Hotbot ppt
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HotBot was launched in 1996 and was originally owned by Wired Magazine. It used the Inktomi database for search results. In 1998, it was acquired by Lycos and its market share declined. It was re-launched in 2002 to allow searches across multiple databases but continues to attract only a small amount of traffic. HotBot's algorithm considers keywords in titles, meta tags, and prominence in text, and it has advanced search features but some weaknesses like not including all features of the databases it searches across.
Hotbot ppt
- 1. Ammara Muhammad Ashfaq INFORMATION RETRIEVAL TECHNIQUES
- 3. Owned by Terra/Lycos. One of the largest web search engines. Uses the Inktomi database combined with Direct Basic search screen is simple, but the advanced search allows for a full range of search features. INTRODUCTION
- 4. HotBot Launched in May 1996 Founded by Eric Brewer and assistant professor at the University of California at Berkeley and Paul Gauthier it was originally owned and operated by Wired Magazine. It was a very popular search engine in the 1990s, with it’s wild colors and great results. The search results were provided by the Inktomi database and directory results provided by LookSmart and The Open Directory HISTORY
- 5. HISTORY In 1998 the search engine was acquired by the Lycos Company and languished with limited development and falling market share. It was re-launched in 2002 as a meta-like search tool that gave users the option to search either the Google, Inktomi, Teoma or FAST databases. HotBot continues to attract a small amount of search traffic and provides results from either the Ask Jeeves (Teoma) or Google database.
- 10. Hotbot search engine algorithm is based on: • keywords contained in the title • keywords meta tags • keywords prominence and density in a text content Document length (maximum 800 words for hotbot) of any of your web pages. HOTBOT RANKING ALGORITHM
- 11. France: http://www.hotbot.lycos.fr Germany: http://www.hotbot.lycos.de Italy: http://www.hotbot.lycos.it Netherlands: http://www.hotbot.lycos.nl Spain: http://www.hotbot.lycos.es United Kingdom: http://www.hotbot.lycos.co.uk HOTBOT AROUND THE WORLD
- 12. A crawler is a program that visits Web sites and reads their pages and other information in order to create entries for a search engine index A program that automatically fetches Web pages. Spiders are used to feed pages to search engines. It's called a spider because it crawls over the Web SPIDER AND WEB CRAWLER
- 14. HotBot offers the choice of three search engine databases: HotBot (which is actually a Yahoo!/Inktomi database) Google Ask Jeeves (the Teoma database) DATABASES
- 15. • Advanced searching capabilities • Page depth limit • Advanced search help • Truncation • Quick check of three major databases STRENGTHS
- 16. Link searches must be exact Database size shrunk for awhile Advanced features have not always worked right Does not include all advanced features of each of the four databases WEAKNESSES
- 17. No cached copies of pages Only displays a few hits from each domain with no access to the rest in Inktomi Same ads at the top push regular results below the fold Should have a file type limit for PDF, MS Word, PowerPoint, and Excel files WEAKNESSES
- 19. Default Operation: Processed as an AND Full Boolean Searching: AND, OR, and NOT Proximity Searching Truncation with the * symbol Case sensitive Extensive, dynamic stop word list Word Stemming - Search for grammatical word variants including plural, singular, and tense. SEARCH FEATURES
- 20. Multiple search terms are processed as an AND operation by default. DEFAULT OPERATION
- 21. HotBot offers full Boolean searching. Use the operators AND, OR, and NOT. Operators must be in upper case. HotBot can also use for NOT. Under Word Filters, it has a drop down menu choice for All the Words, Any of the Words, Not the Words, Exact Phrase, and Not Exact Phrase. These can be used to add additional terms or combining a phrase search with a Boolean search. BOOLEAN SEARCHING
- 22. HotBot and the other Inktomi databases were sometimes case sensitive for unusual usages of case. If search terms are entered in all lower case, all upper case, or with an initial capital, all mixtures of upper and lower case are searched. If a search term contains one or more UPPER case letters in the middle of a word such as arXiv, the search is limited to only records that exactly match the specified case. CASE SENSITIVITY
- 23. ANY words with charters after the stem will be matched to your query term if the search engine supports truncation. Thus if we stem bird*, our search will match on the words birdbrain. Posing bird* to Hotbot we now get this document Bird 1,834,510 WORD STEMMING OR TRUNCATION
- 24. NO. Just phrase searching. PROXIMITY SEARCHING
- 25. The display includes the relevance score, title, URL, a brief extract, and date. HotBot displays 10 records at a time, by default. However, users can request displays of 10, 25, 50, 75, or 100 records at a time. More search engines should give such options. To always go directly to Advanced Search with the default of 100 records and the 'Boolean phrase' option, make a bookmark to these Advanced Search settings, or use their personalization feature. DISPLAY
- 26. Searching title words and links to a specific URL acrobat/applet/activex/audio/embed/ flash/form/frame/image/script/ shockwave/table/video/vrml FIELD SEARCHES
- 27. Results are sorted by relevance with groupings by site available at the end of each brief record. The display includes the relevance score, title, URL, a brief extract, and date. HotBot displays 10 records at a time, by default. SORTING
- 28. HotBot and the other Inktomi databases have an extensive, dynamic stop word list. Many common words and numbers will not be searched. The list changes as the frequency of terms in the database change. When a stop word is in a phrase, it may not be obvious that the whole phrase is not being searched. STOP WORDS
- 29. WILDCARD SEARCHES Wildcards searching generally places the symbol "*" after a word. It tells the database to look for variations of that word. For Example: Investigation* Might pull sites with words such as investigation, investigator, and investigative.
- 30. Some search engines allow you to create more complex queries by grouping AND, OR, NOT, and NEAR statements using parentheses. Investigator NEAR (Texas OR Tx) In the above example, you should pull investigators in Texas or TX whether the state name is spelled out in full or abbreviated. NESTED SEARCHING
- 31. Page Type – Default is Any (Any pages) Top Page (the root page of a URL ie. www.unca.edu) Page Depth - Limits how far down a subdirectory hierarchy Hotbot Searches These are useful for finding the primary sites for organizations or information UNIQUE FOR HOTBOT
- 32. Smaller databases Less pointing to external pages Paid advertising or sponsorship for visibility Rise of search only sites FUTURE POSSIBILITIES
- 33. HotBot is an interface to advanced web searches, and it presents a dynamically changing backend. Both the Inktomi and Direct Hit technologies serve, in different ways, to provide a relevant list of results through advanced queries, and both seek to minimize the commercial influence over search results. All of these technologies are subject to changes in technology developments, and changes in the business environment. CONCLUSION
- 34. Its weaknesses include that it still doesn't seem to produce the depth and breadth of some other engines, and that it's advanced features have not always worked correctly. As the proliferation of this engine's index and searching features continues, these weaknesses should be overcome. CONCLUSION