Ontology of Perception - Revision history

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Cory: Created page with '==Ontology of Perception: A Semantic Web Approach to Enhance Machine Perception== Today, many sensor networks and their applications employ a brute force approach to collecting a…'

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Created page with '==Ontology of Perception: A Semantic Web Approach to Enhance Machine Perception== Today, many sensor networks and their applications employ a brute force approach to collecting a…'

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==Ontology of Perception: A Semantic Web Approach to Enhance Machine Perception==
Today, many sensor networks and their applications employ a brute force approach to collecting and analyzing sensor data, and ignore the semantics inherent in the environmental data. Such an approach often wastes valuable resources – including both energy and computational resources – by unnecessarily tasking sensors and generating observations of minimal use. People, on the other hand, have evolved sophisticated mechanisms to efficiently perceive their environment. Such mechanisms include the use of background knowledge to determine what aspects of the environment to focus and a strong interdependent relationship between our ability to observe and perceive. In this paper, we develop an ontology of perception – derived from cognitive theory – that may be used to more efficiently convert observations into perceptions. We evaluate this approach by collecting and analyzing observations of weather conditions, and show up to 50% reduction in the number of observations necessary for analysis.

==System Architecture==

Perception Cycle
[[Image:perception_cycle_new.jpg|none|thumb|500px| Figure 1. Perception Cycle.]]

Perception Process
[[Image:perception_process_new.jpg|none|thumb|500px| Figure 2. Perception Process.]]

Observation Process
[[Image:observation_process_new.jpg|none|thumb|300px| Figure 3. Observation Process.]]

==Ontologies and Knowledge Bases==

Weather Background Knowledge
[[Image:bipartite_graph_black.jpg|none|thumb|600px| Figure 4. ]]
* [http://sonicbanana.cs.wright.edu/activeperception/ont/weather.owl Weather Background Knowledge]
* [http://wiki.knoesis.org/index.php/SSW_Datasets Observation Knowledge Base]
* [http://sonicbanana.cs.wright.edu/activeperception/ont/perception.owl Perception Ontology]
* Perception Datasets:
**[http://sonicbanana.cs.wright.edu/activeperception/all_active_25miles.zip 25 miles (17 observers)]
**[http://sonicbanana.cs.wright.edu/activeperception/all_active_50miles.zip 50 miles (70 observers)]
**[http://sonicbanana.cs.wright.edu/activeperception/all_active_100miles.zip 100 miles (170 observers)]
**[http://sonicbanana.cs.wright.edu/activeperception/all_active_200miles.zip 200 miles (373 observers)]
**[http://sonicbanana.cs.wright.edu/activeperception/all_active_400miles.zip 400 miles (516 observers)]

==Statistics==

====Percepts Generated during Evaluation: # and %====
(p = precipitation, t = temperature, w = wind speed)

25 miles (17 observers)
[[Image:25miles.jpg|none|thumb|600px| Figure 5. ]]
50 miles (70 observers)
[[Image:50miles.jpg|none|thumb|600px| Figure 6. ]]
100 miles (170 observers)
[[Image:100miles.jpg|none|thumb|600px| Figure 7. ]]
200 miles (373 observers)
[[Image:200miles.jpg|none|thumb|600px| Figure 8. ]]
400 miles (516 observers>
[[Image:400miles.jpg|none|thumb|600px| Figure 9. ]]

====Percepts Generated during Evaluation: Trends====

Grounded Percepts
[[Image:trend_grounded.jpg|none|thumb|600px| Figure 10. ]]
Extraneous Percepts
[[Image:trend_extraneous.jpg|none|thumb|600px| Figure 11. ]]

====Theories Generated during Evaluation====
[[Image:trend_theory.jpg|none|thumb|600px| Figure 12. ]]

← Older revision		Revision as of 16:05, 13 May 2011
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		+	#REDIRECT [[Intellego]]
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	==Ontology of Perception: A Semantic Web Approach to Enhance Machine Perception==		==Ontology of Perception: A Semantic Web Approach to Enhance Machine Perception==
	Today, many sensor networks and their applications employ a brute force approach to collecting and analyzing sensor data, and ignore the semantics inherent in the environmental data. Such an approach often wastes valuable resources – including both energy and computational resources – by unnecessarily tasking sensors and generating observations of minimal use. People, on the other hand, have evolved sophisticated mechanisms to efficiently perceive their environment. Such mechanisms include the use of background knowledge to determine what aspects of the environment to focus and a strong interdependent relationship between our ability to observe and perceive. In this paper, we develop an ontology of perception – derived from cognitive theory – that may be used to more efficiently convert observations into perceptions. We evaluate this approach by collecting and analyzing observations of weather conditions, and show up to 50% reduction in the number of observations necessary for analysis.		Today, many sensor networks and their applications employ a brute force approach to collecting and analyzing sensor data, and ignore the semantics inherent in the environmental data. Such an approach often wastes valuable resources – including both energy and computational resources – by unnecessarily tasking sensors and generating observations of minimal use. People, on the other hand, have evolved sophisticated mechanisms to efficiently perceive their environment. Such mechanisms include the use of background knowledge to determine what aspects of the environment to focus and a strong interdependent relationship between our ability to observe and perceive. In this paper, we develop an ontology of perception – derived from cognitive theory – that may be used to more efficiently convert observations into perceptions. We evaluate this approach by collecting and analyzing observations of weather conditions, and show up to 50% reduction in the number of observations necessary for analysis.

@@ Line 16: / Line 16: @@
 ==Ontologies and Knowledge Bases==
 <strong>Weather Background Knowledge</strong>
-[[Image:bipartite_graph_black.jpg|none|thumb|600px| Figure 4. ]]
+[[Image:bipartite_graph_black.jpg|none|thumb|600px| Figure 5. Weather Background Knowledge]]
 * [http://sonicbanana.cs.wright.edu/activeperception/ont/weather.owl Weather Background Knowledge]
 * [http://wiki.knoesis.org/index.php/SSW_Datasets Observation Knowledge Base]
@@ Line 42: / Line 45: @@
 <strong>25 miles (17 observers)</strong>
-[[Image:25miles.jpg|none|thumb|600px| Figure 5. ]]
+[[Image:25miles.jpg|none|thumb|600px| Figure 6. ]]
 <strong>50 miles (70 observers)</strong>
-[[Image:50miles.jpg|none|thumb|600px| Figure 6. ]]
+[[Image:50miles.jpg|none|thumb|600px| Figure 7. ]]
 <strong>100 miles (170 observers)</strong>
-[[Image:100miles.jpg|none|thumb|600px| Figure 7. ]]
+[[Image:100miles.jpg|none|thumb|600px| Figure 8. ]]
 <strong>200 miles (373 observers)</strong>
-[[Image:200miles.jpg|none|thumb|600px| Figure 8. ]]
+[[Image:200miles.jpg|none|thumb|600px| Figure 9. ]]
 <strong>400 miles (516 observers></strong>
-[[Image:400miles.jpg|none|thumb|600px| Figure 9. ]]
+[[Image:400miles.jpg|none|thumb|600px| Figure 10. ]]
@@ Line 56: / Line 59: @@
 <strong>Grounded Percepts</strong>
-[[Image:trend_grounded.jpg|none|thumb|600px| Figure 10. ]]
+[[Image:trend_grounded.jpg|none|thumb|600px| Figure 11. ]]
 <strong>Extraneous Percepts</strong>
-[[Image:trend_extraneous.jpg|none|thumb|600px| Figure 11. ]]
+[[Image:trend_extraneous.jpg|none|thumb|600px| Figure 12. ]]
 ====Theories Generated during Evaluation====
-[[Image:trend_theory.jpg|none|thumb|600px| Figure 12. ]]
+[[Image:trend_theory.jpg|none|thumb|600px| Figure 13. ]]

← Older revision		Revision as of 00:48, 9 July 2010
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	**[http://sonicbanana.cs.wright.edu/activeperception/all_active_200miles.zip 200 miles (373 observers)]		**[http://sonicbanana.cs.wright.edu/activeperception/all_active_200miles.zip 200 miles (373 observers)]
	**[http://sonicbanana.cs.wright.edu/activeperception/all_active_400miles.zip 400 miles (516 observers)]		**[http://sonicbanana.cs.wright.edu/activeperception/all_active_400miles.zip 400 miles (516 observers)]
		+
		+
		+	==Demonstrations==
		+
		+	* [http://harp.cs.wright.edu/perception/ Demo visualization of the Perception Cycle with Weather Background Knowledge]

← Older revision		Revision as of 11:28, 7 July 2010
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	**[http://sonicbanana.cs.wright.edu/activeperception/all_active_200miles.zip 200 miles (373 observers)]		**[http://sonicbanana.cs.wright.edu/activeperception/all_active_200miles.zip 200 miles (373 observers)]
	**[http://sonicbanana.cs.wright.edu/activeperception/all_active_400miles.zip 400 miles (516 observers)]		**[http://sonicbanana.cs.wright.edu/activeperception/all_active_400miles.zip 400 miles (516 observers)]
−
−
−	~~==Demonstrations==~~
−
−	* [http://harp.cs.wright.edu/perception/ Demo visualization of the Perception Cycle with Weather Background Knowledge]

← Older revision		Revision as of 23:20, 6 July 2010
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	**[http://sonicbanana.cs.wright.edu/activeperception/all_active_400miles.zip 400 miles (516 observers)]		**[http://sonicbanana.cs.wright.edu/activeperception/all_active_400miles.zip 400 miles (516 observers)]

		+
		+	==Demonstrations==
		+
		+	* [http://harp.cs.wright.edu/perception/ Demo visualization of the Perception Cycle with Weather Background Knowledge]