A test-bed for the Correlation Center of Digital Services

For an e-business to be successful, companies need to formulate a business strategy, have informative strategic alliances, develop an international system, build a proactive infrastructure, internationalize their model, capture the residual value, exploit the international telecommunications liberalization, homogenize the data structure and globalize human resources. To achieve their objective, businesses need a more integrated automation system to speed up the process of establishing and conducting Internet-based services. In this paper, a component-based prototyping approach is used in developing a generic model and framework for a correlation center that provides entrepreneurs with a tool to quickly build and automate e-commerce linkages, thus enabling companies to establish their businesses over the Internet using a proven methodology

Hybrid-Vehfog: A Robust Approach for Reliable Dissemination of Critical Messages in Connected Vehicles

Vehicular Ad-hoc Networks (VANET) enable efficient communication between vehicles with the aim of improving road safety. However, the growing number of vehicles in dense regions and obstacle shadowing regions like Manhattan and other downtown areas leads to frequent disconnection problems resulting in disrupted radio wave propagation between vehicles. To address this issue and to transmit critical messages between vehicles and drones deployed from service vehicles to overcome road incidents and obstacles, we proposed a hybrid technique based on fog computing called Hybrid-Vehfog to disseminate messages in obstacle shadowing regions, and multi-hop technique to disseminate messages in non-obstacle shadowing regions. Our proposed algorithm dynamically adapts to changes in an environment and benefits in efficiency with robust drone deployment capability as needed. Performance of Hybrid-Vehfog is carried out in Network Simulator (NS-2) and Simulation of Urban Mobility (SUMO) simulators. The results showed that Hybrid-Vehfog outperformed Cloud-assisted Message Downlink Dissemination Scheme (CMDS), Cross-Layer Broadcast Protocol (CLBP), PEer-to-Peer protocol for Allocated REsource (PrEPARE), Fog-Named Data Networking (NDN) with mobility, and flooding schemes at all vehicle densities and simulation times

Seismic Displacement Demand of a Mid-Rise RC Building Considering Soil Structure Interaction

This study aims to evaluate the effect of soil structure interaction and the differences in linear and nonlinear modelling of the structure on seismic response. For this purpose, SSI and fixed base models of 7-story building were used. Both linear and nonlinear behavior of the building are taken into account for comparison. The findings obviously indicate large variation in displacement demands depending on ground motion record, soil type, consideration of soil structure interaction and linear and nonlinear structure modelling. The displacement demands tend to increase for softer soils except few cases, especially for fixed base models. Significant differences are obvious for linear and nonlinear building models of fixed base case. The evaluation of obtained results and observations in the current study clearly indicate that the effects of SSI approach depend on dynamic characteristics of soil and structure. While soil deformations influence the seismic demands of structure in positive way for linear models, these effects are more complex for nonlinear models. It is difficult to mention about certain trend for nonlinear models. It should be also kept in mind that linear fixed base models are inappropriate for dynamic analysis due to high sensitivity of dynamic amplification and the use of fixed base linear models may cause inaccurate seismic demand estimates. The outcomes and observations emphasize that the demand estimates are independent from the fixed base or SSI approaches and linear or nonlinear models for stiffer soils. All combinations provide reasonable demand estimates. However, the modelling approach becomes extremely important for softer soils. The best approach seems to be SSI with nonlinear modelling. The fixed base with nonlinear modelling also provides acceptable estimates

Investigation of Middle School Students’ Attitudes towards Science, Technology, Engineering and Mathematics (STEM) Education and Determination of the Predictors

The purpose of the current study is to investigate middle school students’ attitudes towards Science, Technology, Engineering, and Mathematics (STEM) education and to determine the predictors of these attitudes. The study was designed according to the relational survey model, one of the quantitative research designs. The sample of the study is comprised of 408 middle school 6th, 7th, and 8th-grade students. The data of the current study were collected using a STEM-oriented attitude scale. An independent samples t-test, one-way variance analysis, and stepwise multiple regression analysis were used to analyze the collected data. As a result of these analyses, it was determined that the students’ attitudes towards STEM vary significantly depending on the students’ gender, grade level, participation in in-school and out-of-school social activities, science and mathematics achievement. The most effective three predictors of STEM were found to be science achievement, being a 6th grader, and being female. The state of being female was found to be negatively correlated with the prediction of the attitudes towards STEM. As a conclusion of the study, suggestions were made to eliminate gender-based differences in STEM attitudes, increase STEM activities in upper grades, and for career planning

Faktor - Faktor yang Mempengaruhi Produksi Usahatani Terong Ungu di Kelompok Tani Koko Naibate Desa Manunain A Kecamatan Insana

Penelitian ini bertujuan : Untuk mengetahui gambaran usahatani terong ungu di Kelompok Tani Koko Naibate Desa Manunain A Kecamatan Insana , Untuk mengetahui faktor-faktor yang mempengaruhi produksi usahatani terong ungu di Kelompok Tani Koko Naibate Desa Manunain A Kecamatan Insana. Penelitian dilaksanakan pada bulan Juni sampai bulan September 2017. Teknik penentuan sampel dilakukan mengunakan teknik sampel jenuh/sensus .Sampel yang digunakan dalam penelitian ini adalah 25 responden. Metode analisis data dalam penelitian ini meliputi: metode deskriptif kualitatif dan analisis Cobb-Douglass. Tahapan usahatani terong ungu yang dilakukan di Kelompok Tani Koko Naibate Desa Manunain A meliputi: Persiapan lahan, Pemilihan benih, Persemaian, Penanaman, Pemeliharaan, Panen dan pasca panen. Input yang digunakan yakni: luas lahan, benih, tenaga kerja, pengalaman berusahatani, pendidikan dan tanggungan keluarga. Hasil penelitian menyatakan bahwa usahatani terong ungu di Kelompok Tani Koko Naibate Desa Manunain A menggunakan pola tanam tumpang sari. Produksi terong ungu dipengaruhi oleh 2 faktor yaitu luas lahan dan benih sedangkan faktor-faktor yang tidak berpengaruh nyata terhadap produksi usahatani terong ungu yaitu tenaga kerja, pengalaman berusahatani,pendidikan dan tanggungan keluarga

IITP at MEDIQA 2019: Systems Report for Natural Language Inference, Question Entailment and Question Answering

This paper presents the experiments accomplished as a part of our participation in the MEDIQA challenge, an (Abacha et al., 2019) shared task. We participated in all the three tasks defined in this particular shared task. The tasks are viz. i. Natural Language Inference (NLI) ii. Recognizing Question Entailment(RQE) and their application in medical Question Answering (QA). We submitted runs using multiple deep learning based systems (runs) for each of these three tasks. We submitted five system results in each of the NLI and RQE tasks, and four system results for the QA task. The systems yield encouraging results in all three tasks. The highest performance obtained in NLI, RQE and QA tasks are 81.8%, 53.2%, and 71.7%, respectively

A Web-based interactive Student Advising system using Java frameworks

The use of open source frameworks and tools has become popular in Java development. These frameworks and tools have core strengths and weaknesses and are selected accordingly for development. Consequently, one of the key issues that developers face is to integrate and configure these tools together. This paper demonstrates the use of popular Java frameworks and tools to develop a Web-based interactive Student Registration and Advising system