information retrieval method 中文意思是什麼

information retrieval method 解釋
情報檢索方法
  • 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。
  • method : n 1 方法，方式；順序。2 （思想、言談上的）條理，規律，秩序。3 【生物學】分類法。4 〈M 〉【戲劇】...
  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. A shape - based image information retrieval method

    一種基於形狀的圖像信息檢索方法
  3. During the procedure of system design and implementation, the author has made some innovative efforts such as : ( d establishing the user interest orientated model, the model receiving user interests continuously and conjecturing user interests by interaction with the user, accumulating user preferences in information demand, thereby achieving self - adaptive retrieval, ? roviding a feedback method which is based on the human - machine interaction, summarizing the user operations on the interface of result presentation, and designing an algorithm for capturing user operation behaviors, by which the changes in user interests and preferences can be learned potentially, ? ffering a method for user interest mining which can extract subjects of information confirmed by user, thereby conjecturing or predicting different kinds of expressions of the same interest or extracting the new interests or unexpressed interests, ? roposing a solution of personalized internet information retrieval based on the user interests in accordance with the above - mentioned work, the solution having very strong feasibility and practicality with taking user interest model as center, employing machine learning ( active learning and passive learning ) and data mining as tools, and being assisted with network robot,

    Piirs系統分析與設計過程中所做的創新性的嘗試主要有以下幾個方面：實現了基於用戶興趣的用戶模型，該模型通過與用戶的交互（主動交互和被動交互） ，不斷地接收用戶的興趣和推測用戶的興趣，積累用戶信息需求的偏好，實現自適應的檢索；提供了一種基於人機交互的反饋方法，對用戶在結果呈現界面上的操作進行了歸納總結，設計了用戶操作捕獲演算法， 「隱性地」學習用戶興趣和偏好的變化；提供了一種用戶需求挖掘的方法，對用戶已確定的信息做進一步的主題挖掘，由此推測或預測用戶同一興趣的不同表述方式或者挖掘出用戶新的或未表達出來的興趣；在上述工作基礎上提出了一套完整的基於用戶興趣的個性化網路信息檢索的解決方案，該方案以用戶興趣模型為中心，以機器學習（主動學習和被動學習）和數據挖掘為手段，輔以網路機器人，具有很強的可行性和實用性。
  4. To gain a higher precision of retrieval, the method of pixel information decomposition is introduced in. the method is to divide ground objects correspond to a pixel in to several basic components : soil, vegetation, moisture, water, and ice, and then, using remote sensing data, calculate the contents of every components according to the model by which the component ' s spectrum compose

    為獲得較高的反演精度，採取象元組分信息分解的方法，將象元對應地物分解為土壤、植被、水分、水體、雪被等基本組分，然後根據這些組分的光譜組合模型用遙感數據計算象元中各組分含量，再根據組分含量反演半球反射率和反照率。
  5. The research of this paper is spread out mainly around 5 aspects : ( 1 ) the description of xmarc information theory system based on xml under network environment ; ( 2 ) the advanced design of field xmarc metadata ; ( 3 ) the foundation of k - s - c special knowledge relation by the identification " keyword + subject + category " ; ( 4 ) the establishment of xmarc theme knowledge automatic indexing and its algorithms ; ( 5 ) the research on knowledge processing method of concept retrieval and the theme classification based on xmarc

    本文主要的工作是圍繞五個方面展開的：建立網路環境下基於xml的xmarc信息描述理論體系，比較設計領域的xmarc元數據，構建以「關鍵詞+主題詞+范疇號」標識的知識關系k - s - c （ keyword - subject - category ） ，建立xmarc主題知識的標引方摘要法及其演算法，提出xmarc主題知識的分類與詞句概念檢索方法。
  6. A concept - based approach is expected to resolve the word sense ambiguities in information retrieval and apply the semantic importance of the concepts, instead of the term frequency, to representing the contents of a document. consequently, a formalized document framework is proposed. the document framework is used to express the meaning of a document with the concepts which are expressed by high semantic importance. the framework consists of two parts : the " domain " information and the " situation background " information of a document. a document - extracting algorithm and a two - stage smoothing method are also proposed. the quantification of the similarity between the query and the document framework depends on the smoothing method. the experiments on the trec6 collection demonstrate the feasibility and effectiveness of the proposed approach in information retrieval tasks. the average recall level precision of the model using the proposed approach is about 10 ? higher than that of traditional ones

    為了獲取詞語在文章中的語義權重，解決詞語的同義、多義模糊問題，提升信息檢索的效率，提出了一種基於概念的檢索模型，模型中設計了一種形式化的文本內容表示框架，框架由2部分構成:文章的"領域"以及"情景與背景"信息，並由概念（形式化語義）加以表示.同時，提出了提取該概念框架的方法，給出了用於框架與檢索要求間匹配的兩階段平滑演算法.實驗表明，在trec6提供的小規模語料集下，採用所提出方法的信息檢索模型與傳統模型相比，平均召回準確率提升了約10 ? ，效果顯著，充分說明了基於本文描述方法構建的、以概念作為處理中介的信息檢索系統的有效性和可行性
  7. 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
  8. It has become a tendency to develop specific internet information retrieval tools. the technique of topic - focused web information searching and filtering described in this paper. according to the personality of topic - focused information, we present a new topic - focused method including information query representation, information retrieval and information filtering

    本文研究的面向專題的web信息收集與過濾技術是這類工具的核心，圍繞專題信息的特點，設計了一套個性化的專題信息查詢表現、專題信息查詢和專題信息過濾和收集方法，以適應專業用戶信息收集的需要，提高信息收集的相關度和收集效率。
  9. Then, inspired by the idea of evaluation method we propose a new method and construct a simple music structure based music information retrieval system, the experiment results show that it is a perspective method, the system can give a list of retrieval results ordered by structure similarity that extracted from the automated music structure label system build up before, and two same music piece can be identified almost 100 %, so it is very useful in mir and intelligent play list generation

    受到結構評價方法啟發，本文又提出了基於結構分析的音樂檢索的方法，初步探討了利用音樂結構信息建立檢索系統這一新方法的前景。初步實驗結果顯示這種方法是很有前途的，它可以直接檢索音頻形式的音樂，按照結構相似程度給出最後結果並排序輸出，這在音樂檢索和智能播放列表的生成方面都有廣泛的應用。
  10. 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。
  11. While some characteristics of intelligence retrieval system are also analyzed, which it not only can comprehend the information, but also the users, it is pointed out that the retrieval method is characterized not by simple string match, but concept retrieval as its core

    並分析了智能檢索系統的一些特徵，系統要能理解信息，也要能了解用戶，指出了智能信息檢索以概念檢索為主，而不是簡單的串匹配。
  12. 3. advancing a method to calculate weight of document feature item based on bp neural net the key technologies of information retrieval system are the followings : representation of document and user query ; query matching strategy ; correlation calculation of matching result

    提出一種基於bp神經網路統計文檔特徵項權重的方法信息檢索系統的核心技術主要包括三個方面的內容：文檔與用戶查詢的表示：查詢匹配策略；匹配結果的相關度計算。
  13. In the past, people have done much research on video database, video analysis and information retrieval, but there lacks complete and standardized description of video data, and video information retrieval method based on the standardized description

    雖然過去開展了大量的視頻數據庫、視頻分析和信息檢索的研究，但是缺乏對視頻數據進行完整的、規范性的描述，以及建立在這些規范描述之上的視頻信息檢索方法。
  14. With the large number of users and explosive information on internet, the traditional web information retrieval mode is ineffective and blocks the development of internet. so it promotes people to research and develop a new and more effective information retrieval method

    隨著internet的用戶數和信息量爆炸性的發展，傳統的web信息檢索模式呈現出效率低下、制約發展的徵兆，因此也激勵人們研究和開發新的、更加高效的信息檢索方法。
  15. Firstly, the paper introduces the main theoretics and technologies of the web information retrieval. then it applies the spider to realize the information gathering. according to characteristic of uighur language, using uighur stemming based on table searching regular and arithmetic of the combined mode, uighur text segmentation is realized ; using vector space model, the paper switches uighur text information into structured data ; and appling clustering analytical method, these structured text is clustered

    本文首先分析了web信息檢索的主要理論基礎和關鍵技術，然後利用spider信息採集技術，實現了信息檢索的源信息採集;根據維吾爾語詞的特點，利用詞干表查找的維文詞干提取演算法和結合模式的維文詞語組合演算法，對維文網頁文本進行詞特徵表示;採用向量空間模型實現文本信息的結構化表達;使用聚類分析法，對結構化文本信息進行聚類，得到文本分類結果。
  16. This paper embarks on from rationalism natural language processing and proposes the method of expressing concept using the dynamic attribute set according to the theory of conceptual dependency and complex attribute set. then the paper briefly analyzes the process of constructing the dynamic attribute set via unification, proposes the matching theory that conceptual attribute set can be applied to information retrieval, and basically discusses the realization of information retrieval based on this theory. finally the paper concludes that the necessary and sufficient condition that a document matches a query is that the document must contain all the conceptual bases that appear in the query and be consistent with the relationship among conceptual bases in query

    本論文從理性主義自然語言處理出發，根據概念依存理論和復雜特徵集提出了概念的動態特徵集表示方法，簡單的分析了利用合一運算構建動態特徵徵集的過程，提出了一種將概念特徵集應用於信息檢索的匹配理論，初步探討了基於該理論的信息檢索的實現，通過匹配過程的深入分析得出文檔與查詢語句相匹配的充要條件是文檔必須蘊含查詢語句所包含所有概念基並且必須與查詢語句中的概念基之間關聯關系相匹配的結論。
  17. A method that combines category - based and keyword - based concepts for a better information retrieval system is introduced

    摘要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。
  18. We identify and filter danger information based on a similarity measure method and gain a good result. we propose a method of ranking bloggers based on link analysis, which can exemplify the characteristics of blogs, and reduce the influence of link spamming. this method can also bring convenience to users for reading blogs, and it may supply a new methodology for information retrieval in the blog space

    為了給用戶閱讀和查找信息提供方便，本文還提出了一種基於鏈接分析的對blog信息源進行量化評估的方法，在此基礎之上發現重要blog信息源，既體現了blog信息的特點，又在一定程度上減小了作弊鏈接對鏈接分析結果的影響，能為用戶閱讀信息提供方便，並可望為blog信息檢索提供一種新的思路。
  19. A method of automatic summarization in web information retrieval was proposed based on the structrue of the web document

    摘要提出了一種以網頁結構為指導的自動摘要方法。
  20. Image retrieval method based on color - space information

    基於顏色及空間信息的圖象檢索方法
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