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Learn how to communicate effectively through presentation style, using slides, and preparing compelling narratives. Discover dos and don'ts for slide content and delivery, with practical examples and future work suggestions.
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Part III.Presentation Style How you do it also matters
Overview How to say things How NOT to say things Slides to use Slides NOT to use
Preparation First: Narrative Next: Slides
Mechanics • Detrmine what you will say • Figure what type of visual would help most • Create your visual • Test-drive in your head • Test-drive on others • Make improvements
How much to put on a single slide? • Not too much
y y y y x x x z z z x Applying Normal Maps to the Implicit Surface Mark Barry
Dual Contouring With Normal Map Extraction • Same process as just described • Generate polygons, project vertices, etc. • Simple “search” space for finest-level contour vertices • Only difference: • Polygons generated: quads & triangles • Quads span four cubes • Only have to collect finest-level contour vertices from the four cubes Mark Barry
Future Work • Pre-process the DOMrather than re-evaluating the indices each time • Efficient algorithms to store and retrieve intermediate results. • Comparisons can be performed with other proposed solutions and it would be helpful in finding the different areas for improvement. Karthikeyan S.
Future work / Conclusions • Three or more join relations • Non numeric data • Real mobile environment • Levels of abstraction (signatures) • Multiple Join attributes • Promising results Saad Ijad
Avoid full sentences • Noone reads them • Clutter • Notes to self • Stops you from reading
BAYESIAN NETWORK • A Bayesian network for a set of variables X = {X1…Xn} consists of (1) a network structure S that encodes a set of conditional independence assertions about variables in X, and (2) a set P of local probability distributions associated with each variable.
P(x2|x1) A B C x1 A 0.1 0.4 0.5 B 0.2 0.7 0.1 C 0.3 0.3 0.4 x3 P(x3) A 0.4 B 0.3 C 0.3 x1 P(x1) A 0.1 B 0.3 C 0.6 Bayesian Network B = <G, P> G = <X, E> - Directed Acyclic Graph X = {x1,…,xN} – Discrete random Variables P: conditional probability tables x2 x1 x5 x3 x4
Avoid reading your slides Corollary: A picture is worth a thousand words
Background Charles Wei • What is an ontology? • describes basic concepts in a domain and defines relations among them. • provides the basic blocks in its structure • provides a common vocabulary for researchers who need to share information in a specific domain
Background Charles Wei • Goals of using an ontology • share common understanding of the structure of information among people or software agents • enable reuse of domain knowledge • make domain assumptions explicit • separate domain knowledge from operational knowledge • analyze domain knowledge
Background Charles Wei • The experience of using an ontology • Easier to understand, but creating an ontology is… • Easier to reuse, but creating an ontology is … • Easier to implement, but creating an ontology is … • So, is there anyway to improve the process of creating an ontology?
Background Charles Wei • Ontology creation – related works • generating an ontology from text-based documents • extracting the concepts and relationships from large quantities of data • making a model-based ontology, which extracts the concepts and relationships from specifications, formalizations and computer-generated artifacts
Background Charles Wei • Generating an ontology from text-based documents • from a given collection of textual resources by applying natural language processing and machine learning techniques. • requires significant computational effort on natural language processing • is still difficult to working on the knowledge which resides in different languages
Background Charles Wei • Extracting the concepts and relationships from large quantities of data • Data mining and Formal Concept Analysis • The original concepts exist in human’s mind. • The transformation from ideas to formal knowledge is necessary • Same problems as generating an ontology from text-based documents
Background Charles Wei • Making a model-based ontology • Adjustment: forming instead of extracting • form the concepts and relationships from specifications, formalizations and computer-generated artifacts • Manually input instead information extraction from existing documents
Background Charles Wei • Seamless integration of new input interface • More intuitive and simplified information input process • Working with model-based ontology with a better input interface • Categorize classes and instances automatically • Implement bottom-up approach and demonstrate the ability to help on creating an ontology
Nine slides describing ontologies … without a picture!!!
Ontologies • Describe basic concepts • Define relations among them • basic blocks • common vocabulary for a specific domain Media Action Movies Horror Comedy Music Classical Jazz Modern Fiction Books Non-Fictionl
DON’T Quote verbatim from your thesis
DON’T Quote verbatim from your thesis Exception: Formal definitions that need to be read
DON’T DO Copy-and-paste diagrams from thesis Create diagrams for presentations
Approach Overview Slot 1 Slot 2 Slot 3 : : Slot N Slot 1 Slot 2 : : Slot N Slot N+ 1 : : Slot M Class B Class A Instance A Slot 1 Slot 2 : : Slot N Slot N+ 1 : : Slot M Slot P : : Slot Q Slot 1 Slot 2 : : Slot N Slot N+ 1 : : Slot M Slot R : : Slot S Class C Class D Charles Wei Before insertion
KyGODDAG Swati Tata
Characteristics of an ODS Star Schema Chad Smith
Star Schema Fact tables --- hold the “measured” data of the business (i.e. sales transactions); contain the majority of ODS data Dimension tables --- pre-joined to the fact table(s) via FK relationships; usually contain a fixed # of records (i.e. store locations) Fact table(s) are de-normalized to reduce table joins and improve query performance. Product ------- ------- ------- Orders product store customer shipment ------- ------- ------- ------- Customer ------- ------- ------- Shipment ------- ------- ------- Store ------- ------- -------
Characteristics of an ODS Extract/Transform/Load (ETL) Chad Smith
Extract/Transform/Load (ETL) E --- extract data from the primary data source(s) T --- transform source data into a format compliant with the destination L --- load the transformed source data ETL steps are often combined into a single process. ETL ETL ODS source applications application databases data mart / data warehouse target applications