retrieval performance 中文意思是什麼

retrieval performance 解釋
檢索性能
  • retrieval : n. （可）取回，（可）恢復，（可）挽回；（可）修補，（可）修正，（可）更正；（可）彌補，（可）補償。 beyond retrieval 不能補救的，不能挽回的。
  • performance : n. 1. 執行，實行，履行；完成；實現；償還。2. 行為，動作，行動；工作。3. 性能；特性。4. 功績；成績。5. 演奏；彈奏；演出；（馴獸等的）表演；把戲。6. 【物理學】演績。
  1. 3. as there are up to 106 managed objects on element level of tmn ( telecommunications management network ) in telecommunications network, and the scheme to collect management information affects the performance of network management, a new algorithm - saa ( self - adaptive algorithm ) used for retrieving multi objects information has been put forward in this thesis. saa can adjust the retrieving objects and interval of retrieval self - adaptively by using the schemes of self - adaptivity, fault tolerance, recognition status of object dynamically etc., and thus can use fewer network resources without alteration of snmp ( simple network management protocol ), iiop ( internet inter - operability protocol ) or cmip ( common management information protocol )

    針對傳統的定時提取網路管理信息方法的不足，提出了一種提取多管理對象信息的新演算法? ?自適應演算法saa （ self - adaptivealgorithm ） ，該演算法能在不改變管理協議，如iiop （ internetinter - operabilityprotocol ） 、 snmp或cmip （ commonmanagementinformationprotocol ，公共管理信息協議）的情況下，採用自適應策略、容錯策略、動態識別被管對象狀態策略、被管對象存儲空間的動態刷新策略，根據本次訪問被管國防科學技術大學研究生院學位論文對象所得出的網路通信量，自適應地調整下次應該訪問的被管對象和讀取被管劉?象數據的時間間隔，從而可以較少地消耗所用的網路帶寬和cpu資源。
  2. The detection of interest points is the basis of kinds of computer vision applications, such as : camera calibration, 3d reconstruction, image matching, video retrieval, motion estimation, etc. in this paper, three impersonal criteria : delocalization, false - detection rate, and repeatability are presented to evaluate the performance of an interest points detection algorithm

    興趣點檢測是許多計算機視覺應用的基礎，如：攝像機定標、三維重建、圖像匹配、視頻檢索、運動估計等。本文首先給出了一個評價興趣點檢測演算法性能的客觀標準，這個標準包括以下三個準則：點位置偏差、誤檢率及重復度。
  3. This dissertation deals with the content - based image retrieval ( cbir ) theory and technique ; some new features and tools for more concisely and discriminatingly charactering the content of an image are proposed, such as region - based color histogram, grey - primitive co - occurrence matrix, ratio of centripetal moment, ratio of eccentric moment and ratio of inertial moment. a new modified genetic algorithm is also described in this dissertation, which can upgrade the performance of standard genetic algorithm ( sga ) while used in image segmentation

    本文以圖像數據庫檢索為主線，討論了基於視覺內容的圖像檢索方法，提出包括基於區域顏色直方圖、灰度?基元共生矩陣及向心矩比、偏心矩比、慣性矩比的特徵描述方式；對遺傳演算法存在的早熟、收斂到最優解慢等問題提出了解決方法，並將改進遺傳演算法應用到圖像分割中，編制了相應程序。
  4. The experimental results show that the sub - classes presented by this paper can enhance the recognition system ' s performance and aid information retrieval and information extraction

    實驗結果表明：面向機器處理的細分類能有效地提高識別系統的性能並最終有助於信息檢索和抽取。
  5. This system is set up on the existing search engine foundations through web services " technology, has solved variety and non - structural web data with xml technology, has formed web multi - level data base, and constructed the system structure in high performance of data warehouse, utilized midas technology to form the high - performance index storehouse structure, has remedied the deficiency of search engines at coverage, accuracy etc, and improved efficiency of information retrieval

    該系統通過webservices技術，建立在現有搜索引擎基礎之上，以xml技術解決了多樣性和非結構性的web數據轉換，形成了web多層次數據庫，利用了web挖掘面向結構化或半結構化數據的智能化數據抽取和知識發現過程，並且構造了數據倉庫的高性能查詢體系結構? hpqs ，利用midas技術形成了高性能索引庫結構，彌補了當前搜索引擎在覆蓋范圍、準確率、復雜查詢語言的使用和結果表現方式等方面的不足，改善了信息檢索的效率。
  6. A method that combines category - based and keyword - based concepts for a better information retrieval system is introduced. to improve document clustering, a document similarity measure based on cosine vector and keywords frequency in documents is proposed, but also with an input ontology. the ontology is domain specific and includes a list of keywords organized by degree of importance to the categories of the ontology, and by means of semantic knowledge, the ontology can improve the effects of document similarity measure and feedback of information retrieval systems. two approaches to evaluating the performance of this similarity measure and the comparison with standard cosine vector similarity measure are also described

    介紹了一種綜合各層級分類類目和對應關鍵詞來構造概念體系並用於改進信息檢索系統效果的方法.為了改進文本聚類的效果，提出了將領域知識本體和文本關鍵詞詞頻相結合的基於餘弦向量的文本相似性測度方法.該本體面向特定領域，將關鍵詞以不同權值對應于各分類類目，通過其語義知識來改進文本相似性測度以及信息檢索系統的效果.進一步給出了對基於本體的相似性測度方法進行效果評價的2種策略以及該方法與經典餘弦向量測度方法的比較結果
  7. Experimental results indicate that the expanded model has better retrieval performance than the basic belief network model ' s

    實驗證明，擴展模型的檢索性能優于基本模型。
  8. Salton, g. & buckley, c. " improving retrieval performance by relevance feedback, " journal of the american society for information science, 41 ( 4 ), 1990, pp. 288 - 297

    李宜容， "人文及社會學科讀者使用線上公用目錄檢索詞匯之研究" ，淡江大學教育資料科學研究所碩士論文，民85年。
  9. The experimental results show that the indexes have more powerful ability of characterizing the image contents and improve performance both in retrieval efficiency and effectiveness

    實驗結果證明，給出的索引方法具有很強的圖像表徵能力，利用該索引進行圖像檢索，提高了檢索效率。
  10. Therefore, the task of the query optimizer is to select an index, or combination of indexes, only when it will improve performance, and to avoid indexed retrieval when it will hinder performance

    因此，查詢優化器的任務是只在索引或索引組合能提高性能時才選擇它，而在索引檢索有礙性能時則避免使用它。
  11. By taking advantage of the information retrieval technologies and the pulsar, a high performance speech document retrieval system was developed, its three major modules are speech recognition, document indexing and playback

    利用自主開發的pulsar語音識別系統及信息檢索技術，設計實現了一套高效的語音檢索系統。
  12. Asian language information processing, 2002, 1 : 225 - 268. 44 peng f, huang x, schuurmans d et al. investigating the relationship between word segmentation performance and retrieval performance in chinese ir

    中文動詞次范疇化的研究主要研究了漢語動詞次范疇化現象的語言學理論和漢語動詞scf信息的自動獲取技術，並獲得了目前國內外同類研究的最優性能。
  13. 4. to decrease the usage of network resources by network management systems even more, combined with the fact that the performance of network management is affected by the scheme to collect management information, a new algorithm - gpa ( group - prefetching algorithm ) has been put forward used for retrieving management information from the element level in heterogeneous wan ( wide area network ). gpa can adjust many little retrieving objects into one prefetching group to access by using the schemes of group prefetching, objects of group changed self - adaptively, fault tolerance etc., and thus can decrease the frequency of retrieval, use fewer network resources and decrease the network overhead without alteration of iiop, snmp or cmip too

    4 .為進一步減少網路管理系統對網路帶寬的佔用，結合被管對象信息的收集策略直接影響網管系統性能的特點，針對異構大型網路環境下多管理對象的信息收集問題，提出了一種提取多管理對象信息的新演算法?組預取演算法gpa （ group一prefetehingalgorithim ） ，該演算法同樣能在不改變管理協議，如iiop 、 snmp或cmip的情況下，採用組預取策略、組對象自適應擴充策略、組對象自適應收縮策略、容錯策略等，將多個分散的、處于相同或不同被管設備上的、在未來一段時間內的管理對象的訪問組合在一個預取組中進行訪問，減少對管理對象的訪問頻度，從而可以較少佔用網路資源，減小整個網路開銷。
  14. The fast wavelet entropy technique for image indexing to reduce the complexity of the wavelet histogram method is suggested which can improve the retrieval performance

    提出了快速小波熵的圖像檢索技術以減少小波直方圖技術的計算復雜性並提高了檢索速度。
  15. Experiments show that the learned metrics can be used to significantly improve image retrieval performance

    試驗結果表明，該方法能在學習樣本極少的情況下提高檢索的性能。
  16. Machine learning and statistical modeling approach is a simple yet effective technique for image retrieval, but the retrieval performance is often dependent on a large number of training data

    機器學習和統計方法是一種有效的提高檢索性能的方法，但通常需要大量的訓練樣本才能達到滿意的檢索精度。
  17. Compared with traditional text - based or content - based image retrieval system, this system not only improves the retrieval performance, but also makes the interaction between the human and computer more convenient

    與基於文本或基於內容的圖像檢索系統相比，該系統既提高了檢索性能，又使得人機交互更加便利。
  18. Exclusion standard, search strategy and design of the search algorithm are given in detail. a latest update strategy, which is able to examine, download and renew the information in the shortest time, is proposed. the invalid hyperlinks are decreased sharply and the retrieval performance of search engines is improved

    Robot程序是信息搜集與信息更新的基礎，本文詳細地敘述了其搜集信息的排除標準、搜索策略及搜索演算法設計，並給出了一個最近更新策略，保證能在數據信息變更的最短時間內進行檢測、下載、更新，大大地避免死鏈接、無效鏈接，提高了搜索引擎的查詢性能。
  19. Fast and high - quality document clustering algorithms play an important role towards this goal as they have been shown to provide both an navigation / browsing mechanism by organizing large amounts of information into a small number of meaningful clusters as well as to greatly improve the retrieval performance either via cluster - driven dimensionality reduction or term - weighting

    快速和高質量的文本聚類技術在實現這個目標過程中扮演了重要的角色。通過將大量信息組織成少數有意義的簇，這種技術能夠提供導航瀏覽機制，或者，通過聚類驅動的降維或權值調整來極大地改善檢索性能。
  20. Content - based image retrieval ( cbir ) systems attempt to solve this problem by retrieval system based on text mode, become one of most active researches in computer vision, image and video processing, data mining and so on. currently the researchers have already designed many content based image retrieval systems. while these researches establish the basis of cbir, the retrieval performance is still far from users ’ expectations

    本文詳細介紹了圖像檢索中常用的特徵，包括顏色、形狀、紋理等及相應的提取方法，對現有的圖像分割演算法進行了研究分析，使用了一種基於圖像顏色和空間信息的彩色圖像分割演算法作為圖像的自動分割演算法，演算法的分割結果與人的主觀視覺感知具有良好的一致性。
分享友人
分享到 Line

分享到臉書