For context based surfing of World Wide Web in a systematic and automatic manner, a web crawler is required. The World Wide Web consists interlinked documents and resources that are easily crawled by general web crawler, known as surface web crawler. But for crawling the hidden web data, in which the data is hidden behind the html forms requires special type of crawler, known as hidden web crawler. For efficient crawling of hidden web data, the discovery of relevant and proper html forms is very important step. For this purpose a technique for domain specific hidden web crawler is proposed in this paper. The proposed technique is based on the domain specific crawling of World Wide Web. In this approach, a link is followed in a step by step manner, which results in a large source of hidden web databases. Experiential results verify that the proposed approach is quite effective in crawling the hidden web data contents.
{"title":"A QIIIEP based domain specific hidden web crawler","authors":"D. Sharma, A. Sharma","doi":"10.1145/1980022.1980073","DOIUrl":"https://doi.org/10.1145/1980022.1980073","url":null,"abstract":"For context based surfing of World Wide Web in a systematic and automatic manner, a web crawler is required. The World Wide Web consists interlinked documents and resources that are easily crawled by general web crawler, known as surface web crawler. But for crawling the hidden web data, in which the data is hidden behind the html forms requires special type of crawler, known as hidden web crawler. For efficient crawling of hidden web data, the discovery of relevant and proper html forms is very important step. For this purpose a technique for domain specific hidden web crawler is proposed in this paper. The proposed technique is based on the domain specific crawling of World Wide Web. In this approach, a link is followed in a step by step manner, which results in a large source of hidden web databases. Experiential results verify that the proposed approach is quite effective in crawling the hidden web data contents.","PeriodicalId":197580,"journal":{"name":"International Conference & Workshop on Emerging Trends in Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131755776","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Munir B. Sayyad, Nusrat J. Ansari, S. Burli, Harsh Shah, A. Khatanhar
The IP Multimedia Subsystem (IMS) defines a network that has an all-IP core. This enables it to provide convergence across multimedia applications. Legacy networks like PSTN, PLMN are being rapidly phased out and an all-IP based flat network is close to realization. Nevertheless, legacy networks stil form an important part of Telecommunication domain. The IP Multimedia Subsystem supports such legacy networks and provides enhanced data and voice services based on an IP network. It has been conceived for telecom operators willing to provide advanced services on top of mobile and fixed networks. It aims to achieve the converged communications paradigm by merging the Internet and Telecommunication domains. IMS not only offers rich multimedia content along with voice and data services but also has provisions for service integration to provide a seamless and user-centric experience. Session Initiation Protocol (SIP) has been standardized as the signalling protocol tobe used in the IMS. SIP allows for ubiquitous access to many useful Internet services as well as several new and Innovative ones such as Presence, Push-to-Talk etc. This paper is a brief review of IMS and its core components. It also presents a high level overview of the IMS services and the security aspect in IMS.
{"title":"Review of IP multimedia subsystem","authors":"Munir B. Sayyad, Nusrat J. Ansari, S. Burli, Harsh Shah, A. Khatanhar","doi":"10.1145/1980022.1980222","DOIUrl":"https://doi.org/10.1145/1980022.1980222","url":null,"abstract":"The IP Multimedia Subsystem (IMS) defines a network that has an all-IP core. This enables it to provide convergence across multimedia applications. Legacy networks like PSTN, PLMN are being rapidly phased out and an all-IP based flat network is close to realization. Nevertheless, legacy networks stil form an important part of Telecommunication domain. The IP Multimedia Subsystem supports such legacy networks and provides enhanced data and voice services based on an IP network. It has been conceived for telecom operators willing to provide advanced services on top of mobile and fixed networks. It aims to achieve the converged communications paradigm by merging the Internet and Telecommunication domains. IMS not only offers rich multimedia content along with voice and data services but also has provisions for service integration to provide a seamless and user-centric experience.\u0000 Session Initiation Protocol (SIP) has been standardized as the signalling protocol tobe used in the IMS. SIP allows for ubiquitous access to many useful Internet services as well as several new and Innovative ones such as Presence, Push-to-Talk etc.\u0000 This paper is a brief review of IMS and its core components. It also presents a high level overview of the IMS services and the security aspect in IMS.","PeriodicalId":197580,"journal":{"name":"International Conference & Workshop on Emerging Trends in Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124551370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The proposed system showed high hiding rates with reasonable imperceptibility compared to other steganographic systems, DCT and better audio quality. The results shown gives detail comparison between DWT and DCT. In this paper a novel method for digital audio Steganography with security i. e. cryptography is presented where covert data is embedded into the coefficients of host audio (cover signal) in integer wavelet domain using quantization to reduce embedding error. Performance analysis based on quantization and wavelet decomposition is explained in result section. The characteristics of this method are imperceptibility, robustness, large payload, high audio quality and full recovery.
{"title":"Digital audio steganography using DWT with reduced embedding error and better extraction compared to DCT","authors":"S. Nehete, S. Sawarkar, M. Sohani","doi":"10.1145/1980022.1980059","DOIUrl":"https://doi.org/10.1145/1980022.1980059","url":null,"abstract":"The proposed system showed high hiding rates with reasonable imperceptibility compared to other steganographic systems, DCT and better audio quality. The results shown gives detail comparison between DWT and DCT. In this paper a novel method for digital audio Steganography with security i. e. cryptography is presented where covert data is embedded into the coefficients of host audio (cover signal) in integer wavelet domain using quantization to reduce embedding error. Performance analysis based on quantization and wavelet decomposition is explained in result section. The characteristics of this method are imperceptibility, robustness, large payload, high audio quality and full recovery.","PeriodicalId":197580,"journal":{"name":"International Conference & Workshop on Emerging Trends in Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114452376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper presents Y parameter analysis for optically gated MOSFET at RF frequency. Simulation is done using MATLAB and analysis for Y parameter is done under dark and illuminated condition for varying optical power. It has been seen that device transconductance is highly influenced by optical illumination even for small optical power. Optical effects are mainly due to lowering of surface potential in presence of illumination which is termed as photon induced barrier lowering. The result in dark condition are compared with reported results to show validity of proposed model. The device presented shows good improvement in tranconductance at very small optical power indicating the device as prospective candidate for circuit design at RF.
{"title":"Optically controlled transconductance amplifier","authors":"B. K. Mishra, P. Jain, S. C. Patil, G. Phade","doi":"10.1145/1980022.1980266","DOIUrl":"https://doi.org/10.1145/1980022.1980266","url":null,"abstract":"This paper presents Y parameter analysis for optically gated MOSFET at RF frequency. Simulation is done using MATLAB and analysis for Y parameter is done under dark and illuminated condition for varying optical power. It has been seen that device transconductance is highly influenced by optical illumination even for small optical power. Optical effects are mainly due to lowering of surface potential in presence of illumination which is termed as photon induced barrier lowering. The result in dark condition are compared with reported results to show validity of proposed model. The device presented shows good improvement in tranconductance at very small optical power indicating the device as prospective candidate for circuit design at RF.","PeriodicalId":197580,"journal":{"name":"International Conference & Workshop on Emerging Trends in Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114994151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this paper, we describe the need and development of Ontologies. We also show the creation of an Ontology in Health Domain. In a developing country like India, due to mass population and scarcity of services, health care has taken a back. People often restore to the Internet for gathering information regarding a particular diseases or a health care service. They often do not find the information of their choice as the data is often available in a scattered form. Our Ontology can be used to extract such information in a more effective and efficient manner.
{"title":"Ontology development for health care in India","authors":"Iti Mathur, S. Mathur, Nisheeth Joshi","doi":"10.1145/1980022.1980176","DOIUrl":"https://doi.org/10.1145/1980022.1980176","url":null,"abstract":"In this paper, we describe the need and development of Ontologies. We also show the creation of an Ontology in Health Domain. In a developing country like India, due to mass population and scarcity of services, health care has taken a back. People often restore to the Internet for gathering information regarding a particular diseases or a health care service. They often do not find the information of their choice as the data is often available in a scattered form. Our Ontology can be used to extract such information in a more effective and efficient manner.","PeriodicalId":197580,"journal":{"name":"International Conference & Workshop on Emerging Trends in Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116340432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper describes alternate way to generate dual band using loop within loop technique to confine the size of array. Simulated results show that antenna is tuned to 400 MHz with return loss of -13 dB and at 615.5 MHz with return loss of -31.6 dB. Lower band is of 10 MHz and upper one is of 14 MHz Antenna is fed with long feed line so is compatible with 50 Ohm line.
{"title":"Compact size dual-band loop array antenna","authors":"Malhar Lakdawala, Kunal Jain, Hardik Tolia","doi":"10.1145/1980022.1980390","DOIUrl":"https://doi.org/10.1145/1980022.1980390","url":null,"abstract":"This paper describes alternate way to generate dual band using loop within loop technique to confine the size of array. Simulated results show that antenna is tuned to 400 MHz with return loss of -13 dB and at 615.5 MHz with return loss of -31.6 dB. Lower band is of 10 MHz and upper one is of 14 MHz Antenna is fed with long feed line so is compatible with 50 Ohm line.","PeriodicalId":197580,"journal":{"name":"International Conference & Workshop on Emerging Trends in Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124017911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Internet users access billions of web pages online using search engines. Searching for a specific person is one of the most popular search queries. However, when a person name is queried, the returned result often contains webpage's related to several distinct namesakes who have the queried name. The task of disambiguating and finding the webpage's related to the specific person of interest is left to the user. Many Web People Search approaches have been developed recently that attempt to automate this disambiguation process. Nevertheless, the disambiguation quality of these techniques leaves a major room for improvement. The project work also deploys the usage of the Web crawler, which can be used for crawling through a whole site on the Inter/Intranet.
互联网用户使用搜索引擎在线访问数十亿个网页。搜索特定的人是最流行的搜索查询之一。但是，当查询人名时，返回的结果通常包含与具有所查询姓名的几个不同的同名相关的网页。消除歧义和找到与特定感兴趣的人相关的网页的任务留给了用户。最近已经开发了许多Web People Search方法，试图将这种消歧过程自动化。然而，这些技术的消歧质量仍有很大的改进空间。项目工作还部署了Web爬虫的使用，它可以用于在Inter/Intranet上爬行整个站点。
{"title":"Web people search (WEPS) using semantic crawler: an overview","authors":"Harshali P. Patil, S. Govilkar","doi":"10.1145/1980022.1980348","DOIUrl":"https://doi.org/10.1145/1980022.1980348","url":null,"abstract":"Internet users access billions of web pages online using search engines. Searching for a specific person is one of the most popular search queries. However, when a person name is queried, the returned result often contains webpage's related to several distinct namesakes who have the queried name. The task of disambiguating and finding the webpage's related to the specific person of interest is left to the user. Many Web People Search approaches have been developed recently that attempt to automate this disambiguation process. Nevertheless, the disambiguation quality of these techniques leaves a major room for improvement. The project work also deploys the usage of the Web crawler, which can be used for crawling through a whole site on the Inter/Intranet.","PeriodicalId":197580,"journal":{"name":"International Conference & Workshop on Emerging Trends in Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124505736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Electromagnetic shielding for an electronic circuit is of prime concern in its design. With exponentially growing technology of VLSI; the circuit size is drastically reduced. Developing an electromagnetic shield for such a reduced size of electronic circuits requires ultra thin conductor shields while achieving the required shielding performance. Single conductor layer shield has thickness limitations to achieve required shielding effectiveness. Multilayered conductor electromagnetic shields are developed in this work so as to achieve the required performance of shielding effectiveness at lower thickness values. Mathematical analysis is carried out for a multilayered conductor electromagnetic shield. Conducting materials like copper, aluminum, silver, steel, nickel etc are considered for different layers of the shield at different thicknesses. Estimations for shielding effectiveness of a three layered (two layers of micro thin conductor films on a base conductor) conductor electromagnetic shield were carried out in different frequency ranges for various combinations of conductor layer materials. The combinations of conductor materials and their thicknesses were optimized to yield maximized performance at a reduced layer thickness.
{"title":"Development of a multilayer conductor electromagnetic shield for optimum shielding performance","authors":"C. D. Raj, P. H. Rao, D. V. Saradhi","doi":"10.1145/1980022.1980270","DOIUrl":"https://doi.org/10.1145/1980022.1980270","url":null,"abstract":"Electromagnetic shielding for an electronic circuit is of prime concern in its design. With exponentially growing technology of VLSI; the circuit size is drastically reduced. Developing an electromagnetic shield for such a reduced size of electronic circuits requires ultra thin conductor shields while achieving the required shielding performance. Single conductor layer shield has thickness limitations to achieve required shielding effectiveness. Multilayered conductor electromagnetic shields are developed in this work so as to achieve the required performance of shielding effectiveness at lower thickness values. Mathematical analysis is carried out for a multilayered conductor electromagnetic shield. Conducting materials like copper, aluminum, silver, steel, nickel etc are considered for different layers of the shield at different thicknesses. Estimations for shielding effectiveness of a three layered (two layers of micro thin conductor films on a base conductor) conductor electromagnetic shield were carried out in different frequency ranges for various combinations of conductor layer materials. The combinations of conductor materials and their thicknesses were optimized to yield maximized performance at a reduced layer thickness.","PeriodicalId":197580,"journal":{"name":"International Conference & Workshop on Emerging Trends in Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125975996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Method of simulating photonic crystal structure and effect of physical parameters on the band structure produced by photonic crystal is simulated. A way to overcome difficulties of fabricating photonic crystal structure of smaller dimensions is suggested.
{"title":"Effect of physical parameters of material on band structure of photonic crystal","authors":"N. Siddiqui, N. Kant","doi":"10.1145/1980022.1980231","DOIUrl":"https://doi.org/10.1145/1980022.1980231","url":null,"abstract":"Method of simulating photonic crystal structure and effect of physical parameters on the band structure produced by photonic crystal is simulated. A way to overcome difficulties of fabricating photonic crystal structure of smaller dimensions is suggested.","PeriodicalId":197580,"journal":{"name":"International Conference & Workshop on Emerging Trends in Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124661907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
With the entry of 3G services, video based applications like live video streaming, gaming applications, video telephony are going to be in great demand. The data speed is limited in Mobile applications as the bandwidth available is a limited resource. The demand for video streaming is expected to grow in multi folds in future and speed is a critical issue in video streaming. Techniques that reduce the video bit rate are the best way to have a smooth video streaming for a given bandwidth. The mobile equipment screen displays are usually small in size, this size can hence be exploited to have a certain level of compromise with video resolution and by deploying good video compression techniques, the bit rate can be reduced to suit the mobile based applications. Improved video compression is an example of better spectral efficiency (getting the most out of limited bandwidth), which is what makes 3G cellular technology more advanced than its predecessors.
{"title":"Efficient low bit rate video compression technique for mobile applications","authors":"P. Waingankar, G. S. Hayagreev","doi":"10.1145/1980022.1980045","DOIUrl":"https://doi.org/10.1145/1980022.1980045","url":null,"abstract":"With the entry of 3G services, video based applications like live video streaming, gaming applications, video telephony are going to be in great demand. The data speed is limited in Mobile applications as the bandwidth available is a limited resource. The demand for video streaming is expected to grow in multi folds in future and speed is a critical issue in video streaming. Techniques that reduce the video bit rate are the best way to have a smooth video streaming for a given bandwidth. The mobile equipment screen displays are usually small in size, this size can hence be exploited to have a certain level of compromise with video resolution and by deploying good video compression techniques, the bit rate can be reduced to suit the mobile based applications. Improved video compression is an example of better spectral efficiency (getting the most out of limited bandwidth), which is what makes 3G cellular technology more advanced than its predecessors.","PeriodicalId":197580,"journal":{"name":"International Conference & Workshop on Emerging Trends in Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124763560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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