IPSN, the IEEE/ACM International Conference on Information Processing in Sensor Networks, is an academic conference on sensor networks with its main focus on information processing aspects of sensor networks. IPSN draws upon many disciplines including signal and image processing, information and coding theory, networking and protocols, distributed algorithms, wireless communications, machine learning, embedded systems design, and data bases and information management. IPSN Events IPSN started in 2001, and following is a list of IPSN events from 2001 to 2014: 13th IPSN 2014, Berlin, Germany, April 15–17, 2014 12th IPSN 2013, Philadelphia, PA, USA, April 8–11, 2013 11th IPSN 2012, Beijing, China, April 16–19, 2012 10th IPSN 2011, Chicago, IL, USA, April 12–14, 2011 9th IPSN 2010, Stockholm, Sweden, April 12–16, 2010 8th IPSN 2009, San Francisco, California, USA, April 13–16, 2009 7th IPSN 2008, (Washington U.) St. Louis, Missouri, USA, April 22–24, 2008 6th IPSN 2007, (MIT) Cambridge, MA, USA, April 25–27, 2007 5th IPSN 2006, (Vanderbilt) Nashville, Tennessee, USA, April 19–21, 2006 4th IPSN 2005, (UCLA) Los Angeles, CA, USA, April 25–27, 2005 3rd IPSN 2004, (UC Berkeley) Berkeley, CA, USA, April 26–27, 2004 2nd IPSN 2003, (Xerox PARC) Palo Alto, CA, USA, April 22–23, 2003 CSP Workshop 2001, (Xerox PARC) Palo Alto, CA (see history subsection for name explanation) Ranking Although there is no official ranking of academic conferences on wireless sensor networks, IPSN is widely regarded by researchers as one of the two (along with SenSys) most prestigious conferences focusing on sensor network research. SenSys focuses more on system issues while IPSN on algorithmic and theoretical considerations. The acceptance rate for 2006 was 15.2% for oral presentations, 25% overall (25 papers +17 poster presentations, out of 165 submissions accepted). History IPSN started off as a workshop at Xerox Palo Alto Research Center in 2001, and it was initially called Collaborative Signal Processing Workshop (CSP Workshop). Following the success of the first event, in 2003, the workshop defined its focus more on sensor networks and was renamed International Workshop on Information Processing in Sensor Networks (IPSN). The event kept the name acronym IPSN from 2003 onwards but the full name changed from International Symposium on Information Processing in Sensor Networks (2003 - 2004) to International Conference on Information Processing in Sensor Networks (2005 - 2007). It is expected that IPSN would keep the full name International Conference on Information Processing in Sensor Networks for the coming years. SPOTS