GPH-International Journal of Computer Science and Engineering

An Improved Model for the Evaluation of Search Engine Result Pages Using Hybridized Evaluation Techniques

2025-02-12T09:35:16+00:00

In this paper, the hybridised ranking system was developed by utilising WPR to evaluate the structural importance of web pages by assigning values to both the incoming and outgoing links and also other web pages it is connected to while incorporating CTR metrics to account for user activities and TF-IDF to reduce the weight of commonly used words by assigning lower values to words that appear in many documents hence combining both to measure content relevance. The hybridised approach is compared with the standard PageRank (PR) using the sum of WPR, CTR and TF-IDF metrics for position ranking with 50 randomly selected query datasets which were ranked into less relevant (LR) and most relevant (MR) positions. The hybridised approach reduced irrelevant pages by reshuffling the less relevant pages to the bottom of the list of web pages found while moving the more relevant pages to the top for the given queries, thereby improving the ranking efficiency of the search engine result pages. In Table 4.1, the process of ranking the 1^st, 2^nd,7^th and 8^th document for the PageRank is moved to the 23^rd24^th 25^th and 26^th position based on their relevance to the queried data while the 3^rd, 4^th,5^th and 6th document maintained a high position based on their relevance. In Table 4.2, the 1^st 2^nd 3^rd and 4^th documents were reshuffled to the 7^th 8^th 9^th and 10^th positions while the 6^th 7^th and 8^th documentsmaintained a high-ranked position due to their relevance.This study has provided a scalable framework that enhances user experience by minimising irrelevant search results and prioritising pages of higher relevance.

Analysis and Modeling of Intelligent Channel Allocation Techniques in Mobile Communication Systems

2025-04-12T09:44:57+00:00

This study is on the analysis and modeling of intelligent channel allocation techniques in mobile communication systems where different channel allocation techniques were considered in mobile communication systems. Also, the different channels which are used in the cellular networks were sufficiently described. Various parameters in mobile communication system that are related to channel allocation techniques and blocked calls were identified and discussed. Data collection was carried out from the Network Switching Center of a highly established and reputable Telecommunication Operator. Data were collected both from the Base Transceiver Stations (BTS), the Base Station Controller (BSC) and the Mobile Switching Centre (MSC), at different locations in Nigeria. These data were collected at different times on monthly basis for a period of thirty six (36) months in the course of this study. Proteus software was used to analyze data collected to enhance the simulation set up. A model (GRACE MODEL) of intelligent channel allocation technique algorithm was developed to reduce the call blocking and also call dropping probability. To authenticate the effectiveness of the proposed algorithm, the simulation result was demonstrated respectively showing normal capacity; over capacity; rerouting to neighbouring sector, e.t.c. It was observed that with the use of the proposed channel re-assignment strategies algorithm, the radio coverage at large distances had more increase in the system channel capacity. It was also observed that the blocked calls (the chance that a call will have no service) were highly reduced due to intelligent philosophy in the developed model. Additionally, the model helped to scale up performance and provided great improvement in network spectral and energy efficiency.

DESIGN AND INSTALLATION OF 3.5KVA SOLAR POWERED SYSTEM

2025-04-06T07:42:00+00:00

Solar energy less significant threat to human health, as well as the greenhouse effect and high maintenance costs of power generation systems. The study focused on designing and implementing a low-cost solar power inverter system with DC batteries that could supply 230V AC when completed. The design's operating principle is that when the sun shines on the photovoltaic cells, the cells convert the solar energy into a DC volt, which is then utilized to charge the battery via the charger controller, which regulates the charge. The inverter is powered by a battery that is attached to it. The inverter converts DC electricity from the battery to AC voltage, which may then be used to power appliances in the various departments when the installation is completed. The output voltage is shown on an LCD as an extra function. Finally, the designed system circuit was thoroughly tested and found to operate admirably. It will be able to accomplish the above functions properly at the end of this project. The performance of the 3.5KVA solar-powered system has been satisfactory, and it is performing as expected.

Buyer-seller Negotiation on Camera Vision System: Brazilian Case

2025-05-01T12:56:29+00:00

In this article, a Brazilian automotive company engages in a buyer-seller, Type II negotiation, to reduce alternators' production costs. It identifies the possibility of replacing an imported bearing with a cheaper Chinese one, saving $0.36 per piece. However, the change requires acquiring a new vision camera to detect the correct color of the bearing on the production line. The company negotiates with the Supplier, offering a high-quality solution that costs $10,000, exceeding the available budget of $6,363.64.In a scenario like this, companies freeze and look for more viable alternatives. This work proposes best managerial practices to elucidate how to resolve this impasse by presenting this descriptive and unique case study.

From Distributive to Integrative: A Strategic Negotiation for Supply Chain Optimization in Brazil

2025-05-01T13:10:25+00:00

In this article, a Brazilian software company with an extensive portfolio of supply chain optimization and management solutions, widely consolidated in the pharmaceutical market, engages in a buyer-seller, Type II software negotiation, aiming at expanding its operations to other sectors, such as Consumer Goods and Automotive. The software company negotiates with a multinational company in the consumer goods sector with a global reach and decades of consolidated history in the market. The multinational company is willing to consider the Brazilian software company but wants proof that the system is compatible with its operating model and volume, a guarantee of low risk in the migration, advantageous commercial terms, and specific customizations included in the package. Companies try to maximize their gains and minimize their risks in real-case scenarios. This article reveals best managerial practices to elucidate how to resolve this stalemate by presenting this descriptive and single case study.

Deal-Making in Private Equity: Lessons from a Brazilian Tech Company and Private Equity Firm Negotiation

2025-05-12T13:09:49+00:00

This case study examines the negotiation between a technology company and a private equity fund, highlighting the complexities of aligning distinct interests in a private equity negotiation. The parties navigated critical aspects such as sale price, organizational culture, staff retention, breakup fee, and labor liabilities, utilizing negotiation techniques like BATNA and ZOPA to reach a mutually beneficial agreement. The outcome demonstrates the importance of a well-structured process and strategic concessions in achieving a successful transaction. Discussion and lessons learned compile this work.