Sunday, December 16, 2007
Monday, December 10, 2007
Saturday, December 8, 2007
Wednesday, November 21, 2007
Monday, September 10, 2007
They state that future development could see the deployment of UAVs that are capable of controlling battles in the sky. This is not exact new technology however because Atair Inc was the first company to demonstrate algorithms of this nature.
Daniel Preston, lead engineer for Atair Aerospace, Inc. reported that autonomous unmanned aerial vehicles UAVs have flown using flocking and swarming algorithms. Atair AS has pioneering the development and implementation of flocking and active collision avoidance algorithms on UAVs. The technology was first tested December 16-18, 2004 in Eloy, Ariz. where two fleets of five Onyx systems were airdropped and successfully flocked in tight formation to target. Onyx systems are autonomously guided parafoil systems (UAV gliders).
Swarms are the way to go in my opinion. But not only should they communicate with one another they should take care of one another.
Canadian troops in Afghanistan are being put at risk because of the limited capabilities of the aerial drones that provide them with surveillance, say soldiers on the ground. The use of Sperwer unmanned aerial vehicles are being hindered by extremely hot temperatures.
U.S. Air Force RQ-4 Global Hawk UAVs operating in the Middle East have a unique heat problem. Being relatively small, unmanned, aircraft, they do not have industrial strength air conditioning for their electronic systems.
Hot or cold temperatures are condition that a UAV swarms should able to adapt to, cooling down or heating up the ailing element. In this particular case does size matter? This raises an interesting question, are the reconnaissance swarms that are being worked on to large consequently making them unable to adapt to changing conditions. If the swarms were smaller would they have the same overheating problem? Perhaps smaller swarms (possibly insect size) that can fly closer to the ground could take advantage of cooler areas basically addressing the temperature problem.
A novel by Michael Crichton titled “Prey" weaves in this very concept based on nano-bots, although in his book the UAVs go rogue and start reproducing and improving upon their capabilities based on what they had learned that day (a little far fetched). It's interesting that the subject groups that originally were used to come up with the flocking and swarming concepts were small in nature. And that is the very thing that is being disregarded when developing and testing the algorithms. In this case perhaps size does matter.
Thursday, August 23, 2007
Tuesday, August 7, 2007
Monday, August 6, 2007
There is an interesting article that was just posted by James Hendler on the recent 2007 Science FOO Camp held at the Googleplex in Mountain View California. Hendler led a session on August 4th regarding the future of academic publishing and out of that session came 12 topical areas including (paraphrased, reordered and augmented):
ID, logging, review status tag, trust mechanisms
Data processing and workflow reuse; digital object provenance
Review as a service that can be applied to an object
Downstream Tracking / History (Cross Article or Domain Correlation)
Community Enhanced (Social Networking)
Citation Labeling (Citation Ontology)
Annotation/metadata for non-text scientific objects
Extensible geo-tagging / GIS / Unique Ids for any domain
Semantic Authoring Aids
Authoring Tools that add value for metadata
Unique ID for people (w/o necessarily revealing identity) - persistent ID
Fantasy Genetics - prediction market for science
When a document is place in a workflow, information obtained from each lifecycle state is very valuable yielding product quality control information regarding the personnel who have edited, review, or collaborated on the documents content. Information that is a little more difficult to track but is included in the list is the post release information (basically who touches the information after it is made available). This might be what Hendler refers to when he talks about the peer review status and downstream tracking capability for the document.
Embedded objects in the document carry their own tagging information depending on where it was obtained. There are a couple of new startups that are building around a new tagging idea called Deep Tagging. Deep tagging is extremely useful in organizing and sharing lengthy video and audio files online. Here is how deep tagging works in Veotag:
Users upload a video or audio file to Veotag
Using a web-based deep tagging tool, users can assign tags (Veotags) to specific clips from the file.
When other users are viewing this file, they have the option to play the whole file from the beginning to the end or jump back and forth between different Veotagged clips.
Citation labeling is a different animal all to itself. There are a number of different up and coming products that assist in citation labeling including Zotero. The ability of Zotero to query page content across links is pretty cool because it has the ability automatically capture citation information from the linked source. The added benefit to the product is that it is currently free and open source. It is kind of raw at the moment but it has promise.
Community enhancement is a hot topic at the moment in fact I recently posted an article entitled the Social Networking Revolution.
There is a great workshop coming up called Semantic Authoring, Annotation and Knowledge Markup (SAAKM 2007) which is the 4th International Conference on Knowledge Capturing to be held at Whistler, British Columbia, Canada October 28-31, 2007.
The panel included:
- Travis Katz (Senior Vice President of MySpace)
- Dustin Moskovitz (co founder of Facebook)
- Rich Rosenblatt (CEO of Demand Media)
- Gina Bianchini (CEO of Ning)
- Karl Jacob (CEO of Wallop)
The panel brought up an interesting point that social networking has already taken hold of the online gaming market, not only from gaming sites that host games like chess but through other more sophisticated teaming environments hosted by valve and the like. Other authors including Stefan Decker and Martin Frank envisioned the Social Semantic Desktop as a result of combining the ideas of Semantic Web, Peer-to-Peer computing and Social networking.
With gaming set aside, the transformation from a hyperlinked web content currently used today to a Semantic Web-based technology is another dimension that Danish Nadeem addresses in his thesis called "Cognitive Aspects of Semantic Desktop to Support Personal Information Management". Nadeem and others suggest that a semantic desktop approach would enable the casual web user to take part by publishing, learning and forming their own social network with relatively little difficulty.