Measuring Dis/Similarities Between Objects (Cells) In 'n'-Dimensional Space Cluster analysis works creating groups that have minimal variance (more similar) within and maximal dissimilarities between them. Cluster analysis can work either agglomeratively or divisively. Agglomerative methods begin with each individual cell representing a group (or cluster) and joins the two most similar to form a new cluster. This then repeats until all of the cells have been clustered into one group. I'll explain this more clearly with graphics below because it is the technique that I will be using classify my cells. Divisive methods start with the entire set of cells, and subdivides it to maximize the dissimilarity between the 2 newly formed groups. Distance Measures For Agglomerative Methods How do you tell how similar two cells are? It should be pretty obvious from the previous graphs that you can tell clusters apart from each other because the points in space are closer to e...
''How to Stay Inspired and Focused in Tough Times'' No pessimist ever discovered the secrets of the stars or sailed to an uncharted land or opened up a new heaven to the human spirit," observed Helen Keller. In this change-crazed world we live in, a healthy dose of optimism will help us deal with life's daily challenges and stay inspired in the face of difficulties. But the habit of positive thinking is not enough. To truly thrive on the inevitable obstacles that will appear on your path, you must learn specific strategies for managing setbacks and transforming your struggles into strengths. The following five points will keep you motivated, inspired and focused as you deal with adversity 1. Search for the Opportunity. The great motivational thinker Napoleon Hill once said that every difficulty contains the seed of an equivalent opportunity. The person of true character has the courage to find it and then seize it in order move on to a whole new level of succ...
EDUCATION: ONE OF THE MOST POWERFUL WEAPONS TO CHANGE THE WORLD “Education is the most powerful weapon which you can use to change the world.” – Nelson Mandela The Oxford Dictionary defines Education as, “The process of receiving or giving systematic instruction, especially at a school or university.” As a noun, it is described as, “a body of knowledge acquired while being educated.” So in essence Education involves the imparting of knowledge to a person and then the consequent knowledge gained through this process. Education is seen as integral to enabling sustainable development around the world and especially so in developing countries. From fighting poverty to providing food security to curing diseases – education provides the tools needed to improve quality of life both economically and sociologically in modern society. So a lot of faith is placed in Education as a tool or weapon to change the world. There is no denying that Education is at the heart of...
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