ACM DEV '13Pub Date : 2013-01-11DOI: 10.1145/2442882.2442909
Han Ei Chew, Borort Sort, P. Haddawy
{"title":"Building a crowdsourcing community: how online social learning helps in poverty reduction","authors":"Han Ei Chew, Borort Sort, P. Haddawy","doi":"10.1145/2442882.2442909","DOIUrl":"https://doi.org/10.1145/2442882.2442909","url":null,"abstract":"In this paper, we describe the design and use of a knowledge sharing network that has recently been deployed for agricultural extension work in the Lao People's Democratic Republic (Lao PDR). The system, Poverty Reduction and Agricultural Management -- Knowledge Sharing Network (PRAM-KSN), was built using a collaborative design process that involved both experts and ministerial agricultural extension workers who are also the current users of this web-based platform. This paper also discusses the relevance of the PRAM-KSN for agricultural extension work, how the principles of crowdsourcing apply to the system, and how social learning occurs for the benefit of agricultural extension work. Suggestions for impact assessment of the PRAM-KSN at different time-frames are offered.","PeriodicalId":240004,"journal":{"name":"ACM DEV '13","volume":"111 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114004674","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}
ACM DEV '13Pub Date : 2013-01-11DOI: 10.1145/2442882.2442899
Akhil Mathur, S. Agarwal, S. Jaiswal
{"title":"Exploring playback and recording of web-based audio media on low-end feature phones","authors":"Akhil Mathur, S. Agarwal, S. Jaiswal","doi":"10.1145/2442882.2442899","DOIUrl":"https://doi.org/10.1145/2442882.2442899","url":null,"abstract":"Web-based audio information systems have the potential to bring the full promise of the Internet to the developing world. However, these systems run into a practical difficulty - insufficient support for playback and recording of web-based multimedia from feature phones. At the moment, feature phones constitute more than 90% of all phone shipments in emerging markets like India, and will continue to form a significant fraction (>50%) several years from now.\u0000 In this paper we explore the practical challenges associated with audio playback and audio recording on feature phones. We present a systematic evaluation of the options to play and record audio media in a range of feature phones, and highlight problems stemming from a lack of memory, slow processor speeds and no support for progressive streaming downloads. In summary, the players in these phones are usually designed to handle audio files of short durations (a few minutes). Anything longer results in frequent breaks in playback (of up to 300msecs), and a very poor experience for the end-users. We investigate various solution approaches that may overcome these issues, and present an implementation and evaluation that achieves a seamless user experience on any audio stream.","PeriodicalId":240004,"journal":{"name":"ACM DEV '13","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129928882","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}