Open Access Short Research Article

A Hybrid Recommendation Architecture for Nigerian Online Stores

A. T. Olaniran, I. O. Awoyelu, A. O. Amoo, B. O. Akinyemi

Current Journal of Applied Science and Technology, Page 1-9
DOI: 10.9734/BJAST/2016/21466

Online retailing, a business activity in e-commerce, is the process of selling physical goods on the internet while online shopping is the process of buying and selling goods and services over the internet. Item recommendations, however, is a business strategy in e-commerce employed in promoting goods sold on an online store. Majority of the online stores in Nigeria have their shopping systems implemented similar to online shopping systems used Developed Countries. Much focus have been placed on the provision of non-personalized recommendations in Nigerian online stores, as ratings information needed for personalized recommendations is sparse. These systems are mostly a hybrid of content-based and collaborative filtering approaches to recommendation generation. The use of content-based, collaborative and demographic hybrids have not been fully explored and implemented. This paper, however, proposes a hybrid item recommendation architecture that combines the content-based, collaborative and demographic filtering approaches in a mixed hybridization strategy for provision of recommendations on online stores. The architecture provides collaborative recommendations using the vector similarity and adjusted cosine similarity measure. The proposed system will go a long way in providing adequate item recommendation in Nigerian stores.

Open Access Original Research Article

Subjective Ethnographic Protocol for Work Activity Analysis and Occupational Training Improvement

Philippe Fauquet Alekhine

Current Journal of Applied Science and Technology, Page 1-16
DOI: 10.9734/BJAST/2016/21632

The renewal of the staff in companies, with no possibilities sometimes for the newcomers to meet experienced workers already retired, is considered by some analysts as a “skills drain”. In such a context, improving the occupational training program is a crucial challenge for any company concerned by this social phenomenon.

The method presented here aims at providing an in-depth analysis of what makes the competencies of experience workers in order to provide more exhaustive input data for training. This might contribute to lessen the aforementioned problem. It uses subjective video recordings of work activities and applies co-analysis (researcher-worker) based on the Square of Perceived Action model developed for the purpose in the frame of Activity Theory.

The Square of Perceived Action-based method showed a better efficiency when compared with three other methods for four different activities. It also showed a good acceptance by the professionals who felt an improvement of their vocational practices after having being involved in such an analysis of their work activity.

Open Access Original Research Article

Neurosurgery Reporting System (NeuroSyRS): Prototype of Innovative Information System Application in Neurosurgery Center, Bandung, Indonesia

Ahmad Faried, Muhammad Z. Arifin, Agung B. Sutiono, Sony A. Yuniarto

Current Journal of Applied Science and Technology, Page 1-11
DOI: 10.9734/BJAST/2016/21545

Objectives: Neurosurgery Reporting System (NeuroSyRS), innovative information system application designed for healthcare with comprehensive scope. NeuroSyRS is a web-based with costum-made, modular-dynamic design; can be enhanced using cloud.

Methods: NeuroSyRS combines the open-source flexible system design that benefits for implementation and development needs as well as support for mobile devices to enable high quality patient care. The web-based network allows online access not only among departments but also between government and private installations. NeuroSyRS platform is designed to meet the needs of database management and its interphase with other services that are responsible for data acquisition and visualization. NeuroSyRS act as central-portal and -data base in the communication information system (ICT), designed to compile patient report paperless and equipped with tele-consultation.

Results: NeuroSyRS is a prototype that developed for a variety of administrative processes. This system will simplify the work process and can be integrated with hospital health care system, Health Department and the Ministry of Health. A good ICT will be useful in collecting clinical information than conventional paper-based reporting system and to minimize errors in the reporting chain.

Conclusions: Our system may bridging gap between the clinical needs and digital documentation, telemedicine-monitoring and improve the quality of patient care, facilitate communication within both the scope of the internal (hospital) and external (stakeholders and follow-up), increasing productivity and reduce overall expenses.

Open Access Original Research Article

Adaptation Strategies to Effects of Climate Change on Arable Crops Production in Southwestern Nigeria

Olasimbo Motunrayo Apata

Current Journal of Applied Science and Technology, Page 1-7
DOI: 10.9734/BJAST/2016/21347

Agriculture is an important aspect of Nigerian economy in that it provides food, employment, raw material for industries. This sector can affect and can be affected by climate change variations in the area. These effects need to be identified and adaptation strategies ascertained on arable crop farmers. The study was designed to identify visible climate change effects on arable crop production and the adaptation strategies to these effects by arable crop farmers. It was conducted in the southwestern Nigeria. A total of 120 respondents were selected from two states of the southwestern Nigeria. Questionnaire was used to elicit information on the topic from the respondents. Data collected was analyzed using descriptive analysis and linear regression analysis was used for inferential analysis. The result showed that prominent arable crops among the respondents are maize (21.7%), yam (20.0%), cassava (14.2%), rice (9.2%) and plantain (6.7%). Annual income from arable crops farming showed that 19.2% of the respondents make between 501,000.00 and 600,000.00, 14.3% make between 601,000.00 and 700,000.00 and 18.7% of the make above 700,000.00 naira from arable crops farming annually. Reduction in crop yield (6.7%), pest and diseases infestation (21.7%), late maturity of crops (20.0%) and extinction of crops (6.7%) were identified to be the visible effects of climate change. Migration and relocation were also identified by arable crop farmers as visible effects of climate change. Crop rotation (34.2%), intercropping (20.0%), diversification (21.7%), resistance varieties (20.0%) and mix cropping (4.2%) were ascertained to be the adaptation strategies to climate change by arable crop farmers in the zone. Inferential analysis revealed that educational status (r = 0.033, p = 0.070), social status (r = 0.231, p = 0.009) and farming experience (r = 0.0292, p = 0.023) have positive coefficients and are significantly related to productivity.

Open Access Original Research Article

Current Warming in Middle Asia and Atmospheric Circulation Change Development

Yu. V. Petrov, B. M. Kholmatjanov, A. P. Asatov

Current Journal of Applied Science and Technology, Page 1-7
DOI: 10.9734/BJAST/2016/20497

A study has been carried to determine the trends in atmospheric circulation forms in the beginning of the current warming in Middle Asia, on the basis of interannual changes of duration of synoptic processes in Middle Asia over the last 60 years. This study was conducted in Uzbekistan territory for a period over 100 years and series of temperature and annual precipitation measurements were recorded. In this study the methodology was employed based on statistical and trend analysis of time series, evaluation criteria of linear trends significance, and new indexes of circulation. It was also noticed that a notable increase in the average annual air temperature began in 60s of the last century in Uzbekistan. The warming is statistically significant. There was a slight increase in annual precipitation in the same period. Changes in air temperature and precipitation due to changes in the regional atmospheric circulation patterns. The length of the Northern and North-Western cold intrusions (meridional circulation form) has been decreasing, and the duration of Western intrusions (latitudinal circulation form) has not been changed virtually. Latitudinal transport of air masses has became predominant over Middle Asia from the middle 60s and index of circulation, representing ratio of the synoptic processes duration favorable for sedimentation, to the duration of anticyclonic processes was proposed. The value of this index has been decreased during the last 50 years, which had been associated with increased duration of anticyclonic processes not favorable for precipitation. However, rainfall has increased both in warm and cold half-year. A paradoxical situation appears, but it can be easily explained. Spektorman’s researches confidently show that air masses which flow to Middle Asia for last 50 years became not only warmer but also wetter. The effect of air wetness rise in the process of precipitation is a subject of separate research. Besides, water vapor rise has become the main reason of intensification of greenhouse effect. According to the data of the World Bank emissions of carbon dioxide in Uzbekistan were many less than in many other countries. So, not carbon dioxide rise, but water vapor rise in atmosphere caused the warming of regional climate. Thus, the current warming in Uzbekistan is under the influence of one of the main climate-forming factors – circulation.

Open Access Original Research Article

The Influence of Social Power in Online Purchase Decision

Chen-Chi Chang

Current Journal of Applied Science and Technology, Page 1-16
DOI: 10.9734/BJAST/2016/21580

The paper aims to clarify the influence of hard and soft power in online purchase decisions. A fundamental property of online social networks is that people tend to have attributes similar to those of their friends. To understand the effects of social power on the influence of opinion leaders from the social power perspective, this study examined the relationships among social power, personal influence attempts, and influences on purchase decisions. The research data were collected from members of various online communities via the Internet. In order to target online users, a web-based survey was employed. A partial least squares (PLS) analysis was used to perform the data analysis. By integrating two types of social power, this study selects several important constructs which are closely related to hard and soft power to enhance the influence attempts in the online community. This paper confirms the importance of social power from the perspectives of influence attempts and recommends a conceptual framework for illustrating personal influence behaviour in the electronic commerce environment.

Open Access Original Research Article

Experiments on the Use of Machine Learning Classification Methods in Online Crime Text Filtering and Classification

Fadl Mutaher Ba-Alwi, Mohammed Albared

Current Journal of Applied Science and Technology, Page 1-12
DOI: 10.9734/BJAST/2016/21504

With the exponential growth of textual information available from the Internet, there has been an emergent need to find relevant and in-time knowledge about crimes from this huge size of information. The huge size of such data makes the process of retrieving and analyzing texts manually a very difficult task. Furthermore, domain-specific documents classification is a hard task and suffers from low classification efficiency due to overlapping among domain subclasses. This work is focused on finding an appropriate classification model for crime domain-specific knowledge on the Web. To do that, the two-level classification method for online crime text filtering and classification is used. In each level, three feature selection methods (Gini Index, Chi-square statistic and Information gain) and three learning methods (K-nearest neighbor, Naive Bayes and support vector machine (SVM)) are investigated. The experimental results in the first level indicate that Information gain feature selection method performs the best for crime terms selection and both SVM and NB exhibit the best performance for crime text filtering. Furthermore, the experimental results in the second  level indicate that Gini index feature selection method performs the best for crime types terms selection and SVM classifier exhibits the best performance on classifying crime documents into their appropriate crime types.

Open Access Original Research Article

Assessment of Strength Characteristics of Concrete Made from Locally Sourced Gravel Aggregate from South-South Nigeria

Gideon Olukunle Bamigboye, Anthony Nkem Ede, Uwanabasi Edet Umana, Tajudeen Odeniyi Odewumi, Oluwaleke Adekunle Olowu

Current Journal of Applied Science and Technology, Page 1-10
DOI: 10.9734/BJAST/2016/20365

Aims: The aim of this research is to verify the suitability of local gravel aggregates obtained from the Southern part of Akwa Ibom State for designed concrete production in place of crushed granite aggregate sourced from distance places at exorbitant cost. This paper assesses the strength characteristics of concrete made from two locally sourced gravel aggregates of 10 mm and 20 mm maximum sizes.

Study Design: Three samples of gravels divided into washed and unwashed gravels were used for the research. Concrete mix design of 25 N/mm2 at 28 days of curing was the target mean strength of the research.

Place and Duration of Study: Department of Civil Engineering, Covenant University, Ota –Nigeria, between September 2014 and July 2015.

Methodology: Particle size distribution test, specific gravity test, water absorption test, aggregate crushing value test, flakiness and elongation tests, slump test, compressive strength test were performed on the samples. Concrete cubes150 mm were cast for each gravel size and three specimen tested for 3, 7, 14, 21 and 28 days compressive strength.

Results: The washed gravels with 10 mm and 20 mm maximum size reached the target mean strength with 29.7 N/mm2 and 26.2 N/mm2 respectively while the unwashed gravel with 20 mm maximum size yielded a compressive strength of 24.5 N/mm2 at 28 days.

Conclusion: The results prove that the size, grading, internal bonding and deleterious material contribute immensely to the strength of concrete made from gravel aggregate.

Open Access Original Research Article

Overall Service Effectiveness on Urban Public Transport System in the City of Addis Ababa

Eshetie Berhan

Current Journal of Applied Science and Technology, Page 1-9
DOI: 10.9734/BJAST/2016/19679

Overall Equipment Effectiveness (OEE) concept has been practiced in the manufacturing sectors. However, there is no model so far in the service sector to measure its system performance. This paper is therefore tries to develop an Overall Service Effectiveness (OSE) model for service industries by extending the concepts from OEE model which is used in the manufacturing system. The OSE model was fitted and tested using data collected from the Anbessa City Bus Service Enterprise (ACBSE), Addis Ababa, Ethiopia. The findings of the study show that, the OSE of the ACBSE system is found to be low (41.83%) indicating that the overall service performance systems of the enterprise is very low as compared to the world class standard that is 85% to 95%. This is resulted from the fact that, the enterprise has exhibited low availability, poor performances and low passengers’ satisfaction, which requires the enterprise to improve its operational plan so that it will improve its availability and level of customer satisfaction.

Open Access Original Research Article

Climate Variability and Change in the Bamenda Highlands of North Western Cameroon: Perceptions, Impacts and Coping Mechanisms

Ndoh Mbue Innocent, D. Bitondo, Balgah Roland Azibo

Current Journal of Applied Science and Technology, Page 1-18
DOI: 10.9734/BJAST/2016/21818

Aims: The study investigates how local people perceive climate change/variability, its impacts and coping mechanisms in the Bamenda highlands of north western Cameroon

Study Design: A household-based descriptive cross-sectional study.

Place and Duration of Study: The Bamenda highlands of North West western Cameroon for the farming season 2012–2013 between June 2009 and July 2010.

Methodology: A “bottom-up” approach, which seeks to gain insights from the farmers themselves based on a farm household survey was employed. Meteorological data for the region was compared with local views gathered through focus group discussions and interviews in 12 villages selected from four of the seven divisions that make up the region. Household interviews explored the local significance of seasonality, climate variability, and climate change.

Results: Rainfall is characterized by significant interannual variability, with the last ten years characterized by undefined periods of dryness and wetness. Reduced rainfall and water supply, upward shifting of certain plant species and increased incidence of diseases on crops are major issues commonly raised by respondents. Changing the planting dates 130 (15.8%), traditional moisture holding practices, 200(22.2%) and the adoption of mixed cropping, 172 (19.1%) are some of the local coping mechanisms currently adopted by farmers. Lack of knowledge concerning appropriate adaptations (37±18.5), and lack of information about climate change (29±14.5) were among the barriers to adaptation. On the demographic and socioeconomic characteristics, famers “with” and “without” barrier to climate change adaptation strategies differed significantly on most of the independent variables (p<.001).

Conclusion: The study highlights the need for adaptation to current land, forest and water management practices to maintain livelihoods in the face of changes many people are not expecting.