PDF-On Understanding Data Abstraction Revisited William R

Cook University of Texas at Austin wcookcsutexasedu Abstract In 1985 Luca Cardelli and Peter Wegner my advisor pub lished an ACM Computing Surveys paper called On un derstanding types data abstraction and polymorphism Their work kicked off a 64258oo. Greta . Yorsh. Eran. . Yahav. Martin . Vechev. IBM Research. { . . ………………. . …… . ………………….. . …………………….. …………………………. }. P1(). of Synchronization. Greta . Yorsh. Eran. . Yahav. Martin . Vechev. IBM Research. { . . ………………. . …… . ………………….. . …………………….. …………………………. Occurs through a process of . simplification. or . distortion. in an attempt to communicate an . essential aspect. of a form or concept. Varying degrees of resemblance to the real world. Abstraction. Richard Gesick. Abstraction. the mechanism and practice of . abstraction. reduces and factors out details so that one can focus on a few concepts at a time. The concept . originated by analogy with abstraction in . Techniques. – A . Practical Application Perspective. March . 2014. Presentation summary on the work in. Neumayr. , B., . Schrefl. , M., & . Thalheim. , B. (2011). . Modeling. techniques for multi-level abstraction. . with Bounds. Outline. Motivation. Abstractions . of extensive-form games. Theoretical guarantees on abstraction quality. Computing . abstractions. Hardness. Algorithms. Experiments. Nash equilibrium. Basic understanding of what HTTP is. HTTP like DNS is an ASCII-text based protocol - it’s just two computers sending text messages to each other. . What makes it a protocol are the rules of the “conversation” the two machines are having. . William’s Effective Leadership. As the victorious general, William might have won because of his own actions.. Evidence you could use:. William took full advantage of . Godwinson. visiting Normandy in 1064 and made him swear an oath on religious relics, as well as knighting him. This helped William portray . Tushar Sharma. and Thomas Reps. SAS’17. Motivations. Prove Program Assertions. Function and loop summaries. Sound with respect to . bitvectors. A New Abstraction Framework for Affine Transformers. T. Sharma and T. Reps. SAS'17. . The Battle of Hastings. in 1066. The Battle of Hastings is one of the most famous ever fought.. Why did it happen?. Who took part?. Why is it important?. Let’s have a look at some people involved.. Kenny Denmark. Jason Isenhower. Ross Roessler. Background. A* uses heuristics for efficient searching. Initially, heuristics provided by "expert". Challenge is to have program create heuristics. Where has all my stuff gone ? Abstraction in the physical world Yaakov (J) Stein CTO, RAD There are 2 techniques frequently used to solve hard problems and which have been raised to an art in computer science Way of classifying information from abstract (general) to concrete (specific) . . Level 4:. Abstractions. Level 3: . Noun Classes, broad group names with little specification. Level 2:. Noun Categories, more definite groups. Slide . 1. PHY Abstraction for MU-MIMO. Date:. 2010-07-11. Authors: . Name. Affiliations. Address. Phone. email. Riichi Kudo. NTT Corporation. Hikarino-oka Yokosuka-shi Japan. +81-46-859- 3140. kudo.riichi@lab.ntt.co.jp.