basic concepts decision trees and model evaluation

... used to determine the accuracy of the model Usually, the given data set is divided into training and test sets, with training set used to build the model and test set used to validate it © Tan,Steinbach, ... Divorced TaxInc < 80K NO Married NO > 80K YES 10 Model: Decision Tree Training Data © Tan,Steinbach, Kumar Introduction to Data Mining Another Example of Decision Tree s al al ic ic ou r r u s go go ... Tan,Steinbach, Kumar Introduction to Data Mining Decision Tree Classification Task Decision Tree © Tan,Steinbach, Kumar Introduction to Data Mining Apply Model to Test Data Test Data Start from the...

Ngày tải lên: 15/03/2014, 09:20

Ngày tải lên: 13/05/2014, 09:34

... highcoverage lexicon and a set of empirically induced decision trees into a POS tagger achieving ~5,5% error rate for POS disambiguation and ~16% error rate for unknown word guessing The decision- tree ... algorithm used to transform TS into a decision tree belongs to the TDIDT (Top Down Induction of Decision Trees) family (Quinlan, 1986) Based on the divide and conquer principle, it selects the ... the decision tree The POS of an unknown word is guessed by traversing the decision tree for unknown words, which examines contextual features along with the word ending and capitalization and...

Ngày tải lên: 22/02/2014, 03:20

... each candidate itemset – To reduce the number of comparisons, store the candidates in a hash structure • Instead of matching each transaction against every candidate, match it against candidates ... are 2d possible candidate itemsets Frequent Itemset Generation Brute-force approach: – Each itemset in the lattice is a candidate frequent itemset – Count the support of each candidate by scanning ... structures to store the candidates or transactions – No need to match every candidate against every transaction © Tan,Steinbach, Kumar Introduction to Data Mining 11 Reducing Number of Candidates Apriori...

Ngày tải lên: 15/03/2014, 09:20

... objective function approach is to fit the data to a parameterized model • Parameters for the model are determined from the data • Mixture models assume that the data is a ‘mixture' of a number of statistical ... from other regions of high density – Used when the clusters are irregular or intertwined, and when noise and outliers are present density-based clusters © Tan,Steinbach, Kumar Introduction to Data ... Introduction to Data Mining Applications of Cluster Analysis Understanding – Group related documents for browsing, group genes and proteins that have similar functionality, or group stocks with...

Ngày tải lên: 15/03/2014, 09:20

... size and therefore for the fifth edition, the decision was taken to divide the book into two volumes: basic concepts and clinical concepts The decision to make the split a purely physical one, and ... periodontium, 48 Basic bone biology, 86 Bone cells, 86 Modeling and remodeling, 87 Growth factors and alveolar bone healing, 88 Local and systemic factors affecting bone volume and healing, 89 ... Richard Palmer and Mena Soory Diabetes mellitus, 307 Type and type diabetes mellitus, 307 Clinical symptoms, 308 Oral and periodontal effects, 308 Association of periodontal infection and diabetic...

Ngày tải lên: 15/03/2014, 12:20

... female population in the reproductive age, and up to 40–80% of women complaining of pelvic pain) and the significant morbidity Endometriosis - Basic Concepts and Current Research Trends associated ... progesterone and androgen are mediated through their respective receptors - Estrogen Receptors (ER), Progesterone Receptors (PR) Endometriosis and Androgen Receptors (AR) - these receptors must be and ... both estrogen and progesterone receptors and respond to changes of hormonal levels with bleeding or production and release of inflammatory mediators, especially prostaglandins E2 and F For a long...

Ngày tải lên: 30/03/2014, 19:20

... differentials and Euler’s theorem, because many concepts and derivations can be presented in a more satisfying and precise manner with their use Chemical Thermodynamics: Basic Concepts and Methods, ... foundations and interrelationships of thermodynamics and to teach the student the methods by which the basic concepts may be applied to practical problems In the treatment of basic concepts, we ... a Gibbs Function of a Reaction from Standard Gibbs Function of Formation / 286 12.5 Calculation of a Standard Gibbs Function from Standard Entropies and Standard Enthalpies / 287 Enthalpy Calculations...

Ngày tải lên: 02/04/2014, 16:43

... = c1 |1 + c2 |2 , where the states |1 , |2 , and (all) |α can be observed as phys- Basic Concepts and their Interpretation ically different states, and distinguished from one another in an appropriate ... prediction of new particles formed as superpositions of K-mesons and their antiparticles (Gell-Mann and Pais 1955, Lee and Yang 1956) A similar model describes the recently confirmed “neutrino oscillations” ... correlations, which would define a “conspiracy” in common terminology (Joos and Zeh 1985, Zeh 2001) 2 2.2 Basic Concepts and their Interpretation 17 Observables as a Derived Concept Measurements...

Ngày tải lên: 24/04/2014, 17:13

... Nanoscale Calibration Standards and Methods S Reich, C Thomsen, J Maultzsch Dimensional and Related Measurements in the Micro- and Nanometer Range Carbon Nanotubes 2005 Basic Concepts and Physical Properties ... household appliances and related tools and devices provide handy user’s instructions and manuals The situation changes when one tries to experiment and create something uncommon and unusual, by suitably ... monomers and radicals to chain and aromatic polymers and macromolecules, atomic and molecular clusters, small grains and nanocrystallites and even particle agglomerates and mesoparticles Amazingly,...

Ngày tải lên: 04/06/2014, 14:49

... Reich, C Thornsen, J Maultzsch Carbon Nanotubes Basic Concepts and Physical Properties S Reich, C Thornsen,J Maultzsch Carbon Nanotubes Basic Concepts and Physical Properties W I LEYVCH WILEY-VCH ... Introduction electronic hand structure in the optical range and near the Fermi level (Chaps and 5) We introduce the reader to thc elastic properties of nanotubes in Chap and lo basic concepts in Raman ... LAz = TZnDnh L2nn/mcm = (armchair and zig-zag) (2.15) 14 Structure and Symmetry Figure 2.9: Horizontal rotational axes and mirror and glide planes of chiral and achiral tubes Left: Chiral (X,6)...

Ngày tải lên: 04/06/2014, 15:05

... hardware level) models and (ii) instruction level models Architecture level models calculate power and energy from detailed descriptions that may comprise circuit level, gate level, and register ... (Performance and Energy Consumption Evaluation of Embedded Systems) It receives the annotated source code and the architecture model as input and returns the average execution time and energy consumption ... Power and Timing Modeling, Optimization and Simulation (PATMOS ’01), pp 311–316, Yverdon-Les-Bains, Switzerland, September 2001 [13] A Zimmermann, Stochastic Discrete Event Systems: Modeling, Evaluation, ...

Ngày tải lên: 21/06/2014, 11:20

... decisionmaking, and action execution Neuro-Cognitive Model for Environment Recognition, Decision Making, and Action Execution An overview about the developed model is given in Figure The model consists ... execution of actions selected by the pre -decision module Model Implementation and Use Case Description In order to a first verification and evaluation of the model, it was implemented as a computational ... Overview of neuro-cognitive model for environment recognition, decision- making, and action execution brain in the process of environment recognition, decisionmaking, and action execution According...

Ngày tải lên: 21/06/2014, 11:20

... mobility models in MANET simulation is the random walk mobility model [4] In this model, the movement direction and speed at some time t + Δt has no relationship with the direction and speed ... makes this model memoryless, and generates a nonrealistic movement for each MN, presenting sharp turns, sudden stops, and accelerations Some other models based on the random walk mobility model have ... Analytical modeling The SIMM model uses two Markov chains with discrete parameters and states (0, 1, and 2), to represent movements in the x- and y-coordinate, with changes in coordinates x and y...

Ngày tải lên: 22/06/2014, 19:20

... female population in the reproductive age, and up to 40–80% of women complaining of pelvic pain) and the significant morbidity Endometriosis - Basic Concepts and Current Research Trends associated ... progesterone and androgen are mediated through their respective receptors - Estrogen Receptors (ER), Progesterone Receptors (PR) Endometriosis and Androgen Receptors (AR) - these receptors must be and ... both estrogen and progesterone receptors and respond to changes of hormonal levels with bleeding or production and release of inflammatory mediators, especially prostaglandins E2 and F For a long...

Ngày tải lên: 27/06/2014, 09:20

... build height-unrestricted trees decision trees tend to find complex and long rules, making rule applicability and interpretation difficult Also, in such case decision trees find few predictive rules ... {x, y, z}) and a predicted value c for class C In general decision trees have reasonable accuracy and are easy to interpret if the tree has a few nodes Detailed discussion on decision trees can ... Predictive Rules from Decision Trees In this section we explain experiments using decision trees We used the CN4.5 decision tree [14] algorithm using gain ratio for splitting and pruning nodes Due...

Ngày tải lên: 27/06/2014, 21:20

... and under a heating light during both ischemia and reperfusion Rectal temperature was measured before clamping of the left lung hilum and before killing and was held constantly between 36.8 and ... green and Haemaluin Carazzi to reveal T cells and macrophages, respectively Light-microscopy investigation All slides were evaluated in random order The first field was chosen at random and the ... pulmonary endothelium and parenchyma by delivering elastase and other proteases [3] Third, the cell membrane of activated neutrophils becomes rigid and adhesion between neutrophils and endothelial...

Ngày tải lên: 12/08/2014, 20:20

... of Technology, Faculty of Mechanical Engineering Basic Concepts and Terminology Nguyen Tan Tien Control System Technology 1.03 Basic Concepts and Terminology §1 Introduction - A control system ... Technology 1.25 Basic Concepts and Terminology §4 Closed-Loop Control HCM City Univ of Technology, Faculty of Mechanical Engineering Nguyen Tan Tien Control System Technology 1.26 Basic Concepts and Terminology ... Technology 1.17 Basic Concepts and Terminology §2 Block Diagrams and Transfer Functions 2.2 Transfer functions - Example: For a temperature-measuring sensor, the input is temperature, and the output...

Ngày tải lên: 29/10/2014, 07:00

Ngày tải lên: 14/11/2014, 09:15

... ligand, and Fas ligand They bias towards macrophage activation, which leads to inflammation and a cell-mediated immune response, dominated by cytotoxic CD8+ T cells and/ or CD4+ Th cells, and ... the pituitary gland secretes thyrotropin (TSH) which stimulates iodine trapping and increasing cAMP, thus thyroid hormone synthesis, and release of T3 and T4 by the thyroid gland TSH is regulated ... no satisfactory and effective therapy available to stop the progression of this disabling and sightthreatening illness Therefore, a mouse model of GD and GO presents a unique and attractive opportunity...

Ngày tải lên: 07/10/2015, 09:55