Mining Changes for Real-Life Applications Bing Liu‚ Wynne Hsu‚ Heng-Siew Han and Yiyuan Xia School of Computing National University of Singapore 3 Science Drive 2 Singapore 117543 {liub‚ whsu‚ xiayy}@comp.nus.edu.sg Abstract. Much of the data mining research has been focused on devising techniques to build accurate models and to discover rules from databases. Relatively little attention has been paid to mining changes in databases collected over time. For businesses‚ knowing what is changing and
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Geometry (Greek γεωμετρία; geo = earth‚ metria = measure)‚ Its beginnings can be traced in ancient Egypt or early or before 1700 B.C. Due to necessity‚ every time the Nile River inundated and deposited fertile soil along the bank‚ the early Egyptian had to solve the problem of size and boundaries of land along the Nile River. Changes happened in the contour of the land had caused confusion among landowners. So a system of making boundaries‚ measuring lengths and areas had to be discovered
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|International Marketing Assignment | |Real Life Examples of the Leontief Paradox | |Course Instructor: Dr. Abu Yousuf M Abdullah | | | |
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Quadrilateral just means "four sides" (quad means four‚ lateral means side). Any four-sided shape is a Quadrilateral. But the sides have to be straight‚ and it has to be2-dimensional. A quadrilateral is defined as any two-dimensional‚ four-sided shape that has four vertices with interior angles that equal 360 degrees. There are several quadrilateral variations that include parallelograms‚ rectangles‚ rhombuses‚ squares‚ trapezoids‚ and kites. Quadrilaterals * Parallelogram – A parallelogram
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Conjecture-unproven statement that is based on observations Counterexample-an example showing a conjecture is false collinear points-points that lie on the same line coplanar points-points that lie on the same plane point-has no dimension line-extends in 1 direction plane-extends in 2 dimensions postulate/axioms-rules accepted w/o proof . POSTULATE 2 – SEGMENT ADDITION POSTULATE. IF B IS BETWEEN A AND C THEN AB+BC=AC. IF AB+BC=AC THEN B IS BETWEEN A AND C DISTANCE FORMULA (X2-X1)2+(Y2-Y1)2
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Graded Assignment Unit Test‚ Part 2: Polynomials and Power Functions Answer the questions and show your work. When you are finished‚ submit this assignment to your teacher through the appropriate dropbox basket. (3 pts) 1.) Factor 100x^2 – 49 to factor‚ use the difference of squares formula‚ because both the terms are perfect squares the difference of squares formula is a^2 – b^2 = (a-b)(a+b) therefore 100x^2 – 49 = (10x)^2 – 7^2 = (10x – 7)(10x +7) (5 pts) 2.) Solve x^2 –
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Geometry Segment 1 Notes . POLYGONS All of the figures you saw in the slideshow were polygons. A polygon is a closed figure with three or more sides. The prefix poly- means “many” while -gon means “angle.” So a polygon is a many-angled figure. 5 Sides : Pentagon 6 Sides : Hexagon 7 Sides : Heptagon 8 Sides : Octagon 9 Sides : Nonagon 10 Sides : Decagon 11 Sides : Hendecagon 12 Sides : Dodecagon A regular polygon is a many-sided figure where
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that chemists use algebra is when mixing together chemicals. They need to calculate the correct amount of each substance to obtain the desired result. Algebraic Concepts in Everyday Life The following are examples that I learned from the course discussion board of different ways that algebra can solve everyday life problems. ∙ To determine each person’s share of the cost for a limo ride‚ you would add a tip to the cost of the limo and divide by the number of riders. For example‚ if there were
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Geometry is simply the study of space. There are Euclidean and Non-Euclidean Geometries. Euclidean geometry is the most common and is the basis for other Non-Euclidean types of geometry. Euclidean geometry is based on five main rules‚ or postulates. Differences in these rules are what make new kinds of geometries. There is Euclidean‚ Elliptic‚ and Hyperbolic Geometry. Euclidean geometry is the study of flat space and was invented by Euclid‚ a mathematician from Alexandria‚ in 330 B.C. Euclid described
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HYPERBOLIC GEOMETRY AND OMEGA TRIANGLES Hyperbolic geometry was first discovered and explored by Omar Khayyam in the 9th century and Giovanni Gerolamo Saccheri in the 15th century. Both were attempting to prove Euclid’s parallel postulate by proving the concept of hyperbolic geometry to be inconsistent‚ and ironically they discovered it to be a new type of geometry. It wasn’t until the 19th century that it became fully developed with help from Karl Friedrich Gauss‚ Janos Bolyai‚ and Nikolai
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