Nagraj Emmadi

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We developed an interactive voice response (IVR) system called TAMA (Treatment Advice by Mobile Alerts) that provides treatment support to people living with HIV / AIDS (PLHA) in developing countries, who are on antiret-roviral therapy (ART). We deployed TAMA with 54 PLHA in 5 HIV clinics in India for a period of 12 weeks. During the study, we gathered(More)
Swarachakra is a text input method developed for Indic scripts on touch-screen devices. Swarachakra uses a logically ordered design based on the structure of Indic scripts. Swarachakra displays the consonants sequenced according to the logical structure of Indic scripts, phonetically grouped and arranged in a grid similar to those found in most school(More)
Indian text input is an area which is now being studied by not only language experts but designers and developers. Since a decade there is work in progress for designs that are intended to develop easy and efficient keyboard for different Indian Languages scripts. Swarachakra (for android) is one novel attempt to resolve this problem. In our studies we(More)
As part of an ongoing standardization effort, we were asked to evaluate Marathi text input mechanisms on smartphones. We undertook a between-subject longitudinal evaluation of four existing keyboards with 153 novice users who participated for 31 sessions each, spread over 3--4 weeks. In this paper, we present the empirical results of the performance of(More)
The rapid increase in mobile penetration has cut through the literacy barriers even in the developing countries. It has paved a way for technological interventions in healthcare domain, using the mobile platform such as Interactive Voice Response Systems (IVRS). Over the past few years, IVRS have been looked upon as an intervention in frequent and(More)
We were asked to evaluate input mechanisms for touch-screen devices with the objective of standardising one of them for each of 14 major languages of India. For this purpose, we propose a protocol that consists of a 45-minute long training session, a 20-word first-time usability test, and a longitudinal test consisting of about 30 sessions, each of which(More)
This paper presents the results of a within-subject longitudinal evaluation on Inscript keyboard, which is the national standard layout for Indian scripts. We studied the practical upper bound speed and accuracy as well as the effect of practice. Through longitudinal transcription task of 400 repeated attempts, we observed typing speeds for highly(More)
The mobile phone penetration in rural India is high and network prices are low. Usage of smartphones in rural areas is rising. However, information technology in general, and smartphones in particular are not being used for business purposes. While there is scope for developing localised business applications for rural India, there are very few Indian(More)
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