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Crawling the Web - Cs.princeton.edu
Crawling the Web - Cs.princeton.edu

... • To do large crawls must have multiple crawlers with multiple network connections (sockets) open and probably multiple queues ...
Algorithm - SSUET - Computer Science Department
Algorithm - SSUET - Computer Science Department

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Lesson 2: View a Web Page and Use Help
Lesson 2: View a Web Page and Use Help

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Assessment and Authorization for Cloud Computing

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Memory Management + Mass Storage Management

... A logical address (on 32-bit machine with 1K page size) is divided into:  a page number consisting of 22 bits  a page offset consisting of 10 bits  Since the page table is paged, the page number is further divided into:  a 12-bit page number  a 10-bit page offset  Thus, a logical address is as ...
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Applications of Artificial Intelligence

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My comments… Last sentence, second paragraph, page 2. Some

... Page 7, 2nd to last para. You don’t actually reference Appendix C in the document. I think you reference Appendix B but meant C. Page 8, 4th para… 2nd sentence isn’t right. Not sure what you are trying to say. Same paragraph, 2nd to last sentence. Check sentence that starts “Factors outside….” Ther ...
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Last sentence, second paragraph, page 2. Some word isn't right in

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... Page Marker: 588 A. Can you name some things that affect a biker’s speed? ___________________________________________________ Page Marker: 590 A. What is motion? The length between two places is called ______________. List three units we could use to measure distance. _______________________________ ...
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... Rutherford's atomic model (1911) --- a good step, but it was NOT quantitative • one of the lessons/methods of science: look for the unexpected Also, Rutherford's model suffered from a fatal flaw: according to classical electromagnetic theory (Maxwell's equations), atoms should emit continuous (that ...
Writing for the web - University of South Australia
Writing for the web - University of South Australia

... • be succinct, clear and concise: write no more than 50% of the length of the paper equivalent • write for scannability: don't make users read long continuous slabs of text • present content in short segments (chunks) that focus on a certain topic • use lists, headings and bullet points to split up ...
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Hints about Exam 2.

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Instructor Rubric for Presentations

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< 1 2 3

Page replacement algorithm

In a computer operating system that uses paging for virtual memory management, page replacement algorithms decide which memory pages to page out (swap out, write to disk) when a page of memory needs to be allocated. Paging happens when a page fault occurs and a free page cannot be used to satisfy the allocation, either because there are none, or because the number of free pages is lower than some threshold.When the page that was selected for replacement and paged out is referenced again it has to be paged in (read in from disk), and this involves waiting for I/O completion. This determines the quality of the page replacement algorithm: the less time waiting for page-ins, the better the algorithm. A page replacement algorithm looks at the limited information about accesses to the pages provided by hardware, and tries to guess which pages should be replaced to minimize the total number of page misses, while balancing this with the costs (primary storage and processor time) of the algorithm itself.The page replacing problem is a typical online problem from the competitive analysis perspective in the sense that the optimal deterministic algorithm is known.
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