A look at European Conference on Information Retrieval (ECIR) 2012

European Conference on Information Retrieval

The 34th European Conference on Information Retrieval was held  1-5 April 2011, in the lovely but crowded city of Barcelona, Spain. The core conference attracted over 100 attendees, with a total of 35 accepted full papers, 28 posters, and 7 demos being presented. As opposed to the previous year, which had 2 parallel sessions, this year’s conference included a single running session. The accepted papers covered a diverse range of topics, and were divided into query representation, blog and online-community search, semi-structured retrieval, applications, evaluation, retrieval models, classification, categorisation and clustering, image and video retrieval, and systems efficiency.

The best paper award went to Guido Zuccon, Leif Azzopardi, Dell Zhang and Jun Wang for their work entitled “Top-k Retrieval using Facility Location Analysis” and presented by Leif Azzopardi during the retrieval models session. The authors propose using facility location analysis taken from the discipline of operations research to address the top-k retrieval problem of finding “the optimal set of k documents from a number of relevant documents given the user’s query”.

Meanwhile, “Predicting IMDB Movie Ratings using Social Media” by Andrei Oghina, Mathias Breuss, Manos Tsagkias and Maarten de Rijke won the best poster award. With a different goal from the best paper, the authors of the poster experiment with a prediction model for rating movies using a set of qualitative and quantitative features extracted from the stream of two social media channels, YouTube and Twitter. Their findings show that the highest predictive performance is obtained by combining features from both channels, and propose as future work to include other social media channels.

Workshop Days

The conference was preceded by a full day of workshops and tutorials running in parallel. I attended two workshops: Information Retrieval Over Query Sessions (SIR) during the morning and Task-Based and Aggregated Search (TBAS) in the afternoon. The second workshop ended with an interactive discussion. A third, full-day workshop was Searching 4 Fun!.

Industry Day

The last day was the Industry Day. Only 2 papers here, plus 5 oral contributions, and around 50 attendees. A strong focus of the talks given at the industry day was on opinion-mining: four of the six participating companies/institutions presented work on sentiment analysis and opinion mining from social media streams. Jussi Karlgren, from Gavagai, argued that sentiment analysis from social media can be used by companies for example in finding reviews or comments made about their product or service, analyse their market position, and predict price movements. Rianne Kaptein, from Oxyme, backed this up by adding that businesses are interested by what the consumers say about their brand, products or campaigns on social media streams. Furthermore, Hugo Zaragoza from Websays identified two basic needs inside a company: a need for help in reading so that someone can act, and a need for help in explaining so that it can convince. Very interesting topic indeed, and research in this direction will advance as companies become more aware of the business gains from opinion mining of social media.

Overall, ECIR 2012 was a very inspiring conference. It also seemed a very friendly conference, offering many opportunities to network with the fellow attendees. Despite that, several participants said that the number of attendees at this year’s conference has decreased in comparison with previous years. The workshops and the core conference gave me the impression that it has a strong focus on young researchers, as many of the accepted contributions had a student as a first author and presenter at the conference. The fact that there was only one session running at a time was a good decision in my opinion, as the attendees were not forced to miss presentations. Nevertheless, the workshops and tutorials were running in parallel, and although the proceedings of the workshops will be made freely available, I still feel that I missed something that day. The industry day was very exciting, offering the opportunity to share ideas between academia and industry. However, there were not so many presentations, and the topics were not as diverse. I propose that next year Findwise will be among the speakers at the Industry track!

ECIR 2013 will be held in Moscow, Russia, between 24-28 March. See you there!

Google Instant – Can a Search Engine Predict What We Want?

On September 8th Google released a new feature for their search engine: Google instant.
If you haven’t seen it yet, there is an introduction on Youtube that is worth spending 1:41 minutes on.

Simply put, Google instant is a new way of displaying results and helping users find information faster. As you type, results will be presented in the background. In most cases it is enough to write two or three characters and the results you expect are already right in front of you.

Google instant

The Swedish site Prisjakt has been using this for years, helping the users to get a better precision in their searches.

At Google you have previously been guided by “query suggestion” i.e. you got suggestions of what others have searched for before – a function also used by other search engines such as Bing (called Type Ahead). Google instant is taking it one step further.

When looking at what the blog community has to say about the new feature it seems to split the users in two groups; you either hate it or love it.

So, what are the consequences? From an end-user perspective we will most likely stop typing if something interesting appears that draws our attention. The result?
The search results shown at the very top will generate more traffic , it will be more personalized over time and we will most probably be better at phrasing our queries better.

From an advertising perspective, this will most likely affect the way people work with search engine optimization. Some experts, like Steve Rubel, claims Google instant will make SEO irrelevant, wheas others, like Matt Cutts think it will change people behavior in a positive way over time  and explains why.

What Google is doing is something that they constantly do: change the way we consume information. So what is the next step?

CNN summarizes what the Eric Schmidt, the CEO of Google says:

“The next step of search is doing this automatically. When I walk down the street, I want my smartphone to be doing searches constantly: ‘Did you know … ?’ ‘Did you know … ?’ ‘Did you know … ?’ ‘Did you know … ?’ ”

Schmidt said at the IFA consumer electronics event in Berlin, Germany, this week.

“This notion of autonomous search — to tell me things I didn’t know but am probably interested in — is the next great stage, in my view, of search.”

Do you agree? Can we predict what the users want from search? Is this the sort of functionality that we want to use on the web and behind the firewall?

Query Suggestions Help Users Get Unstuck

Several papers at the HCIR09 workshop touched on the topic of query suggestions. Chirag Shah and Gary Marchionini presented a poster about query reuse in exploratory search tasks and Diane Kelly presented results from two different studies that examined people’s use of query suggestions and how usage varied depending on topic difficulty. (Their papers are available for download as part of the proceedings from the workshop.)

According to Shah and Marchionini users often search for the same things. They reuse their previous queries e.g. search for the same things multiple times. Users use their previous searches to refind information and also to expand or further filter their previous searches by adding one or more keywords. There is also a significant overlap between what different users search for suggesting that users have a tendency to express their information needs in similar ways. These results support the idea that query suggestions can be used to help users formulate their query.  Yahoo and YouTube  are two of the systems that uses this technique, where users get suggestions of queries and how they can add more words to their query based on what other users have searched for.

Diane Kelly concludes that users use query suggestion both by typing in the same thing as shown in the suggestion and by clicking on it. Users also tend to use more query suggestions when searching for difficult topics. Query suggestions help users get “unstuck” when they are searching for information.  It is however hard to know whether query suggestions actually return better results. The users expectation and preferences do have an effect on user satisfaction as well. User generated query suggestions are also found to be better than query suggestions generated by the search system. So the mere expectation that the query suggestions will help a user could have an positive effect on his or hers experience…

Query suggestions are meant to help the users formulate a good query that will provide them with relevant results. Query suggestions can also work as with yahoo search where query suggestions both suggest more words to add to the query but also provides the users with suggestions for other related concepts to search for. So searching for Britney Spears will for example suggest the related search for Kevin Federline (even though they are now divorced) and searching for enterprise search will suggest concepts such as relevance, information management and off course the names of the different search vendors.

If you apply this to the enterprise search setting the query suggestion could provide the user with several different kinds of help. Combining the user’s previous searches with things other users searched for but also providing suggestions for recommended queries or concepts. The concepts will be high quality information and suggestions controlled by the team managing the search application. It is a way of combining quick links or best bets with query suggestions and a way to hopefully improve the experienced value of the query suggestions. The next step then is to work with these common queries that users search for and make sure that they return relevant results, but that is an entirely different topic…

Search is Fun

Luckily, search is not all finding critical business information, it also is the ticket to finding new enjoyments. Recently Yahoo has launched a new audio search that lets you search multiple music libraries, including for example iTunes, containing millions of songs. In the search result you can see who provided the song and also listen to a free 30- second clip.

If you are more into video clips, check out the new video search Lumerias. It not only include videos from the large sites like Youtube, but also crawls the entire web for videos. Lumerias also lets you download you favorite clips, which is nice if you want to view them offline or are scared of forgetting where you found them.

Enjoy!

The Evolution of Search in Video Media

Search is becoming more and more an infrastructure necessity and in some areas, and for some users, considered a commodity. However, the evolution of new areas for use of search is growing rapidly both on the web and within the enterprises. Google’s recent acquisition of YouTube is giving us one example of new areas. To search in video material is not simple and I believe we have just seen the very early stage of this new technique.

I am participating in an EU funded project – RUSHES. The project is within the 6th framework program. The aim of the project is among other things to develop techniques for automatic content cataloguing and semantic based indexing. So what impact will this have for the end users and search in video ?

Well, they won’t have to go to a category and search under for example “News and politics”, instead the users will be able to use keywords such as “president” and “scandals” to get clips about Nixon and the Watergate saga. The content provider, on the other hand, won’t have to see the video clip in order to annotate and meta tag it, they will just run the video through a “RUSHES” module and the program will handle the rest. These new scenarios in combination with the semantic web (Web 2.0), will enable new possibilities and business opportunities which we have not even dreamt of before! Like search in video!

Using Search for Web and Enterprise 2.0? Plan for the Future!

Buzzwords such as ‘the long tail’, ‘user generated content’ and ‘web 2.0’ has been around for some time now, but does it automatically mean that everyone understands the way that technology is heading? And what happens with search?

If you haven’t seen the rather old, but brilliant video The machine is us/ing us on Youtube you should. If you have, you should take a look at the updated version.

When working with search on a daily basis one tries to get behind the fuzzy words to see how blogs, wikis, RSS, mash-ups and social tagging among other things will affect the way we interact and do business in the future. Linking Wikipedia to these words is only one example of knowledge sharing that wasn’t possible a few years ago.

The tools that the new web 2.0 development provides us with helps us create and gather more information than ever. As the amount of information increases rapidly, according to Gartner an average company doubles (!) its information every 6-18 months, the need for efficient search solutions becomes crucial in order to handle the vast amounts of data.

All search vendors claim that they will be able to provide effective search for these purposes. As a customer you should ask yourself; what is the future need of my business? Do I need a search solution that provides support for basic functionality such as spellchecking and static relevance adjustments? Is there a need for more advanced functionality that increases cross-functional sharing in the organisation such as dynamic navigators and common workspaces? Do I want to use search to increase knowledge sharing powered by web 2.0 tools?

An interesting and short debate presentation can be found here. In conclusion; Different stages of maturity require different approaches to achieve different outcomes.

These questions may seem to be looking too far ahead? I can say for sure that by asking the right questions from the beginning you can save yourself a lot of time and the company a lot of money (and use your solutions for present as well as future needs).

By knowing your users, your organization and its future you can make search solutions that help enable knowledge discovery, sharing, and connection, which in the end is what web 2.0 and enterprise 2.0 is all about.