Semantic hierarchy construction aims to build structures of concepts linked by hypernym–hyponym (“is-a”) relations. A major challenge for this task is the automatic discovery of such relations. This paper proposes a novel and effective method for the construction of semantic hierarchies based on word embeddings, which can be used to measure the semantic relationship between words. We identify w...

The main purpose of this study was to investigate the role of Knowledge Management (KM) in Organizational Entrepreneurship (OE) among agriculture extension workers at Kermanshah Township, Iran. The statistical population in this study consisted of all agriculture extension workers of Jihad-e-Agriculture management and centers of agricultural services at Kermanshah Township (N=143), of whom 129 ...

the purpose of this study was to determine computer and internet use in agricultural extension by extension workers (ews). this study used a descriptive-correlational design.population for the study consisted of all extension workers (n= 320) in isfahan province, iran. a stratified sampling technique and census was used to select ews (n = 200). overall, findings indicate that ews have access to...

Twenty first century challenges facing agriculture include climate change, threats to food security for a growing population and downward economic pressures on rural livelihoods. Addressing these challenges will require innovation in extension theory, policy and education, at a time when the dominance of the state in the provision of knowledge and information services to farmers and rural entre...

Globally, ministries of agriculture, universities, and the private sector employ more than 600,000 extension agents (Swanson, Farmer, and Bahal 1990). In the past, extension services, largely public, were equated with the transfer of agricultural production technology in pre-determined “packages”. Extension systems are now understood to be much broader and more diverse, including public and pri...

agricultural extension workers’ service has been placed as the central pattern of agricultural transformation in general and smallholder farmers in particular. due largely to this commensurately known trend, identifying factors that determine farmers’ access to extension workers’ service and the effect of the service on crop yield was found to be imperative. cross sectional data was collected t...