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Search Results: 1 - 10 of 324934 matches for " S. Ganapathy "
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Extraction of Method Signatures from Ontology Towards Reusability for the Given System Requirement Specification
S. Sagayaraj,Gopinath Ganapathy
Lecture Notes in Engineering and Computer Science , 2011,
Intelligent Agent-Based Intrusion Detection System Using Enhanced Multiclass SVM
S. Ganapathy,P. Yogesh,A. Kannan
Computational Intelligence and Neuroscience , 2012, DOI: 10.1155/2012/850259
Abstract: Intrusion detection systems were used in the past along with various techniques to detect intrusions in networks effectively. However, most of these systems are able to detect the intruders only with high false alarm rate. In this paper, we propose a new intelligent agent-based intrusion detection model for mobile ad hoc networks using a combination of attribute selection, outlier detection, and enhanced multiclass SVM classification methods. For this purpose, an effective preprocessing technique is proposed that improves the detection accuracy and reduces the processing time. Moreover, two new algorithms, namely, an Intelligent Agent Weighted Distance Outlier Detection algorithm and an Intelligent Agent-based Enhanced Multiclass Support Vector Machine algorithm are proposed for detecting the intruders in a distributed database environment that uses intelligent agents for trust management and coordination in transaction processing. The experimental results of the proposed model show that this system detects anomalies with low false alarm rate and high-detection rate when tested with KDD Cup 99 data set. 1. Introduction Mobile ad hoc networks (MANETs) consist of mobile nodes that work independently without an infrastructure. They are useful in application areas like disaster management emergency and rescue operations where it is not possible to have well-defined infrastructure. MANETs are characterized by its great flexibility. However, MANET’s inherent vulnerability increases their security risks. Though MANETs are dynamic and cooperative in nature, it needs efficient and effective security mechanisms to safeguard the mobile nodes. Intrusion detection and prevention are primary mechanisms to reduce possible intrusions. Intrusion detection using classification algorithms effectively discriminates “normal” behavior from “abnormal” behavior. Therefore, intrusion detection and prevention system can be used as a secondary mechanism of defense in any wireless environment and mobile databases so that it can be a part of the reliable communication in MANETs [1]. Intrusion detection systems (IDS) play a major role in providing security to networks. In this paper, we introduce a new intelligent agent-based intrusion detection model for securing the mobile ad hoc networks. The main function of the proposed intrusion detection system is to monitor the computer system and network in order to find the intrusion activities in the system. In such system, attacks are divided into two categories, namely, host-based attacks and network-based attacks. Hence, IDSs are also
Framework for Implementing Sustainable Practices in SMEs in the United States
Ganapathy S. Natarajan,David A. Wyrick
Lecture Notes in Engineering and Computer Science , 2011,
Experimental Investigation of Performance and Emission Characteristics of Mahua Biodiesel in Diesel Engine
S. Savariraj,T. Ganapathy,C. G. Saravanan
ISRN Renewable Energy , 2011, DOI: 10.5402/2011/405182
In vitro antioxidant activity of Holarrhena antidysenterica Wall. methanolic leaf extract
P. S. Sujan Ganapathy,P. S. Sujan Ganapathy,Y. L. Ramachandra,S. Padmalatha Rai
Journal of Basic and Clinical Pharmacy , 2011,
Abstract: Antioxidative potential of methanolic leaf extract of Holarrhena antidysenterica was evaluated using hydroxyl radical, superoxide anion scavenging and reducing power assays. The antioxidant activity of the methanol extract increased in a concentration-dependent manner. The extract showed significant reactive oxygen species (ROS) scavenging activity in all in vitro antioxidant assays and contained high level of total phenolic content.
Grey Relational Analysis to determine optimum process parameters for Wire Electro Discharge Machining (WEDM).
International Journal of Engineering Science and Technology , 2011,
Abstract: This paper presents an effective approach to optimize process parameters for Wire electro discharge machining (WEDM).WEDM is extensively used in tool and die industries. Precision and intricate machining are the strengths. While machining time and surface quality still remains as major challenges. The main objective of this study is to obtain higher material removal rate (MRR) and lower surface roughness (SR). Ton, T off, Applied current, Gap voltage, Wire tension and wire feed rate are the six control factors taken each at various levels. Since the process has multiple performance characteristics, the grey relational analysis is used. The greyrelational grade normalizes the contradicting performance indices. From eight experiments based on the orthogonal array of L8 the best combination of parameters were found. Compared with Taguchi’s method the proposed method is more scientific. The experimental results confirm that the proposed method in this study effectively improves the machining performance of WEDM process.
Screening of Rice Accessions for Yield and Yield Attributes Contributing to Salinity Tolerance in Coastal Saline Soils of Tamil Nadu, South India
S.K. Natarajan,M. Ganapathy,R. Nagarajan,S. Somasundaram
Asian Journal of Plant Sciences , 2005,
Abstract: A field experiment was conducted in the saline field of Annamalai University, experimental farm, Annamalai Nagar during Kharif season of 2000-2001, to study the screening of rice accessions for growth and yield attributes contributing to salinity tolerance. The experiment was laid out in Randomized Block Design with three replications. Fifteen rice accessions from the International Rice Soil Stress Tolerance Screening Nursery Trial (IRSSTN) of IRRI were used for the study. Based on the grouping, the rice accessions were grouped into High Yielding Tolerant (HYT), High Yielding Susceptible (HYS), Low Yielding Tolerant (LYT) and Low Yielding Susceptible (LYS). The results revealed that the rice accessions of the high yielding and tolerant group recorded a higher value for the yield characters viz., number of productive tillers/hill, number of filled grains/panicle and thousand grain weight in which Rice Acc. No. 12 (IR-60494-2B-18-3-2-3) recorded the highest value for yield characters. The rice accession of the high yielding and tolerant group recorded a higher value for the grain and straw yield of which Rice Acc. No. 12 (IR-60494-2B-18-3-2-3) recorded the highest value for grain and straw yield. Based on the results of the investigations, it clearly indicates the direct effects of growth and yield attributes on the higher yield of rice accessions for salinity tolerance. It appears that the number of productive tillers/hill, number of filled grains/panicle and thousand grain weight had direct influence on the grain yield of rice accessions grouped in high yielding and tolerant category for saline soils.
A single institution experience of combined modality management of extra skeletal Ewings sarcoma
Ramachandran Venkitaraman, Mathew K George, S Ganapathy Ramanan, TG Sagar
World Journal of Surgical Oncology , 2007, DOI: 10.1186/1477-7819-5-3
Abstract: A retrospective review of the clinical features, treatment and outcome of patients with extraskeletal Ewings sarcoma who reported to a single institution between January 1992 – December 2003 is reported.A total of 19 patients with extraskeletal Ewings sarcoma were identified. Of these, 4 patients had metastatic disease at presentation and 15 patients with non-metastatic disease received combined modality treatment with primary combination chemotherapy followed by local treatment with radiotherapy or surgery. Disease free survival and overall survival for patients with non metastatic disease after combined modality treatment were 60% and 30% respectively. The significant predictors for prolonged disease free survival and overall survival were high haemoglobin(p = 0.002), low lactate dehydrogenase (p = 0.028), chemotherapy with Vincristine, Adriamycin, Cyclophosphamide, Ifosfamide and Etoposide regime (p = 0.008) and complete response to chemotherapy (p = 0.001).Aggressive combination chemotherapy followed by complete surgery or radiotherapy to a dose of more than 50 Gy is essential to confer optimal outcome for patients with extraskeletal ewings sarcoma.Ewing's family of tumors arise primarily from bones and rarely are of extraskeletal origin. Considering the rarity and varied presentation of extraskeletal Ewings sarcoma (ESES), no definite recommendation regarding optimal treatment has been defined. The principles of management of extraskeletal Ewings tumors have been extrapolated from experience from treating Ewings sarcoma of bony origin or primitive peripheral neurectodermal tumors (PPNET). Commonly ESES patients are offered combined modality treatment as for Ewing's sarcoma (ES) of the same site and stage, though some studies have suggested that extraosseous primaries may have a poorer prognosis[1]. We are presenting a single institution experience of management of this uncommon tumour along with a review of relevant literature.We conducted a retrospective revie
Communication in Technical Organizations: A Designed Experiment Approach
Ganapathy S. Natarajan,David A. Wyrick,Richard R. Lindeke
Lecture Notes in Engineering and Computer Science , 2010,
Ant System-Corner Insertion Sequence: An Efficient VLSI Hard Module Placer
Advances in Electrical and Computer Engineering , 2013, DOI: 10.4316/aece.2013.01002
Abstract: Placement is important in VLSI physical design as it determines the time-to-market and chip's reliability. In this paper, a new floorplan representation which couples with Ant System, namely Corner Insertion Sequence (CIS) is proposed. Though CIS's search complexity is smaller than the state-of-the-art representation Corner Sequence (CS), CIS adopts a preset boundary on the placement and hence, leading to search bound similar to CS. This enables the previous unutilized corner edges to become viable. Also, the redundancy of CS representation is eliminated in CIS leads to a lower search complexity of CIS. Experimental results on Microelectronics Center of North Carolina (MCNC) hard block benchmark circuits show that the proposed algorithm performs comparably in terms of area yet at least two times faster than CS.
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