TripAdvisor Sessions: talking tastegraph and sociograph with TripAdvisor Product VP Adam Medros

In part 1 of my interview with TripAdvisor VP of Product Adam Medros we talked through the launch of the TripAdvisor Trip Friends product and the challenges/benefits of living in a Facebook world.

In this part 2 we review the sociograph vs the tastegraph as a means for recommending. Recommendation through the sociograph means drawing advice and responses from those in the same social network as a user. The tastegraph refers to basing recommendations and search results on the preferences of and feedback from people who like the same things as the user regardless of the existence or not of a social connection.

I asked Medros what he thought about these two trends and whether or not he thought the tastegraph was a better recommendation process than the sociograph. Here is what he had to say

Medros of TripAdvisor: When we talk recommendations at TripAdvisor we talk about a hierarchy of advice. The top of the hierarchy is the wisdom of friends and this is what Trip Friends enables. Trip Friends does more than allowing you to ask your friends, it lets you know which friends to ask. At the other end of the hierarchy is what TripAdvisor has been doing for 10 years – wisdom of crowds. [The crowd providing] A broader set of advice and opinions than available from a transaction provider. In the middle there is the tastegraph – we call it “people like me”. Where you can filter down the recommendations and wisdom of friends through “people like you” filters. The tastegraph is better than wisdom of crowd but not as good as wisdom of friends.

There are three approaches to collecting data for recommendation engines. Two don’t work.

1. Give to Get: Asking consumers to do a survey of who they are and use the results of the survey to show recommendations. It doesn't work and no one does it;
2. Black box: Take all of the click steam data – put it into the "black box" and produce an answer for the consumer. Does not work. No matter how much consumers tell you they want recommendations this way, they (the consumers) do not believe the results when they come out. This method is easier for a transaction site that has only transaction data to rely on. But for research site consumers are all over the site for many different reasons. Too noisy to trust the click data; and
3. People Like Me and Finger Printing: Try to finger print a hotel or travel experience by asking people to choose similar experiences. The best version of this is, "If you like this hotel in city X you will like hotel Z in city Y".

Almost all of these approaches have a scale component. The wisdom of friends needs the scale of a billion pins from the Cities I've Visited app. People like me need scale to aggregate up the different finger print characteristics.

My Take

I see the value in having access to friends to complement the crowd content on TripAdvisor. This is also a very good implementation by TripAdvisor. That said I feel that the path to recommendations is through the tastegraph/people like me approach more than the sociograph. I have lots of friends, close friends, that have very different interests to me and whose recommendations I won't take.

The first time I used Trip Friends it took a few clicks more than I expected to get logged in and up and running. Once in, I found the product easy to use and easy to integrate into a search. But looking down the list of friends connected for the destination I was interested in (Hong Kong) I was not convinced that any of them knew any more than I did. The one friend I do have that lives and grew up in Hong Kong did not have that in her profile so was missed.

I think the "like button" is going to rule the world one day. By that I mean that tools and products to allow content consumers (online or off) to positively or negatively vote for an item or content (including Facebook, Digg, StumbledUpon and more) will drive the future of content and transactional consumption. But I think this is more likely to happen in a "people like me" or tastegraph environment than an environment driven by "what do my friends think".

Now to you - tastegraph or sociograph - which one will rule?

PhoCusWright: Trying to sort out the travel planners - Travelmuse, TripIt, GoPlanit, entrip, YourTour, NileGuide etc

Am at the PhoCusWright Travel Innovation Summit. 32 companies - mixture of start-up and mature companies- are pitching a new product in the hope of gaining industry support. We are half way through the summit and a theme is emerging very quickly around travel planning. No surprise of course. Again and again at non-travel internet events it has been the trip planner that has generated the buzz. Witness TripIt and the 2007 TechCrunch40 event and GoPlanIt at the 2008 TechCrunch50 event. Today at PCW we have already heard from TripIt, TripJane and Travelmuse (update and now YourTour update 2 and now NileGuide). At WebInTravel we also heard from entrip. Common functionalities are coming through each of these companies - the ability to integrate and add trip elements and content from other websites; the ability to share and build a network; and the ability to build a "living" itinerary with all elements.

The differences are just as stark as the similarities. Each of these companies (and others) are approaching the business from a different angle.


In the case of TripIt - the experience starts with using TripIt to combine the disparate itineraries that appear in email from an airline, hotel provider, destination service etc.

With entrip - the experience starts with a map. Consumers connect the points they wish to travel between and entrip provides (or facilitates) the content and booking functionality.

At GoPlanIt - the experience starts with a destination. Crowd sourcing and social networking elements recommend a trip itinerary including details on activities.


For Travelmuse - the experience starts with content. A regularly published online travel magazine that has morphed into a trip planning and sharing system.

With YourTour - the experience starts with traveller desired experiences . Building a trip recommendation based on the broad trip desires entered by the consumer.

Through NileGuide - the experience starts with the desire to build a guidebook for a destination. One document to replace the the myriad of documents that even the simpliest of trips end up generating.


And finally for TripJane - the experience starts with Facebook.



I was working on setting some criteria for judging which of these will be the most successful. Trying to set up a scoring or ranking system to judge on areas such as technology, UI, marketing, business model and people. I realised that if I continued with this thinking, then I was setting me up for a very complicated task (lots of work). Critically I quickly came to the realisation that this list of judging criteria was all but irrelevant because there is one success factor that is more important. I call it "survivability". It seems circular that the most important cirteria for success is the ability to survive but in the case of a travel 2.0 start ups that are content heavy I see the most important factor for success the ability of the company to survive for a the next two years. To keep the product up, live, growing, changing and adapting. Staying alive while the long path to consumer acceptance is trod. Giving the company time to test itself and prove that their approach is the right one. I have a personal favourite in the list and there one that I don't get but that's not important. What is important is that these companies need to make sure that they have a lot of runway (ie can survive for a long time on the money that they have) and are able to change and adapt on a dime.

What do you think?

UPDATED - to include YourTour

UPDATED 2 - to include NileGuide