Design Patterns Summer Course 2009-2010 - Session#2
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This document discusses the observer pattern. It begins with an example problem of wanting to change enemy speed and gem color when the player collects a gem. The first implementation had code smells. The document then introduces the observer pattern as a solution. It shows the class diagram and discusses implementing the pattern in C#. Common uses of the pattern are presented. Finally, it recommends further reading about design patterns in specific books.
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This OrionX's 14th semi-annual report on the state of the cryptocurrency mining market. The report focuses on Proof-of-Work cryptocurrencies since those use substantial supercomputer power to mint new coins and encode transactions on their blockchains. Only two make the cut this time, Bitcoin with $18 billion of annual economic value produced and Dogecoin with $1 billion. Bitcoin has now reached the Zettascale with typical hash rates of 0.9 Zettahashes per second. Bitcoin is powered by the world's largest decentralized supercomputer in a continuous winner take all lottery incentive network.The Future of Technology: 2025-2125 by Saikat Basu.pdf
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A peek into the next 100 years of technology. From Generative AI to Global AI networks to Martian Colonisation to Interstellar exploration to Industrial Nanotechnology to Artificial Consciousness, this is a journey you don't want to miss. Which ones excite you the most? Which ones are you apprehensive about? Feel free to comment! Let the conversation begin!Security Tips for Enterprise Azure Solutions
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Delivering solutions to Azure may involve a variety of architecture patterns involving your applications, APIs data and associated Azure resources that comprise the solution. This session will use reference architectures to illustrate the security considerations to protect your Azure resources and data, how to achieve Zero Trust, and why it matters. Topics covered will include specific security recommendations for types Azure resources and related network security practices. The goal is to give you a breadth of understanding as to typical security requirements to meet compliance and security controls in an enterprise solution.Key Requirements to Successfully Implement Generative AI in Edge DevicesOpt...
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For the full video of this presentation, please visit: https://www.edge-ai-vision.com/2025/06/key-requirements-to-successfully-implement-generative-ai-in-edge-devices-optimized-mapping-to-the-enhanced-npx6-neural-processing-unit-ip-a-presentation-from-synopsys/
Gordon Cooper, Principal Product Manager at Synopsys, presents the Key Requirements to Successfully Implement Generative AI in Edge DevicesOptimized Mapping to the Enhanced NPX6 Neural Processing Unit IP tutorial at the May 2025 Embedded Vision Summit.
In this talk, Cooper discusses emerging trends in generative AI for edge devices and the key role of transformer-based neural networks. He reviews the distinct attributes of transformers, their advantages over conventional convolutional neural networks and how they enable generative AI.
Cooper then covers key requirements that must be met for neural processing units (NPU) to support transformers and generative AI in edge device applications. He uses transformer-based generative AI examples to illustrate the efficient mapping of these workloads onto the enhanced Synopsys ARC NPX NPU IP family.FIDO Seminar: Targeting Trust: The Future of Identity in the Workforce.pptx
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FIDO Seminar: Targeting Trust: The Future of Identity in the WorkforceYou are not excused! How to avoid security blind spots on the way to production
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Key Requirements to Successfully Implement Generative AI in Edge DevicesOpt...
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Design Patterns Summer Course 2009-2010 - Session#2
- 1. Lecture # 2 Ahmed Safwat Abdelrahman Z. Al-Ogail Muhamad Hesham
- 2. Call for a new requirement. First try for implementation. Bad smell code. Meet observer pattern. Pattern class diagram. Second try for implementation.(developing pattern in C#). Common uses. Whats next? (Further reading).
- 3. Call for new requirement Once the player collects a gem I want: Enemy increases its speed. Other gems change its color to a random color.
- 4. First try for implementation 1. We need find the place in code where the gem is tested for being collected. 2. We need modify enemy speed. 3. We need modify gem color.
- 5. Our code smells bad! What bad things we did ? 1. We expose private members to the public. 2. We are dependant on certain members. 3. Each time we need modify the level code.
- 6. Real life example Do you know how news paper subscribtion work ?
- 7. Publisher + Subscriber Publisher Not notified Subscribers
- 8. Publisher + Subscriber Publisher Subscribe Subscribers
- 9. Publisher + Subscriber Publisher Subscribers
- 10. Publisher + Subscriber I am not Publisher interested anymore Subscribers
- 11. Publisher + Subscriber Publisher Not notified Subscribers
- 12. Discovering Pattern Lets Google it!
- 13. Explaining the Pattern See how its easy!
- 14. Class Diagram Source: GoFs Book
- 15. Implementation Developing the pattern in C# See how we develop a pattern!
- 16. Call for new requirement Once the player die I want: Enemies speed is reset. Other gems change its color to black.
- 17. Just pattern it 1. We need find the place in code where the gem is player is tested for being dead. 2. We need reset enemy speed. 3. We need modify color gem with black.
- 18. Common Uses Source: GoFs Book Spreadsheets, Bar Graph and Pie Graph presentations of the same data. Chat Windows in IMs. RSS and News-feed. In Smalltalk programming language MVC Model: subject View: observers
- 19. Whats Next? Wait a minute! What about the rest Patterns explanation in GoF Pattern Name and Classification: A descriptive and unique name that helps in identifying and referring to the pattern Intent: A description of the goal behind the pattern and the reason for using it. Also Known As: Other names for the pattern Motivation (Forces): A scenario consisting of a problem and a context in which this pattern can be used.
- 20. Whats Next? Wait a minute! What about the rest Patterns explanation in GoF Consequences: A description of the results, side effects, and trade offs caused by using the pattern. Sample Code: An illustration of how the pattern can be used in a programming language Known Uses: Examples of real usages of the pattern. Related Patterns: Other patterns that have some relationship with the pattern; discussion of the differences between the pattern and similar patterns
- 21. Whats Next? Not Covered points Design Advantages of using this pattern: Objects are loosely coupled. Adding new observers at any time without effort. Changes in subject or observer dont effect the other
- 22. It is about times How they attended Lessons? How they managed their time? Reading while eating & walking Eating Ka`ak Results: Bagdad Library Saheb Abn Abbad`s Library Lon Gorand talking about his books 400 Hajri.
- 23. Whats Next Books to read Head First Design Patterns: Chapter # 2 GoF Behavioral Patterns Section