{"title":"Lexical normalization model for noisy SMS text","authors":"Greety Jose, Nisha S. Raj","doi":"10.1109/COMPSC.2014.7032621","DOIUrl":"https://doi.org/10.1109/COMPSC.2014.7032621","url":null,"abstract":"In day to day life, digital mediated interactions and communications being an important constituent. The expeditious growth of electronic communications such as E-mails, micro blogs, SMS and chats etc has fabricated extensively noisy forms of text. It predominantly in young urbanités. The tremendous growth of noises in text are due to a variety of factors, such as the small number of characters allowed per text messages (160 characters is allowed per SMS and 140 characters allowed per tweets), inventing new abbreviations, using non standard orthographic forms, phonetic substitution etc. In this paper we introduce a lexical normalization model for cleaning the noisy texts. The normalization is based on the channelized database. The model will capture the user interaction for improving the model accuracy. Precursory evaluation shows that the channel model will normalize the noisy word to their standard peer with 97.5 % accuracy.","PeriodicalId":388270,"journal":{"name":"2014 First International Conference on Computational Systems and Communications (ICCSC)","volume":"121 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124938448","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}
{"title":"Tapered slotted Vivaldi antenna design using Fourier series approach for UWB applications","authors":"R. Anu, S. S. Kumar","doi":"10.1109/COMPSC.2014.7032611","DOIUrl":"https://doi.org/10.1109/COMPSC.2014.7032611","url":null,"abstract":"Antenna designed for ultra wide band (UWB) applications should offer a wider bandwidth with minimum distortion of pulses. One such antenna which meets these requirements is the Vivaldi antenna. In a conventional Vivaldi antenna the radiating flare is restricted to take an exponential profile. This paper presents the design of slot loaded Vivaldi antenna, using Fourier series approach. Here the geometry of the profile is not restricted and takes an optimized shape, to meet the objective of maximum gain subject to minimum reflection coefficient (Su). Antenna performance obtained from simulations and hardware prototype measurements shows good agreement, which verifies the proposed design concepts.","PeriodicalId":388270,"journal":{"name":"2014 First International Conference on Computational Systems and Communications (ICCSC)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131569282","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}
{"title":"A 7-bit 500-MHz flash ADC","authors":"A. Jayakumar, K. Vishnu","doi":"10.1109/COMPSC.2014.7032624","DOIUrl":"https://doi.org/10.1109/COMPSC.2014.7032624","url":null,"abstract":"This paper describes the systematic design of a high speed and high resolution CMOS Flash Analog-To-Digital Converter. A 7-bit flash ADC is implemented in cadence environment using gpdk90-nm CMOS technology with a 1.2-V analog supply voltage. The converter achieves a signal-to-(noise + distortion) ratio of 39.3574dB and signal-to-spurious-free-dynamic-range of 40.7547dB with a sampling rate of 500MHz.","PeriodicalId":388270,"journal":{"name":"2014 First International Conference on Computational Systems and Communications (ICCSC)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129342893","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}
{"title":"Analysis of vibration and acoustic sensors for machine health monitoring and its wireless implementation for low cost space applications","authors":"L. Swathy, L. Abraham","doi":"10.1109/COMPSC.2014.7032625","DOIUrl":"https://doi.org/10.1109/COMPSC.2014.7032625","url":null,"abstract":"Vibrations produced by machinery are vital indicators of machine health. Vibration analysis is used as a tool to determine a machine's condition and the specific cause and location of problems, expediting repairs and minimizing costs. Machinery monitoring programs record a machine's vibration history. Monitoring vibration levels over time allows prediction of problems before serious damage can occur. Acoustic signal and vibration are correlated as pressure variations due to vibration create acoustic signals. The current trend of spacecraft design is to use complex and lightweight space structures to achieve increased functionality at a reduced launch cost. The goal of this research is to analyse output signals from suitable MEMS vibration as well as acoustic sensor ICs and to compare them with piezoelectric sensors. The study also aims in wireless monitoring of vibration as well as acoustic signals from rotating mechanical structures. MEMS sensors are low cost high resolution sensors with promising applications in low cost space applications such as Sounding rockets, Nano satellites and other terrestrial applications.","PeriodicalId":388270,"journal":{"name":"2014 First International Conference on Computational Systems and Communications (ICCSC)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127445932","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}
{"title":"An efficient VLSI implementation of AES encryption using ROM submodules and exclusion of shiftrows","authors":"Seena S. Das, R. Resmi","doi":"10.1109/COMPSC.2014.7032656","DOIUrl":"https://doi.org/10.1109/COMPSC.2014.7032656","url":null,"abstract":"An efficient VLSI implementation of encryption using Advanced Encryption Standard (AES) algorithm is introduced. The architecture deals with ROM based key expansion modules rather than registers which were commonly used and another advantage is the exclusion of shift rows by which merging of two steps in algorithm is proposed which enhances the reduction in area and power. Xilinx ISE 14.5 is the software used with Virtex5 FPGA for implementation. In this encryptor an efficient merging for the encryption process sub-steps is implemented after relocating them. In this design, the S-BOX is implemented with internal pipelining and it is shared between the main round and the key expansion units. These designs achieved higher FPGA efficiency (Throughput/Area) compared to previous AES designs.","PeriodicalId":388270,"journal":{"name":"2014 First International Conference on Computational Systems and Communications (ICCSC)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126491001","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}
{"title":"Segmentation and feature extraction of sputum cell for early detection of lung cancer","authors":"L. Shajy, P. Smitha, E. B. Shanker, V. Paul","doi":"10.1109/COMPSC.2014.7032677","DOIUrl":"https://doi.org/10.1109/COMPSC.2014.7032677","url":null,"abstract":"Diagnosis of lung cancer in its primal stage is a major problem faced by the medical world. For that proper details are needed from the images, which can only be obtained by a good segmentation method. However, many common forms of techniques are available in market and their major drawback is the accuracy of segmentation of the nucleus from the ROI and also the time consumed for the same. Since this pose to be a great problem, most of the techniques shrink to this phase only. In this paper we introduce a new type of cell image segmentation which works on the PAP stained sputum cytology images. This allows a very simple formulation, obviating the need for additional methods. The subsequent phase of feature extraction and classification is also done accordingly. Due to its simplicity the algorithm is fast and very robust. Our method demonstrates on sputum cytology images.","PeriodicalId":388270,"journal":{"name":"2014 First International Conference on Computational Systems and Communications (ICCSC)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126405350","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}