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Islam TeCNo

Database - Wikipedia, the free encyclopedia - 0 views

shared by Islam TeCNo on 08 Jun 09 - Cached
  • A database is a structured collection of records or data that is stored in a computer system. The structure is achieved by organizing the data according to a database model. The model in most common use today is the relational model. Other models such as the hierarchical model and the network model use a more explicit representation of relationships
    • Abdelrahman Ogail
       
      Database official definition
    • Islam TeCNo
       
      yes .... bas a3taked en el wa7ed yfham ahm b keter men eno ye3ref el Definition (dah mogarad test post hehe )
    • Islam TeCNo
       
      But in File Stucter we took that database is set of related files
  • increase their speed
  • common kind of index is a sorted list of the contents of some particular table column, with pointers to the row associated with the value
  • ...1 more annotation...
  • Typically, indexes are also stored in the various forms of data-structure mentioned above (such as B-trees, hashes, and linked lists)
Ahmed Mansour

CRC Cards Tutorial - 0 views

  • Object Oriented Analysis and Design using CRC Cards
  • A CRC cards is an index card that is use to represent the responsibilities of classes and the interaction between the classes. CRC cards are an informal approach to object oriented modeling. The cards are created through scenarios, based on the system requirements, that model the behavior of the system. The name CRC comes from Class, Responsibilities, and Collaborators which the creators found to be the essential dimensions of object oriented modeling.
    • Ahmed Mansour
       
      One of the most popular methods for identifying and categorizing classes is to use class-responsibility-collaboration cards (CRC). Each CRC card represents a single class's data attributes, responsibilities, and collaborations. source : Thought Process Book..
    • Ahmed Mansour
       
      You need to create three sections on each card: - The name of the class - The responsibilities of the class - The collaborations of the class
  • Why uses CRC cards?
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  • They are portable... No computers are required so they can be used anywhere. Even away from the office. The allow the participants to experience first hand how the system will work. No computer tool can replace the interaction that happens by physically picking up the cards and playing the roll of that object... The are a useful tool for teaching people the object-oriented paradigm. They can be used as a methodology them selves or as a front end to a more formal methodology such as Booch, Wirfs-Brock, Jacobson, etc.
  • Tutorial
    • Ahmed Mansour
       
      here we can found simple tutorial for illustration...
  • A CRC cards is an index card that is use to represent the responsibilities of classes and the interaction between the classes. CRC cards are an informal approach to object oriented modeling. The cards are created through scenarios, based on the system requirements, that model the behavior of the system. The name CRC comes from Class, Responsibilities, and Collaborators which the creators found to be the essential dimensions of object oriented modeling.
  • Why uses CRC cards? They are portable... No computers are required so they can be used anywhere. Even away from the office. The allow the participants to experience first hand how the system will work. No computer tool can replace the interaction that happens by physically picking up the cards and playing the roll of that object... The are a useful tool for teaching people the object-oriented paradigm. They can be used as a methodology them selves or as a front end to a more formal methodology such as Booch, Wirfs-Brock, Jacobson, etc.
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    This is great tutorial for CRC cards ( sort of object oriented modeling approach) \ni think it was useful for me ... hoping to be useful for all of us : ) ..
computersciencej

TCP/IP model questions based Study Material for gate Computer Science - 0 views

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    TCP/IP protocol based questions for gate computer science exam Q1.What is the difference between transport and session layer of OSI model. Answer: OSI Model Transport Layer The transport layer uses the services provided by the network layer, such as best path selection and logical addressing, to provide end-to-end communication between source and destination. • The transport -layer data stream is a logical connection between the endpoints of a network. • End-to-end control is provided by sliding windows and reliability in sequencing numbers and acknowledgments. The transport layer regulates information flow to ensure end-to-end connectivity between host applications reliably and accurately. • The TCP/ IP protocol of Layer 4 (t transport t layer ) has two protocols. They are TCP and UDP. The transport layer accepts data from the session layer and segments the data for transport across the network. Generally, the transport layer is responsible for making sure that the data is delivered error-free and in the proper sequence. Flow control generally occurs at the transport layer. OSI Model Session Layer The session layer establishes, manages, and terminates communication sessions. Communication sessions consist of service requests and service responses that occur between applications located on different network devices. These requests and responses are coordinated by protocols implemented at the session layer. The session layer establishes, manages, and terminates sessions between applications Functions of the session layer and the different processes that occur as data packets travel through this layer. More specifically, you learned that Communication sessions consist of mini-conversations that occur between applications located on different network devices. Requests and responses are coordinated by protocols implemented at the session layer. • The session layer decides whether to use two-way simultaneous communication or two-way alternate communicati
Islam TeCNo

Model-view-controller - Wikipedia, the free encyclopedia - 0 views

  • Model–view–controller (MVC) is an architectural pattern used in software engineering. Successful use of the pattern isolates business logic from user interface considerations, resulting in an application where it is easier to modify either the visual appearance of the application or the underlying business rules without affecting the other. In MVC, the model represents the information (the data) of the application; the view corresponds to elements of the user interface such as text, checkbox items, and so forth; and the controller manages the communication of data and the business rules used to manipulate the data to and from the model.
    • Abdelrahman Ogail
       
      MVC one of the important patterns used at any software. Especially in Web Development, Database Systems and sure in Game Development
    • Islam TeCNo
       
      please ya zikas 7ot more comments l eni mesh fahem awi ...ana eli fahmo eni afsl el GUI 3an el core code
  • MVC is often seen in web applications, where the view is the actual HTML or XHTML page, and the controller is the code that gathers dynamic data and generates the content within the HTML or XHTML. Finally, the model is represented by the actual content, which is often stored in a database or in XML nodes, and the business rules that transform that content based on user actions.
    • Islam TeCNo
       
      i think this is like PHP or ASP page .... you just See HTML (view) that is Generated by PHP/ASP Code (controller) that gather data from Database (content)
Abdelrahman Ogail

Flocking (behavior) - Wikipedia, the free encyclopedia - 0 views

  • Flocking behavior is the behavior exhibited when a group of birds, called a flock, are foraging or in flight. There are parallels with the shoaling behavior of fish, or the swarming behavior of insects. Computer simulations and mathematical models which have been developed to emulate the flocking behaviors of birds can generally be applied also to the "flocking" behavior of other species. As a result, the term "flocking" is sometimes applied, in computer science, to species other than birds. This article is about the modelling of flocking behavior. From the perceptive of the mathematical modeller, "flocking" is the collective motion of a large number of self-propelled entities and is a collective animal behavior exhibited by many living beings such as birds, fish, bacteria, and insects.[1] It is considered an emergent behaviour arising from simple rules that are followed by individuals and does not involve any central coordination. Flocking behavior was first simulated on a computer in 1986 by Craig Reynolds with his simulation program, Boids. This program simulates simple agents (boids) that are allowed to move according to a set of basic rules. The result is akin to a flock of birds, a school of fish, or a swarm of insects.
  • Flocking behavior is the behavior exhibited when a group of birds, called a flock, are foraging or in flight. There are parallels with the shoaling behavior of fish, or the swarming behavior of insects. Computer simulations and mathematical models which have been developed to emulate the flocking behaviors of birds can generally be applied also to the "flocking" behavior of other species. As a result, the term "flocking" is sometimes applied, in computer science, to species other than birds. This article is about the modelling of flocking behavior. From the perceptive of the mathematical modeller, "flocking" is the collective motion of a large number of self-propelled entities and is a collective animal behavior exhibited by many living beings such as birds, fish, bacteria, and insects.[1] It is considered an emergent behaviour arising from simple rules that are followed by individuals and does not involve any central coordination. Flocking behavior was first simulated on a computer in 1986 by Craig Reynolds with his simulation program, Boids. This program simulates simple agents (boids) that are allowed to move according to a set of basic rules. The result is akin to a flock of birds, a school of fish, or a swarm of insects.
Islam TeCNo

Belief-Desire-Intention software model - Wikipedia, the free encyclopedia - 0 views

  • The Belief-Desire-Intention (BDI) software model (usually referred to simply, but ambiguously, as BDI) is a software model developed for programming intelligent agents. Superficially characterized by the implementation of an agent's beliefs, desires and intentions, it actually uses these concepts to solve a particular problem in agent programming. In essence, it provides a mechanism for separating the activity of selecting a plan (from a plan library) from the execution of currently active plans. Consequently, BDI agents are able to balance the time spent on deliberating about plans (choosing what to do) and executing those plans (doing it). A third activity, creating the plans in the first place (planning), is not within the scope of the model, and is left to the system designer and programmer.
    • Abdelrahman Ogail
       
      This model is used to simulate human behavior its under area of research and its so interesting and innovative
    • Islam TeCNo
       
      nice ..... dah tab3an related lel AI !
Abdelrahman Ogail

Artificial life - Wikipedia, the free encyclopedia - 2 views

  • Artificial life (commonly Alife or alife) is a field of study and an associated art form which examine systems related to life, its processes, and its evolution through simulations using computer models, robotics, and biochemistry.[1] There are three main kinds of alife[2], named for their approaches: soft[3], from software; hard[4], from hardware; and wet, from biochemistry. Artificial life imitates traditional biology by trying to recreate biological phenomena.[5] The term "artificial life" is often used to specifically refer to soft alife
  • The modeling philosophy of alife strongly differs from traditional modeling, by studying not only “life-as-we-know-it”, but also “life-as-it-might-be” [7].
Abdelrahman Ogail

Belief-Desire-Intention software model - Wikipedia, the free encyclopedia - 0 views

  • The Belief-Desire-Intention (BDI) software model (usually referred to simply, but ambiguously, as BDI) is a software model developed for programming intelligent agents. Superficially characterized by the implementation of an agent's beliefs, desires and intentions, it actually uses these concepts to solve a particular problem in agent programming. In essence, it provides a mechanism for separating the activity of selecting a plan (from a plan library) from the execution of currently active plans. Consequently, BDI agents are able to balance the time spent on deliberating about plans (choosing what to do) and executing those plans (doing it). A third activity, creating the plans in the first place (planning), is not within the scope of the model, and is left to the system designer and programmer.
    • Abdelrahman Ogail
       
      Stress on the point "BDI Agents spent time about choosing what to do more that how to execute them"
Janos Haits

Wolfram Neural Net Repository of Neural Network Models - 1 views

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    "The Wolfram Neural Net Repository is a public resource that hosts an expanding collection of trained and untrained neural network models, suitable for immediate evaluation, training, visualization, transfer learning and more."
Abdelrahman Ogail

Belief-Desire-Intention model - Wikipedia, the free encyclopedia - 1 views

  • The Belief-Desire-Intention (BDI) model of human practical reasoning was developed by Michael Bratman as a way of explaining future-directed intention. BDI is fundamentally reliant on folk psychology (the 'theory theory'), which is the notion that our mental models of the world are theories.
Islam TeCNo

Scalability - Wikipedia, the free encyclopedia - 0 views

  • In telecommunications and software engineering, scalability is a desirable property of a system, a network, or a process, which indicates its ability to either handle growing amounts of work in a graceful manner, or to be readily enlarged.[1] For example, it can refer to the capability of a system to increase total throughput under an increased load when resources (typically hardware) are added. An analogous meaning is implied when the word is used in a commercial context, where scalability of a company implies that the underlying business model offers the potential for economic growth within the company.
    • Abdelrahman Ogail
       
      In web applications, the client objects are removed from the server when they are sent to the client browser. This is great for scalability, but it can hurt the user and developer experience
    • Islam TeCNo
       
      mesh fahem ya Zikas commentak :D. we men el examples 3ala el scalabilty ...Gooogle we Gmail
    • Abdelrahman Ogail
       
      In Web applications client data are saved on the server (then the server memory is decreased that decreases the scalability - الإستيعاب-) So removing the client data improvers scalability becuase it saves server memory
    • Islam TeCNo
       
      ahaa :D Keshta.... ya3ni by3mlo delete 3ala el server ba3d lama el client ye3mel download :D hehe
Janos Haits

Numenta | NuPIC - 0 views

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    Numenta.org Platform for Intelligent Computing The mission of this project is to build and support a community interested in machine learning and machine intelligence based on modeling the neocortex and the principles upon which it works.
Janos Haits

Magenta - 0 views

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    "Magenta is a Google Brain project to ask and answer the questions, "Can we use machine learning to create compelling art and music? If so, how? If not, why not?" Our work is done in TensorFlow, and we regularly release our models and tools in open source. These are accompanied by demos, tutorial blog postings and technical papers. To follow our progress, watch our GitHub and join our discussion group."
Janos Haits

TensorFlow Quantum - 1 views

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    "TensorFlow Quantum is a library for hybrid quantum-classical machine learning. TensorFlow Quantum (TFQ) is a quantum machine learning library for rapid prototyping of hybrid quantum-classical ML models. Research in quantum algorithms and applications can leverage Google's quantum computing frameworks, all from within TensorFlow."
Janos Haits

OExchange - 0 views

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    OExchange makes it possible to share any URL-based content with any service on the web. It defines: A common way for services to receive content, removing any and all service-specific integration requirements A discovery feature so services can publish themselves and their endpoints, making it possible to integrate with services you didn't even know about at development time A decentralized, user-centric model for saving preferred services, making sharing more personal
Janos Haits

Artificial Intelligence (AI) Machine Learning Advanced Technology Platform - 0 views

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    "Our 2021.AI platform offers everything your team needs in one open platform, allowing your organization to manage team collaboration across heterogeneous infrastructure efficiently and deploy models effectively. Should you decide that you do not have the appetite to build such capacity and capabilities in-house, we will offer you data sciences as a service, ensuring your participation in harvesting and maximizing business benefits with a minimal organizational imprint."
Janos Haits

OpenAI API - 0 views

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    "Build next-gen apps with OpenAI's powerful models. Access GPT-3, which performs a variety of natural language tasks, Codex, which translates natural language to code, and DALL·E, which creates and edits original images."
veera90

Expert Biostatistics Services | Biostatistics | ACL Digital Life Sciences | IT Consulting - 0 views

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    Biostatistics plays a vital role in clinical research. From protocol development and clinical trial designs to sample size calculation, data analysis and more, our team of Biostatisticians have the right SME expertise in multiple therapeutic areas to help deliver quality outcomes quickly and efficiently. You can rely on us to determine and apply the appropriate statistical model, write CSR sections to interact with regulatory authorities, and examine the efficacy of safety data. Innovative and insight-driven statistical methods play a crucial role in every step of the drug development process. At ACL Digital, biostatistics remains an integral part of our services.
Janos Haits

Chat with Open Large Language Models - 0 views

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    "hatbot Arena is an open-source research project developed by members from LMSYS and UC Berkeley SkyLab. Our mission is to build an open crowdsourced platform to collect human feedback and evaluate LLMs under real-world scenarios. We open-source our FastChat project at GitHub and release chat and human feedback datasets here. We invite everyone to join us in this journey!"
Janos Haits

Galactica Demo - 1 views

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    "Thanks everyone for trying the Galactica demo. Read more about the research below." Galactica: A Large Language Model for Science
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