1,646 research outputs found

    Adoption of Modern Paddy Farming Practices Among the Farmers in a Mahaweli Settlement Scheme in Sri Lanka

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    The main purpose of the study was to determine the adoption and level of adoption of modern paddy farming practices among the farmers in the Galnewa Block of System H in the Mahaweli territory of Sri Lanka. The study also attempted to estimate the relationship between adoption and yield. In addition, the study examined the relationships between adopt ion and ascertained factors derived from factor analysis. It further analysed the extent of adoption and non-adoption, the characteristics of adopters and non-adopters, the practices which were adopted and not adopted, and reasons for nonadoption. The study used the survey method supplemented by observations,unstructured interviews, and secondary data

    Non-Orthogonal Multiple Access for mmWave Drones with Multi-Antenna Transmission

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    Unmanned aerial vehicles (UAVs) can be deployed as aerial base stations (BSs) for rapid establishment of communication networks during temporary events and after disasters. Since UAV-BSs are low power nodes, achieving high spectral and energy efficiency are of paramount importance. In this paper, we introduce non-orthogonal multiple access (NOMA) transmission for millimeter-wave (mmWave) drones serving as flying BSs at a large stadium potentially with several hundreds or thousands of mobile users. In particular, we make use of multi-antenna techniques specifically taking into consideration the physical constraints of the antenna array, to generate directional beams. Multiple users are then served within the same beam employing NOMA transmission. If the UAV beam can not cover entire region where users are distributed, we introduce beam scanning to maximize outage sum rates. The simulation results reveal that, with NOMA transmission the spectral efficiency of the UAV based communication can be greatly enhanced compared to orthogonal multiple access (OMA) transmission. Further, the analysis shows that there is an optimum transmit power value for NOMA beyond which outage sum rates do not improve further

    Identifying Relationships Among Sentences in Court Case Transcripts Using Discourse Relations

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    Case Law has a significant impact on the proceedings of legal cases. Therefore, the information that can be obtained from previous court cases is valuable to lawyers and other legal officials when performing their duties. This paper describes a methodology of applying discourse relations between sentences when processing text documents related to the legal domain. In this study, we developed a mechanism to classify the relationships that can be observed among sentences in transcripts of United States court cases. First, we defined relationship types that can be observed between sentences in court case transcripts. Then we classified pairs of sentences according to the relationship type by combining a machine learning model and a rule-based approach. The results obtained through our system were evaluated using human judges. To the best of our knowledge, this is the first study where discourse relationships between sentences have been used to determine relationships among sentences in legal court case transcripts.Comment: Conference: 2018 International Conference on Advances in ICT for Emerging Regions (ICTer
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