bottom-up strategy 中文意思是什麼
bottom-up strategy
解釋
自底向上策略-
In addition, the paper designs a bottom database model, selects a multi - aim strategy combining files with known data, and establishes dual interaction data model that has explicit conceptual structure and directly aims to geographic objects, and provides backing up enquiry language ( g - sql ). simultaneously, after analyzing and studying methods available for the under pipelines, the paper constructs survey adjustment calculation model, and according to the model, checks the survey of under pipelines. the results indicate that the model is suitable to actual requirement because it greatly increase calculation speed, meeting calculation accuracy requirement
在此基礎上，對系統的底層數據模型進行設計，選擇了文件與成熟數據庫相結合的混合策略，併兼顧面向對象的數據庫（ oodb ）和可擴充數據庫（ edb ）的特點，建立了一個概念層次清晰、面向地理對象實體的雙層語義數據模型以及支持模型的查詢語言g - sql ，同時對地下管線的各種測試方法進行分析研究，建立了地下管線測量平差計算模型，並以此對所勘測的地下管線進行核算，計算結果表明，計算模型不僅大大提高了核算的速度，同時在計算精度上也符合核算的要求，是符合實際要求的關于測量平差計算的模型。 -
This paper presents an approach to perceptually extract multi - oriented text lines from online handwriting. the approach adopts a bottom - up strategy. by the approach, strokes are first merged into blocks analogous to words, then a link model is constructed upon these blocks. finally, the optimal text line layout is found out by a branch - bound search on the link model. the experimental results show that the approach is effective and also available to extract curved text lines
提出一種多方向手寫筆跡文本行的提取方法.該方法以視覺感知理論為基礎，採取自底向上的策略，先將筆畫組合成類比字元的筆畫塊，然後基於這些筆畫塊建立鏈接模型，最後採用分支限界搜索演算法從鏈接模型中找出最優行排列.實驗結果表明，該方法能有效地提取多方向筆跡行結構，並適用於彎曲文本行的提取 -
In field of deductive database, magic transformation is an evaluation strategy that combines top - down with bottom - up. it restricts the computation of logic program to tuples that are related to the query
在演繹數據庫領域中，魔集轉換是一種自頂向下和自底向上相結合的計算策略，它使邏輯程序的計算始終限制在與查詢相關的數據中。 -
The author put forward that synchronized refinement strategy should be treat as the program understanding strategy of software reverse engineering. the synchronized refinement strategy is base on the detection of design decisions in code, and it can resolve the difficulties of program understanding better than bottom - up and top - down strategy. moreover, the design of reengineering generated by synchronized refinement strategy is more suitable for software reverse engineering
提出將同步細化策略作為軟體逆向工程的理解策略，同步細化策略基於對設計決策的探測，它比自頂向下策略和自底向上策略能夠更好地克服程序理解中的困難，同時它所產生的再工程的設計也更能適應軟體逆向工程的需要。 -
It will then construct all feasible plans simultaneously using a bottom up, breath - first search strategy
然後，它會用由下至上、寬度優先（ bottom up ， breadth - first ）的搜索策略，同時構造所有可行的計劃。 -
This paper analysis three kinds of deformations and propose resolving method respectively. a bottom - up updating method is propose especially which can compute the bounding volume of parent node through bounding volumes of the two children by k comparison. furthermore, a traverse tracing strategy that can speed up collision detection is proposed in this paper based on developing and utilizing temporal - spatial coherence in virtual environment
本文在對幾種變形情況進行分析的基礎上，分別提出了相應的解決方法，並著重提出了一種自底向上的包圍盒樹快速更新演算法，通過k次比較運算由子結點的包圍盒得到父結點的包圍盒，以解決拉壓變形和拓撲變化后包圍盒樹的更新問題。
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