information retrieval problem 中文意思是什麼

information retrieval problem 解釋
情報檢聳題
  • information : n. 1. 通知，通報，報告。2. 報導，消息，情報。3. 資料，知識，學識。4. 【自動化】信息，數據。5. 【法律】起訴，告發。adj. -al
  • 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。
  • problem : n. 1. 問題，課題；疑難問題；令人困惑的情況。2. 【數、物】習題；作圖題。3. （象棋的）布局問題。adj. 1. 成問題的；難處理的。2. 關于社會問題的。
  1. And understanding and studying the spectral features and variation rules of geo - targets in the experimental area, raising that it is the basis of geo - targets information collection with imaging spectrometer data to understand spectral features and variation rules of geo - targets, realizing that in a great extent spectral - integrated - form - based classification method can remove the phenomenon of " different spectrum with same objects " resulted from reflection ratio curve translation because of the angle change among sensor, targets and observation direction, and the average and variance images can be introduced to solve the problem of two kinds of geo - target with similar spectral forms and much different values of whole reflection ratio. it is suggested that " red edge " range bands of vegetation, which has close relationship with vegetation cover and biomass, is the main characteristic bands and important basis for careful vegetation classification and quantitative retrieval, and pixel - based derivative spectral analysis is very useful for removing the effects of soil background values and quantitatively retrieving vegetation biomass and cover. the remote sense quantitative retrieval model is developed for main appraisable factors of desertification monitoring assessment with imaging spectrometer data and then the applicability of model is analyzed

    研究結果如下：首先針對荒漠化地區的地物特徵，對高光譜數據不同波段的數據質量、波段組合進行了評價，提出了適用於荒漠化監測的基本波段選擇集；初步了解和掌握了研究地區的地物光譜特性及變異規律，進一步明確了掌握地物光譜特徵和變異規律是用成像光譜儀數據提取地物信息的基礎；發現了基於光譜整體形狀的分類方法在很大程度上能夠消除由於傳感器、地物目標觀測方向之間的角度變化引起的反射率曲線整體平移的「同物異譜」現象，對于譜形相似而整體反射率的值相差較大的兩類地物，通過引入均值和方差圖像參與分類得到解決；研究還表明在植被「紅邊」范圍內的波段是進行荒漠化監測的主要特徵波段，這些波段與植被生物量和蓋度都有密切的關系，是開展精細植被分類研究和植被定量反演的重要基礎；像元的導數光譜分析可以消除土壤背景的影響，是進行植被生物量和蓋度定量反演的有力工具；建立了荒漠化監測主要評價因子的定量反演模型，並分析了模型的適用性。
  2. Motivated by this observation, this paper studies the problem of efficiently processing k nn k - ge 1 search on r - tree - like structures storing historical information about moving object trajectories. two algorithms are developed based on best - first traversal paradigm, called bfp k nn and bft k nn, which handle the k nn retrieval with respect to the static query point and the moving query trajectory, respectively. both algorithms minimize the number of node access, that is, they perform a single access only to those qualifying nodes that may contain the final result

    例如，若已知動物的軌跡，則動物學家可能提出如下兩種查詢： i在時間區間ti ， tj內找到離一個給定的靜態點譬如食物源實驗室等最近的k條動物軌跡ii在時間區間ti ， tj內找到離一條預先指定的動物軌跡最近的k條動物軌跡。
  3. First, they instigated automatic retrieval of such information as aircraft position, wind direction and speed directly from the on - board flight management system. the next problem was trickier : how to synchronize fms with another on - board system the flight deck recorder fdr or black box which recorded essential air navigation data

    他們建議從機艙內的「飛行管理系統」自動檢索飛機位置風向和風速，但隨之而來的問題卻相當棘手：怎樣使這個系統和錄取重要導航數據的「飛行記錄儀」兩個系統時間同步呢？
  4. In fourth part, we analyze a few basic theory problems existing in library network information reference : the first problem is the concept of library network information reference and its related definitions ( information reference under network circumstance, < wp = 20 > network information reference, electronics information reference, remote reference, computer reference, virtual reference, on - line reference, digital reference and computer expert consult system ) ; the second problem is the relationship between library network information reference and network information retrieval ; the third problem is the relationship between library network information reference and network information service ; the fourth problem is the difference between network information reference and traditional information reference, network information reference differs traditional information reference in reference information resource, reference service measures, reference service mode, reference service object, reference service worker, reference service concept, and so on

    第四部分分析了圖書館網路信息咨詢中存在的幾個基本理論問題：圖書館網路信息咨詢及其相關概念（網路環境下的信息咨詢、網路信息咨詢、電子信息咨詢、遠程咨詢、計算機咨詢、虛擬咨詢、聯機（在線）咨詢、數字化咨詢和計算機專家咨詢系統） ；圖書館網路信息咨詢與網路信息檢索的關系；圖書館網路信息咨詢與網路信息服務的關系；並詳細比較了網路信息咨詢與傳統信息咨詢在咨詢信息源、咨詢服務手段、咨詢服務方式、咨詢服務內容、咨詢服務對象、咨詢服務人員、咨詢服務觀念等方面的區別。
  5. Resource selection is one of the most important problems in distributed information retrieval. in this paper, resource selection is converted to document retrieval problem. some document retrieval method is adopted to solve the resource selection problem. each retrieval method is tested both on the document retrieval and resource selection problem. compared to the well known resource selection method cori, language model based retrieval method achieves a quite promising result

    集合選擇是分散式信息檢索中的重要問題，將集合選擇問題轉化為文檔檢索問題，嘗試了多種文檔檢索方法來解決集合選擇問題，並將各種方法的文檔檢索結果與集合選擇結果進行了對比，通過與經典的集合選擇演算法cori相比較，實驗發現語言模型的集合選擇方法能夠取得令人滿意的結果。
  6. Case retrieval section retrieves the most similar case or cases ; case reuse section reuses the information in that case to solve the problem ; case revision section revises the proposed solution and case retain section retaines the parts of the experience likely to be useful for future problem solving

    案例搜索模塊搜索最相似的案例；案例復用模塊復用案例中解決問題的信息和知識；案例校驗模塊校驗建議解答；案例保存模塊保存可能有用的部分為未來問題的解決使用。
  7. Content - based retrieval has become the most active research problem in the field of multimedia information searches. in this paper, we first discusssed some key technologies of query and retrieval on multimedia database. then we focus on content - based retrieval

    本文首先討論了多媒體數據庫查詢檢索的一些相關技術問題，然後重點討論了基於內容的檢索，並結合qbe （ querybyexample ）查詢方法，設計了一個基於內容的多媒體查詢語言。
  8. To tackle this difficult problem, the topic focused crawling technology came into being and occupies a position with its high degree of specialization and objectives in search engine research and development of the next generation search engines. in addition to construct professional search engine, it can be used in a client - based real - time information retrieval system, and has become a new research hot in network information retrieval field

    首先，在考慮了噪音的情況下，我們擴充錨文本的提取范圍，形成「鏈接背景信息」定義;接著編寫了自動提取演算法;然後，在爬行程序運行之前，就大量收集起始頁面地址的鏈接背景信息，並利用這些信息指導爬行程序的工作。
  9. Human face detection problem, originated in face recognition research as its first step to locate faces in the images, has recently been intensively researched as an independent problem because of its applications in many different fields including security access control, visual surveillance, content - based information retrieval, advanced human and computer interaction

    人臉檢測問題最初作為自動人臉識別系統的定位環節被提出，近年來由於其在安全訪問控制、視覺監測、基於內容的檢索和新一代人機界面等領域的應用價值，開始作為一個獨立的課題受到研究者的普遍重視。
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