Hi everyone,
I'm working on ahmia.fi, the hidden service search engine and you're reading
status update #6.
During the last two weeks, I finished porting the django app to the new
structure. I'm also working on last minute things before shipping the new site
online.
I will continue updating documentation and add some unit tests to the project.
The code is not merged yet but you're welcome to check it on my forks. [1] [2]
Since this status report is short, here is a list of goals I had in my initial
project proposition and what work has been done on each.
Review code and infrastructure:
- Split the project in several repositories
- Improve documentation
- Automate testing (Travis.CI)
- Track code quality (Landscape.IO)
- Track requirements (Requires.IO)
- Refactor each subproject
Improve search results:
- Better use of elasticsearch (use of stemmers, shingles, term-centric search)
- Search results are now pages instead of domains.
Improve UI/UX:
Not much work has been done for this goal. The website has been in the process
of porting old pages to a new design. All pages are now using the new design.
Gather more statistics:
- Pagerank is now used to compute an authority score for each page
- I suggested that we could use a self hosted statistics framework like piwik
[3] but no decision has been made.
Use stats to better rank search results:
- Results are ranked by authority score.
Make sense of the indexed info to understand a search meaning:
- Shingles enable us to differenciate these two queries: "i'm not happy i'm
working" and "i'm happy i'm not working".
- Synonyms could be used by the search algorithm if we provided a synonym
dictionnary. No work has been done at making this work.
Make a google trend-like interface to visualize searches over time:
No work has been done to reach this optional goal. Even some stats
fonctionnalities were dropped in the new site because they were "domain-
centric" when a search engine needs to be "page-centric". We could probably
index searches in elasticsearch and use Date Histogram Aggregation [4] to
display trends.
Make stats available with the API:
No work has been done to reach this optional goal. Some API endpoints were
also dropped because they were domain-centric. It would be great to have an
API with a coherent url scheme. I think Django Rest Framework can help design
that API while keeping the code simple.
That's it for this week,
Have a nice weekend.
Ismael R.
[1] https://github.com/iriahi/ahmia-site
[2] https://github.com/iriahi/ahmia-crawler
[3] https://piwik.org/
[4] https://www.elastic.co/guide/en/elasticsearch/reference/ current/search-aggregations- bucket-datehistogram- aggregation.html
[5] http://www.django-rest-framework.org/
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