Search Page Research Articles

YouTube Video Promotion by Cross-Network Association: @Britney to Advertise Gangnam Style

The emergence and rapid proliferation of various social media networks have reshaped the way how video contents are generated, distributed, and consumed in traditional video sharing portals. Nowadays, online videos can be accessed from far beyond the internal mechanisms of the video sharing portals, such as internal search and front page highlight. Recent studies have found that external referrers, such as external search engines and other social media websites, arise to be the new and important portals to lead users to online videos. In this paper, we introduce a novel cross-network collaborative application to help drive the online traffic for given videos in the traditional video portal YouTube by leveraging the high propagation efficiency of the popular Twitter followees. Since YouTube videos and Twitter followees distribute on heterogeneous spaces, we present a cross-network association-based solution framework. In this framework, we first represent YouTube videos and Twitter followees in the corresponding topic spaces separately by employing generative topic models. Then, the cross-network topic spaces are associated from both semantic-based and network-based perspectives through the collective intelligence of the observed overlapped users. Based on the derived cross-network association, we finally match the query YouTube videos and candidate Twitter followees in the same topic space with a unified ranking method. The experiments on a real-world large-scale dataset of more than 2.2 million YouTube videos and 31.8 million tweets from 38,540 YouTube users and 39,400 Twitter users demonstrate the effectiveness and superiority of our solution in which network-based and semantic-based association are integrated.

An improved optimization algorithm of ads’ allocation in sponsored search and the results of experiments

This paper describes a modified version of an algorithm suggested earlier by the authors for optimizing of ads allocation in sponsored search on the main page of search results in response to user search queries to a web search engine. It is demonstrated that the modification of the algorithm reduces appreciably the searching procedure and the algorithm complexity. And finally, the new algorithm undergoes experimental testing on real data sets provided by Yandex.

Suicide Prevention Through Online Gatekeeping Using Search Advertising Techniques

Nurturing gatekeepers is an effective suicide prevention strategy. Internet-based methods to screen those at high risk of suicide have been developed in recent years but have not been used for online gatekeeping. A preliminary study was conducted to examine the feasibility and effects of online gatekeeping. Advertisements to promote e-mail psychological consultation service use among Internet users were placed on web pages identified by searches using suicide-related keywords. We replied to all emails received between July and December 2013 and analyzed their contents. A total of 139 consultation service users were analyzed. The mean age was 23.8 years (SD = 9.7), and female users accounted for 80% of the sample. Suicidal ideation was present in 74.1%, and 12.2% had a history of suicide attempts. After consultation, positive changes in mood were observed in 10.8%, 16.5% showed intentions to seek help from new supporters, and 10.1% of all 139 users actually took help-seeking actions. Online gatekeeping to prevent suicide by placing advertisements on web search pages to promote consultation service use among Internet users with suicidal ideation may be feasible.

NeuroPep: a comprehensive resource of neuropeptides

Neuropeptides play a variety of roles in many physiological processes and serve as potential therapeutic targets for the treatment of some nervous-system disorders. In recent years, there has been a tremendous increase in the number of identified neuropeptides. Therefore, we have developed NeuroPep, a comprehensive resource of neuropeptides, which holds 5949 non-redundant neuropeptide entries originating from 493 organisms belonging to 65 neuropeptide families. In NeuroPep, the number of neuropeptides in invertebrates and vertebrates is 3455 and 2406, respectively. It is currently the most complete neuropeptide database. We extracted entries deposited in UniProt, the database (www.neuropeptides.nl) and NeuroPedia, and used text mining methods to retrieve entries from the MEDLINE abstracts and full text articles. All the entries in NeuroPep have been manually checked. 2069 of the 5949 (35%) neuropeptide sequences were collected from the scientific literature. Moreover, NeuroPep contains detailed annotations for each entry, including source organisms, tissue specificity, families, names, post-translational modifications, 3D structures (if available) and literature references. Information derived from these peptide sequences such as amino acid compositions, isoelectric points, molecular weight and other physicochemical properties of peptides are also provided. A quick search feature allows users to search the database with keywords such as sequence, name, family, etc., and an advanced search page helps users to combine queries with logical operators like AND/OR. In addition, user-friendly web tools like browsing, sequence alignment and mapping are also integrated into the NeuroPep database.Database URL: http://isyslab.info/NeuroPep

Feedback Effects in Search Advertising

Like many other media services, internet search services provide two-sided platforms that coordinate interactions between media consumers and media advertisers. As with other media services, especially newspapers, the possibility has been raised that positive feedback between the consumer and advertising sides of search platforms (more consumer searchers will attract more advertisers, which will attract more consumers that attract even more advertisers, and so on) may amplify an initial advantage in either consumer usage or paid ads with the result that an initially advantaged search engine will capture a dominant share of a search market. To date, however, there has been no empirical research to establish whether two-way feedback between the consumer and paid advertising sides of a search platform exists, whether it is positive or negative if it does exist, and whether such feedback is of sufficient magnitude to significantly influence concentration in search markets. To our knowledge, this paper is the first to present evidence based on a rigorous empirical study for the existence, magnitude and directionality of feedback effects in search markets. Because the consumer/searcher and advertiser sides of a search service may influence each other, the two sides of a search service cannot be studied separately if one wants to fully understand search market dynamics. We employed three-stage least squares to estimate a simultaneous equations model that allowed for ads-consumer usage feedback to estimate a simultaneous equations model using 2007 data reported by Yahoo for over 70 of its local metropolitan markets in the United States. Data reported by Yahoo on clicks on paid search ads for four locally-supplied products were used as a measure of consumer usage and our counts of numbers of paid ads on the search pages elicited by keywords corresponding to the four local products studied were employed as the measure of paid ad sales. Use of metropolitan markets data for a single search service was necessary because, while their services are very similar, the different major independent search services in the U.S. (Google, Yahoo and Microsoft at the time our data was collected) differed sufficiently in the types of data and geographic options they offered advertisers that econometrically sound direct comparisons were not feasible. Use of local markets within a single large country as a source of cross-sectional variation was also deemed preferable to constructing an international cross-section because it would have been difficult to adequately control for country-specific differences in culture, internet use, and regulations affecting the larger advertising market. Our three-stage-least squares estimates provide statistically significant evidence for the existence of positive and quite large two-way feedback between the consumer and advertiser sides of Yahoo’s local internet search service. We use estimates for the model’s parameters to show how feedback between the consumer and advertiser sides of a search service increases the financial return to resources invested in promotional efforts to increase the number of consumers using Yahoo’s search service. Promotion through other media and investments to improve search accuracy are examples of such investments. We also discuss the importance of positive two-way feedback as a mechanism that may contribute to the observed pattern of high concentration in national internet search markets.The empirical findings presented in this paper contribute toward a more complete understanding of search service economics and thereby to the development of policies that might better address the challenges raised by highly concentrated search markets.

Global Ranking, Web Visibility and Accessibility of Quranic Websites - An Evaluation Study-2015

The less visible contents on web are difficult to search, so web users choose other alternatives for desired information. Thus a successful website should be accessible and visible on search engines. This research aims to evaluate sample Quranic website’s web accessibility level and visibility features like: traffic rank, inlinks, and Page load time, search percentage and country visitors. The websites can play an effective role in disseminating the Message of Quran. A more visible website on search engines can be accessed by big number of users and can be beneficial for the people at large scale, which helps to increase its linkage to other websites also a sample data set of 10 Quranic websites/portals were investigated for Web Visibility and Content Accessibility. It was found that the Quranexplorer.com has attained a best traffic ranking among sample dataset. Any website following the Web Content Accessibility Guidelines can disseminate its information to many users despite users having aging or any disability problem like difficulty in hearing or vision. The research revealed several accessibility issues in terms of number of problems in sample dataset and concludes with few recommendations for good quality websites/web portals.

Let me Google that for you: a time series analysis of seasonality in internet search trends for terms related to foot and ankle pain.

BackgroundThe analysis of internet search traffic may present the opportunity to gain insights into general trends and patterns in information seeking behaviour related to medical conditions at a population level. For prevalent and widespread problems such as foot and ankle pain, this information has the potential to improve our understanding of seasonality and trends within these conditions and their treatments, and may act as a useful proxy for their true incidence/prevalence characteristics. This study aimed to explore seasonal effects, general trends and relative popularity of internet search terms related to foot and ankle pain over the past decade.MethodsWe used the Google Trends tool to obtain relative search engine traffic for terms relating to foot and ankle pain and common treatments from Google search and affiliated pages for major northern and southern hemisphere English speaking nations. Analysis of overall trends and seasonality including summer/winter differences was carried out on these terms.ResultsSearches relating to general foot pain were on average 3.4 times more common than those relating to ankle pain, and twice as common as searches relating to heel pain. Distinct seasonal effects were seen in the northern hemisphere, with large increases in search volumes in the summer months compared to winter for foot (p = 0.004, 95 % CI [22.2–32.1]), ankle (p = 0.0078, 95 % CI [20.9–35.5]), and heel pain (p = 0.004, 95 % CI [29.1–45.6]). These seasonal effects were reflected by data from Australia, with the exception of ankle pain. Annual seasonal effects for treatment options were limited to terms related to foot surgery and ankle orthoses (p = 0.031, 95 % CI [3.5–20.9]; p = 0.004, 95 % CI [7.6–25.2] respectively), again increasing in the summer months.ConclusionsA number of general trends and annual seasonal effects were found in time series internet search data for terms relating to foot and ankle pain. This data may provide insights into these conditions at population levels.Electronic supplementary materialThe online version of this article (doi:10.1186/s13047-015-0074-9) contains supplementary material, which is available to authorized users.

YouTube as a Source of Information on Ebola Virus Disease.

Background:The current West Africa epidemic of Ebola virus disease (EVD), which began from Guinea in December 2013, has been the longest and deadliest Ebola outbreak to date. With the propagation of the internet, public health officials must now compete with other official and unofficial sources of information to get their message out.Aims:This study aimed at critically appraising videos available on one popular internet video site (YouTube) as a source of information for Ebola virus disease (EVD).Materials and Methods:Videos were searched in YouTube (http://www.youtube.com) using the keyword “Ebola outbreak” from inception to November 1, 2014 with the default “relevance” filter. Only videos in English language under 10 min duration within first 10 pages of search were included. Duplicates were removed and the rest were classified as useful or misleading by two independent reviewers. Video sources were categorized by source. Inter-observer agreement was evaluated with kappa coefficient. Continuous and categorical variables were analyzed using the Student t-test and Chi-squared test, respectively.Results:One hundred and eighteen out of 198 videos were evaluated. Thirty-one (26.27%) videos were classified as misleading and 87 (73.73%) videos were classified as useful. The kappa coefficient of agreement regarding the usefulness of the videos was 0.68 (P < 0.001). Independent users were more likely to post misleading videos (93.55% vs 29.89%, OR = 34.02, 95% CI = 7.55-153.12, P < 0.001) whereas news agencies were most likely to post useful videos (65.52% vs 3.23%, OR = 57.00, 95% CI = 7.40-438.74, P < 0.001).Conclusions:This study demonstrates that majority of the internet videos about Ebola on YouTube were characterized as useful. Although YouTube seems to generally be a useful source of information on the current outbreak, increased efforts to disseminate scientifically correct information is desired to prevent unnecessary panic among the among the general population.

CRCDA--Comprehensive resources for cancer NGS data analysis.

Next generation sequencing (NGS) innovations put a compelling landmark in life science and changed the direction of research in clinical oncology with its productivity to diagnose and treat cancer. The aim of our portal comprehensive resources for cancer NGS data analysis (CRCDA) is to provide a collection of different NGS tools and pipelines under diverse classes with cancer pathways and databases and furthermore, literature information from PubMed. The literature data was constrained to 18 most common cancer types such as breast cancer, colon cancer and other cancers that exhibit in worldwide population. NGS-cancer tools for the convenience have been categorized into cancer genomics, cancer transcriptomics, cancer epigenomics, quality control and visualization. Pipelines for variant detection, quality control and data analysis were listed to provide out-of-the box solution for NGS data analysis, which may help researchers to overcome challenges in selecting and configuring individual tools for analysing exome, whole genome and transcriptome data. An extensive search page was developed that can be queried by using (i) type of data [literature, gene data and sequence read archive (SRA) data] and (ii) type of cancer (selected based on global incidence and accessibility of data). For each category of analysis, variety of tools are available and the biggest challenge is in searching and using the right tool for the right application. The objective of the work is collecting tools in each category available at various places and arranging the tools and other data in a simple and user-friendly manner for biologists and oncologists to find information easier. To the best of our knowledge, we have collected and presented a comprehensive package of most of the resources available in cancer for NGS data analysis. Given these factors, we believe that this website will be an useful resource to the NGS research community working on cancer.Database URL: http://bioinfo.au-kbc.org.in/ngs/ngshome.html.

A New Competitive Intelligence-based Strategy for Web Page Search

Search Engine Optimization (SEO) is a collection of techniques that allow a site to get more traffic from search engines. Page Ranking is the fundamental concept of SEO and defines as a weighted number that represent the relative importance of the page based on the number of inbound and outbound links. In this paper, I proposed a new type of web page search which is based on the competitive intelligence. It use link-based ranking evolutionary scheme to accommodate users’ preferences. I implemented the prototype system and demonstrate the feasibility of the proposed web page search scheme.

A Noble Approach on Bioinformatics: Smart Sequence Alignment Algorithm applying DNA Replication (SSAADR)

Alignment generally means lining up characters of strings, allowing matches and mismatches and also the characters of one string to be placed opposite spaces made in opposing strings. Sequence alignment arises in many fields, such as: molecular biology, inexact text matching (e.g. spell checkers; web page search), speech recognition and many more. This Paper presents a new implemented algorithm for sequence alignment based on the concepts of some already established algorithms of Bioinformatics which is named as “Smart Sequence Alignment Algorithm applying DNA Replication”, in short “SSAADR”. It aligns two sequences of any length, based on filling up a matrix of size m X n where m is the length of the first sequence and n is the length of the second sequence, and using the techniques of both global and local alignment. To make the proposed algorithm faster, the theory of DNA replication has also been introduced here, according to which, while using the alternative sequences of both DNA sequences instead of the original ones, the execution time of the proposed algorithm SSAADR decreases immensely.

Quality assurance in human genetic testing

Advances in technical developments of genetic diagnostics for more than 50 years, as well as the fact that human genetic testing is usually performed only once in a lifetime, with additional impact for blood relatives, are determining the extraordinary importance of quality assurance in human genetic testing. Abidance of laws, directives, and guidelines plays a major role. This article aims to present the major laws, directives, and guidelines with respect to quality assurance of human genetic testing, paying careful attention to internal and external quality assurance. The information on quality assurance of human genetic testing was obtained through a web-based search of the web pages that are referred to in this article. Further information was retrieved from publications in the German Society of Human Genetics and through a PubMed-search using term quality + assurance + genetic + diagnostics. The most important laws, directives, and guidelines for quality assurance of human genetic testing are the gene diagnostics law (GenDG), the directive of the Federal Medical Council for quality control of clinical laboratory analysis (RiliBÄK), and the S2K guideline for human genetic diagnostics and counselling. In addition, voluntary accreditation under DIN EN ISO 15189:2013 offers a most recommended contribution towards quality assurance of human genetic testing. Legal restraints on quality assurance of human genetic testing as mentioned in §5 GenDG are fulfilled once RiliBÄK requirements are followed.

Attitudes of law university library users towards the use of Web OPAC in Karnataka

Purpose – The purpose of this paper is to provide an overview of two law university libraries in the Karnataka state of southern India and their web-based online public access catalogue (web OPAC). Results from a survey of library users’ attitudes towards the use of the web OPAC, methods adopted to learn how to use the web OPAC, guidance sought to use the web OPAC and the extent of use of the web OPAC search facilities in select law school libraries in Karnataka are reported. Design/methodology/approach – To study the users’ attitudes towards the use of the web OPAC in law university libraries in Karnataka, a questionnaire was developed and distributed to 300 users, including Bachelor Of Legislative Law students, Master of Laws students, research scholars and teaching staff. The sample population was chosen using the convenience sample method, and the researcher received 256 completed and usable questionnaires. A five-point Likert scale was used in the research questionnaire. Typical statistical tests such as mean and standard deviation were applied for the purpose of accuracy. Findings – The results of the survey indicated that 92.1 per cent of respondents were using the web OPAC. Most of the web OPAC users strongly agreed that they learned to use the web OPAC from a library orientation programme. It was found that there are positive attitudes towards the web OPAC search facility. The survey also found that the web OPAC search page has not given satisfactory guidance to web OPAC users. Practical implications – This research paper produces findings of relevance to any academic library to develop and implement a user-friendly web OPAC service. Originality/value – There have been no previous published research studies of the web OPAC and users’ attitudes in the law university libraries in Karnataka state.

The fate of prospective spine studies registered on www.ClinicalTrials.gov

Background contextThere has been concern expressed about research ethics with respect to not fully reporting data collected during clinical studies. One site available for all clinical trials is ClinicalTrials.gov. The original purpose of this site was to facilitate patients seeking a trial for the treatment of their particular condition. The internationally available site offers general information about the study, sponsor name, principal investigator, patient selection criteria, enrollment goal, study design, outcome measures, participating centers, initiation date, date posted, date completed, and other pertinent data. The site can be used to identify studies conducted for a particular condition or intervention. PurposeThe purpose of this study was to investigate the fate of spine-related studies registered on www.ClinicalTrials.gov, with particular focus on the publication rate of completed trials. Study design/SettingAnalysis and classification of clinical studies posted on an international research registry Web page and literature search for related publications. Patient sampleNot applicable. Outcome measuresThe primary outcome measure was publication of the study registered on ClinicalTrials.gov. MethodsMultiple searches were conducted on ClinicalTrials.gov Web site to identify studies related to commonly treated spinal conditions, including herniated disc, degenerative disc disease, stenosis, and spondylolisthesis. Studies related to tumors, fractures, or that included nonspine conditions were not included. For studies classified as completed more than 18 months before this review, literature searches were conducted to determine if the results of the study had been published and factors related to publication. The author has no financial conflict related to this work. ResultsThere were 263 spine-related studies identified from searches on the ClinicalTrials.gov site. Data on the site had the studies classified as follows: 72 completed, 70 active, not recruiting (generally indicates collecting follow-up data), 74 recruiting, 11 recruiting by invitation, 13 not yet recruiting, 18 terminated, 4 withdrawn, and 1 suspended. Among the 72 studies indicated to be completed, 28 (38.9%) have been published. The mean time to publish was 27.9 months from the date of completion. Among unpublished studies, the mean length of time from study completion to the preparation of this article was 62.0 months. There was no difference in the likelihood of publication based on the geographic region of study origin or whether the study was registered before or after initiation. There were statistically significant relationships between the publication rate and the funding type as well as the research type (p<.05) with industrial-funded studies and those evaluating devices having a lower publication rate and those that were funded by a federal agency and comparing surgery to nonoperative care had the highest publication rates. ConclusionsAlthough the 38.9% publication rate for spine-related studies found in this study appears low, it is in line with other studies reporting a 22.8% publication rate for arthroplasty trials and 43.2% for orthopedic trauma trials. In addition to ClinicalTrials.gov Web site fulfilling its original goal of providing patients information about clinical studies, it can also provide a means of tracking publication of prospective studies, changes to protocols, matching publication content to posted study design, and others and raise queries concerning the reasons for not publishing what appear to be well-designed studies. The posting of spine studies before initiation can increase transparency and ability to evaluate clinical trials in spine.

Kvantifikace konkurenčních hodnot dokumentů

The majority of Internet users use the global network to search for different information using fulltext search engines such as Google, Yahoo!, or Seznam. The web presentation operators are trying, with the help of different optimization techniques, to get to the top places in the results of fulltext search engines. Right there is a great importance of Search Engine Optimization and Search Engine Marketing, because normal users usually try links only on the first few pages of the fulltext search engines results on certain keywords and in catalogs they use primarily hierarchically higher placed links in each category. Key to success is the application of optimization methods which deal with the issue of keywords, structure and quality of content, domain names, individual sites and quantity and reliability of backward links. The process is demanding, long-lasting and without a guaranteed outcome. A website operator without advanced analytical tools do not identify the contribution of individual documents from which the entire web site consists. If the web presentation operators want to have an overview of their documents and web site in global, it is appropriate to quantify these positions in a specific way, depending on specific key words. For this purpose serves the quantification of competitive value of documents, which consequently sets global competitive value of a web site. Quantification of competitive values is performed on a specific full-text search engine. For each full-text search engine can be and often are, different results. According to published reports of ClickZ agency or Market Share is according to the number of searches by English-speaking users most widely used Google search engine, which has a market share of more than 80%. The whole procedure of quantification of competitive values is common, however, the initial step which is the analysis of keywords depends on a choice of the fulltext search engine.

General situation of the stereological studies in Turkey

Stereological studies that have been made in Turkey by analyzing the statistical data to obtain different categories. To scientific researchs conducted at Turkey of Stereology field has been reached from www.pubmed.com ,www.ulakbim.com, High Education Board thesis search page and University of Adnan Menderes library.The data obtained have been classed four categories on the brink of according to the university, to year, to the department and by subject.And afterwards, the statistical results belonging to each categories have been received. In this study, it has been studied mostly in the field of hippocampus according to the subjects and most of the publications belong to the department of Histology and Embryology. As for the years, mostly in 2011, studies in this field were done at Ondokuz Mayis University.

A quality assessment of respiratory auscultation material on YouTube

YouTube contains a large volume of medical educational material. This study assessed the quality of respiratory auscultation videos contained in YouTube. Videos were searched for using the terms 'breath sounds', 'respiratory sounds', 'respiratory auscultation' and/or 'lung sounds'. In total, 6,022 videos were located, 36 of which were considered suitable for scoring for video accuracy, comprehensiveness and quality. The average score was 3.32/6 (55.3% ± 1.30). Video score correlated with time-adjusted YouTube metadata: hits per day (0.496, p=0.002) and likes per day (0.534, p=0.001). Video score also correlated with the first search page on which the video was located in the 'breath sounds' and 'lung sounds' searches (-0.571, p=0.001; -0.445, p=0.014, respectively). The quality of videos was variable. Correlation between video score and some metadata values suggests that there is value for their use in judging video quality. However, the large number of videos found and inability to filter these results quickly makes locating educational content difficult.

The over-optimistic portrayal of life-supporting treatments in newspapers and on the Internet: a cross-sectional study using extra-corporeal membrane oxygenation as an example

BackgroundExtra-corporeal membrane oxygenation has been introduced to clinical practice for several decades. It is unclear how internet and newspapers portray the use of extra-corporeal membrane oxygenation. This study were: (1) to quantify the coverage of extra-corporeal membrane oxygenation use in newspapers and on the Internet; (2) to describe the characteristics of extra-corporeal membrane oxygenation users presented in newspaper articles and the Internet web pages in comparison with those shown in extra-corporeal membrane oxygenation studies in Taiwan; and (3) to examine the survival rates of extra-corporeal membrane oxygenation users presented in newspaper articles and the Internet web pages in comparison with those in Taiwan and in the Extracorporeal Life Support Registry Report International Summary for January 2014.MethodsAll issues of Taiwan’s four major newspapers from 2006 to 2010 were reviewed. In October 2011, a search of Internet web pages was performed based on the subjects of “yeh-ko-mo” (extra-corporeal membrane oxygenation in Traditional Chinese), “ECMO”, and “extra-corporeal membrane oxygenation.” All the Internet web pages and newspaper articles recounting the use of extra-corporeal membrane oxygenation were reviewed. The information, such as patient characteristic and the status at hospital discharge, was collected.ResultsThe survival rate of extra-corporeal membrane oxygenation use shown on the Internet (83.97%) was significantly higher than all the survival rates reported in Taiwan’s literature (p < .01) and in the Extracorporeal Life Support Registry Report International Summary for January 2014 (p < .01). In addition, the survival rate of extra-corporeal membrane oxygenation use shown in newspapers (61.54%) was significantly higher than the average survival rate (43%) reported in Taiwan’s literature, the pediatric average survival rate (51%), and the adult average survival rate (47%) in the Extracorporeal Life Support Registry Report International Summary for January 2014.ConclusionsInternet and newspapers both showed over-optimistic survival to hospital discharge for patients sustained by extra-corporeal membrane oxygenation. Internet was more likely to provide optimistic information for aggressive life-supporting treatments such as extra-corporeal membrane oxygenation than newspapers as indicated by survival to hospital discharge.

DBAASP: database of antimicrobial activity and structure of peptides.

The Database of Antimicrobial Activity and Structure of Peptides (DBAASP) is a manually curated database for those peptides for which antimicrobial activity against particular targets has been evaluated experimentally. The database is a depository of complete information on: the chemical structure of peptides; target species; target object of cell; peptide antimicrobial/haemolytic/cytotoxic activities; and experimental conditions at which activities were estimated. The DBAASP search page allows the user to search peptides according to their structural characteristics, complexity type (monomer, dimer and two-peptide), source, synthesis type (ribosomal, nonribosomal and synthetic) and target species. The database prediction algorithm provides a tool for rational design of new antimicrobial peptides. DBAASP is accessible at http://www.biomedicine.org.ge/dbaasp/.

Application of Fuzzy Logic for User Classification in Personalized Web Search

Classifying web users in a personalised search setup is cumbersome due the very nature of dynamism in user browsing history. This fluctuating nature of user behaviour and user interest shall be well interpreted within a fuzzy setting. Prior to analysing user behaviour, nature of user interests has to be collected. This work proposes a fuzzy based user classification model to suit a personalised web search environment. The user browsing data is collected using an established customised browser designed to suit personalisation. The data are fuzzified and fuzzy rules are generated by applying decision trees. Using fuzzy rules, the search pages are labelled to aid grouping of user search interests. Evaluation of the proposed approach proves to be better when compared with Bayesian classifier.