| Project 1 is assigned today | ||
| Assignment 2 assigned today | ||
| Monday is a holiday, so next week’s ‘first lab’ (M/Tu) is canceled | ||
| Get out a sheet of paper and pencil / pen; put everything else away. |
| Answer all of the following questions. | |||
| 1. What is the name of Google’s system that decides how important a page is? | |||
| 2. Which has more hits: | |||
| sailboards AND oregon | |||
| sailboards AND oregon AND rental | |||
| 3. Give a query to find pages about Agatha Christie’s mystery Three Blind Mice | |||
| A link in file page.html refers to a referenced file ref.html by relative link: <a href="ref.html">link</a> |
| Tables keep information in a specific relationships to other content |
| Locating the right information on the WWW requires effort |
| The WWW is not the first place to look | |||
| Go directly to a site -- www.irs.gov | |||
| Go to right sight -- dictionary.cambridge.org | |||
| Go to the library -- www.lib.washington.edu | |||
| Go for the kind of information you want -- www.npr.org | |||
| Ask, “What site provides this information?” | |||
| Information is organized in hierarchies | ||
| No one controls what’s published on the WWW ... it is totally decentralized | |||
| To find out, search engines crawl Web | |||
| Two parts | |||
| Crawler visits Web pages building an index of the content | |||
| Query processor checks user requests against the index, reports on known pages | |||
| Searching strategies … | ||
| Limit by top level domains or format | ||
| Find terms maximally specific to topic | ||
| Look elsewhere for key words, e.g. bio | ||
| Use exact phrase only when universal | ||
| If too many hits, requery | ||
| “Search within results” using “-” | ||
| Once found, ask if site is best source | ||
| The question of color arose in class: Why is yellow “full red, full green, no blue” rather than a “primary” color? |
| Much Web information is wrong | |||
| Using the Web effectively means recognizing quality information | |||
| Information from reliable organizations is usually preferred -- check out ownership | |||
| Look for accuracy, currency, … | |||
| Follow links to verify that the content supports the original page | |||
| Create a bogus (fictitious) Web page | |||
| To appreciate how easy it is fake quality info you will build a bogus Web page | |||
| Modify photograph, changing its meaning | |||
| Write misleading text | |||
| Add “authenticity” links, fake credentials ... | |||
| Your page should look as legitimate as possible, but contain false information | |||
| You will … | |||
| Write your Web page in HTML | |||
| Find a photo (or use one of your own) | |||
| Modify the photo using Photoshop | |||
| Find links to serve as “authenticity” | |||
| Milestones | |||
| Turn In January 24th: Web page | |||
| Turn In February 3rd: Web page + photo | |||
| Follow these steps: | ||
| Create your page locally | ||
| When finished, publish it on the server | ||
| Do not touch after the deadline (2:00AM) | ||
| Print off a copy and turn it in in class | ||
| Leave your page unchanged until grading is complete | ||