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  2. Bottom–up and top–down design - Wikipedia

    en.wikipedia.org/wiki/Bottom–up_and_topdown...

    Top–down methods were favored in software engineering until the late 1980s, [2] [failed verification] and object-oriented programming assisted in demonstrating the idea that both aspects of top-down and bottom-up programming could be used. Modern software design approaches usually combine top–down and bottomup approaches. Although an ...

  3. Bottom-up - Wikipedia

    en.wikipedia.org/wiki/Bottom-up

    Bottom-up parsing, a computer science strategy; Bottom-up processing, in Pattern recognition (psychology) Bottom-up theories of galaxy formation and evolution; Bottom-up tree automaton, in data structures; Bottom-up integration testing, in software testing; Top-down and bottom-up design, strategies of information processing and knowledge ordering

  4. Top-down proteomics - Wikipedia

    en.wikipedia.org/wiki/Top-down_proteomics

    Top-down vs bottom-up proteomics. Top-down proteomics is a method of protein identification that either uses an ion trapping mass spectrometer to store an isolated protein ion for mass measurement and tandem mass spectrometry (MS/MS) analysis [1] [2] or other protein purification methods such as two-dimensional gel electrophoresis in conjunction with MS/MS. [3] Top-down proteomics is capable ...

  5. Top-down - Wikipedia

    en.wikipedia.org/wiki/Top-down

    Top-down and bottom-up design of information ordering; Top-down parsing, a parsing strategy beginning at the highest level of the parse tree Top-down parsing language, an analytic formal grammar to study top-down parsers; Top-down perspective, a camera angle in computer and video games; Top-down shooter, a subgenre of video games

  6. Systems biology - Wikipedia

    en.wikipedia.org/wiki/Systems_biology

    These are the top down and bottom up approach. The top down approach takes as much of the system into account as possible and relies largely on experimental results. The RNA-Seq technique is an example of an experimental top down approach. Conversely, the bottom up approach is used to create detailed models while also incorporating experimental ...

  7. Fundamental analysis - Wikipedia

    en.wikipedia.org/wiki/Fundamental_analysis

    Investors using fundamental analysis can use either a top-down or bottom-up approach. The top-down investor starts their analysis with global economics, including both international and national economic indicators. These may include GDP growth rates, inflation, interest rates, exchange rates, productivity, and energy prices. They subsequently ...

  8. 'I prefer across the board': Trump's top tariff man favors ...

    www.aol.com/finance/prefer-across-board-trumps...

    Tariffs came up again and again ahead of a Feb. 1 deadline for when Trump's first tariffs could be imposed. Trump has referred to Lutnick as the official who "will lead our Tariff and Trade agenda."

  9. Bottom-up parsing - Wikipedia

    en.wikipedia.org/wiki/Bottom-up_parsing

    Top-down parsing eagerly decides what a construct is much earlier, when it has only scanned the leftmost symbol of that construct and has not yet parsed any of its parts. Left corner parsing is a hybrid method that works bottom-up along the left edges of each subtree, and top-down on the rest of the parse tree.