Cross-correlationIn signal processing, cross-correlation is a measure of similarity of two series as a function of the displacement of one relative to the other. This is also known as a sliding dot product or sliding inner-product. It is commonly used for searching a long signal for a shorter, known feature. It has applications in pattern recognition, single particle analysis, electron tomography, averaging, cryptanalysis, and neurophysiology. The cross-correlation is similar in nature to the convolution of two functions.
Facial recognition systemA facial recognition system is a technology potentially capable of matching a human face from a or a video frame against a database of faces. Such a system is typically employed to authenticate users through ID verification services, and works by pinpointing and measuring facial features from a given image. Development began on similar systems in the 1960s, beginning as a form of computer application. Since their inception, facial recognition systems have seen wider uses in recent times on smartphones and in other forms of technology, such as robotics.
Child neglectA form of child abuse, child neglect is an act of caregivers (e.g., parents) that results in depriving a child of their basic needs, such as the failure to provide adequate supervision, health care, clothing, or housing, as well as other physical, emotional, social, educational, and safety needs. All societies have established that there are necessary behaviours a caregiver must provide for a child to develop physically, socially, and emotionally.
Child careChild care, otherwise known as day care, is the care and supervision of a child or multiple children at a time, whose ages range from two weeks of age to 18 years. Although most parents spend a significant amount of time caring for their child(ren), child care typically refers to the care provided by caregivers that are not the child's parents. Child care is a broad topic that covers a wide spectrum of professionals, institutions, contexts, activities, and social and cultural conventions.
Refugee childrenNearly half of all refugees are children, and almost one in three children living outside their country of birth is a refugee. These numbers encompass children whose refugee status has been formally confirmed, as well as children in refugee-like situations. In addition to facing the direct threat of violence resulting from conflict, forcibly displaced children also face various health risks, including: disease outbreaks and long-term psychological trauma, inadequate access to water and sanitation, nutritious food, health care [6] and regular vaccination schedules.
