By applyin... more M-Hair is a novel method for providing tactile feedback by stimulating only body hair. By applying passive magnetic materials to the body hair, these ones responsive to external magnetic forces/fields, creating a new opportunity for interactions, such as enriching media experiences, emotional touch, or even relieving pain. CCS CONCEPTS • Hardware → Haptic devices; • Human-centered computing → Virtual reality.

Proceedings of the 32nd Annual ACM Symposium on User Interface Software and Technology, 2019

Working principle c) Evaluation a) Hair augmentation + Figure 1. a) Forearm Hair of participant a... more Working principle c) Evaluation a) Hair augmentation + Figure 1. a) Forearm Hair of participant after applying passive magnetic cosmetics. b) The hairs are attracted by the magnetic felds providing tactile feedback. c) Setup of the evaluation with a CNC engraver (wooden enclosure not shown

Computer Networks and Inventive Communication Technologies, 2021

Pharmacognosy Communications, 2020

Introduction: Azadirachta indica is commonly known as Neem, is found abundantly in India. This pl... more Introduction: Azadirachta indica is commonly known as Neem, is found abundantly in India. This plant is used in the treatment of infections, pain and wounds. Methods: The aim of present study to investigate in silico molecular docking study used for three phytoconstituents β-sitosterol(22,23-Dihydrostigmasterol, Stigmast-5-en-3-ol, β-Sitosterin), isomeldenin and nimbandiol from Azadirachtaindica to identify whether these compounds interact with the COX-2 and NOs. The structure of neem constituents were downloaded from Pubchem and structure of enzymes/ proteins were obtained from protein data bank. Results: Among all the compounds β-sitosterol and nimbandiol showed best docking score. Conclusion: Further cell culture-based studies might ensure the interaction of these constituents with COX-2 and NOs.

ABSTRACTAlthough the existing flu vaccines elicit strong antigen-specific antibody responses, the... more ABSTRACTAlthough the existing flu vaccines elicit strong antigen-specific antibody responses, they fail to provide effective, long term protection – partly due to the absence of robust cellular memory immunity. We hypothesized that co-administration of combination adjuvants, mirroring the flu-virus related innate signaling pathways, could elicit strong cellular immunity. Here, we show that the small molecule adjuvant R848 and the RNA adjuvant PUUC, targeting endosomal TLR7s and cytoplasmic RLRs respectively, when delivered together in polymer nanoparticles (NP), elicits a broadened immune responses in mouse bone marrow-derived dendritic cells (mBMDCs) and a synergistic response in both mouse and human plasmacytoid dendritic cells (pDCs). In mBMDCs, NP-R848-PUUC induced both NF-κB and interferon signaling. Interferon responses to co-delivered R848 and PUUC were additive in human peripheral blood mononuclear cells (PBMCs) and synergistic in human FLT3-differentiated mBMDCs and CAL-1 p...

Systems processing on natural language text encounters fatal problems due to long and complex sen... more Systems processing on natural language text encounters fatal problems due to long and complex sentences. Their performance degrades as the complexity of the sentence increases. This paper addresses the task of simplifying complex sentences in Hindi into multiple simple sentences, using a rule based approach. Our approach utilizes two linguistic resources viz. verb demand frames and conjuncts' list. We performed automatic as well as human evaluation of our system.

Proceedings of the 4th Workshop on Cognitive Aspects of the Lexicon (CogALex), 2014

This paper describes the system submitted by the IIIT-H team for the CogALex-2014 shared task on ... more This paper describes the system submitted by the IIIT-H team for the CogALex-2014 shared task on multiword association. The task involves generating a ranked list of responses to a set of stimulus words. The two-stage approach combines the strength of neural network based word embeddings and frequency based association measures. The system achieves an accuracy of 34.9% over the test set.

JOURNAL OF CLINICAL AND DIAGNOSTIC RESEARCH, 2015

Smile plays an important role in self-perception of an individual and is an important element of ... more Smile plays an important role in self-perception of an individual and is an important element of facial expression and physical attractiveness. A bright smile is associated with intelligence, empathy, extroversion and creates its own perception towards facial attractiveness [1].

Lecture Notes in Computer Science, 2015

We propose an approach for Parse Quality Estimation based on the dynamic computation of an entrop... more We propose an approach for Parse Quality Estimation based on the dynamic computation of an entropy-based confusion score for directed arcs and for joint prediction of directed arcs and their dependency labels, in a typed dependency parsing framework. This score accompanies a parsed output and aims to present an exhaustive picture of the parse quality, detailed down to each arc of the parse tree. The methodology explores the confusion encountered by the oracle of a transition-based data-driven dependency parser. We support our hypothesis by analytically illustrating, for 18 languages, that the arcs with high confusion scores are notably the predominant parsing errors.

In this paper we propose an approach to dynamically compute a confusion score for dependency arc ... more In this paper we propose an approach to dynamically compute a confusion score for dependency arc labels, in typed dependency parsing framework. This score accompanies the parsed output and aims to administer an informed account of parse correctness, detailed down to each edge of the parse. The methodology explores the confusion encountered by the oracle of a data driven parser, in predicting an arc label. We support our hypothesis by empirically illustrating, for 20 languages, that the labels with a high confusion score are notably the predominant parsing errors.

In this paper, we discuss our efforts to annotate nominals in the Hindi Treebank with the semanti... more In this paper, we discuss our efforts to annotate nominals in the Hindi Treebank with the semantic property of animacy. Although the treebank already encodes lexical information at a number of levels such as morph and part of speech, the addition of animacy information seems promising given its relevance to varied linguistic phenomena. The suggestion is based on the theoretical and computational analysis of the property of animacy in the context of anaphora resolution, syntactic parsing, verb classification and argument differentiation.

In this paper, we propose a method for automatic clause boundary annotation in the Hindi Dependen... more In this paper, we propose a method for automatic clause boundary annotation in the Hindi Dependency Treebank. We show that the clausal information implicitly encoded in a dependency structure can be made explicit with no or less human intervention. We exercised the proposed approach on 16,000 sentences of Hindi Dependency Treebank. Our approach gives an accuracy of 94.44% for clause boundary identification evaluated over 238 clauses. The resultant corpus has varied usages and can be utilized for developing a statistical clause boundary identifier.

In this paper, we present our efforts towards incorporating external knowledge from Hindi WordNet... more In this paper, we present our efforts towards incorporating external knowledge from Hindi WordNet to aid dependency parsing. We conduct parsing experiments on Hindi, an Indo-Aryan language, utilizing the information from concept ontologies available in Hindi WordNet to complement the morpho-syntactic information already available. The work is driven by the insight that concept ontologies capture a specific real world aspect of lexical items, which is quite distinct and unlikely to be deduced from morpho-syntactic information such as morph, POS-tag and chunk. This complementing information is encoded as an additional feature for data driven parsing and experiments are conducted. We perform experiments over datasets of different sizes. We achieve an improvement of 1.1% (LAS) when training on 1,000 sentences and 0.2% (LAS) on 13,371 sentences over the baseline. The improvements are statistically significant at p<0.01. The higher improvements on 1,000 sentences suggest that the semantic information could address the data sparsity problem.