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Investigating the Impacts of Expectation Disconfirmation on Web Search 期望不一致对网络搜索的影响研究
Jiqun Liu, C. Shah
Expectation disconfirmation refers to the situation where a user's perceived performance of a system disconfirms her original expectation. Previous information systems studies have demonstrated that expectation disconfirmation can significantly affect a system user's behavior and experience. Inspired by this finding, we go beyond the traditional approach that focuses on the final post-search perception and study the expectation disconfirmation problem in Web search. Our study investigates task difficulty expectation disconfirmation and demonstrates that: (1) unexpectedly difficult task can significantly decrease a user's perceived level of search success and increase the perceived time pressure; (2) the size and direction of task difficulty expectation disconfirmation are significantly associated with Web search behavior; (3) it is possible to predict the state of expectation disconfirmation (especially the negative, unexpectedly difficult cases) based on search behavioral features. This study demonstrates the value of integrating expectation disconfirmation approach with interactive IR research and thus may encourage future researchers to further explore the effects of other aspects of users' expectations and post-search perceptions.
期望不一致是指用户对系统的感知性能与她最初的期望不一致的情况。以往的信息系统研究表明,期望失确会显著影响系统用户的行为和体验。受这一发现的启发,我们超越了关注最终搜索后感知的传统方法,研究了Web搜索中的期望不确认问题。本研究考察了任务难度期望失证,结果表明:(1)意外困难任务显著降低用户的搜索成功感知水平,增加用户的时间压力感知水平;(2)任务难度期望失证的大小和方向与网络搜索行为显著相关;(3)基于搜索行为特征可以预测期望失证状态(特别是负面的、出乎意料的困难情况)。本研究证明了将期望失确认方法与交互式IR研究相结合的价值,从而可以鼓励未来的研究者进一步探索用户期望和搜索后感知的其他方面的影响。
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引用次数: 7
Interacting with Heterogeneous Information Ecologies: Challenges and Opportunities for Students in Diverse and Distributed Learning Environments 与异质资讯生态互动:学生在多元及分散式学习环境中的挑战与机遇
Samuel Dodson
The rise of heterogeneous information leads to questions of how people find, manage, and use information in increasingly fragmented ecologies. The extent to which interactive technologies can be re-designed to help people thrive in these environments should be explored. A two-phase study is proposed to investigate the effects of heterogeneous information on undergraduates' interactions with their information ecologies. Phase one will examine how students interact with the elements of their information ecologies. Phase two will explore how tools can be re-designed to help students more cohesively weave elements of their information ecologies together. An Activity Theoretical approach to these questions will be taken by examining the relationships between people, information, and tools.
异质信息的兴起引发了人们如何在日益分散的生态环境中发现、管理和使用信息的问题。应该探索互动技术可以在多大程度上被重新设计,以帮助人们在这些环境中茁壮成长。本研究分为两个阶段,探讨异质性信息对大学生与其信息生态互动的影响。第一阶段将检查学生如何与他们的信息生态元素互动。第二阶段将探索如何重新设计工具,以帮助学生更有凝聚力地将信息生态的元素编织在一起。通过考察人、信息和工具之间的关系,将采用活动理论方法来解决这些问题。
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引用次数: 2
How Sensitivity Classification Effectiveness Impacts Reviewers in Technology-Assisted Sensitivity Review 技术辅助敏感性评价中敏感性分类有效性如何影响审稿人
G. Mcdonald, C. Macdonald, I. Ounis
All government documents that are released to the public must first be manually reviewed to identify and protect any sensitive information, e.g. confidential information. However, the unassisted manual sensitivity review of born-digital documents is not practical due to, for example, the volume of documents that are created. Previous work has shown that sensitivity classification can be effective for predicting if a document contains sensitive information. However, since all of the released documents must be manually reviewed, it is important to know if sensitivity classification can assist sensitivity reviewers in making their sensitivity judgements. Hence, in this paper, we conduct a digital sensitivity review user study, to investigate if the accuracy of sensitivity classification effects the number of documents that a reviewer correctly judges to be sensitive or not (reviewer accuracy) and the time that it takes to sensitivity review a document (reviewing speed). Our results show that providing reviewers with sensitivity classification predictions, from a classifier that achieves 0.7 Balanced Accuracy, results in a 38% increase in mean reviewer accuracy and an increase of 72% in mean reviewing speeds, compared to when reviewers are not provided with predictions. Overall, our findings demonstrate that sensitivity classification is a viable technology for assisting with the sensitivity review of born-digital government documents.
所有向公众发布的政府文件都必须首先经过人工审查,以识别和保护任何敏感信息,例如机密信息。然而,由于所创建的文档的数量等原因,对出生的数字文档进行无辅助的手动灵敏度审查是不切实际的。先前的工作表明,敏感性分类可以有效地预测文档是否包含敏感信息。然而,由于所有发布的文件都必须人工审核,因此了解敏感性分类是否可以帮助敏感性审核员做出敏感性判断是很重要的。因此,在本文中,我们进行了一项数字敏感性审查用户研究,研究敏感性分类的准确性是否影响审稿人正确判断为敏感或不敏感的文件数量(审稿人准确性)和敏感审查文件所需的时间(审查速度)。我们的研究结果表明,与没有提供预测的审稿人相比,为审稿人提供灵敏度分类预测,从达到0.7平衡精度的分类器中,平均审稿人准确率提高了38%,平均审稿速度提高了72%。总体而言,我们的研究结果表明,敏感性分类是一种可行的技术,有助于对出生的数字政府文件进行敏感性审查。
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引用次数: 5
Lessons Learned from Users Reading Highlighted Abstracts in a Digital Library 用户在数字图书馆阅读高亮摘要的经验教训
Dagmar Kern, Daniel Hienert, Katrin Angerbauer, Tilman Dingler, Pia Borlund
Finding relevant documents is essential for researchers of all disciplines. We investigated an approach for supporting searchers in their relevance decision in a digital library by automatically highlighting the most important keywords in abstracts. We conducted an eye-tracking study with 25 subjects and observed very different search and reading behavior which lead to diverse results. Some of the participants liked that highlighted abstracts accelerate their relevance decision, while others found that they disturb the reading flow. What many agree on is that the quality of highlighting is crucial for trust and system credibility.
寻找相关文献对所有学科的研究人员来说都是必不可少的。我们研究了一种通过自动突出显示摘要中最重要的关键字来支持检索者在数字图书馆中的相关性决策的方法。我们对25名受试者进行了一项眼球追踪研究,观察到不同的搜索和阅读行为,从而得出不同的结果。一些参与者喜欢高亮的摘要可以加快他们对相关性的判断,而另一些人则发现它们扰乱了阅读流程。许多人一致认为,强调的质量对信任和系统可信度至关重要。
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引用次数: 4
The Effects of Working Memory during Search Tasks of Varying Complexity 不同复杂程度搜索任务中工作记忆的影响
Bogeum Choi, Robert G. Capra, Jaime Arguello
We report on a study that evaluated the effects of working memory and task complexity on participants' perceptions, behaviors, and outcomes. Twenty-four participants performed two search tasks of varying complexity and completed a psychometric test to measure working memory ability. Our results found several important trends. First, task complexity had an effect on participants' perceptions about temporal demand and satisfaction with the time spent on the task. Second, participants with higher working memory exerted more search effort (e.g., issued more queries). Third, participants with higher working memory had better outcomes, particularly during more complex tasks. Finally, while participants with lower working memory exerted less effort (engaged in satisficing behaviors) and had weaker outcomes, working memory did not affect participants' post-task perceptions about workload and satisfaction. We discuss implications of our results for developing search tools to support users with varying levels of working memory.
我们报告了一项研究,评估了工作记忆和任务复杂性对参与者感知、行为和结果的影响。24名参与者执行了两项不同复杂程度的搜索任务,并完成了一项测量工作记忆能力的心理测试。我们的研究结果发现了几个重要的趋势。首先,任务复杂性影响了参与者对时间需求和对任务时间满意度的感知。第二,具有较高工作记忆的参与者付出了更多的搜索努力(例如,发出更多的查询)。第三,工作记忆力高的参与者有更好的结果,特别是在更复杂的任务中。最后,虽然工作记忆较低的参与者付出的努力较少(从事令人满意的行为),结果也较弱,但工作记忆并不影响参与者对工作量和满意度的任务后感知。我们讨论了我们的研究结果对开发搜索工具的影响,以支持具有不同工作记忆水平的用户。
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引用次数: 11
Task, Information Seeking Intentions, and User Behavior: Toward A Multi-level Understanding of Web Search 任务、信息寻求意图和用户行为:迈向对网络搜索的多层次理解
Jiqun Liu, M. Mitsui, N. Belkin, C. Shah
According to the cognitive viewpoint of information retrieval (IR) research, a search task can be conceptualized as a sequence of information seeking intentions which both motivate and are influenced by search behaviors. While the behavioral effects of task features have been thoroughly discussed in a large body of literature, how different information seeking intentions in query segments serve as bridges between task and Web search behavior still remains unexplored. To develop a more comprehensive, multi-level (i.e., task level, intention level, and behavior level) understanding of Web search, the authors analyzed intention and search behavior data collected from 693 query segments generated by 40 participants in a controlled lab setting, seeking to answer two main research questions: 1) from task to intention : how do different task features affect users' information seeking intentions at different stages of a search session? 2) from intention to behavior : How is a user's search behavior associated with their information seeking intentions in the current and next query segments respectively? The results demonstrate that: 1) Task features significantly affected the frequency of occurrence of most of the information seeking intentions, and these effects gradually faded away as search sessions proceeded; 2) The presences of a variety of intentions in both current and subsequent query segments were connected with and detectable by different subsets of behavioral measures. This study contributes to the understanding of the connections between task, intentions in query segments, and search behavior, and thereby has implications for designing system affordances for supporting different intentions and search activities in various task stages and contexts.
根据信息检索研究的认知观点,搜索任务可以被定义为一系列信息寻找意图,这些意图既激励搜索行为,又受搜索行为的影响。虽然任务特征的行为影响已经在大量文献中得到了深入的讨论,但查询段中不同的信息搜索意图如何充当任务和Web搜索行为之间的桥梁仍然没有得到探讨。为了对网络搜索有一个更全面、多层次(即任务层面、意图层面和行为层面)的理解,作者分析了40名参与者在受控实验室环境中产生的693个查询片段中收集的意图和搜索行为数据,试图回答两个主要研究问题:1)从任务到意图:不同任务特征如何影响用户在搜索会话的不同阶段的信息寻求意图?2)从意向到行为:用户的搜索行为与当前和下一个查询段的信息寻求意向是如何关联的?结果表明:1)任务特征显著影响大多数信息寻求意图的出现频率,随着搜索会话的进行,这种影响逐渐减弱;2)在当前和随后的查询段中存在的各种意图被不同的行为度量子集所连接和检测。本研究有助于理解任务、查询段中的意图和搜索行为之间的联系,从而对设计系统功能支持不同任务阶段和上下文中的不同意图和搜索活动具有启示意义。
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引用次数: 31
Privacy Nudging in Search: Investigating Potential Impacts 搜索中的隐私推动:调查潜在影响
Steven Zimmerman, Alistair Thorpe, C. Fox, Udo Kruschwitz
From their impacts to potential threats, privacy and misinformation are a recurring top news story. Social media platforms (e.g. Facebook) and information retrieval (IR) systems (e.g. Google), are now in the public spotlight to address these issues. Our research investigates an approach, known as Nudging, applied to the domain of IR, as a potential means to minimize impacts and threats surrounding both matters. We perform our study in the space of health search for two reasons. First, encounters with misinformation in this space have potentially grave outcomes. Second, there are many potential threats to personal privacy as a result of the data collected during a search task. Adopting methods and a corpus from previous work as the foundation, our study asked users to determine the effectiveness of a treatment for 10 medical conditions. Users performed the tasks on 4 variants of a search engine results page (SERP) and a control, with 3 of the SERP's being a Nudge (re-ranking, filtering and a visual cue) intended to reduce impacts to privacy with minimal impact to search result quality. The aim of our work is to determine the Nudge that is least impactful to good decision making while simultaneously increasing privacy protection. We find privacy impacts are significantly reduced for the re-ranking and filtering strategies, with no significant impacts on quality of decision making.
从它们的影响到潜在的威胁,隐私和错误信息是反复出现的头条新闻。社会媒体平台(如Facebook)和信息检索(IR)系统(如Google)现在正处于解决这些问题的公众聚光灯下。我们的研究调查了一种被称为“助推”的方法,它应用于红外领域,作为一种潜在的手段,可以最大限度地减少这两件事的影响和威胁。我们在健康搜索领域进行研究有两个原因。首先,在这个领域遇到错误信息可能会产生严重后果。其次,在搜索任务中收集的数据对个人隐私有许多潜在的威胁。采用以前工作的方法和语料库作为基础,我们的研究要求用户确定10种医疗条件下治疗的有效性。用户在搜索引擎结果页面(SERP)的4个变体和一个控件上执行任务,其中SERP的3个变体是轻推(重新排名、过滤和视觉提示),旨在减少对隐私的影响,同时最小化对搜索结果质量的影响。我们工作的目的是确定对良好决策影响最小的助推,同时增加隐私保护。我们发现重新排序和过滤策略对隐私的影响显著降低,对决策质量没有显著影响。
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引用次数: 16
Interplay of Documents' Readability, Comprehension and Consumer Health Search Performance Across Query Terminology 跨查询术语的文档可读性、理解力和消费者健康搜索性能的相互作用
C. Lopes, Cristina Ribeiro
Because of terminology mismatches, health consumers frequently face difficulties while searching the Web for health information. Difficulties arise in query formulation but also in understanding the retrieved documents. In this work we analyze how documents' readability affects users' comprehension and how both affect the retrieval performance, measured in different ways. In addition, we analyze how performance measures relate with each other. For this purpose we have conducted a laboratory user study with 40 participants. We found that readability is essential for a document to be at least partially relevant and that it becomes even more important if the document has medico-scientific terminology. Moreover, the relevance of a document to a specific user highly depends on its comprehension. In lay queries we found the medical accuracy of users' answers is related to the session's relevance assessments. This shows that users can, at least in part, relate their relevance assessments with the medical accuracy of the documents. On the other hand, this relationship does not exist with medico-scientific queries.
由于术语不匹配,健康消费者在网上搜索健康信息时经常遇到困难。困难出现在查询公式中,也出现在理解检索到的文档中。在这项工作中,我们分析了文档的可读性如何影响用户的理解,以及两者如何影响检索性能,以不同的方式进行测量。此外,我们还分析了绩效指标之间的关系。为此,我们对40名参与者进行了实验室用户研究。我们发现可读性对于文档至少部分相关是必不可少的,如果文档有医学科学术语,可读性就变得更加重要。此外,文档对特定用户的相关性在很大程度上取决于其理解程度。在外行查询中,我们发现用户回答的医学准确性与会话的相关性评估有关。这表明,用户至少可以部分地将他们的相关性评估与文件的医疗准确性联系起来。另一方面,这种关系在医学科学查询中不存在。
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引用次数: 6
HAIR 头发
Sabirat Rubya, Xizi Wang, S. Yarosh
Alcoholics Anonymous (AA) is the largest grassroots peer support group for any health condition. While AA meeting attendance is particularly important for people who are newly sober, newcomers often have trouble finding meetings because of a lack of global up-to-date meeting list due to preference for regional autonomy in AA's organizational structure. Detection of regional webpages containing meetings and extraction of day, time, and address of meetings from those pages are essential steps in making the information available and up-to-date in a global meeting list. However, varied structure of the webpages and the meetings pose challenges in achieving the goal with traditional information retrieval methods. In this paper we propose HAIR: a semi-automated human-aided information retrieval technique and explore its potential to solve this problem. We describe future directions in developing this critical tool and discuss major implications of our work in pointing to the importance of context-specific rather than context-agnostic semi-automated in-formation retrieval techniques by conceptualizing the proposed methods and results in a broader context.
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引用次数: 6
Take Me Out: Space and Place in Library Interactions 带我出去:图书馆互动中的空间和地点
G. Buchanan, Dana Mckay, S. Makri
Information interactions are strongly affected by the place where they occur. Specific locations are often associated with searches on particular topics, and individual users perform different tasks in habituated places. A classic example of habituated space is the commuter who regularly reads the news on the train. This paper investigates these associations through four user studies that examine different uses of place in information interaction. Through this, we reveal the ways in which the location of information interactions makes them effective or ineffective. This extends our interpretation of the role of place in information interaction beyond established foci such as location-based search.
信息交互受到发生地点的强烈影响。特定的位置通常与特定主题的搜索相关联,个人用户在习惯的位置执行不同的任务。习惯性空间的一个典型例子是经常在火车上阅读新闻的通勤者。本文通过四个用户研究来调查这些关联,这些研究检查了信息交互中地点的不同用途。通过这一点,我们揭示了信息交互的位置使它们有效或无效的方式。这扩展了我们对位置在信息交互中的作用的解释,超出了既定的焦点,如基于位置的搜索。
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引用次数: 2
期刊
Proceedings of the 2019 Conference on Human Information Interaction and Retrieval
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