http://www.readwriteweb.com/archives/hakia_takes_on_google_semantic_search.php
Hakia Takes On Google With Semantic Technologies
Written by Richard MacManus / March 23, 2007 /
This week I spoke to Hakia founder and CEO Dr. Riza C. Berkan and COO Melek Pulatkonak. Hakia is one of the more promising [URL=http://www.readwriteweb.com/archives/top_100_alternative_search_engines_feb07.php]Alt Search Engines[/URL] around, with a focus on natural language processing methods to try and deliver 'meaningful' search results. Alex Iskold [URL=http://www.readwriteweb.com/archives/hakia_meaning-based_search.php]profiled Hakia[/URL] for R/WW at the beginning of December and he concluded, after a number of search experiments, that Hakia was intriguing - but it was not a level to compete with Google yet. It is important to note that Hakia is a relatively early beta product and is still in development. But given the speed of Internet time, 3.5 months is probably a good time to check back and see how Hakia is progressing...
What is Hakia?
Riza and Melek firstly told me what makes Hakia different from Google. Hakia attempts to analyze the concept of a search query, in particular by doing sentence analysis. Most other major search engines, including Google, analyze keywords. Riza and Melek told me that the future of search engines will go beyond keyword analysis - search engines will talk back to you and in effect become your search assistant.
One point worth noting here is that, currently, Hakia still has some human post-editing going on - so it isn't 100% computer powered at this point.
Hakia has two main [URL=http://www.hakia.com/technology.html]technologies
[/URL]:
1) QDEX Infrastructure (which stands for Query Detection and Extraction) - this does the heavy lifting of analyzing search queries at a sentence level.
2) SemanticRank Algorithm - this is essentially the science they use, made up of ontological semantics that relate concepts to each other.
If you're interested in the tech aspects, also check out [URL=http://labs.hakia.com/hakia-lab.html]hakia-Lab[/URL] - which features their latest technology R&D.
How is Hakia different from Ask.com?
Hakia most reminds me of Ask.com, which uses more a natural language approach than the other big search engines ('ask' a question, get an answer) - and also Ask.com uses human editing too, as with Hakia. [I [URL=http://www.readwriteweb.com/archives/ask_what_differentiates_them_from_google.php]interviewed Ask.com[/URL] back in November]. So I asked Riza and Melek what is the difference between Hakia and Ask.com?
Riza told me that Ask.com is an indexing search engine and it has no semantic analysis. Going one step below, he says to look at the basis of their results. Ask.com bolds keywords (i.e. it works at a keywords level), whereas Riza said that Hakia understands the sentence. He also said that Ask.com categories are not meaning-based - they are "canned or prefixed". Hakia, he said, understands the semantic relationships.
Hakia vs Google
I next referred Riza and Melek to [URL=http://www.readwriteweb.com/archives/interview_with_matt_cutts_next_generation_search.php]Read/WriteWeb's interview with Matt Cutts of Google[/URL], in which Matt told me that Google is essentially already using semantic technologies, because the sheer amount of data that Google has "really does help us understand the meanings of words and synonyms". Riza's view on that is that Google works with popularity algorithms and so it can "never have enough statistical material to handle the Long Tail". He says a search engine has to understand the language, in order to properly serve the Long Tail.
Moreover, Hakia's view is that the vastness of data that Google has doesn't solve the semantic problem - Riza and Melek think there needs to be that semantic connection present.
Their bigger claim though is that the big search companies are still thinking within an indexing framework (personalization etc). Hakia thinks that indexing has plateaued and that semantic technologies will take over for the next generation of search. They say that semantic technologies allow you to analyze content, which they think is 'outside the box' of what the big search companies are doing. Riza admitted that it was possible Google was investigating semantic technologies, behind closed doors. Nevertheless, he was adamant that the future is understanding info, not merely finding it - which he said is a very difficult problem to solve, but it's Hakia's mission.
Semantic web and Tim Berners-Lee
Throughout the interview, I noticed the word "semantic" was being used a lot - but their interpretation seemed to be different to that of Tim Berners-Lee, whose notion of a Semantic Web is generally what Web people think about when uttering the 'S' word. Riza confirmed that their concept of semantic technology is indeed different. He said that Tim Berners-Lee is banking on certain standards being accepted by web authors and writers - which Riza said is "such a big assumption to start this technology". He said that it forces people to be linguists, which is not a common skill.
Furthermore, Riza told me that Berners-Lee's Semantic Web is about "imposing a structure that assumes people will obey [and] follow". He said that the "entire Semantic Web concept relies on utilizing semantic tagging, or labeling, which requires people to know it." Hakia, he said, doesn't depend on such structures. Hakia is all about analyzing the normal language of people - so a web author "doesn't need to mess with that".
Competitors
Apart from Google and the other big 'indexing' search engines, Hakia is competing against other semantic search engines like [URL=http://www.powerset.com/]Powerset[/URL] and hybrids like [URL=http://www.wikia.com/]Wikia[/URL]. Perhaps also [URL=http://radar.oreilly.com/archives/2007/03/freebase_will_p_1.html]Freebase[/URL] - although Riza thinks the latter may be "old semantic web" (but he says there's not enough information about it to say for sure).
Conclusion
Hakia plans to launch its version 1.0 (i.e. get out of beta) by the end of 2007. As of now my assessment is the same as Alex's was in December - it's a very promising, but as yet largely unproven, technology.
I also suspect that Google is much more advanced in search technology than Mountain View is letting on. We know that Google's scale is a huge advantage, but their experiments with things like personalization and structured data (Google Base) show me that Google is also well aware of the need to implement next-generation search technologies. Also, as Riza noted during the interview, who knows what Google is doing behind closed doors.
Will semantic technologies and 'sentence analysis' be the next wave of search? It seems very plausible. So with a bit more development, Hakia could well become compelling to a mass market. Therefore how and when Google responds to Hakia will be something to watch carefully.
[此贴子已经被作者于2007-3-28 19:07:59编辑过]
[返回] 中文XML论坛 - 专业的XML技术讨论区 →
休息区 → 『 最新动态 & 业界新闻 』 → Hakia Takes On Google With Semantic Technologies
(订阅本版)
2007/3/27 9:53:00
新浪微博
Hakia Takes On Google With Semantic Technologies
