[HTML][HTML] Evaluation of tree-based ensemble machine learning models in predicting stock price direction of movement

EK Ampomah, Z Qin, G Nyame�- Information, 2020 - mdpi.com
Forecasting the direction and trend of stock price is an important task which helps investors
to make prudent financial decisions in the stock market. Investment in the stock market has a …

[HTML][HTML] Effects of internal CSR activities on social performance: The employee perspective

M Adu-Gyamfi, Z He, G Nyame, S Boahen…�- Sustainability, 2021 - mdpi.com
Corporate social responsibility (CSR) continues to receive greater attention in the current
business world. Many studies on CSR focus on manufacturing or industrial companies by …

The impact of social media political activists on voting patterns

AN Kofi Frimpong, P Li, G Nyame, MA Hossin�- Political Behavior, 2022 - Springer
This paper investigates how social media affects general voting patterns. Unlike previous
studies investigating whether citizens’ use of social media affects political participation, this …

[HTML][HTML] An ECDSA approach to access control in knowledge management systems using blockchain

G Nyame, Z Qin, KOB Obour Agyekum, EB Sifah�- Information, 2020 - mdpi.com
Access control has become problematic in several organizations because of the difficulty in
establishing security and preventing malicious users from mimicking roles. Moreover, there …

[HTML][HTML] Precursors of role-based access control design in KMS: A conceptual framework

G Nyame, Z Qin�- Information, 2020 - mdpi.com
Role-based access control (RBAC) continues to gain popularity in the management of
authorization concerning access to knowledge assets in organizations. As a socio-technical …

Stock market prediction with gaussian na�ve bayes machine learning algorithm

EK Ampomah, G Nyame, Z Qin, PC Addo, EO Gyamfi…�- Informatica, 2021 - informatica.si
The stock market is one of the key sectors of a country’s economy. It provides investors with
an opportunity to invest and gain returns on their investment. Predicting the stock market is a …

A five-factor KMS success model: An empirical study

G Nyame, Z Qin�- Human Systems Management, 2020 - content.iospress.com
BACKGROUND: Knowledge remains an essential intangible resource for competitive
advantage in organizations. In the context of knowledge management (KM) strategy, knowledge …

Stock market decision support modeling with tree-based AdaBoost ensemble machine learning models

EK Ampomah, Z Qin, G Nyame, FE Botchey�- Informatica, 2021 - informatica.si
Forecasting stock market behavior has received tremendous attention from investors, and
researchers for a very long time due to its potential profitability. Predicting stock market …

Knowledge management system implementation success: A social capital perspective

G Nyame, EK Ampomah…�- Human Systems�…, 2022 - content.iospress.com
BACKGROUND: Organizations develop knowledge management (KM) strategies with the
intention to leverage knowledge across all functional areas. A knowledge management …

Security quality of KMS and KMS adoption: The context of SMEs

G Nyame, Z Qin, EK Ampomah�- Human Systems�…, 2022 - content.iospress.com
BACKGROUND: Knowledge is a source of competitive and strategic resource for many
small-and medium-sized enterprises (SMEs). Securing knowledge assets through secured …