垂直搜索(Vertical Search):也稱為專業搜索,高速、海量和精確抓取是定題網絡爬蟲DataScraper的強項,每天24小時每周7天無人值守自主調度的周期性批量采集,加上斷點續傳和軟件看門狗(Watch Dog),確保您高枕無憂 移動互聯網:手機搜索、手機混搭(mashup)、移動社交網絡、移動電子商務都離不開結構化的數據內容,DataScraper實時高效地采集內容,輸出富含語義元數據的XML格式的抓取結果文件,確保自動化的數據集成和加工,跨越小尺寸屏幕展現和高精準信息檢索的障礙。手機互聯網不是Web的子集而是全部,由MetaSeeker架設橋梁 企業競爭情報采集/數據挖掘:俗稱商業智能(Business Intelligence),噪音信息濾除、結構化轉換,確保數據的準確性和時效性,獨有的廣域分布式架構,賦予DataScraper無與倫比的情報采集滲透能力,AJAX/Javascript動態頁面、服務器動態網頁、靜態頁面、各種鑒權認證機制,一視同仁。在微博網站數據采集和輿情監測領域遠遠領先其它產品。
標簽: 爬蟲工具
上傳時間: 2015-03-21
上傳用戶:bcr321
數據庫建立 數據庫存儲
標簽: 數據庫
上傳時間: 2015-04-09
上傳用戶:nfmhh
獲取計算機IP地址等網絡參數 UDP聊天程序 TCP聊天程序 瀏覽器的實現
標簽: 獲取計算機的名稱和IP地址 基本C/S模式的通信實驗
上傳時間: 2015-04-12
上傳用戶:scnbyh
Boost C++ Libraries Free peer-reviewed portable C++ source libraries Boost C++ Libraries 基本上是一個免費的 C++ 的跨平臺函式庫集合,基本上應該可以把它視為 C++ STL 的功能再延伸;他最大的特色在於他是一個經過「同行評審」(peer review,可參考維基百科)、開放原始碼的函式庫,而且有許多 Boost 的函式庫是由 C++ 標準委員會的人開發的,同時部分函式庫的功能也已經成為 C++ TR1 (Technical Report 1,參考維基百科)、TR2、或是 C++ 0x 的標準了。 它的官方網站是:http://www.boost.org/,包含了 104 個不同的 library;由於他提供的函式庫非常地多,的內容也非常地多元,根據官方的分類,大致上可以分為下面這二十類: 字串和文字處理(String and text processing) 容器(Containers) Iterators 演算法(Algorithms) Function objects and higher-order programming 泛型(Generic Programming) Template Metaprogramming Preprocessor Metaprogramming Concurrent Programming 數學與數字(Math and numerics) 正確性與測試(Correctness and testing) 資料結構(Data structures) 影像處理(Image processing) 輸入、輸出(Input/Output) Inter-language support 記憶體(Memory) 語法分析(Parsing) 程式介面(Programming Interfaces) 其他雜項 Broken compiler workarounds 其中每一個分類,又都包含了一個或多個函式庫,可以說是功能相當豐富。
上傳時間: 2015-05-15
上傳用戶:fangfeng
演算法評估 用空間和時間評估演算法效能 時間複雜度(Time Complexity) 空間複雜度(Space Complexity) 效能評估 效能分析(Performance Analysis):事前評估 效能評估(Performance Measurement):效能量測 評估時均假設處理的資料量為n到無窮大
標簽: 演算
上傳時間: 2015-06-13
上傳用戶:18007270712
My JSP 'TeacherMain.jsp' starting page var $=function(id) { return document.getElementById(id); } function show_menu(num){ for(i=0;i
標簽: C++
上傳時間: 2015-07-03
上傳用戶:xiyuzhu
SharpPcap c#抓包實現時時獲取網卡信息 SharpPcap tutorial: a step by step guide to using SharpPcap The text of this tutorial is taken directly from WinPcap's official tutorial but is modified to show the C# use of the SharpPcap library. All examples can be downloaded together with SharpPcap source code from SharpPcap 's homepage. The WinPcap library must be installed before attempting to run any of these examples, so please download and install the latest version from WinPcap's download page. SharpPcap was written and tested using .NET v1.1 and Windows 2000/XP. I have no idea about other .NET and Windows versions. If you do try it, please report your results. The following topics are covered in this tutorial: Obtaining the device list Obtaining advanced information about installed devices Opening an adapter and capturing packets Capturing packets without the event handler Filtering the traffic Interpreting the packets Handling offline dump files Sending Packets Gathering Statistics on the network traffic 1. Obtaining the device list
上傳時間: 2015-07-06
上傳用戶:muzongda
驅動程序溝通著硬件和應用軟件,而驅動工程師則溝通著硬件工程師和應用 軟件工程師。隨著通信、電子行業的迅速發展,全世界每天都會有大量的新芯片 被生產,大量的新電路板被設計,因此,也會有大量設備驅動需要開發。這些設 備驅動,或運行在簡單的單任務環境中,或運行在 VxWor ks、Li nux、Wi ndows 等多任務操作系統環境中,發揮著不可替代的作用。
上傳時間: 2015-10-31
上傳用戶:fyzg
課程與教學的基本原理,泰勒,經驗,活動,我們如何思維。。。。 資料搜索 代碼搜索 熱門搜索:fpga51單片機protel99se機器人linux 單片機 dsp armProteusmat
標簽: 泰勒
上傳時間: 2015-12-09
上傳用戶:Izaya
The TAS3204 is a highly-integrated audio system-on-chip (SOC) consisting of a fully-programmable, 48-bit digital audio processor, a 3:1 stereo analog input MUX, four ADCs, four DACs, and other analog functionality. The TAS3204 is programmable with the graphical PurePath Studio? suite of DSP code development software. PurePath Studio is a highly intuitive, drag-and-drop environment that minimizes software development effort while allowing the end user to utilize the power and flexibility of the TAS3204’s digital audio processing core. TAS3204 processing capability includes speaker equalization and crossover, volume/bass/treble control, signal mixing/MUXing/splitting, delay compensation, dynamic range compression, and many other basic audio functions. Audio functions such as matrix decoding, stereo widening, surround sound virtualization and psychoacoustic bass boost are also available with either third-party or TI royalty-free algorithms. The TAS3204 contains a custom-designed, fully-programmable 135-MHz, 48-bit digital audio processor. A 76-bit accumulator ensures that the high precision necessary for quality digital audio is maintained during arithmetic operations. Four differential 102 dB DNR ADCs and four differential 105 dB DNR DACs ensure that high quality audio is maintained through the whole signal chain as well as increasing robustness against noise sources such as TDMA interference. The TAS3204 is composed of eight functional blocks: Clocking System Digital Audio Interface Analog Audio Interface Power supply Clocks, digital PLL I2C control interface 8051 MCUcontroller Audio DSP – digital audio processing 特性 Digital Audio Processor Fully Programmable With the Graphical, Drag-and-Drop PurePath Studio? Software Development Environment 135-MHz Operation 48-Bit Data Path With 76-Bit Accumulator Hardware Single-Cycle Multiplier (28 × 48)
上傳時間: 2016-05-06
上傳用戶:fagong