A-B 160-AA02NSF1P1
人工神經(jīng)網(wǎng)絡反映了人腦功能的若干基本特性,但并非生物系統(tǒng)的產(chǎn)品真描述,只是某種模仿、簡化和抽象。
據(jù)朱國卿介紹,與數(shù)字計算機比較,人工神經(jīng)網(wǎng)絡在構(gòu)成原理和功能特點等方面更加接近人腦,它不是按給定的程序步步地執(zhí)行運算,而是能夠自身適應環(huán)境、總結(jié)規(guī)律、完成某種運算、識別或控制過程。人工神經(jīng)網(wǎng)絡要以定的學習則進行學習,然后才能工作。般說來,網(wǎng)絡中所含的神經(jīng)元個數(shù)越多,它能記憶、識別的模式也就越多。
人工神經(jīng)網(wǎng)絡也具有初步的自適應與自組織能力。通常,它的學習訓練方式分為兩種,種是有監(jiān)督學習或稱有導師學習,這時利用給定的樣本標進行分類或模仿;另種是無監(jiān)督學習或稱無導師學習,這時,只規(guī)定學習方式或某些規(guī)則,具體的學習內(nèi)容隨系統(tǒng)所處環(huán)境(即輸入信號情況)而異,系統(tǒng)可以自動發(fā)現(xiàn)環(huán)境特征和規(guī)律性,具有更近似人腦的功能。作為戰(zhàn)略新興產(chǎn)業(yè)的重要內(nèi)容,高端裝備制造業(yè)十二五的發(fā)展思路是從五大方向重點突破,分別是航空裝備、衛(wèi)星及應用、軌道交通裝備、海洋工程裝備和智能制造裝備。該《規(guī)劃》提出的目標是,到205年高端裝備的銷售產(chǎn)值占裝備制造業(yè)的比例將達20%以上,預計年銷售產(chǎn)值將會達到6萬億元。
數(shù)據(jù)顯示,目前智能裝備的產(chǎn)業(yè)規(guī)模約為3000億元,市場多被國外廠商壟斷,國內(nèi)廠商市占率低,智能儀器儀表與控制系統(tǒng)為0%,工業(yè)機器人與專用裝備為20%,中檔數(shù)控機床為20%,高檔數(shù)控機床為%。而《規(guī)劃》制定的目標是,到205年,銷售收入達到萬億元,國民經(jīng)濟重點產(chǎn)業(yè)所需高端智能裝備及基礎(chǔ)制造裝備國內(nèi)市場占有率達到50%;2020年銷售收入達到2萬億元,國內(nèi)市場占有率達到70%。
事實上,不僅智能裝備制造業(yè),航空裝備、衛(wèi)星及應用、軌道交通裝備、海洋工程裝備等行業(yè)也存在類似的問題:過度依賴投資增長,自主創(chuàng)新能力薄弱,缺乏核心技術(shù)和自主品牌;基礎(chǔ)制造水平滯后,部分領(lǐng)域存在重復建設和產(chǎn)能過剩,能源資源利用率低,產(chǎn)品能耗高等。
廈門興銳達自動化設備有限公司
聯(lián)系人:劉錦玲 銷售經(jīng)理
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