Designing a good feature selection (FS) algorithm is of utmost importance especially for text classification (TC), wherein a large number of features representing terms or words pose serious challenges to the effectiveness and efficiency of classifiers.
Nevertheless, advocates have raised questions over the years about challenges to and effectiveness of participatory research structures and practices in these cases and others (McCormick et al. 2004).
Difficulties inherent to defining 'capacity' and measuring an organization's progress toward it are major challenges to evaluating effectiveness, particularly when evaluating 'soft' capacities, like leadership development or employee motivation, that are challenging to quantify [ 54- 56].
Challenges to the effectiveness of UNICEF's work include weak national capacities for planning and management, weak capacities at decentralised levels, lack of multi-sector cooperation and lack of integration of education systems.
In this paper we describe the findings of interviews exploring the motivations and perceptions of members of the Tak Province Community Advisory Board on the Thai-Myanmar border and their views about the role of the CAB and potential challenges to its effectiveness.
It is critical to understand ED transitional processes and consequences because the complexity of dementia care poses multiple challenges to optimizing safety, effectiveness and quality of care during admission, assessment, and treatment in this setting.
Loss to follow-up (LTF) is recognised as one of the key challenges to evaluating the effectiveness of antiretroviral care in resource-limited settings.
Immune responses wane during aging, posing challenges to the potential effectiveness of cancer immunotherapies.
Resource-limited settings pose unique challenges to the implementation, effectiveness, and sustainability of HAART programs.
Despite substantial success, there remain numerous challenges to the ultimate effectiveness of routine immunization.
