8/10/2019 Annotation of Research Papers

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ANNOTATION OF RESEARCH PAPERS&TECHNICAL PAPERS

Paper Name: RECENT IMPROVEMENTS IN SPEECH RECOGNITION PERFORMANCE ON LARGE

VOCABULARY CONVERSATIONAL SPEECH (VOICEMAIL AND SWITCHBOARD)

Source : http://www.research.ibm.com/voicemail

Authors: J. Huang, B. Kingsbury, L. Mangu, M. Padmanabhan, G. Saon, G. Zweig

This paper is based on the topic about report recent improvements in word error performanceon a voicemail transcription task. Last year, the speaker independent word error rate (WER)on the dev. test set of the Voicemail Transcription task was reported at 35.45% [1]. This year,we report a relative 20% gain over this number. The improvements were obtained usingseveral new algorithms and an increased amount of training data. In addition to

benchmarking the performance of these algorithms on the Voicemail task, we have alsoevaluated them on the Switchboard task, and we report these results here as well. Finally, wealso present the result of cross domain experiments to evaluate the domain-independence ofthe constructed systems.

These improvements are a result of some new algorithms and, in the case of Voicemail, alsodue to an increase in the amount of training data. In the following sections, we describe the

contribution of several components to improving the word error rate. The Voicemailtranscription task is described in [1] and represents samples of conversational telephonespeech from a single speaker. The Switchboard task is described in several papers in [2] andrepresents samples of telephone conversations between two people.

The basic goal of speech recognition in this research is to design a domain-independentsystem (at least as far as the acoustic model is concerned) that can deal with various types ofspeech from the same category: for instance a system built on Switchboard should be able to

provide the same performance on Voicemail as a system trained on Voicemail.

8/10/2019 Annotation of Research Papers

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Paper Name: Voice-Mail Diary Studies for Naturalistic Data Capture under MobileConditions Source :www.researchgate.net/publication/2842528_VoiceMail_Diary_Studies_for_Naturalistic_Data_Capture_under_Mobile_Conditions/links/00b7d52bc84dfdcb4b000000

Authors: Leysia Palen, Marilyn Salzman

This project is based on studying Naturalistic data capture under Mobile like Conditions.Mobile technology requires new methods for studying its use under realistic conditions inthe field. Reflexively, mobile technology also creates new opportunities for data collectionwhile participants are remotely located. They report on the experiences with a variation onthe paper based diary study technique, which they extend by using voice-mail paired withmobile and landline telephony to more easily collect data in natural situations. They discusslessons learned from experiences with voice-mail diary studies in two investigations ofdifferent scope. They also present suggestions for tailoring the technique to different researchobjectives, garnering high subject participation, and configuring the voice-mail system fordata collection.

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Paper Name: Overview on Android The New Mobile Operating SystemSource : http://sgi.ac.in/colleges/newsletters/1146090820110943321.pdf#page=27 Authors: Monika Bazard, Sonia Bhardwaj

Cellular telephony has had a significant worldwide rate of acceptance, by year 2010 it is

estimated that 3.5B of the 6.s8B people in the planet will have access to a cell phone.Smartphone devices such as iPhone, Blackberry, and those that support the Android operatingsystem are progressively making an impact on society. In addition to their support for voiceand text exchange, smartphones are capable of executing sophisticated embedded softwareapplications, as well as provide a simple link to the Internet and its resources.

Android is a software stack for mobile devices that includes an operating system, middlewareand key applications. Android's mobile operating system is based on a modified version ofthe Linux kernel. The increasing interest from the industry arises from two core aspects: itsopen source nature and its architectural model. Being an open-source project, allows Androidto be fully analysed and understood, which enables feature comprehension, bug fixing,further improvements regarding new functionalities and, finally, porting to new hardware. Onthe other hand, its Linux kernel-based architecture model also adds the use of Linux to themobile industry, allowing taking advantage of the knowledge and features offered by Linux.Both of these aspects make Android an appealing target to be used in other type ofenvironments. Another aspect that is important to consider when using Android is its ownVirtual Machine (VM) environment. Android applications are Java-based and this factorentails the use of a VM environment, with both its advantages and known problems. Incomputing, a solution stack is a set of software subsystems or components needed to deliver afully functional solution, e.g. a product or service. Middleware is computer software thatconnects software components or some people and their applications. Software that providesa link between separate software applications. Middleware is sometimes called plumbing

because it connects two applications and passes data between them. Middleware allows datacontained in one database to be accessed through another.