Pub Date : 2004-03-29DOI: 10.1109/AINA.2004.1283930
H. Inamura, O. Takahashi, Taro Ishikawa, H. Shigeno, Ken-ichi Okada
We propose a new environment for testing the behavior of TCP. We analyze existing test methodologies and show that there is still a need to reduce the loads imposed on both the worker and the expert. The Auto Detector is extensible and so well supports both the automation of predefined tasks and the communication tools needed to ensure gradual refinement by the participants. To show the effectiveness of our proposal, actual software flaws found in HP/UX and the Windows operating system are taken as examples of how to realize the automation of reproduction and detection tasks; it is flexible enough to resolve real-world issues.
{"title":"Automating detection of faults in TCP implementations","authors":"H. Inamura, O. Takahashi, Taro Ishikawa, H. Shigeno, Ken-ichi Okada","doi":"10.1109/AINA.2004.1283930","DOIUrl":"https://doi.org/10.1109/AINA.2004.1283930","url":null,"abstract":"We propose a new environment for testing the behavior of TCP. We analyze existing test methodologies and show that there is still a need to reduce the loads imposed on both the worker and the expert. The Auto Detector is extensible and so well supports both the automation of predefined tasks and the communication tools needed to ensure gradual refinement by the participants. To show the effectiveness of our proposal, actual software flaws found in HP/UX and the Windows operating system are taken as examples of how to realize the automation of reproduction and detection tasks; it is flexible enough to resolve real-world issues.","PeriodicalId":186142,"journal":{"name":"18th International Conference on Advanced Information Networking and Applications, 2004. AINA 2004.","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125121488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2004-03-29DOI: 10.1142/S0219265904001167
S. Kwok, K. Chan
Although Gnutella is the most popular peer-to-peer protocol for file sharing, drawbacks are often found in searching and locating files. They include that (1) a limited number of hosts being searched leads to a limited number of hits; (2) the search result is not accurate due to the search by filename; and (3) an inefficient use of computer resource - spending too much resource on handling other peers' queries. In order to rectify these drawbacks, this paper proposes N-phase search and passive search mechanisms. Compared with the traditional search mechanism, N-phase search increases the number of received query hits by 55.41% and increases the host coverage by 41.23%. For the passive search, the average search time is reduced by 15.33%.
{"title":"An enhanced Gnutella P2P protocol: a search perspective","authors":"S. Kwok, K. Chan","doi":"10.1142/S0219265904001167","DOIUrl":"https://doi.org/10.1142/S0219265904001167","url":null,"abstract":"Although Gnutella is the most popular peer-to-peer protocol for file sharing, drawbacks are often found in searching and locating files. They include that (1) a limited number of hosts being searched leads to a limited number of hits; (2) the search result is not accurate due to the search by filename; and (3) an inefficient use of computer resource - spending too much resource on handling other peers' queries. In order to rectify these drawbacks, this paper proposes N-phase search and passive search mechanisms. Compared with the traditional search mechanism, N-phase search increases the number of received query hits by 55.41% and increases the host coverage by 41.23%. For the passive search, the average search time is reduced by 15.33%.","PeriodicalId":186142,"journal":{"name":"18th International Conference on Advanced Information Networking and Applications, 2004. AINA 2004.","volume":"53 8","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114002226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2004-03-29DOI: 10.1109/AINA.2004.1283980
A. Miyakawa, Kaoru Sugita, Tomoyuki Ishida, Y. Shibata
In Japan , there are traditional Japanese crafting such as fittings, furniture, textile, etc., which are closely related to Japanese culture and life. The design of Japanese houses and their rooms is very important problem to attract people. However, this design is not easy because people have different feelings. In order to deal with this problem, we have developed a digital traditional Japanese crafting system (DTJCS) which provides a presentation space for traditional Japanese crafting. In this paper, we analyze the effect of room change of fittings to people's feelings using the presentation system.
{"title":"Implementation and evaluation of a tradition search engine using sensitivity searching method","authors":"A. Miyakawa, Kaoru Sugita, Tomoyuki Ishida, Y. Shibata","doi":"10.1109/AINA.2004.1283980","DOIUrl":"https://doi.org/10.1109/AINA.2004.1283980","url":null,"abstract":"In Japan , there are traditional Japanese crafting such as fittings, furniture, textile, etc., which are closely related to Japanese culture and life. The design of Japanese houses and their rooms is very important problem to attract people. However, this design is not easy because people have different feelings. In order to deal with this problem, we have developed a digital traditional Japanese crafting system (DTJCS) which provides a presentation space for traditional Japanese crafting. In this paper, we analyze the effect of room change of fittings to people's feelings using the presentation system.","PeriodicalId":186142,"journal":{"name":"18th International Conference on Advanced Information Networking and Applications, 2004. AINA 2004.","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127932174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2004-03-29DOI: 10.1109/AINA.2004.1283867
G. Capi, Y. Nasu
In emergency and hazardous environments, autonomous humanoid robots must make decisions based on the environment conditions. In addition, they must send information to human operator and receive high-level commands. In this paper, we apply intelligent algorithms in order to create an autonomous humanoid robot. In addition, a teleoperation system is developed to communicate with the humanoid robot in a long distance through Internet. The experiments using the 21 degree of freedom "Bonten-Maru" humanoid robot show a good performance of the proposed algorithm.
{"title":"Optimal control of humanoid robot in long distance","authors":"G. Capi, Y. Nasu","doi":"10.1109/AINA.2004.1283867","DOIUrl":"https://doi.org/10.1109/AINA.2004.1283867","url":null,"abstract":"In emergency and hazardous environments, autonomous humanoid robots must make decisions based on the environment conditions. In addition, they must send information to human operator and receive high-level commands. In this paper, we apply intelligent algorithms in order to create an autonomous humanoid robot. In addition, a teleoperation system is developed to communicate with the humanoid robot in a long distance through Internet. The experiments using the 21 degree of freedom \"Bonten-Maru\" humanoid robot show a good performance of the proposed algorithm.","PeriodicalId":186142,"journal":{"name":"18th International Conference on Advanced Information Networking and Applications, 2004. AINA 2004.","volume":"190 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133788767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2004-03-29DOI: 10.1109/AINA.2004.1283811
S. Rejeb, Z. Choukair, S. Tabbane
The increase in the number of users and the development of their needs towards multimedia services with quality of service expectations set challenges to mobile radio network operators whose spectral resources are limited. A judicious resource allocation policy will limit call dropping due to handovers and improve bandwidth allocation between users, taking into account factors related to QoS expectations. QoS acceptance is defined by the SLA contract specifying the parameters of the different levels of acceptance. At global level, new call or handover call acceptance is based on a collective and consensual decision between the different participating networks. Such a consensus aims to take a consistent decision to reserve resources according to one of the levels of service predefined by the caller SLA and then to allow the caller to renegotiate the level of service QoS according to traffic load fluctuation, or to negotiate new resources for new applications requested during the session. The consensus algorithm is parametrized in accordance with the network configuration and take account of QoS constraints such as: new call blocking probability, handovers dropping probability, channels utilization rate...These parameters are deduced by applying Markovian chain with two dimensions. It is adopted to model the different service classes which negotiate the network.
{"title":"Combining Markovian chains and real time agreement protocols to allocate resources in wireless systems","authors":"S. Rejeb, Z. Choukair, S. Tabbane","doi":"10.1109/AINA.2004.1283811","DOIUrl":"https://doi.org/10.1109/AINA.2004.1283811","url":null,"abstract":"The increase in the number of users and the development of their needs towards multimedia services with quality of service expectations set challenges to mobile radio network operators whose spectral resources are limited. A judicious resource allocation policy will limit call dropping due to handovers and improve bandwidth allocation between users, taking into account factors related to QoS expectations. QoS acceptance is defined by the SLA contract specifying the parameters of the different levels of acceptance. At global level, new call or handover call acceptance is based on a collective and consensual decision between the different participating networks. Such a consensus aims to take a consistent decision to reserve resources according to one of the levels of service predefined by the caller SLA and then to allow the caller to renegotiate the level of service QoS according to traffic load fluctuation, or to negotiate new resources for new applications requested during the session. The consensus algorithm is parametrized in accordance with the network configuration and take account of QoS constraints such as: new call blocking probability, handovers dropping probability, channels utilization rate...These parameters are deduced by applying Markovian chain with two dimensions. It is adopted to model the different service classes which negotiate the network.","PeriodicalId":186142,"journal":{"name":"18th International Conference on Advanced Information Networking and Applications, 2004. AINA 2004.","volume":"26 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114011818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2004-03-29DOI: 10.1109/AINA.2004.1283775
T. Katoh, K. Hoshi, N. Shiratori
In multiagent system, it is important for agents to assess the situation prevailing in the system, especially to anticipate other agents' intentions. We argue in favor of cooperation among agents and propose a new method to utilize potential field as a tool for estimation of the environment. In our method, potential of environment gives agents some criteria to assess environmental situations from their own perspective. The potential of each object represents its influence on the environment and the environmental potential, i.e., summation of each object's potential, represents global situation of the environment. Agents' decision of their behavior will be done by refining the policy obtained from potential. We use a trash collecting problem as an example to show the effectiveness of our method. Furthermore, we show the efficiency of our method by some sets of experiments of the trash collecting problem. We also discuss the applicability of our method to hybrid systems, environments where available information has a margin of error, or environments where agents' range of vision are limited.
{"title":"On agents' cooperative behavior based on potential field","authors":"T. Katoh, K. Hoshi, N. Shiratori","doi":"10.1109/AINA.2004.1283775","DOIUrl":"https://doi.org/10.1109/AINA.2004.1283775","url":null,"abstract":"In multiagent system, it is important for agents to assess the situation prevailing in the system, especially to anticipate other agents' intentions. We argue in favor of cooperation among agents and propose a new method to utilize potential field as a tool for estimation of the environment. In our method, potential of environment gives agents some criteria to assess environmental situations from their own perspective. The potential of each object represents its influence on the environment and the environmental potential, i.e., summation of each object's potential, represents global situation of the environment. Agents' decision of their behavior will be done by refining the policy obtained from potential. We use a trash collecting problem as an example to show the effectiveness of our method. Furthermore, we show the efficiency of our method by some sets of experiments of the trash collecting problem. We also discuss the applicability of our method to hybrid systems, environments where available information has a margin of error, or environments where agents' range of vision are limited.","PeriodicalId":186142,"journal":{"name":"18th International Conference on Advanced Information Networking and Applications, 2004. AINA 2004.","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115289469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2004-03-29DOI: 10.1109/AINA.2004.1283806
Daishiro Hirashima, Michiru Tanaka, Y. Teshigawara
At meetings, a variety of outputs such as presentation materials, text minutes, video/audio data are generated. Both meeting participants and absentees can easily understand meeting minutes easily if these data are mutually referred and extracted important points. Therefore, focusing on participants' importance, we have proposed and developed the system that automatically produces Web pages by collecting and editing meeting data with much labor saving so as to easily understand a sequence of meeting. The importances submitted by participants are automatically collected and showed their status to participants in this system. We developed, first, prototype version 1 and then enhanced to version 2 by taking into consideration of evaluation results obtained from user feedbacks. Finally, we state evaluation results of new version, and show the validity of our developed system.
{"title":"Development and evaluation of a minutes system focusing on importance in a meeting","authors":"Daishiro Hirashima, Michiru Tanaka, Y. Teshigawara","doi":"10.1109/AINA.2004.1283806","DOIUrl":"https://doi.org/10.1109/AINA.2004.1283806","url":null,"abstract":"At meetings, a variety of outputs such as presentation materials, text minutes, video/audio data are generated. Both meeting participants and absentees can easily understand meeting minutes easily if these data are mutually referred and extracted important points. Therefore, focusing on participants' importance, we have proposed and developed the system that automatically produces Web pages by collecting and editing meeting data with much labor saving so as to easily understand a sequence of meeting. The importances submitted by participants are automatically collected and showed their status to participants in this system. We developed, first, prototype version 1 and then enhanced to version 2 by taking into consideration of evaluation results obtained from user feedbacks. Finally, we state evaluation results of new version, and show the validity of our developed system.","PeriodicalId":186142,"journal":{"name":"18th International Conference on Advanced Information Networking and Applications, 2004. AINA 2004.","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123054120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2004-03-29DOI: 10.1109/AINA.2004.1283755
Y. Kato, Dongmei Jiang, K. Hakozaki
We propose a streaming video system, which can be used in various system environments. This system has three features for providing real-time video delivery services in the Internet. The first is to use QoS (quality of service) control rules adapting to the system environments. The second is to improve estimation accuracy of the network conditions while a user is watching a stream. The third is to notify QoS degradation factors to the user actively. These features make it possible to provide streaming services with a high level of user satisfaction. We show an experimental system in our laboratory as an implementation example.
{"title":"A proposal of a streaming video system in best-effort networks using adaptive QoS control rules","authors":"Y. Kato, Dongmei Jiang, K. Hakozaki","doi":"10.1109/AINA.2004.1283755","DOIUrl":"https://doi.org/10.1109/AINA.2004.1283755","url":null,"abstract":"We propose a streaming video system, which can be used in various system environments. This system has three features for providing real-time video delivery services in the Internet. The first is to use QoS (quality of service) control rules adapting to the system environments. The second is to improve estimation accuracy of the network conditions while a user is watching a stream. The third is to notify QoS degradation factors to the user actively. These features make it possible to provide streaming services with a high level of user satisfaction. We show an experimental system in our laboratory as an implementation example.","PeriodicalId":186142,"journal":{"name":"18th International Conference on Advanced Information Networking and Applications, 2004. AINA 2004.","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126257907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2004-03-29DOI: 10.1109/AINA.2004.1283850
Minoru Udagawa, N. Sato, M. Uehara, Y. Sakai
Crawling and indexing have been considered regarding existing search engines, but whereas high speed crawling has been studied widely, improvements in the speed of indexing have seldom been discussed. Building a fresh information search engine should, however, unify these arguments concerning crawling and indexing. In this report, an index updating process based on a pipeline that unifies crawling and indexing was proposed. The techniques of a distributed index updating process are discussed with regards to a distributed cooperative search engine.
{"title":"Distributed pipelining processing for index updating method","authors":"Minoru Udagawa, N. Sato, M. Uehara, Y. Sakai","doi":"10.1109/AINA.2004.1283850","DOIUrl":"https://doi.org/10.1109/AINA.2004.1283850","url":null,"abstract":"Crawling and indexing have been considered regarding existing search engines, but whereas high speed crawling has been studied widely, improvements in the speed of indexing have seldom been discussed. Building a fresh information search engine should, however, unify these arguments concerning crawling and indexing. In this report, an index updating process based on a pipeline that unifies crawling and indexing was proposed. The techniques of a distributed index updating process are discussed with regards to a distributed cooperative search engine.","PeriodicalId":186142,"journal":{"name":"18th International Conference on Advanced Information Networking and Applications, 2004. AINA 2004.","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130879300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2004-03-29DOI: 10.1109/AINA.2004.1283818
Changle Li, Jiandong Li, Xuelian Cai
This paper studies the performance of the IEEE 802.11 standard MAC protocol for integrated data and voice transmission with the DCF (distributed coordination function) and the PCF (point coordination function). By simulation, we evaluate the network performance for various protocol parameters, especially, the delay jitter for voice traffic. The main factor to influence delay jitter is given. Numerical results show that it is important to choose appropriate parameters and compromise the number of voice stations and the data traffic throughput to get the enhanced performance of IEEE 802.11. The performance of protocol in theory is derived and is verified by the simulation results.
{"title":"Performance analysis of IEEE 802.11 WLAN to support voice services","authors":"Changle Li, Jiandong Li, Xuelian Cai","doi":"10.1109/AINA.2004.1283818","DOIUrl":"https://doi.org/10.1109/AINA.2004.1283818","url":null,"abstract":"This paper studies the performance of the IEEE 802.11 standard MAC protocol for integrated data and voice transmission with the DCF (distributed coordination function) and the PCF (point coordination function). By simulation, we evaluate the network performance for various protocol parameters, especially, the delay jitter for voice traffic. The main factor to influence delay jitter is given. Numerical results show that it is important to choose appropriate parameters and compromise the number of voice stations and the data traffic throughput to get the enhanced performance of IEEE 802.11. The performance of protocol in theory is derived and is verified by the simulation results.","PeriodicalId":186142,"journal":{"name":"18th International Conference on Advanced Information Networking and Applications, 2004. AINA 2004.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129831762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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