179 Experiment Results HRI AND RECOMMENDER ALGORITHMS 195 APPLYING HRI TO THE DOMAIN OF DIGITAL LIBRARIES, REVISITED Discussion and Limitations. 198 CONCLUSION CHAPTER 9 UNDERSTANDING RECOMMENDER ALGORITHMS, PART II: A USER EVALUATION OUR RECOMMENDER ALGORITHMS 199 USER STUDY 204 Experimental Design Experiment Walkthrough 207 210 Analysis and Discussion 2l3 IMPLICATIONS AND FUTURE WORK..... 217 CONCLUSION 219 CHAPTER 10 IMPLICATIONS, FUTURE WORK, AND CONCLUSIONS 221 SUMMARY OF CONTRIBUTIONS AND IMPLICATIONS Recommending research Papers Re-examining the Recommendation Process 222 Understanding Recommender Algorithms 223 FUTURE WORK CONCLUSION Reproduced with permission of the copyright owner. Further reproduction prohibited without permissionReproduced with permission of the copyright owner. Further reproduction prohibited without permission