Other
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Scientific MembershipsACM, IEEE
Questions and Answers (49) View all
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Answer added in Scheduling6 What methods are suitable for university course scheduling systems?By Rohini Venkat · Christ University, BangaloreRobert WahlstedtI would suggest a generic algorithm because it can improve the accuracy of a recommender system. I would suggest one that utilizes collaborative filte... [more]I would suggest a generic algorithm because it can improve the accuracy of a recommender system. I would suggest one that utilizes collaborative filtering or content based filtering to determine what students might be a good fit based on previous performance whether at the university or in preparatory school. Just as the student can only take so many classes, the website can display only a few books. There needs to be a hard and fast threshold. For more information see: www0.cs.ucl.ac.uk/staff/T.Jambor/publications/multobj_tjambor.pdf https://www.researchgate.net/publication/224584289_The_Collaborative_Filtering_Recommendation_Algorithm_Based_on_BP_Neural_NetworksFollowing
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Answer added in Network Security1 Is Watchguard a professional company in this area?By Xiaoli Li · University of Electronic Science and Technology of ChinaThere is a good course on cousera.org that is starting about internet security in context and building a toolkit in risk management. You can join ISAC... [more]There is a good course on cousera.org that is starting about internet security in context and building a toolkit in risk management. You can join ISACA and look a their online books.Following
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Answer added in Computer Networking3 What's the difference between static, dynamic routing & datagram, virtual circuit packet switching?By Sriram Narra · Koneru Lakshmaiah UniversityThe key difference is at what level of the TCP/IP stack the process occurs in. Dynamic routing mostly happens in layer 3 or level of the TCP/IP stack ... [more]The key difference is at what level of the TCP/IP stack the process occurs in. Dynamic routing mostly happens in layer 3 or level of the TCP/IP stack and virtual circuit switching occurs at layer 4. Dynamic routing works with MAC addresses and virtual circuit switching works with IP addresses. Static routing consists of manually entering in routes into a device's routing table. Since these routes do not change they are considered static. Dynamic routing is when the software learns the location of different devices on the network and finds through protocols (OSPF (open shortest path first), IGRP (a successor to RIP)) the best way tor each device. Once learned the router distributes the best rout to different routers. However this is more fault tolerant because if a failure the protocol can rediscover the location and path. Most of these protocols are in the Link Layer of the TCP/IP stack that some argue corresponds to the data link (layer 2) and the physical layer (layer 1) of the OSI model. This is because protocols such as OSPF are dependent on MAC addresses (hardware addresses). Virtual packet switching happens in layer 4 of the TCP/IP stack. This layer is about reliability, flow and multiplexing of packets. For more info see the following links: http://www.cs.virginia.edu/~mngroup/projects/mpls/documents/thesis/node9.htmlFollowing
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Answer added in Optimization (Mathematical Programming)1 Which models can be used in optimizing power loss in power transmission and distribution?By Patrick Sawerengera · University of MalawiIt might make sense that consumes become informed of just how much power they are using so that power can be monitored and redirected and priority sho... [more]It might make sense that consumes become informed of just how much power they are using so that power can be monitored and redirected and priority should be given to people that truly need power. For examples medical should get priority over a factory. This if often taken under account for zoning rules and regulations.Following
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Answer added in Network Security10 My area of research is on DDoS attacks. On which network (Wired/ Mobile Adhoc Network) are there large problems for research?By Dhanabal Lakshmanan · Kumaraguru College of TechnologyMobile devices such as smartphones and tablets are increasingly used in DDOS attacks particularly Android based devices. An area of research might be ... [more]Mobile devices such as smartphones and tablets are increasingly used in DDOS attacks particularly Android based devices. An area of research might be how to prevent malware from being installed on an Android on 4G or equivalent networks. What tools can we provide the user of an Android with to make them aware that they are downloading a bad app and are participating in a DDOS.Following
Publications (2) View all
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Dataset: Video Surveillance with Alerts
Robert Wahlstedt[show abstract] [hide abstract]
ABSTRACT: VSWA is a program that integrates computer vision to gather non-verbal clues of suspicious behavior. This paper discusses social aspects that characterize that are inconsistent that pose a threat so an alert can go to an authority. These situations can range from a bank holdup to drug trafficking. VSWA uses body posture confidence, walking pace, scanning for weapons in images, and facial expression, as well as scanning for threatening gestures. VSWA does not alert based on one variable alone but rather it has an index of factors that suggest suspicion or guilt. This paper is an overview of algorithms and method of the program. VSWA has the goal of making transit, libraries, schools, and banks safer and necessary scans less invasive. -
SourceAvailable from: Robert Wahlstedt
Article: Quick Summary
Robert Wahlstedt[show abstract] [hide abstract]
ABSTRACT: Quick Summary is an innovate implementation of an automatic document summarizer that inputs a document in the English language and evaluates each sentence. The scanner or evaluator determines criteria based on its grammatical structure and place in the paragraph. The program then asks the user to specify the number of sentences the person wishes to highlight. For example should the user ask to have three of the most important sentences, it would highlight the first and most important sentence in green. Commonly this is the sentence containing the conclusion. Then Quick Summary finds the second most important sentence usually called a satellite and highlights it in yellow. This is usually the topic sentence. Then the program finds the third most important sentence and highlights it in red. The implementations of this technology are useful in a society of information overload when a person typically receives 42 emails a day (Microsoft). Another implication is meeting summary information from video for peace officer records and sports broadcasters. The paper also is a candid look at difficulty that machine learning has in textural translating. However, it speaks on how to overcome the obstacles that historically prevented progress. This research is different from other research attempts because it takes into account heuristics in the paragraph and treats the document instead of having a list of disjointed sentences it also each sentence contributing meaning to other sentences until it achieves a pivotal point in document. Previous methods of a document summary generator included reducing redundant words or junction words until it develops a nuclear core. This paper proposes mathematical meta-data criteria that justify the place of importance of a sentence. Just as tools for the study of relational symmetry in bio-informatics, this tool seeks to classify words with greater clarity.inria. 06/2012;